Radiology physics for residents and residency programs

Radiology physics, taught for radiologists.

Short, animated lessons on the physics the ABR Core Exam tests, taught for how you’ll use it in practice. Built by medical physicist Karen Brown for residents and residency programs.

Browse coursesWatch a sample lesson

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One chest shown in the four imaging modalities residents train on: radiography, ultrasound, CT and nuclear medicine.

ONE CHEST · FOUR MODALITIES · THE PHYSICS BEHIND EACH

RAD-AID

Providing radiology education to international residency programs through RAD-AID.

WinSPIRE

Supporting WinSPIRE’s work to expand access to STEM education.

4.7 avg · 8 courses · 663 students

How Sybil teaches

Behind the image

Every image starts with a process worth understanding.

Explore the physics behind the imaging methods you encounter during residency.

See it explained

Follow complex ideas one step at a time.

Animation brings movement and sequence into the explanation, helping you follow how a process works.

Explore nuclear medicine

Take a closer look at Nuclear Medicine Physics.

Explore the course and see the lessons currently available.

Physics, taught for how you’ll use it.

Taught for radiologists

Most physics is taught the way physicists understand it. Sybil teaches the physics that matters to radiologists and puts it in the context of how you’ll use it.

Built for residency schedules

Modules of 10–15 minutes, available 24/7, so complicated material becomes digestible and fits around clinical work.

Simple for programs

Flexible billing and a schedule built around your residents, with live review sessions with Karen. Most programs come to us by referral.

“Fastest way to learn a modality out there.”

RESIDENT, GEISINGER

“Great course, very helpful. The animations contribute substantially to the final product.”

RESIDENT, PENN STATE COLLEGE OF MEDICINE
Sample lesson

See how a module works.

Each module is a short animated lesson of 10–15 minutes, followed by questions. Watch one before you enroll.

Built around the way you study

Watch. Test your understanding. Return to what matters.

Pair clear teaching with tools for active study. Work through lessons, check your understanding, and keep the topics you need to revisit within reach.

Check your understanding

Follow lessons with quizzes that help you identify what needs another look. Review your answers after submission and return to the material as you study.

Practice with Core Physics Practice Questions

Use the question bank to prepare for the ABR Core Exam. Repeated practice gives you another opportunity to work through questions you previously missed.

Find the explanation again

Search video transcripts for a term to find relevant moments. When reviewing a video you have completed, use chapter markers to return to a specific section.

Keep your own study notes

Save notes alongside a video and bookmark moments you want to revisit. Build a personal set of reference points as you work through the course.

Pick up where you left off

Resume a video from your saved position, see your course progress, and review previous quiz attempts as you plan your next study session.

Explore course images

Work with DICOM images provided in course resources. Zoom, adjust the image display, and use measurement tools to examine the teaching material more closely.

Study tools and resources vary by course and access option. See course details for what is included.

A learning path that fits your training.

Residents begin coursework at different times. Explore courses by subject, with on-demand study to support your learning throughout residency.

  1. 01Radiography
  2. 02Mammography
  3. 03Fluoroscopy
  4. 04CT
  5. 05Nuclear Medicine
  6. 06Radiation Biology
  7. 07Ultrasound
  8. 08MRI

Find the subject you need to understand next.

Eight physics courses, a Core Exam question bank, and a bundle of everything — for radiology residents and other medical professionals.

COURSE

Radiography Physics

Understand core radiography physics principles relevant for clinical practice.

★ 4.8 · 166 students
COURSE

Mammography Physics

Understand core mammography physics principles relevant for clinical practice.

★ 4.7 · 62 students
COURSE

Fluoroscopy Physics

Understand core fluoroscopy physics principles relevant for clinical practice.

★ 4.6 · 62 students
COURSE

CT Physics

Understand core CT physics principles relevant for clinical practice.

★ 4.6 · 47 students
COURSE

Nuclear Medicine Physics

Understand core nuclear medicine physics principles relevant for clinical practice.

★ 4.7 · 48 students
COURSE

Radiation Biology, Safety, and Dose

Understand radiation biology, typical radiation doses, and safety practices relevant for clinical practice.

★ 4.8 · 35 students
COURSE

Ultrasound Physics

Understand core ultrasound physics principles relevant for clinical practice.

★ 4.8 · 176 students
COURSE

Basic MRI Physics

Understand core MRI physics principles relevant for clinical practice.

★ 4.7 · 67 students
QUESTION BANK

Core Physics Practice Questions

Preparation for the ABR Core Exam: over 300 exam-style physics questions.

BUNDLE

Radiology Physics Course Bundle

All eight courses plus Core Physics Practice Questions, for radiology residents and other medical professionals preparing for the ABR Core Exam.

View the bundle
Browse all courses
★ 4.8 · 166 students · 14 modules · 3 hours total · 10–15 minutes per module

Radiography Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying Radiography Physics. The course is also a great refresher for physicians who want to brush up on radiographic imaging principles.

What you will learn

  • Principles of image formation
  • Factors that affect image quality
  • Common Artifacts
  • Effective and Safe Use of Equipment.

Included

  • Short, focused topical videos
  • State of the art video animations
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 3 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.7 · 62 students · 12 modules · 3 hours total · 10–15 minutes per module

Mammography Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying Mammography Physics. The course is also a great refresher for physicians who want to brush up on mammographic imaging principles.

