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# OncologyMedicalPhysics.com

Medical Physics Made Easy

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## Posts

- [Oral Exam Prompt: Treatment Machines and Imaging 1](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-1/)
- [Oral Exam Prompt: Treatment Machines and Imaging 2](https://oncologymedicalphysics.com/part-3-therapy-prompts/treatment-machines/oral-exam-prompt-treatment-machines-2/)
- [Oral Exam Prompt: Treatment Machines and Imaging 3](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-3/)
- [Oral Exam Prompt: Treatment Machines and Imaging 4](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-4/)
- [Oral Exam Prompt: Treatment Machines and Imaging 5](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-5/)
- [Oral Exam Prompt: Treatment Machines and Imaging 6](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-6/)
- [Oral Exam Prompt: Treatment Machines and Imaging 7](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-7/)
- [Oral Exam Prompt: Treatment Machines and Imaging 9](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-9/)
- [Oral Exam Prompt: Treatment Machines and Imaging 10](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-10/)
- [Oral Exam Prompt: Treatment Machines and Imaging 11](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-11/)
- [Oral Exam Prompt: Treatment Machines and Imaging 12](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-12/)
- [Oral Exam Prompt: Treatment Machines and Imaging 13](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-13/)
- [Oral Exam Prompt: Treatment Machines and Imaging 14](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-14/)
- [Oral Exam Prompt: Treatment Machines and Imaging 15](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-15/)
- [Oral Exam Prompt: Treatment Machines and Imaging 8](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-8/)
- [Oral Exam Prompt: Treatment Machines and Imaging 16](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-16/)
- [Oral Exam Prompt: Treatment Machines and Imaging 17](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-17/)
- [Oral Exam Prompt: Treatment Machines and Imaging 18](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-18/)
- [Oral Exam Prompt: Treatment Machines and Imaging 19](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-19/)
- [Oral Exam Prompt: Treatment Machines and Imaging 20](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-20/)
- [Oral Exam Prompt: Treatment Machines and Imaging 21](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-21/) - Prompt Collapse What are these devices? Follow-up Expand Why is the end of the applicator made of plastic? Why not steel or another metal? Why are applicators necessary in kV photon therapy? Why don't we use them in MV therapy beams? Why is a filter used on kilovoltage x-ray machines? What are
- [Oral Exam Prompt: Treatment Machines and Imaging 22](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-22/) - Prompt Collapse What is this device? Follow-up Expand How do kilovoltage x-ray therapy machines produce a beam? Draw a diagram of a kilovoltage x-ray generator. Tell me about the target geometry in a kilovoltage unit. Why is it designed this way? How does target geometry impact the clinical beam? What is Bremsstrahlung energy
- [Oral Exam Prompt: Treatment Machines and Imaging 23](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-machines-and-imaging-23/) - Prompt Collapse What is the Modular Transfer Function (MTF)? Follow-up Expand Draw an MTF curve of a typical imaging system. Include axis labels and the range of possible MFT values. What does a high MTF value indicate? What does a low MTF value indicate? What MTF value differentiates between resolvable and
- [Community Prompt: Treatment Machines and Imaging 1](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-treatment-machines-and-imaging-1/)
- [Community Prompt: Treatment Machines and Imaging 2](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-treatment-machines-and-imaging-2/)
- [Oral Exam Prompt: Treatment Planning 1](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-1/)
- [Oral Exam Prompt: Treatment Planning 2](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-2/)
- [Oral Exam Prompt: Treatment Planning 3](https://oncologymedicalphysics.com/part-3-therapy-prompts/treatment-planning-uncertainty-and-plan-qa/oral-exam-prompt-treatment-planning-3/)
- [Oral Exam Prompt: Treatment Planning 4](https://oncologymedicalphysics.com/part-3-therapy-prompts/treatment-planning-uncertainty-and-plan-qa/oral-exam-prompt-treatment-planning-4/)
- [Oral Exam Prompt: Treatment Planning 5](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-5/)
- [Oral Exam Prompt: Treatment Planning 6](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-6/)
- [Oral Exam Prompt: Treatment Planning 7](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-7/)
- [Oral Exam Prompt: Treatment Planning 8](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-8/)
- [Oral Exam Prompt: Treatment Planning 9](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-9/)
- [Oral Exam Prompt: Treatment Planning 10](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-10/)
- [Oral Exam Prompt: Treatment Planning 11](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-11/)
- [Oral Exam Prompt: Treatment Planning 12](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-12/)
- [Oral Exam Prompt: Treatment Planning 13](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-13/)
- [Oral Exam Prompt: Treatment Planning 14](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-14/)
- [Oral Exam Prompt: Treatment Planning 15](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-15/)
- [Oral Exam Prompt: Treatment Planning 16](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-16/) - Prompt Collapse What device is shown in this image? Follow-up Expand Why is this device needed? What would happen if you didn't use it? Are similar devices every used for photon treatments? Why or why not? What factors are needed to manually perform an MU calculation using an electron cutout? What is
- [Oral Exam Prompt: Treatment Planning 17](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-17/) - Prompt Collapse What type of treatment plan is shown here? What is being treated? Follow-up Expand How effective is this treatment? What would a typical prescription be for this type of plan? Where is the posterior fossa? Please explain the field arrangement typically used for this type of treatment. How do
