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Recent Updates

UpdateDate
Part 3 prompt published - Treatment Planning, Uncertainty, and Plan QA5/26/2023
Part 3 prompt published - Treatment Planning, Uncertainty, and Plan QA5/24/2023
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics5/3/2023
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics5/2/2023
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics5/1/2023
Part 3 prompt published - Treatment Planning, Uncertainty, and Plan QA4/20/2023
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology		1/12/2023
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology1/9/2023
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology12/8/2022
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology12/5/2022
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics		12/2/2022
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics		12/1/2022
Part 3 prompt published - Treatment Machines
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics		11/30/2022
Part 3 prompt published - Treatment Planning11/22/2022
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics		8/25/2022
Part 3 prompt published - Treatment Planning8/23/2022
Part 3 prompt published - Treatment Planning8/19/2022
Part 3 prompt published - Treatment Planning8/4/2022
Part 3 community prompt published - Treatment Planning7/21/2022
Add 7 questions: ABR part 1 - Proton Therapy
Added 30 questions: ABR part 2 - Proton Therapy		7/15/2022
Part 3 prompt published - Dosimetry4/28/2022
Part 3 community prompt published - Brachytherapy, Radiation Protection, and Radiobiology4/26/2022
Part 3 prompt published - Treatment Planning3/30/2022
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology3/29/2022
Part 3 community prompt published - Dosimetry3/28/2022
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics
Part 3 prompt published - Dosimetry
Part 3 community prompt published - Dosimetry		3/25/2022
Part 3 community prompt published - Treatment Machines and Imaging3/23/2022
Part 3 prompt published - Treatment Machines and Imaging3/16/2022
Part 3 prompt published - Patient Safety, Data, Professionalism, and Ethics2/23/2022
Part 3 prompt published - Treatment Machines and Imaging2/22/2022
Part 3 community prompt published - Brachytherapy, Radiation Protection, and Radiobiology

Minor update: Added TG-59 to solution of Brachytherapy, Radiation Protection, and Radiobiology prompt #16.
User credit: K.A.		2/17/2022
Part 3 prompt published - Treatment Machines and Imaging2/16/2022
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology2/15/2022
Part 3 prompt published - Brachytherapy, Radiation Protection, and Radiobiology1/25/2022
Part 3 prompt published - Dosimetry1/25/2022
Major Update: Added ABR Part 3 page1/24/2022
Correction: Solution incorrectly used diameter instead of radius when computing inverse square law. (problem ID 5741)
User credit: J.P.		1/10/2022
Minor Update: Biological Responses to Radiation - Radiation Response Curves1/3/2021
Minor Update: Image Registration - Mutual Information12/23/2021
Minor Update: Image Registration - Image Transformations12/17/2021
Minor Update: Image Registration - Point Matching
Minor Update: Image Registration - Surface Matching
Minor Update: Image Registration - Dice Coefficient		12/16/2021
Minor Update: Small Field Dosimetry - Penumbra Broadening Image12/13/2021
Minor Update: Small Field Dosimetry - Detector Size Image12/10/2021
Correction: Point B defined relative to patient midline rather than tandem midline.
User credit: M.G.		10/31/2021
Published page: Geiger Counters7/8/2021
Published page: Iodine-131 Thyroid Therapy7/3/2021
Published page: Cyclotron Particle Accelerators6/23/2021
Published page: Diagnostic Probabilities6/19/2021
Added illustration: Cobalt-60 Machine6/15/2021
Published section: Electron Guns
Published page: Cobalt-60 teletherapy machines		6/10/2021
Correction - Ionizing Radiation Interactions: Compton scatter energy is dependent on electron binding energy (previously photon binding energy)
User credit: M.M.		6/3/2021
Correction - Solution states Cerrobend rather than lead (Problem ID: 6660)
Correction - Solution uses incorrect dmax for 10MV beam (Problem ID: 25611)
User credit: M.M.		5/20/2021
Published page: IMRT Quality Assurance5/19/2021
Added image: Identifying Radionuclides - Energy Resolution
Added image: Identifying Radionuclides - Pulse Height Spectrum

Correction, missing word (problem ID 13453)
Correction, latex rendering (problem ID 23495)
User credit: M.M.		5/17/2021
Published page: Detection Efficiency and Dead Time
Published page: Identifying Radionuclides		5/15/2021
Correction - kV imager do, in fact, deliver dose (problem ID 23809)
User credit: S.M.		5/14/2021
Correction - spelling (problem ID 13391)
User credit: M.M.		5/13/2021
Added image: Counting Statistics - Frequency Function
Added image: CT Theory of Operation - Axial vs Helical Scans		5/12/2021
Correction: Figure - Luminescent Dosimeter Theory of Operation
Hole traps are called "recombination centers" not "recommendation centers."
