BLOCK 7: IONIZING RADIATION - Unit 12: USAF Personnel Ionizing Radiation Dosimetry Program & Unit 13: Passive Dosimeters (complete)

Question 1

The Dosimetry Program implements the external and internal radiation monitoring policies
established in ____________________________ and ____________________________.

Answer 1

10 CFR 20, Standards for Protection against Radiation
AFMAN 48-148 Ionizing Radiation Protection

Question 2

The ______________________ is designed to monitor, when necessary, occupational radiation exposures. Occupational exposure includes exposures from sources external to the body (e.g., aircraft x-ray machines) and exposures from internally deposited radionuclides (e.g., ingested, inhaled, or absorbed).

Answer 2

THE DOSIMETRY PROGRAM

Question 3

The ________________________ determines who requires radiation exposure monitoring. Below are the annual (peacetime) dose limits.

Answer 3

INSTALLATION RADIATION SAFETY OFFICER (IRSO)

Question 4

The ___________________________ issues dosimeters for each designated monitoring area for the appropriate monitoring period.

Answer 4

USAFSAM Radiation Dosimetry Laboratory

Question 5

The ___________________________ registers individuals into the program according to their installation code.

Answer 5

USAFSAM Radiation Dosimetry Laboratory

Question 6

In addition to identifying who receives monitoring, the ____________ determines the monitoring frequency (monthly or quarterly).

Answer 6

IRSO

Question 7

Any dosimeter, when not being worn, must be stored properly in the designated storage area approved by the __________.

Answer 7

RADIATION SAFETY OFFICER (RSO)

Question 8

Used to measure background radiation accumulated during transit or storage of dosimeters.

Answer 8

AREA CONTROL DOSIMETERS

Question 9

Some of the main responsibilities of BE in conducting the Dosimetry Program:

Answer 9

• Conducts the base dosimetry program
• Collects, issues, and replaces dosimeters
• Determines the need for monitoring
• Determines the type of dosimeter needed and length of monitoring periods (quarterly
  vs. monthly)
• Requests records of individual’s prior occupational radiation dose before registering
  an individual in the Dosimetry Program
• Conducts workplace evaluations and exposure assessments for pregnant employees
• Enrolls pregnant employees in the monthly monitoring schedule, when appropriate
• Approves dosimeter storage locations
• Briefs personnel enrolling in the Dosimetry Program
• Reports and investigates abnormal exposures and overexposures

Question 10

Which of the following is NOT a responsibility of the workplace supervisor?

• Ensure all exposures are ALARA
• Send new personnel to BE/RSO for enrollment
• Perform required bioassays
• Review the exposure reports and addresses possible adverse trends

Answer 10

• Perform required bioassays

This is a worker responsibility.

Question 11

A method of measuring radiation exposure without providing direct readings and without any sort of active functionality, such as electronic displays or alarms.

Answer 11

PASSIVE DOSIMETRY

Question 12

This is the general-purpose dosimeter used to measure radiation exposures to the whole body. The dosimeter is sensitive to beta, gamma, and x-ray radiation. This dosimeter must be worn by all personnel enrolled in the Dosimetry Program regardless of other type(s) of dosimeters worn.

Answer 12

WHOLE BODY DOSIMETER

Question 13

The primary device used to evaluate exposures to the head, neck, and lens of the eye; is always worn outside any shielded protective covering.

Answer 13

COLLAR DOSIMETER

Question 14

____________________are placed in smoke-colored hangers and clipped on the outer clothing in the front part of the body below the shoulders and above the hips.

Answer 14

WHOLE BODY DOSIMETERS

Question 15

___________________are placed in a red-colored hanger and should be hung as close to the thyroid as possible, typically clipped to the collar of the duty uniform.

Answer 15

COLLAR DOSIMETERS

Question 16

The primary device to evaluate exposures to the hand and forearm of an individual.

Answer 16

EXTREMITY DOSIMETER

Question 17

The primary device for determining the neutron dose equivalents to the whole body.

Answer 17

NEUTRON DOSIMETER

Question 18

The neutron dosimeter is distinguished from whole-body badges by the __________-colored hanger.

Answer 18

AMBER-COLORED HANGER

Question 19

If worn with a collar dosimeter, the whole-body dosimeter is always worn _______________ any lead apron.

Answer 19

UNDERNEATH

Question 20

_______________ dosimeters should be considered when personnel are conducting fluoroscopic examinations, portable medical x-ray, or any other operations which may indicate the use of lead aprons.

Answer 20

COLLAR DOSIMETERS

These lead aprons would indicate that the whole body dosimeter may not provide an accurate assessment of dose to the head, neck, or lens of the eye.