- [Oral Exam Prompt: Treatment Planning 18](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-18/) - Prompt Collapse Please define the terms CTV,ITV, GTV, and PTV. Identify which colored structure corresponds to each. Follow-up Expand What volume must receive a full tumorcidal dose to achieve local control? How do you determine the extent of the GTV? How do you determine the extent of the CTV? What is
- [Oral Exam Prompt: Treatment Planning 19](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-19/) - Prompt Collapse What type of treatment is taking place in this image? Follow-up Expand What disease is being treated? What is a typical prescription? What are some adverse reactions associated with this treatment? What beam parameters are used? (SSD, gantry & collimator angles, energy, dose rate) Why might you use
- [Oral Exam Prompt: Treatment Planning 20](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-20/) - Prompt Collapse How does your treatment planning system model MLC leaves? (Explain attenuation model through all MLC leaf regions) Follow-up Expand What type of treatment plan is MLC leaf tip model most important for? Why? Do you use an MLC leaf position offset? If so, why, and about how big is it? If not,
- [Oral Exam Prompt: Treatment Planning 21](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-treatment-planning-21/) - Prompt Collapse Tell me about these treatment plans. What is being treated? What modality is being used? Follow-up Expand Why might protons be chosen over photons? Quantitatively compare total absorbed dose between photon and proton plans. Given the advantages of proton therapy over photon therapy, why are we even doing photon therapy? Why
- [Community Prompt: Treatment Planning 1](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-treatment-planning-1/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection and Radiobiology 1](https://oncologymedicalphysics.com/part-3-therapy-prompts/brachytherapy-radiation-protection-and-radiobiology-1/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 2](https://oncologymedicalphysics.com/part-3-therapy-prompts/brachytherapy-radiation-protection-and-radiobiology/brachytherapy-radiation-protection-and-radiobiology-2/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 3](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-3/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 4](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-4/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 5](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-5/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 6](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-6/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 7](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-7/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 8](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-8/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 9](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-9/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 10](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-10/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 11](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-11/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 12](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-12/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 13](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-13/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 14](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-14/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 15](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-15/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 16](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-16/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 17](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-17/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 18](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-18/)
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 19](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-19/) - Prompt Collapse What are these? What are they used for? Follow-up Expand What unit is used to specify LDR source strength? How do you measure LDR source strength clinically? How many seeds need to be measured? To what tolerance? What is the "sweet spot" of a well chamber? How do you find it?
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 20](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-20/) - Prompt Collapse Identify the primary and secondary barriers in this room. Follow-up Expand How thick are your vault's primary and secondary barriers? What occupancy factor would you expect for points A, B, and C? How would the occupancy factors for points A, B, and C change if you treated 60 hours per
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 21](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-21/) - Prompt Collapse What is depicted in this image? Follow-up Expand How do you determine the required width (not thickness) of the primary barrier? Where must width be measured for each of the barriers depicted? Identify the location for each barrier. What is the maximum field size of a typical linear accelerator? How is
- [Oral Exam Prompt: Brachytherapy, Radiation Protection, and Radiobiology 22](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-brachytherapy-radiation-protection-and-radiobiology-22/) - Prompt Expand What is a barrier transmission factor as defined in NCRP-151? Follow-up Expand Can you give an equation for determining the number of tenth value layers (TLVs) required to yield a specified barrier transmission factor? What are the sources of radiation that a secondary barrier must shield against? Why are the sources evaluated
- [Community Prompt: Brachytherapy, Radiation Protection, and Radiobiology 1](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-brachytherapy-radiation-protection-and-radiobiology-1/)