User credit: M.M.		5/11/2021
Published page: Informatics5/10/2021
Correction: TG-43 dose rate constant units.
User credit: M.W.		5/10/2021
Correction (problem ID 13141)
User credit: B.V.		4/29/2021
Published page: Counting Statistics4/28/2021
Published page: Quantifying Accuracy, Precision, and Error4/25/2021
Correction: NRC 10 CFR - Skin occupational dose limit.
User credit: Y.K.		4/20/2021
Correction: Statistical Radiobiology figures 1 and 2.
User credit: M.A.		4/19/2021
Correction (problem ID 1857)
Correction (problem ID 15738)
Correction (problem ID 20005)
User credit: K.A.		4/13/2021
Correction (problem ID 22323)
Correction (problem ID 24115)
User credit: K.A.		4/12/2021
Correction (problem ID 5602)
User credit: K.A.		4/8/2021
Correction (problem ID 24429)
User credit: A.S.		4/7/2021
Correction: Two-source-rule
User credit: R.R. 		3/28/2021
Published page: Respiratory Motion Management2/22/2021
Correction: Treatment Planning System - Pencil Beam
User credit: I.M.		2/11/2021
Added 35 questions: Part 2 - Treatment Machines
Added 15 questions: Medical Physics for Radiation Oncology - Particle Therapy
Added 6 questions: Part 2 - Dosimetry
Added 11 questions: Part 2 - Safety and Regulations		2/2/2021
Added 24 questions: ABR 2 - Treatment Planning
Added 13 questions: Medical Physics for Radiation Oncology - SRS and SBRT
Added 3 questions: Medical Physics for Radiation Oncology - Special Procedures
Added 35 questions: ABR 1 - Radiation Physics
Added 18 questions: ABR 2 - Imaging
Added 8 questions: ABR 1 - Radiation Measurement
Added 13 questions: ABR 1 - Radiation Safety		1/28/2021
Correction (problem ID 3576)
User credit: D. A.
Added 18 questions: ABR 1 - Therapy
Added 13 questions: ABR 1 - Nuclear
Added 30 questions: ABR 1 - Diagnostic
Added 11 questions: ABR 1 - Math and Statistics		1/26/2021
Added 25 questions: Hand Calculations
Added 10 questions: Simulation
Added 9 questions: Basic radiation shielding
Added 20 questions: Basic treatment planning
Added 10 questions: Calibration of photon and electron beams
Added 12 questions: ABR Part 1 - Clinical linear accelerator principles
Added 51 questions: ABR Part 2 - Linac Design and Quality Assurance
Added 2 questions: Brachytherapy		1/13/2021
Added 5 questions: ABR 1 - Ultrasound
Added 22 questions: ABR 2 - Treatment planning quality assurance
Added 4 questions: Medical Physics for Radiation Oncology - IMRT treatment planning
Added 7 questions: Medical Physics for Radiation Oncology - Prescribing, reporting and evaluation
Added 6 questions: Medical Physics for Radiation Oncology - Quality Assurance

Correction (problem ID 18043)
Correction (problem ID 18022)
Correction (problem ID 18037)
Correction (problem ID 1465)
User credit: A.Y.		1/12/2021
Updated electron PDD table.
User credit: E.R.		1/11/2021
Correction (problem ID 14143)
User credit: A. Y.

Added compensator filter thickness equation.
