QTP4B051-13 — Calibration and Operation of Radiation Detection Equipment

QTP4B051-13 governs calibration and operation of radiation detection equipment for Air Force specialty code 4B051.

Search QTP4B051-13

  • Publication number: QTP4B051-13
  • Title: Calibration and Operation of Radiation Detection Equipment
  • Date: 2024-03-07

View QTP4B051-13 on armypubs.army.mil


It covers ion chamber, gamma spectrometry, Geiger-Mueller, EPD, high volume air sampler, calculations, and radioactive-material shipment surveys. Task steps, review questions, performance checklists, and answers address equipment checks, radiation measurements, sampling, and transport preparation.

Topics covered

  • Ion chamber survey meters
  • Gamma spectrometry
  • Geiger-Mueller meters
  • Electronic personal dosimeters
  • High volume air sampling
  • Ionizing radiation calculations
  • Radioactive material shipment surveys

Questions and answers

How long should an ADM-300 rate reading stabilize before it is recorded?

Allow the rate reading to stabilize for 20 seconds. (paragraph 4)

How close should an alpha probe be to the surface being monitored?

Recall that alpha radiation travels only centimeters. Therefore, the probe will need to be as close as possible to the source for an accurate reading, approximately 1/8th to 1/16th of an inch away from the surface being monitored.

What precaution applies when the ADM-300 beta window cover is open?

When monitoring for beta radiation, use extreme care to protect the beta window when the beta window cover is open as sharp objects can rupture the beta window. (paragraph 9)

What sample volume is recommended when dust loading is a concern during RADeCO sampling?

Sample volume collected is dependant on local conditions. If dust loading is a concern at your base, or sampling following a radiation dispersal device, 100ft3 should be collected, if not, 1000ft3 is the recommended sample volume. (paragraph 5)

What must be done to a radioactive-material package before comparing exterior contamination results to regulatory limits?

Continuing to wear appropriate PPE and perform a 300-cm2 swipe of the exterior surface of the package and compare results to regulatory limits? (paragraph 9)

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