- [Community Prompt: Brachytherapy, Radiation Protection, and Radiobiology 2](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-brachytherapy-radiation-protection-and-radiobiology-2/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 2](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-2/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 3](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-3/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 4](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-4/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 5](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-5/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 6](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-6/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 7](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-7/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 8](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-8/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 9](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-9/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 10](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-10/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 11](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-11/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 12](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-12/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 13](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-13/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 14](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-14/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 15](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-15/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 16](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-16/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 17](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-17/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 18](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-18/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 20](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-20/)
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 21](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-21/) - Prompt Collapse Explain the concepts of dose difference and distance-to-agreement in patient specific quality assurance. Follow-up Expand Would dose difference of distance-to-agreement be most appropriate for evaluating an SRS delivery? Why? What is gamma index? Please write the equation for the gamma index as a function of distance-to-agreement and dose difference. What normalization
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 22](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-22/) - Prompt Collapse You are creating a new SRS/SBRT program. What is the minimum staffing required to run such a program? What are each parties' responsibilities? Follow-up Expand Who is ultimately responsible for an SRS/SBRT procedure's success? Explain general, direct, and personal supervision levels in SRS/SBRT. Give an example of where each type is required.
- [Oral Exam Prompt: Patient Safety, Data, Professionalism, and Ethics 1](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-patient-safety-data-professionalism-and-ethics-1/)
- [Oral Exam Prompt: Dosimetry 2](https://oncologymedicalphysics.com/part-3-therapy-prompts/part-3-dosimetry-2/)
- [Oral Exam Prompt: Dosimetry 3](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-3/)
- [Oral Exam Prompt: Dosimetry 4](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-4/)
- [Oral Exam Prompt: Dosimetry 5](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-5/)
- [Oral Exam Prompt: Dosimetry 6](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-6/)
- [Oral Exam Prompt: Dosimetry 7](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-7/)
- [Oral Exam Prompt: Dosimetry 8](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-8/)
- [Oral Exam Prompt: Dosimetry 9](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-9/)
- [Oral Exam Prompt: Dosimetry 10](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-10/)
- [Oral Exam Prompt: Dosimetry 11](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-11/)
- [Oral Exam Prompt: Dosimetry 12](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-12/)
- [Oral Exam Prompt: Dosimetry 13](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-13/)
- [Oral Exam Prompt: Dosimetry 14](https://oncologymedicalphysics.com/uncategorized/oral-exam-prompt-dosimetry-14/)
- [Oral Exam Prompt: Dosimetry 15](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-15/)
- [Oral Exam Prompt: Dosimetry 16](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-16/)
- [Oral Exam Prompt: Dosimetry 17](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-17/)
- [Oral Exam Prompt: Dosimetry 18](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-18/)
- [Oral Exam Prompt: Dosimetry 19](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-19/)
- [Oral Exam Prompt: Dosimetry 20](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-20/)
- [Oral Exam Prompt: Dosimetry 21](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-21/)
- [Oral Exam Prompt: Dosimetry 22](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-22/)
- [Oral Exam Prompt: Dosimetry 23](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-23/) - Prompt Collapse Please explain Bragg-Gray Cavity theory. Can you give an equation for it? Follow-up Expand What are the assumptions required for Bragg-Gray cavity theory? Are there any problems arising from the assumption of Bragg-Gray cavity theory? What are they? How are Spencer-Attix and Burlin cavity theories different from Bragg-Gray? What problems do
- [Oral Exam Prompt: Dosimetry 24](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-24/) - Prompt Collapse What is this equation? Explain what each factor means. Follow-up Expand Why is the AAPM TG-61 protocol based on an air-kerma calibration factor rather than a more direct dose calibration factor? Why is kerma only approximately equal to collision kerma for kilovoltage x-ray beams? Where does the missing energy go? Are
- [Oral Exam Prompt: Dosimetry 25](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-25/) - Prompt Collapse What are each of these curves? Follow-up Expand Why do the curves look so different? Why does the green line decrease with depth while the red and blue lines peak near the maximum depth? Rank these beams in order from least to greatest average accelerating energy. Why is the peak
- [Community Prompt: Dosimetry 1](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-dosimetry-1/)
- [Community Prompt: Dosimetry 2](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-dosimetry-2/)
- [Community Prompt: Dosimetry 3](https://oncologymedicalphysics.com/community-oral-exam-prompts/community-prompt-dosimetry-3/)
- [Oral Exam Prompt: Dosimetry 1](https://oncologymedicalphysics.com/part-3-therapy-prompts/oral-exam-prompt-dosimetry-1/)