User credit: E. R.		1/10/2021
Added 14 questions: Basic Atomic and Nuclear Physics1/8/2021
Added 30 questions: Part 2 - Advanced Treatment Planning
Added 26 questions: Medical Physics for Radiation Oncology - IMRT Treatment Planning
Added 2 questions: Medical Physics for Radiation Oncology - Treatment Plan Evaluation
1/6/2021
Added 24 questions: Advanced Brachytherapy1/4/2021
Correction (problem ID 16662)
User credit: A. Y.		1/4/2021
Correction (problem ID 8107)
Correction (problem ID 14413)
Correction (problem ID 3696)
Correction (problem ID 8098)
User credit: A. Y.		1/3/2021
Corrections (multiple spelling and formatting errors) - Computed Tomography
Correction (problem ID 16291)
Correction (problem ID 3459)
Correction (problem ID 3480)
User credit: I.M.		12/30/2020
Updated time and question allocation for all Simulated Exams.
Find out more about the ABR exam breakdown and timing here. (External link)		12/17/20
Correction (problem ID 1131)12/16/2020
Correction (problem ID 1378)12/11/2020
Correction (problem ID 7541)
User credit: James		12/1/2020
Minor update: Photon therapy - Dose horns
Correction (problem ID 3630)
User credit: James		11/28/2020
Server migration11/23/2020
New Page: Affiliate Book Store
11/10/2020
Correction (problem ID 3578)
User credit: Justin
Correction (problem ID 1681)
User credit: James		11/5/2020
Major update: TG-51 electron procedure.
Minor update: Basic Radiation Physics		10/28/2020
Major update: TG-51 photon procedure.10/22/2020
Correction: Spelling, grammar or wording - Magnetic Resonance Imaging
User credit: James		10/15/2020
Image loading speed optimizations.10/14/2020
Correction: Incorrect information (problem ID: 17869)
Correction: Spelling, grammar or wording. (problem ID: 17847)
Bug reporting: Magnetic Resonance Imaging
User credit: James		10/14/2020
Correction: Spelling, grammar, or wording. (problem ID 3992)
User credit: James		10/12/2020
Correction: Linear attenuation equation.
User credit: James		10/8/2020
Software update. Optimizations in progress.10/6/2020
Correction: Spelling, grammar, or wording. (problem ID 5862)
Correction: Spelling, grammar, or wording. (problem ID 8365)
User credit: James		9/30/2020
Site optimizations for mobile. Practice test pages.9/21/2020
Completed update of section icons.9/18/2020
Premium Membership price reduction.9/16/2020
Updated icons: ABR Part 2 Practice Tests
Updated icons: Medical Physics for Radiation Oncology Exam
9/5/2020
Added section icons: Radiobiology8/25/2020
Added section icons: Radioactive Decay8/21/2020
Added section icons: Basic Radiation Physics8/19/2020
Added icons for medical physics test sections: ABR Part 1 Practice Tests8/18/2020
Added illustration of Compton scattering angle: Basic Radiation Physics
Added icons for physics test sections: ABR Part 1 Practice Tests		8/17/2020
Added illustrations of ultrasound image quality phantom, shadowing artifact, enhancement artifact, reverberation artifact, speed artifact, and twinkling artifact: Ultrasound8/8/2020
Added illustrations of ultrasound transducer and ultrasound beam: Ultrasound8/1/2020
Added illustrations of ultrasound modes and system components: Ultrasound7/27/2020
Correction: Triplet production energy equation - Basic Radiation Physics
User credit: JAEHYEON LEE		7/27/2020
Added illustrations of reflection & refraction, acoustic waves, Doppler Ultrasound, and mirror artifact: Ultrasound7/27/2020
Added topic icons, soundwave gif, and interference patter illustrations: Ultrasound7/25/2020
Added page: Ultrasound7/23/2020
