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Applied Health Physics I – Fundamental Concepts and Detector Technologies

First of the three required self-paced training modules as part of the new blended Applied Health Physics course


ORAU's Professional Training Programs (PTP) is now offering a new way to experience the traditional five-week Applied Health Physics course that is offered at our training facilities in Oak Ridge, Tennessee. We are now offering a blended course that contains both online and in-class training. The lecture materials will be delivered online via self-paced modules and webcasts. The laboratory exercises will be delivered in-class at the ORAU PTP training facility in Oak Ridge, Tennessee, where we will employ safe distancing, smaller lab groups, and disinfection protocols.

This option greatly reduces the on-site presence of the participant and the costs of travel, lodging, and per diem, while presenting all of the great instructional topics and content you have come to expect in the five-week course. The American Academy of Health Physics grants 40 Continuing Education Credits for completion of this course.

Course description

The Applied Health Physics I – Fundamental Concepts and Detector Technologies online training course is self-paced and can be completed as time allows. The course includes 21 modules and two webcasts. In order to complete the course, you will be required to pass an exam. A passing score is 70 out of 100. You will have three attempts to successfully complete the exam. Upon successful completion of the exam, a course certificate of completion will be provided. Course materials are available on the ORAU PTP Learning Management System (LMS).

PTP instructors will be available via email, phone, or Microsoft Teams to answer questions and provide assistance when needed.

This course can be completed independently or as part of the new blended Applied Health Physics course. If you are planning to complete the full Applied Health Physics five-week course curriculum, this course is the first of the three required self-paced training modules found in our online training catalog. The full requirements of the Applied Health Physics five-week course curriculum (and required order of completion) are listed below:

  1. Applied Health Physics I – Fundamental Concepts and Detector Technologies
  2. Operational Health Physics I – Instrumentation Calibration, Preparation, and Use, Radiation in Industry, and External Dosimetry
  3. Operational Health Physics II – Air Sampling, Internal Dosimetry, Neutrons, Decommissioning, Waste, Non-Ionizing, and Transportation)
  4. Applied Health Physics – Laboratory Exercises I
  5. Applied Health Physics – Laboratory Exercises II

Target audience

Any person needing training in health physics and radiation protection should complete this course. Attendees should have some training in mathematics, including algebra, and have experience using a calculator with scientific functions.


$1,999 – Tuition includes access to the course materials via the ORAU Learning Management System (LMS).

Register now


If you have additional questions about this course, please contact the Registrar.

Impact Areas

Registration Information

These are asynchronous (self-paced) online courses. The training staff recommends that you complete the training within six months of enrollment. Once registration is complete, you will receive an email confirming that your registration has been received. Once your payment has been confirmed, you will receive an email containing your user name and temporary password if this is the first time you have registered for an online course. If you have registered before, you will receive notification that the course is now available.

Each course contains a series of modules/exercises to be completed. When all modules are complete, you will be granted access to the exam. A passing score is 70 out of 100. You will have three attempts to successfully complete the exam. Upon successful completion of the exam, a course certificate of completion will be provided.

Please read the following carefully in its entirety. You must accept these terms and conditions in order to be successfully enrolled in the course. By accepting these terms and conditions, you are legally obligated to act in accordance with this agreement.

Restricted Materials Use Agreement

By registering for this course offered by ORAU's Professional Training Programs (PTP), I understand that I will be provided with PTP-developed course materials. In exchange for receiving these materials, I agree and understand that PTP’s course materials (both electronic or hardcopy) are provided for use by the registered participant only.

Duplication and/or distribution of the course materials, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, is strictly prohibited without the prior written permission of ORAU. The participant may retain and use the course materials for personal reference in perpetuity. Publications and other copyrighted materials provided during the course may be subject to additional restrictions as noted within these documents.

Payment Policy

Payment in full is required in advance.

Cancellation and Refund Policy

Once access to the course material has been granted via the Learning Management System, no cancellations will be accepted and no refunds will be issued.

Links to Third-Party Websites

PTP's Online Training may include links to third-party websites that are controlled and maintained by other organizations. Any link to third-party websites is not an endorsement of said websites, and ORAU is not responsible for the content or availability of any such sites.


Sessions that contain webinars will be recorded.

ORAU Event Attendee Code of Conduct

This ORAU Event Attendee Code of Conduct (“Code of Conduct”) applies at all ORAU live and virtual meetings, conferences, forums, and meeting-related events, including those sponsored by ORAU or in conjunction with other organizations.

Please read the following Code of Conduct linked below in its entirety.

This Code of Conduct may be revised at any time by ORAU and the terms are non-negotiable.

Your registration for or attendance at any ORAU Event, whether it is held in-person or virtually, indicates your agreement to abide by this Code of Conduct.

ORAU Event Attendee Code of Conduct

Ordering Terms and Conditions

The terms and conditions agreed to herein comprise the entirety of the agreement between the customer and ORAU absent any other ORAU commercial contract.

  • Module 1: Introduction to Radiation and Radioactivity
  • Module 2: Nuclear Stability and the Chart of the Nuclides
  • Module 3: Radiation and Radioactivity
  • Module 4: Gamma Rays, Conversion Electrons, Characteristic X-rays, and Auger Electrons
  • Module 5: Decay Rates: Activity and the Activity Equation
  • Module 6: Decay Rates: Half-life and Specific Activity
  • Module 7: Interactions of Charged Particles in Matter
  • Module 8: Interactions of Photons in Matter
  • Module 9: Dosimetric Quantities: Exposure and the Inverse Square Law
  • Module 10: Dosimetric Quantities: Absorbed Dose
  • Module 11: Dosimetric Quantities: Dose Equivalent
  • Module 12: Point, Line, Plane and Volume Sources (Webcast)
  • Module 13: Overview of Radiation Detectors
  • Module 14: Gas Filled Detectors
  • Module 15: Geiger-Müller (GM) Detectors
  • Module 16: Ionization Chambers
  • Module 17: Proportional Counters
  • Module 18: Solid Scintillation Detectors
  • Module 19: Liquid Scintillation Counting (Webcast)
  • Module 20: Semiconductor Detectors
  • Module 21: Introduction to Survey Meters
  • Module 22: Survey Meters for Exposure Rate
  • Module 23: Contamination Survey Detectors

Contact us

For more information about ORAU's Professional Training Programs, contact:

ORAU Professional Training Programs 
P.O. Box 117, MS-11
Oak Ridge, TN 37831-0117
Phone: (865) 576-3576
Fax: (865) 241-9152

ORAU Professional Training Programs flyer

View the PTP course flyer (.PDF, 1.28 MB)