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- [After Exam User Survey](https://oncologymedicalphysics.com/after-exam-user-survey/)
- [Tissue Lateral Effect](https://oncologymedicalphysics.com/tissue-lateral-effect/) - Tissue lateral effect describes the situation in which the dose near the surface becomes large relative to the dose at mid-plane for parallel opposed beams.
- [Bremsstrahlung (braking) radiation](https://oncologymedicalphysics.com/bremsstrahlung-braking-radiation/) - Bremsstrahlung radiation is electromagnetic radiation produced as a charged particle slows and scatters during interaction with an atomic nucleus.
- [Neutron Detectors: Activation Foils](https://oncologymedicalphysics.com/neutron-detectors-activation-foils/)
- [Neutron Detectors: Bubble Detector](https://oncologymedicalphysics.com/neutron-detectors-bubble-detector/)
- [Cesium-137](https://oncologymedicalphysics.com/cesium-137/)
- [Iodine-125](https://oncologymedicalphysics.com/iodine-125/) - Basic properties, half-life, and decay scheme of Iodine 125 (I-125).
- [Cobalt-60](https://oncologymedicalphysics.com/cobalt-60/)
- [Iridium-192](https://oncologymedicalphysics.com/iridium-192/) - Basic properties, half-life, and decay scheme of Iridium 192 (Ir-192).
- [Palladium-103](https://oncologymedicalphysics.com/palladium-103/) - Basic properties, half-life, and decay scheme of Palladium 103 (Pd-103).
- [Radium-226](https://oncologymedicalphysics.com/radium-226/)
- [Ytterbium-169](https://oncologymedicalphysics.com/ytterbium-169/) - Basic properties, half-life, and decay scheme of Ytterbium 169 (Yb-169).
- [Physical Constants](https://oncologymedicalphysics.com/physical-constants/) - Provides a reference list of physical constants useful to medical, health, and nuclear physicists.
- [Delta Rays](https://oncologymedicalphysics.com/delta-rays/) - Definition: Delta (δ) rays are secondary electrons liberated from a medium by interaction with a primary electron.
- [Whole Body Irradiation Effects](https://oncologymedicalphysics.com/whole-body-irradiation-effects/) - Discusses the effects of total body radiation exposure including Hematopoietic, Gastrointestinal, and Neurovascular syndromes.
- [Dose Distribution Indexes](https://oncologymedicalphysics.com/dose-distribution-indexes/)
- [Serial and Parallel Organs](https://oncologymedicalphysics.com/serial-and-parallel-organs/) - Simple Explanation of Serial and Parallel organs in Radiation Therapy
- [Units and Quantities](https://oncologymedicalphysics.com/units-and-quantities/) - Physics units and quantities useful to the oncology medical physicist.