Added page: Nuclear Medical Physics7/22/2020
Correction: Spelling, grammar, or wording.6/29/2020
Correction (problem ID 2014)6/29/2020
Correction: Spelling, grammar, or wording.6/29/2020
Correction: Spelling, grammar, or wording.6/28/2020
Updated points values OMP Bounty Hunt6/28/2020
Added Medical Physics for Radiation Oncology Quiz
(917 questions)		6/13/2020
Added 13 questions: Part 1
Added 3 questions: Part 2		5/21/2020
Added 10 questions: Part 25/19/2020
Added 18 questions: Part 15/18/2020
Correction (problem ID 1091)
Correction (problem ID 1082)
Correction (problem ID 8139)
User credit: James		5/18/2020
Correction (problem ID 1461)
Correction (problem ID 1466)
Correction (problem ID 1467)
User credit: Jiahan Zhang		5/18/2020
Added 25 questions: Part 25/17/2020
Added 24 questions: Part 1
Added 32 questions: Part 2		5/14/2020
Minor update: Radiosurgery User credit: K.B.5/13/2020
New Page: Radiosurgery5/4/2020
Major Update: Treatment Planning Systems5/4/2020
Added countdown to test day. User credit: James4/30/2020
Improved solution (problem ID 8304) User credit: James4/30/2020
Improved solution (problem ID 8277) User credit: James4/30/2020
Wording correction (problem ID 8466) User credit: James4/30/2020
Added 26 questions: Ultrasound4/29/2020
Minor Update: Basic Radiation Physics4/23/2020
Major Update: Treatment Planning Systems - Algorithms, Commissioning and QA4/22/2020
Major Update: Brachytherapy Clinical Applications4/21/2020
Major Update: Special Procedures - TBI and TSET4/21/2020
Update and corrections: Radioactive Equilibrium
User credit: James		4/21/2020
Major Update: Linear Accelerator Dosimetry and Quality Assurance4/20/20
OMP Bounty Hunt Awards Rewards
Program Launch		4/20/20
Major Update: Brachytherapy Dosimetry and Quality Assurance4/17/2020
Spelling correction (Electron Therapy Physics)
User credit: James		4/16/2020
Wording correction (problem ID 3756)
User credit: James		4/15/2020
Wording correction (problem ID 3744)
User credit: James		4/15/2020
Image annotation (Electron PDD)
User credit: James		4/14/2020
Wording correction (problem ID 5870)
User credit: James		4/14/2020
Wording correction (problem ID 5962)
User credit: James		4/13/2020
Formatting Correction (problem ID 8312)
User credit: James		4/12/2020
Proofing edits: All Practice tests, Radiation Physics, Medical Imaging, and Equipment pages4/9/2020
Formatting Correction (problem ID 5741)
User credit: James		4/7/2020
Formatting Correction (problem ID 8568)
User credit: James		4/7/2020
Category correction (problem ID 5959)
User credit: James		4/6/2020
Formatting Correction (problem ID 5935)
User credit: James		4/6/2020
Part 3 Mock Oral Exams Cancelled4/2/2020
Minor update: Photon Therapy Physics - SSD Dependence
User credit: V.F.		3/28/2020
Reorganization of content sections3/26/2020
Update: Clinical Linear Accelerators3/26/2020
Added 50 questions: 1378 total questions3/23/2020
Added 25 questions: 1328 total questions3/2/2020
Update: Magnetic Resonance Imaging3/1/2020
Major Update: Part 2 Practice Tests
(Introduced Full length practice tests, reorganization of Test Your Way)		2/28/2020
Added 10 questions: 1303 total questions2/27/2020
Added 5 questions: 1293 total questions2/26/2020
Major Update: Part 1 Practice Tests
(Introduced Full length practice tests, reorganization of Test Your Way)		2/25/2020
Added 5 questions: 1288 total questions2/25/2020
Added 5 questions: 1283 total questions2/24/2020
Added 5 questions: 1278 total questions2/21/2020
Added 5 questions: 1273 total questions2/20/2020
Minor update: Computed Tomography2/19/2020