What you will learn

  • Principles of image formation
  • Factors that affect image quality
  • Common Artifacts
  • Effective and Safe Use of Equipment.

Included

  • Short, focused topical video lectures
  • State of the art graphics
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 3 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.6 · 62 students · 11 modules · 3 hours total · 10–15 minutes per module

Fluoroscopy Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying Fluoroscopy Physics. The course is also a great refresher for physicians who want to brush up on Fluoroscopy imaging principles.

What you will learn

  • Principles of image formation
  • Factors that affect image quality
  • Common Artifacts
  • Effective and Safe Use of Equipment.

Included

  • Short, focused topical video lectures
  • State of the art graphics
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 3 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.6 · 47 students · 12 modules · 4 hours total · 10–15 minutes per module

CT Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying CT Physics. The course is also a great refresher for physicians who want to brush up on CT imaging principles.

What you will learn

  • Principles of image formation
  • Factors that affect image quality
  • Common Artifacts
  • Effective and Safe Use of Equipment.

Included

  • Short, focused topical video lectures
  • State of the art graphics
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 4 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.7 · 48 students · 27 modules · 6 hours total · 10–15 minutes per module

Nuclear Medicine Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying NM Physics. The course is also a great refresher for physicians who want to brush up on NM imaging principles.

What you will learn

  • Principles of radioactive decay and measurements
  • Factors that affect image quality
  • Common Artifacts.

Included

  • Short, focused topical video lectures
  • State of the art video graphics
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 6 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.8 · 35 students · 12 modules · 3 hours total · 10–15 minutes per module

Radiation Biology, Safety, and Dose

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying Radiation Physics. The course is also a great refresher for physicians who want to brush up on basic principles.

What you will learn

  • Mechanisms of Biological Damage
  • Types of Biological Effects
  • Radiation Protection Principles
  • Radiation Dose Metrics & Units.

Included

  • Short, focused topical video lectures
  • State of the art video graphics
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 3 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.8 · 176 students · 10 modules · 3 hours total · 10–15 minutes per module

Ultrasound Physics

TAUGHT BY KAREN BROWN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying Ultrasound Physics. The course is also a great refresher for physicians who want to brush up on Ultrasound imaging principles.

What you will learn

  • How an Ultrasound transducer works
  • Basic principles of B-mode, M-mode, and Doppler Imaging
  • Factors that affect Image Quality
  • Bioeffects and Safety.

Included

  • Short, focused topical videos
  • State of the art video animations
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 3 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Enroll nowAsk about program access
★ 4.7 · 67 students · 16 modules · 5 hours total · 10–15 minutes per module

Basic MRI Physics

TAUGHT BY KAREN BROWN · SAM EINSTEIN

This course was designed for Radiology residents and other medical professionals such as x-ray technologists, medical students, and physicists studying MRI Physics. The course is also a great refresher for physicians who want to brush up on MRI imaging principles.

What you will learn

  • Principles of image formation
  • Factors that affect image quality
  • Common Artifacts
  • Effective and Safe Use of Equipment.

Included

  • Short, focused topical videos
  • State of the art video animations
  • Access to course instructor
  • On-demand content
  • Engaging questions
  • Clinically relevant examples.

Time and requirements

  • 5 hours total · 10–15 minutes per module
  • A desire to learn
  • A quiet spot or headphones.

Instructors

Karen Brown. Ms. Brown is a Diagnostic Imaging Physicist for Penn State College of Medicine. She is Certified in Radiological Physics by the American Board of Radiology (ABR) and in Health Physics by the American Board of Health Physics (ABHP).

Sam Einstein. Dr. Einstein is an Assistant Professor of Radiology at Penn State College of Medicine in Hershey, Pennsylvania. He is certified in Diagnostic Medical Physics by the American Board of Radiology and as an MR Safety Expert by the American Board of MR Safety.

Enroll nowAsk about program access

Core Physics Practice Questions

Over 300 exam-style physics questions for ABR Core Exam preparation. Practice beyond the lessons, review the questions you missed, and return to them as you study.

Included

  • 300+ exam-style questions
  • Included with the Radiology Physics Course Bundle
  • Available on its own
Enroll nowAsk about program access

Study independently. Or learn with your program.

For individual residents

Choose a single course or the full bundle for your own Core Exam preparation. Study on demand, with email support when you have questions.

Browse courses

For residency programs

Bring Sybil to your program with on-demand coursework and live review sessions with Karen. Flexible billing and a schedule built around your residents — most programs come to us by referral.

Schedule a consult
Meet the teaching team

Led by Karen Brown

Karen Brown is a Diagnostic Imaging Physicist at Penn State College of Medicine, certified by the American Board of Radiology and the American Board of Health Physics, and the founder and lead instructor of Sybil Digital Learning. She works alongside fellow instructors to teach radiology residents the physics they need for the ABR Core Exam and for practice.

  • Diagnostic Imaging Physicist
  • ABR and ABHP certified
  • Founder and Lead Instructor
Meet our instructors

Find your next course.

Explore the subjects you need for your own study, or schedule a consult about bringing Sybil to your residency program.

Browse coursesSchedule a consult