## Job Openings

- [Medical Physicist, Board Certified or Board Eligible](https://oncologymedicalphysics.com/jobs/medical-physicist-board-certified-or-board-eligible/)
- [Medical Physicists Test](https://oncologymedicalphysics.com/jobs/medical-physicists-test/)

## Tags

- [Dose](https://oncologymedicalphysics.com/tag/dose/)
- [exposure](https://oncologymedicalphysics.com/tag/exposure/)
- [Imaging](https://oncologymedicalphysics.com/tag/imaging/)
- [radiography](https://oncologymedicalphysics.com/tag/radiography/)
- [Treatment Planning Systems](https://oncologymedicalphysics.com/tag/treatment-planning-systems/)
- [CT](https://oncologymedicalphysics.com/tag/ct/)
- [Dosimetry](https://oncologymedicalphysics.com/tag/dosimetry/)
- [electron](https://oncologymedicalphysics.com/tag/electron/)
- [TG-51](https://oncologymedicalphysics.com/tag/tg-51/)
- [output](https://oncologymedicalphysics.com/tag/output/)
- [calibration](https://oncologymedicalphysics.com/tag/calibration/)
- [NRC](https://oncologymedicalphysics.com/tag/nrc/)
- [I-131](https://oncologymedicalphysics.com/tag/i-131/)
- [Brachytherapy](https://oncologymedicalphysics.com/tag/brachytherapy/)
- [radiation protection](https://oncologymedicalphysics.com/tag/radiation-protection/)
- [4DCT](https://oncologymedicalphysics.com/tag/4dct/)
- [Motion management](https://oncologymedicalphysics.com/tag/motion-management/)
- [Respiration](https://oncologymedicalphysics.com/tag/respiration/)
- [Artifacts](https://oncologymedicalphysics.com/tag/artifacts/)
- [ICRU 62](https://oncologymedicalphysics.com/tag/icru-62/)
- [ITV](https://oncologymedicalphysics.com/tag/itv/)
- [PTV](https://oncologymedicalphysics.com/tag/ptv/)
- [TPS](https://oncologymedicalphysics.com/tag/tps/)
- [Commissioning](https://oncologymedicalphysics.com/tag/commissioning/)
- [simulation](https://oncologymedicalphysics.com/tag/simulation/)
- [computed tomography](https://oncologymedicalphysics.com/tag/computed-tomography/)
- [NRC 10 CFR](https://oncologymedicalphysics.com/tag/nrc-10-cfr/)
- [Regulations](https://oncologymedicalphysics.com/tag/regulations/)
- [Shielding](https://oncologymedicalphysics.com/tag/shielding/)
- [Linac](https://oncologymedicalphysics.com/tag/linac/)
- [Vault](https://oncologymedicalphysics.com/tag/vault/)
- [radiation effects](https://oncologymedicalphysics.com/tag/radiation-effects/)
- [Radiobiology](https://oncologymedicalphysics.com/tag/radiobiology/)
- [Radiation monitoring](https://oncologymedicalphysics.com/tag/radiation-monitoring/)
- [Survey](https://oncologymedicalphysics.com/tag/survey/)
- [Radiation detectors](https://oncologymedicalphysics.com/tag/radiation-detectors/)
- [Dosimeters](https://oncologymedicalphysics.com/tag/dosimeters/)
- [radiation safety committee](https://oncologymedicalphysics.com/tag/radiation-safety-committee/)
- [RSO](https://oncologymedicalphysics.com/tag/rso/)
- [Correction factors](https://oncologymedicalphysics.com/tag/correction-factors/)
- [Ion chamber](https://oncologymedicalphysics.com/tag/ion-chamber/)
- [prostate](https://oncologymedicalphysics.com/tag/prostate/)
- [LDR](https://oncologymedicalphysics.com/tag/ldr/)
- [Radiation exposure](https://oncologymedicalphysics.com/tag/radiation-exposure/)
- [Effects](https://oncologymedicalphysics.com/tag/effects/)
- [Accident](https://oncologymedicalphysics.com/tag/accident/)
- [stochastic effects](https://oncologymedicalphysics.com/tag/stochastic-effects/)
- [deterministic effects](https://oncologymedicalphysics.com/tag/deterministic-effects/)
- [dose limits](https://oncologymedicalphysics.com/tag/dose-limits/)
- [occupation exposure](https://oncologymedicalphysics.com/tag/occupation-exposure/)
- [NCR](https://oncologymedicalphysics.com/tag/ncr/)
