Methods Of Detecting Ionizing Radiation

Question 1

What are the three counting regions?

Answer 1

• Ion Chamber Region
• Proportional Region
• Geiger-Muller region

Question 2

What are examples of detectors associated with the ion chamber?

Answer 2

IM-231/PD

Question 3

What is an example of a detector associated with the proportional region?

Answer 3

AN/PDR 70

Question 4

What is an example of a detector associated with the Geiger-Mueller Region?

Answer 4

IM-271 w/ DT-304 Probe & MFR w/ DT-681 electronics package and a DT-304 probe

Question 5

What are the two RADIACS used during NNPP Frisking operations?

Answer 5

IM-271 w/ DT-304 Probe and the MFR w/ DT-685 Electronics package and DT-304 Probe.

Question 6

What detectors only survey contamination?

Answer 6

• IM-271 with the DT-304 Probe
• MFR w/ DT-685 electronic package and DT-304 Probe
• MFR w/ the DT-681 Probe

Question 7

What Detector is used for Alpha contamination?

Answer 7

• MFR w/ DT-681 Probe

Question 8

What detector is used for beta and gamma contamination?

Answer 8

• IM-271 w/ DT-304 probe
• MFR w/ DT-685 electronic package and DT-304 Probe.

Question 9

What Detectors are used for beta and gamma exposure?

Answer 9

• MFR w/ DT-680 probe
• IM-231

Question 10

What detector is used for gamma exposure?

Answer 10

MFR (also known as IM-265) with no probe

Question 11

What detector is used for neturon exposure?

Answer 11

AN/PDR-70

Question 12

What is a type 1 error?

Answer 12

When the RADIAC detects activity that is not present (False positive)

Question 13

What is a type II error?

Answer 13

When the RADIAC fails to detect activity that is present.

Question 14

What are the required checks for RADIACs prior to use?

Answer 14

• Physical integrity check
• Calibration Check
• Battery Check
• Source Check