Certified Health Physicist V4.0

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Achieve your certification by using  CHPprep Version 4.0 to prepare for Part 1 of the Certified Health Physicist exam. Understanding the concepts behind the questions in this program will also help prepare  for Part II of the Certified Health Physicist exam. Both exams are offered by the  American Board of Health Physics (ABHP).   

CHPprep V4.0 is an interactive self-study program containing 1064 multiple choice questions accompanied by detailed explanations and references.   Select the Free Quiz option to sample the questions.  The materials are organized into five Topics:

Measurements and Instrumentation
Standards and Requirements
Hazards Analysis and Controls
Operations and Procedures
Fundamentals and Education
Study at your own Pace.   Licenses are available in 60 – 365 day options.   Purchase only what you need.
Study When and Where you want.   Use any internet connected smartphone, tablet or laptop to study.   Download and CD versions are available for those who don’t have a reliable internet connection.
Focus your efforts where you need it most.  Create and use practice tests to focus your studies more efficiently.
Measure your progress with the Practice Exam module.    Simulate the exam by taking a timed practice test. Click to Take a Tour of the Practice Test Module
No Risk.   If you don't pass your exam, click to read Datachem's money back or no-charge extra time offer

Proven, trusted study resource. 

For over thirty years, thousands of professionals have relied on Datachem Software programs to help them pass their certification exam.   Most of us lead very busy lives, juggling work responsibilities with professional development, plus family and personal time. Datachem self-study programs allow users to fit their professional development studies into their schedule, rather than adjust their lifestyle and schedules to fit study requirements.   
Our mission is to help professionals pass their certification exams.   In addition to the programs, our team is available to answer questions and troubleshoot problems. We also encourage your feedback so we can improve our products and help others with their purchase decision.

Author:  Dr. Thomas E. Johnson

The content expert and current author for the CHPprep is Dr. Thomas E. Johnson, who has over 25 years of experience in the nuclear industry, specializing in radiation and laser safety. Dr. Johnson is currently an Associate Professor in Health Physics at Colorado State University.

He has conducted multiple CHP and NRRPT review classes over the past 15 years, and currently is responsible for multiple classes in the Colorado State University’s Health Physics program. Over one-third of those passing the CHP exam over the past 5 years have attended preparation courses developed by Dr. Johnson.

Dr. Johnson has a PhD in Health Physics from Purdue University and is the co-author of “Introduction to Health Physics 4th edition” as well as “The Radiological Health Handbook 4th edition” and “The Health Physics Solutions Manual”. He holds Comprehensive Certification (CHP) from the ABHP, is registered with the NRRPT, and is a Certified Laser Safety Officer.


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