- [misadministration](https://oncologymedicalphysics.com/tag/misadministration/)
- [HDR](https://oncologymedicalphysics.com/tag/hdr/)
- [dose calculation](https://oncologymedicalphysics.com/tag/dose-calculation/)
- [monte carlo](https://oncologymedicalphysics.com/tag/monte-carlo/)
- [treatment planning](https://oncologymedicalphysics.com/tag/treatment-planning/)
- [algorithms](https://oncologymedicalphysics.com/tag/algorithms/)
- [MCO](https://oncologymedicalphysics.com/tag/mco/)
- [Optoimization](https://oncologymedicalphysics.com/tag/optoimization/)
- [waveguide](https://oncologymedicalphysics.com/tag/waveguide/)
- [components](https://oncologymedicalphysics.com/tag/components/)
- [linear accelerator](https://oncologymedicalphysics.com/tag/linear-accelerator/)
- [photon](https://oncologymedicalphysics.com/tag/photon/)
- [tables](https://oncologymedicalphysics.com/tag/tables/)
- [Photon beam](https://oncologymedicalphysics.com/tag/photon-beam/)
- [detectors](https://oncologymedicalphysics.com/tag/detectors/)
- [Measurement](https://oncologymedicalphysics.com/tag/measurement/)
- [IMRT QA](https://oncologymedicalphysics.com/tag/imrt-qa/)
- [Gamma Index](https://oncologymedicalphysics.com/tag/gamma-index/)
- [Task groups](https://oncologymedicalphysics.com/tag/task-groups/)
- [TG-218](https://oncologymedicalphysics.com/tag/tg-218/)
- [PDD](https://oncologymedicalphysics.com/tag/pdd/)
- [Dose distributions](https://oncologymedicalphysics.com/tag/dose-distributions/)
- [Well chamber](https://oncologymedicalphysics.com/tag/well-chamber/)
- [Treatment machines](https://oncologymedicalphysics.com/tag/treatment-machines/)
- [QA](https://oncologymedicalphysics.com/tag/qa/)
- [TG-100](https://oncologymedicalphysics.com/tag/tg-100/)
- [FMEA](https://oncologymedicalphysics.com/tag/fmea/)
- [Quality control](https://oncologymedicalphysics.com/tag/quality-control/)
- [Quality assurance](https://oncologymedicalphysics.com/tag/quality-assurance/)
- [Dosimeter](https://oncologymedicalphysics.com/tag/dosimeter/)
- [In vivo dosimetry](https://oncologymedicalphysics.com/tag/in-vivo-dosimetry/)
- [TLD](https://oncologymedicalphysics.com/tag/tld/)
- [film](https://oncologymedicalphysics.com/tag/film/)
- [profiles](https://oncologymedicalphysics.com/tag/profiles/)
- [flatness](https://oncologymedicalphysics.com/tag/flatness/)
- [symmetry](https://oncologymedicalphysics.com/tag/symmetry/)
- [beam steering](https://oncologymedicalphysics.com/tag/beam-steering/)
- [SRS](https://oncologymedicalphysics.com/tag/srs/)
- [SBRT](https://oncologymedicalphysics.com/tag/sbrt/)
- [special procedures](https://oncologymedicalphysics.com/tag/special-procedures/)
- [small field dosimetry](https://oncologymedicalphysics.com/tag/small-field-dosimetry/)
- [Profile Measurement](https://oncologymedicalphysics.com/tag/profile-measurement/)
- [Field Size](https://oncologymedicalphysics.com/tag/field-size/)
- [Electrons](https://oncologymedicalphysics.com/tag/electrons/)
- [Quality Control and Error Prevention](https://oncologymedicalphysics.com/tag/quality-control-and-error-prevention/)
- [Patient-specific treatment delivery QA](https://oncologymedicalphysics.com/tag/patient-specific-treatment-delivery-qa/)
- [Registration](https://oncologymedicalphysics.com/tag/registration/)
- [Fusion](https://oncologymedicalphysics.com/tag/fusion/)
- [Electron treatment planning](https://oncologymedicalphysics.com/tag/electron-treatment-planning/)
- [Effective dose](https://oncologymedicalphysics.com/tag/effective-dose/)
- [Radiation Biology](https://oncologymedicalphysics.com/tag/radiation-biology/)
- [Treatment Planning System QA](https://oncologymedicalphysics.com/tag/treatment-planning-system-qa/)
- [Convolution](https://oncologymedicalphysics.com/tag/convolution/)
