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Course Description

PER-300-W - Personal Radiation Detector (PRD) Refresher Course

Course Description    Lat updated 9/13/13

The Personal Radiation Detector (PRD) Refresher web-based training (WBT) course provides primary screeners with a review of material previously presented in the instructor-led PRD courses. The course emphasizes lessons of crucial importance providing information on the employment and use of a PRD during the initial detection of radioactive materials in different scenarios. The course is divided into modules covering basic operational information and skills necessary to use the PRD in a variety of settings, radiation fundamentals, and Federal legal guidance.

Course Objectives
Upon completing this course, participants will be able to:




Detect and locate the presence of radiation and/or radiological material
Identify and distinguish among false alarms; alarms due to background radiation; alarms due to legitimate causes; and alarms due to illicit radiological/nuclear material
Measure the approximate radiation level that generated the alarm upon detecting, locating, and assessing the alarm
Use radiological/nuclear material recognition factors to assist in assessing the situation
Identify the illicit use of radiological/nuclear material and initiate organizational protocols to ensure the health and safety of responders and the public
IDENTIFY the properties of nuclear and radiological material.
LIST the properties of gamma and neutron radiation as they relate to the detection of illicit radioactive material.
EXPLAIN the differences between exposure to the radiation and contamination from the material.
DESCRIBE how the principles of time, distance, and shielding relate to officer safety and nuclear/radiological interdiction.
RECOGNIZE indicators and possible appearance of legitimate and illicit nuclear/radiological material.
RECOGNIZE containers, shielding, and physical appearance of radioactive material.
RECOGNIZE the properties of bulk cargo with naturally occurring radioactive material (NORM).
DESCRIBE the properties of nuclear medicine patients.
RECOGNIZE potential illicit activities from physiological signs and symptoms in suspects.
LIST the effects of the background radiation from the ground and building materials on the detection of illicit radiological material.
Identify the operational aspects, controls, and primary components needed to operate the PRD in the field.
EMPLOY the Alarm Response Guide with a PRD.
APPLY legal considerations when employing a PRD for nuclear/radiological interdiction.
RECEIVE, RESPOND TO, and ASSESS PRD alarms using instrument response, visual and audio indicators, and interview results to categorize alarms.
Upon discovery of the illicit use of radiological/nuclear material, ISOLATE the material and SECURE the scene in a way that ensures the health and safety of the officers and the public.




Target Audience/Discipline
Primary screeners such as Law Enforcement, Emergency Medical Services, Fire Service, Hazardous Materials (HazMat), Public Works, or other skilled personnel that provide immediate support services during prevention and deterrence of radiological/nuclear detection and interdiction operations.

It is the responsibility of the jurisdiction to select course participants.




A certificate will be issued upon successful completion of the course, granting 0.15 continuing education units (CEUs) through the University of Nevada, Las Vegas (UNLV). A letter verifying CEUs can be provided upon request by contacting CTOS at




This course complies with ANSI N42.37-2006, “American National Standard for Training Requirements for Homeland Security Purposes Using Radiation Detector Instrumentation for Interdiction and Prevention.”




Enrollment Information
Access the CTOS Web Campus at Once registered, select the course catalog.





Prerequisites & Other Information:

PER-243 or PER-243-1


Applicants should be law enforcement and public safety officers who have been issued a PRD and whose duties place them in locations where illicit  diological/nuclear material may be hidden, transported, assembled, and/or employed by terrorist elements.


No tuition is charged.

Course Specifics

Hours: 1.50
Provider: Counterterrorism Operations Support (CTOS)
Disciplines: Emergency Medical Service
Fire Service
Law Enforcement
Public Works

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Available Classes

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