Added 5 questions: 1268 total questions2/19/2020
Added 5 questions: 1263 total questions2/18/2020
OncologyMedicalPhysics.com is now taking sign ups for ABR Part 3 Therapy mock oral exams!2/17/2020
Added 5 questions: 1258 total questions2/17/2020
Added 5 questions: 1253 total questions2/14/2020
Added 5 questions: 1248 total questions2/13/2020
Added 5 questions: 1243 total questions2/12/2020
Added 5 questions: 1238 total questions2/11/2020
Added 5 questions: 1233 total questions2/10/2020
Added 5 questions: 1228 total questions2/7/2020
Added 5 questions: 1223 total questions2/6/2020
Added 5 questions: 1218 total questions2/5/2020
Added 5 questions: 1213 total questions2/4/2020
Added 5 questions: 1208 total questions2/3/2020
Added 5 questions: 1203 total questions1/31/2020
Added 5 questions: 1198 total questions1/30/2020
Page update: Image Quality Metrics1/29/2020
Added 5 questions: 1193 total questions1/29/2020
Added 5 questions: 1188 total questions1/28/2020
Page update: Kilovoltage X-ray Generation1/27/2020
Page update: Computed Tomography1/27/2020
Added 5 questions: 1183 total questions1/27/2020
Added 5 questions: 1178 total questions1/24/2020
Added 5 questions: 1173 total questions1/23/2020
Page update: Radiation Detectors1/22/2020
Added 5 questions: 1168 total questions1/22/2020
Added 5 questions: 1163 total questions1/21/2020
Added 5 questions: 1158 total questions1/20/2020
Added 5 questions: 1153 total questions1/17/2020
Added 5 questions: 1148 total questions1/16/2020
Added 5 questions: 1143 total questions1/15/2020
Added 5 questions: 1138 total questions1/14/2020
Added 5 questions: 1133 total questions1/13/2020
Added 5 questions: 1128 total questions1/10/2020
Added 5 questions: 1123 total questions1/9/2020
Added 5 questions: 1118 total questions1/8/2020
Added 5 questions: 1113 total questions1/7/2020
Added 5 questions: 1108 total questions1/6/2020
Page update: Electron Therapy Physics1/3/2020
Added 5 questions: 1103 total questions1/3/2020
Added 5 questions: 1098 total questions1/2/2020
Updated page: Radiobiology12/31/2019
Added 5 questions: 1093 total questions12/31/2019
Added 5 questions: 1088 total questions12/30/2019
Updated page: Radioactive Decay12/27/2019
Added 5 questions: 1083 total questions12/27/2019
Added page: Basic Radiation Physics12/26/2019
Added 5 questions: 1078 total questions12/26/2019
Added page: Treatment Planning System Commissioning, Validation, and Quality Assurance12/24/2019
Added 5 questions: 1073 total questions12/24/2019
Added 5 questions: 1068 total questions12/23/2019
Added 5 questions: 1063 total questions12/20/2019
Added 5 questions: 1058 total questions12/19/2019
Added 5 questions: 1053 total questions12/18/2019
Added 5 questions: 1048 total questions12/17/2019
Added 5 questions12/16/2019
Added 5 questions12/12/2019
Added 5 questions12/11/2019
Added 5 questions12/10/2019
Added 5 questions12/9/2019
Added page: Photon Therapy8/22/2019
Added page: Brachytherapy Treatment Sites6/24/2019
Added page: LDR and HDR Brachytherapy6/24/2019
Added Knowledge Test to: Brachytherapy Dosimetry6/3/2019
Added Knowledge Test to: Total Body Irradiation6/3/2019
Added Knowledge Test to: Total Skin Electron Therapy (TSET)6/3/2019
Added Knowledge Test to: High Dose Rate Brachytherapy6/3/2019
Added Knowledge Test to: Dose Calculations: Hand Methods6/2/2019
Added Knowledge Test to: Plan Optimization6/2/2019
Added Knowledge Test to: Photon Dose Calculation: Algorithmic Methods6/2/2019
Added Knowledge Test to: Determining Margins6/2/2019