- [Photon treatment planning](https://oncologymedicalphysics.com/tag/photon-treatment-planning/)
- [Optimization](https://oncologymedicalphysics.com/tag/optimization/)
- [PET](https://oncologymedicalphysics.com/tag/pet/)
- [Setup](https://oncologymedicalphysics.com/tag/setup/)
- [Treatment](https://oncologymedicalphysics.com/tag/treatment/)
- [OBI](https://oncologymedicalphysics.com/tag/obi/)
- [EPID](https://oncologymedicalphysics.com/tag/epid/)
- [Machine QA](https://oncologymedicalphysics.com/tag/machine-qa/)
- [Ethics](https://oncologymedicalphysics.com/tag/ethics/)
- [Publication](https://oncologymedicalphysics.com/tag/publication/)
- [Research](https://oncologymedicalphysics.com/tag/research/)
- [Professionalism](https://oncologymedicalphysics.com/tag/professionalism/)
- [Conflicts of Interest](https://oncologymedicalphysics.com/tag/conflicts-of-interest/)
- [Institutional Review Boards](https://oncologymedicalphysics.com/tag/institutional-review-boards/)
- [Data](https://oncologymedicalphysics.com/tag/data/)
- [PACS](https://oncologymedicalphysics.com/tag/pacs/)
- [DICOM](https://oncologymedicalphysics.com/tag/dicom/)
- [Computation](https://oncologymedicalphysics.com/tag/computation/)
- [Informatics](https://oncologymedicalphysics.com/tag/informatics/)
- [Diode](https://oncologymedicalphysics.com/tag/diode/)
- [TG-43](https://oncologymedicalphysics.com/tag/tg-43/)
- [MOSFET](https://oncologymedicalphysics.com/tag/mosfet/)
- [ALARA](https://oncologymedicalphysics.com/tag/alara/)
- [Cost analysis](https://oncologymedicalphysics.com/tag/cost-analysis/)
- [Patient safety](https://oncologymedicalphysics.com/tag/patient-safety/)
- [Cardiac devices](https://oncologymedicalphysics.com/tag/cardiac-devices/)
- [Photon fields](https://oncologymedicalphysics.com/tag/photon-fields/)
- [Fetal](https://oncologymedicalphysics.com/tag/fetal/)
- [Other dosimeter designs](https://oncologymedicalphysics.com/tag/other-dosimeter-designs/)
- [NCRP-151](https://oncologymedicalphysics.com/tag/ncrp-151/)
- [Managing Uncertainty](https://oncologymedicalphysics.com/tag/managing-uncertainty/)
- [APBI](https://oncologymedicalphysics.com/tag/apbi/)
- [Interstitial](https://oncologymedicalphysics.com/tag/interstitial/)
- [Survey Detectors](https://oncologymedicalphysics.com/tag/survey-detectors/)
- [3D planning](https://oncologymedicalphysics.com/tag/3d-planning/)
- [field designs](https://oncologymedicalphysics.com/tag/field-designs/)
- [Proton](https://oncologymedicalphysics.com/tag/proton/)
- [Radiation Physics](https://oncologymedicalphysics.com/tag/radiation-physics/)
- [EUD](https://oncologymedicalphysics.com/tag/eud/)
- [Computing & IT](https://oncologymedicalphysics.com/tag/computing-it/)
- [Lung](https://oncologymedicalphysics.com/tag/lung/)
- [Specialized Treatment Machines](https://oncologymedicalphysics.com/tag/specialized-treatment-machines/)
- [Incident Learning Systems](https://oncologymedicalphysics.com/tag/incident-learning-systems/)
- [Medical Event Reporting](https://oncologymedicalphysics.com/tag/medical-event-reporting/)
- [Treatment Room Shielding](https://oncologymedicalphysics.com/tag/treatment-room-shielding/)
- [Treatment Planning for specialized machines](https://oncologymedicalphysics.com/tag/treatment-planning-for-specialized-machines/)
- [CSI](https://oncologymedicalphysics.com/tag/csi/)
- [Cavity theory](https://oncologymedicalphysics.com/tag/cavity-theory/)
- [kilovoltage therapy](https://oncologymedicalphysics.com/tag/kilovoltage-therapy/)
- [reference dosimetry](https://oncologymedicalphysics.com/tag/reference-dosimetry/)
- [Proton Units](https://oncologymedicalphysics.com/tag/proton-units/)
- [Reference and relative dosimetry](https://oncologymedicalphysics.com/tag/reference-and-relative-dosimetry/)

