Practise Medical Dosimetry Certification Exam (CMD) with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
Medical Dosimetrist Certification Board (MDCB) · Applicant Handbook 2027, January 21–23, 2027 administration; posted September 4, 2026; CMD Test Specifications Matrix derived from the 2023 Job Task Analysis. The assigned workbook label maps to the MDCB examination awarding the Certified Medical Dosimetrist credential.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- MDCB Applicant Handbook
- MDCB Applicant Handbook 2027
- MDCB Announce Dates for the 2027 Exam
- MDCB News
- Why Hire a CMD?
- MDCB Exam Development
- Radiation Oncology Physics: A Handbook for Teachers and Students
- IAEA-TECDOC-1560: Dose Reporting in Ion Beam Therapy
- AAPM Report 166: The Use and QA of Biologically Related Models for Treatment Planning
- AAPM TG-132: Image Registration and Fusion in Radiotherapy
- AAPM TG-71: Monitor Unit Calculations for External Photon and Electron Beams
- AAPM Report 85: Tissue Inhomogeneity Corrections for Megavoltage Photon Beams
- AAPM TG-105: Clinical Implementation of Monte Carlo Treatment Planning
- AAPM TG-275: Effective Physics Plan and Chart Review
- AAPM TG-218: IMRT Measurement-Based Verification QA
- AAPM TG-203: Management of Radiotherapy Patients with Implanted Cardiac Devices
- AAPM TG-290: Respiratory Motion Management for Particle Therapy
- AAPM Medical Physics Practice Guideline 13.a: HDR Brachytherapy, Part A
- IAEA Safety Reports Series 47: Radiation Protection in the Design of Radiotherapy Facilities
- CDC: ALARA Recommendations
- NCI: External Beam Radiation Therapy for Cancer
- TRACO: Introduction to Radiation Oncology, October 15, 2024
- NIST: Water Calorimetry Primary Standards for Absorbed Dose to Water
Medical Dosimetry Certification Exam (CMD)
Start with 20 free questions, then review the explanations and any topics you missed.
A narrow monoenergetic photon beam passes through an attenuator with a constant half-value layer of 4 mm. Neglect scatter. What fraction of the initial intensity remains after 12 mm?
Medical Dosimetry Certification Exam (CMD)
Flashcards
Radiation Physics
Production of X rays
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