Added Knowledge Test to: NCRP 116: Limits of Exposure to Ionizing Radiation6/1/2019
Added Knowledge Test to: Shielding for Imaging Systems6/1/2019
Added Knowledge Test to: Vault Shielding NCRP 1516/1/2019
Added Knowledge Test to: Tissue Compensators6/1/2019
Added Knowledge Test to: Magnetrons and Klystrons5/31/2019
Added Knowledge Test to: Accelerating Waveguides5/31/2019
Added Knowledge Test to: Linac Design5/31/2019
Added Knowledge Test to: Van de Graaff Accelerators5/31/2019
Added Knowledge Test to: MRI Artifacts5/30/2019
Added Knowledge Test to: Magnetic Resonance Imaging5/30/2019
Added Knowledge Test to: CT Special Topics5/30/2019
Added Knowledge Test to: Patient Positions5/30/2019
Added Knowledge Test to: CT Artifacts5/28/2019
Major Update: ABR Part 2 Practice Tests5/27/2019
Added Knowledge Test to: CT Dosimetry5/22/2019
Added Knowledge Test to: CT Basic Operations5/15/2019
Major Update: CT Basic Operations5/15/2019
Added page: CT Special Topics5/10/2019
Added Knowledge Test to: Image Registration5/7/2019
Added Knowledge Test to: Image Quality Metrics5/7/2019
Added Knowledge Test to: Kilovoltage X-ray Generation5/6/2019
Added Knowledge Test to: Plastic Scintillation Detectors5/6/2019
Added Knowledge Test to: MOSFET detectors5/6/2019
Added Knowledge Test to: Luminescent Dosimeters5/6/2019
Added Knowledge Test to: Ion Chambers5/3/2019
Added Knowledge Test to: Film5/3/2019
Added Knowledge Test to: Diode Detectors5/2/2019
Added Knowledge Test to: Common Radionuclides5/2/2019
Added Knowledge Test to: Radioactive Decay Modes4/30/2019
Added Knowledge Test to: Decay Statistics4/30/2019
Added Knowledge Test to: Radiobiology4/29/2019
Added Knowledge Test to: Electron Dose Distributions4/29/2019
Added Knowledge Test to: Cavity Theory4/29/2019
Added Knowledge Test to: Quantifying Radiation4/26/2019
Added Knowledge Test to: Interactions of Ionizing Radiation4/25/2019
Added Knowledge Test to: Types of Radiation4/25/2019
Added 15 questions: ABR Part 1: Clinical Content4/23/2019
Added 15 questions: ABR Part 1: Clinical Content4/22/2019
Update: Added EQD to Radiobiology4/22/2019
Added 5 questions: ABR Part 1: Clinical Content4/21/2019
Added 17 questions: ABR Part 1: Clinical Content4/17/2019
Added 50 questions: ABR Part 1: Clinical Content4/15/2019
Added 38 questions: ABR Part 1: Clinical Content4/11/2019
Added page: MRI Artifacts4/5/2019
Added page: Magnetic Resonance Imaging4/1/2019
Added page: Brachytherapy Quality Assurance3/29/2019
Added page: Low Dose Rate Interstital Brachytherapy: Prostate and Beyond3/27/2019
Added page: Intravascular Brachytherapy (TG-60 and TG-149)3/22/2019
Added page: Gynecological Tandem And Ovoid Brachytherapy3/21/2019
Added page: Ocular Brachytherapy: COMS Protocol and TG-1293/21/2019
Added page: Yttrium-90 Microsphere Brachytherapy (TG-144)3/19/2019
Added page: High Dose Rate Brachytherapy3/16/2019
Added page: Remote Afterloaders3/15/2019
Added page: Brachytherapy Dosimetry3/14/2019
Added page: Common Radionuclides3/14/2019
Added page: Radium-2263/14/2019
Added page: Yttrium-903/14/2019
Added page: Part 2 Test Bank3/13/2019
Added page: Part 1 Test Bank3/13/2019
Added page: All Questions3/13/2019
Added 10 questions3/5/2019
Added 10 questions3/4/2019
Added 35 questions3/3/2019
Added 10 questions3/2/2019
Added 10 questions3/1/2019
Added 10 questions2/28/2019
Added 10 questions2/27/2019
Added 5 questions2/26/2019
Added 5 questions2/25/2019
Added page: Shielding for Imaging Systems2/22/2019
Added 5 questions2/22/2019
Added 5 questions2/21/2019
Added 5 questions2/20/2019