## Beaver Builder Categories

- [OMP global modules](https://oncologymedicalphysics.com/fl-builder-template-category/omp-global-modules/)
- [OMP Templates](https://oncologymedicalphysics.com/fl-builder-template-category/omp-templates/)

## Company

- [Oncology Medical Physics LLC](https://oncologymedicalphysics.com/company/oncology-medical-physics-llc/)
- [TrueNorth Medical Physics LLC](https://oncologymedicalphysics.com/company/truenorth-medical-physics-llc/)

## Job Location

- [Rapid City](https://oncologymedicalphysics.com/job-location/rapid-city/)
- [SD](https://oncologymedicalphysics.com/job-location/sd/)
- [California](https://oncologymedicalphysics.com/job-location/california/)

## Location Type

- [Hybrid](https://oncologymedicalphysics.com/location-type/hybrid/)

## Employment Type

- [Full Time](https://oncologymedicalphysics.com/job-type/full-time/)

## Clinical Specialty

- [Therapy](https://oncologymedicalphysics.com/job-category/therapy/)

## Country

- [United States](https://oncologymedicalphysics.com/country/united-states/)

## State/Province

- [California](https://oncologymedicalphysics.com/state/california/)
- [South Dakota](https://oncologymedicalphysics.com/state/south-dakota/)

## Salary Range

- [$240k-275k](https://oncologymedicalphysics.com/salary-range/240k-275k/)

## Experience

- [2-5 years](https://oncologymedicalphysics.com/experience/2-5-years/)