Added page: Neutron Detectors: Bubble Detectors2/19/2019
Added 5 questions2/19/2019
Added Page: Neutron Detectors: Activation Foils2/18/2019
Added 5 Questions2/18/2019
Added 5 questions2/13/2019
Added 5 questions2/12/2019
Added 14 questions2/11/2019
Added page: Isotopes, Isobars, and Isotones2/11/2019
Major Update: Vault Shielding NCRP 1512/7/2019
Added 5 questions to Practice Tests2/6/2019
Added 5 questions to Practice Tests2/5/2019
Added 5 questions to Test Prep2/4/2019
Added page: Stopping Power1/25/2019
Added page: Cavity Theory1/24/2019
Added page: Delta Rays1/23/2019
Added page: Dose calculation: Hand Methods1/19/2019
Added page: Hand Calculations: PDD and Tissue Air Ratios1/19/2019
Added page: Hand Calculations: Monitor Units1/9/2019
Added page: Back Scatter Factor12/22/2018
Added page: Tissue Maximum Ratio12/22/2018
Added page: Tissue Phantom Ratio12/22/2018
Added page: Hand Calcualtions: Tissue Air Ratio12/18/2018
Added page: Tissue Compensators12/17/2018
Added page: Hand Calculations: Percent Depth Dose12/14/2018
Added page: Mayneord F Factor12/13/2018
Added page: Total Body Irradiation12/12/2018
Added page: Compensating Filters12/11/2018
Added page: Bolus12/10/2018
Added page: Tissue Lateral Effect12/7/2018
Added page: Hand Calculations: Scatter Factors12/6/2018
Added page: Whole Body Irradiation Effects12/5/2018
Added Page: Determining Margins11/29/2018
Added Page: Total Skin Electron Therapy (TSET)11/22/2018
Added page: Electron Percent Depth Dose11/20/2018
Added page: Bremsstrahlung (braking) radiation11/20/2018
Added page: Mycosis Fungoides11/16/2018
Added page: Optimization Methods11/8/2018
Added page: Cost Functions11/8/2018
Added page: Multi-criteria Optimization11/8/2018
Added page: Direct Machine Parameter Optimization11/6/2018
Added page: Fluence Map Optimization (FMO)11/6/2018
Added page: Dose Distribution Indexes11/6/2018
Added page: DVH Constraints11/6/2018
Added page: Effective Uniform Dose11/6/2018
Added page: Parallel and Serial Organs11/6/2018
Added page: Ray Tracing11/5/2018
Added page: VMAT Optimization: SmartArc11/5/2018
Added Page: Photon Dose Calculation: Algorithmic Methods11/4/2018
Added Section: Klystron Theory of Operation
To page: Magnetrons and Klystrons		10/25/2018
Added Section - Effective Dose
To page: Quantifying Radiation		10/8/2018
Added page: CT-on-Rails10/3/2018
Added Page: Van de Graaff Accelerators10/2/2018
Added page: Kilovoltage X-ray Generation9/27/2018
Added page: CT Dosimetry9/21/2018
Added Section - Contrast Agents
To page: CT Theory of Operation		9/20/2018
Added 9 questions - Radioactive Decay9/19/2018
Added Page: Radioactive Decay9/11/2018
Added 15 questions - Radiobiology8/10/2018
Added Page: Radiobiology8/9/2018
Added Page: CT Artifacts7/24/2018
Added Page: CT Theory of Operation7/24/2018
Added Page: CT History7/24/2018
Added page: Image Quality Metrics7/17/2018
Added page: Luminescent Dosimeters (TLD/OSLD)7/12/2018
Added page: Plastic Scintillation Detectors7/11/2018
Added Page: MOSFET Detectors7/9/2018
Added 10 questions7/7/2018
Added page: Diode Detectors7/7/2018
Added page: Film7/7/2018
Added page: Ion Chambers7/6/2018
Added 10 questions7/6/2018
Added 2 questions7/5/2018
Added 10 questions7/4/2018
Added 22 questsions7/3/2018
Added 27 questions7/2/2018
Added 11 questions7/1/2018
Added 14 questions6/30/2018
Added page: Quantifying Radiation6/29/2018
Added 25 questions6/29/2018
Added 10 questions6/28/2018
Added page: Decay Statistics6/27/2018
Added 4 questions6/27/2018
Added 27 questions6/26/2018
Added 22 questions6/25/2018