Volume 4b Unit 2 Flashcards
Dosimeters are required to be worn by any workers occupationally exposed to ionizing radiation, especially those who are likely to exceed an external dose of 1 millisievert (mSv), equal to 100 millirem (mrem), or _______
2 percent of the ALI
Who is typically given the responsibility of managing the United States Air Force (USAF) Personnel Dosimetry Program?
Bioenvironmental engineering (BE) journeyman
Who is responsible for enrolling personnel into the dosimetry program and determining the type of external monitoring required?
Bioenvironmental engineering
The manager of the dosimetry program interacts with which of the following to request priority processing for dosimeters issued to pregnant workers or used in planning special exposures?
USAF Radiation Dosimetry Laboratory (RDL)
Who interviews the workplace supervisor and enrolled individual when investigating an abnormal exposure to determine its cause?
Installation radiation safety officer
Which dosimeter should be used to evaluate exposures to the head and lens of the eye?
Collar
Which type of dosimeter should be issued to individuals who perform fluoroscopic examinations or operate portable medical X-ray equipment?
Collar
How often do electronic personal dosimeters (EPD) used for first responder or readiness purposes require calibration?
Annually
What must you do to enroll an individual in the dosimetry program before briefing the dosimeter wearer, completing the Radiation Dosimetry Laboratory (RDL) Listing 1523, and issuing the dosimeter?
Establish the exposure history
Emergency response personnel should place the electronic portable dosimeter (EPD) Mk2 on their _____
Front torso area, outside of any personal protective equipment (PPE)
Which form or listing is used to add an individual to the base radiation dosimetry program?
Radiation Dosimetry Laboratory (RDL) Listing 1523
To which agency are females responsible to report upon confirmation of pregnancy?
Public health (PH)
What is the first step you must do to disenroll an individual from the dosimetry program?
Determine if the individual wore the dosimeter during the monitoring period
Once dosimeters are collected after the monitoring period and disassembled, the two things that must be compared to account for all issued dosimeters include the thermoluminescent dosimeter (TLD) number and the _____
Radiation Dosimetry Laboratory (RDL) Listing 1523
On which of the following forms/listings is the annual report of individual occupational exposure to ionizing radiation listed?
United States Air Force School of Aerospace Medicine (USAFSAM) Form 1527–1, Annual Report of Individual Occupational Exposure to Ionizing Radiation
Who sets the value for the investigation action level as part of the as low as reasonably achievable (ALARA) program?
Installation radiation safety officer (IRSO)
When using the ADM-300 XP–100, hold the probe _____
Vertical to the surface and use a slow and steady sweeping motion
What should the installation radiation safety officer (IRSO) develop for each dose equivalent category of the Radiation Dosimetry Laboratory (RDL) Listing 1499?
Investigation action levels
A common problem you will likely encounter when employing a scintillation instrument that uses a thin window is the _____
Susceptibility to light leaks caused by small holes in the window
Which radiation measuring device is an example of a gamma-spectrometer?
SAM 940
What type of testing do you conduct on unsealed radiation sources?
Swipe
The most effective means of taking a swipe sample is to ______
Add a few drops of deionized water (DI) to dampen it, increasing its efficiency up to 90%
When swipe testing a radiological source, what is the first step after you have prepared and checked the field blank (field paper)?
In a slow back and forth “S” motion applying moderate pressure, swipe an area of 100 square centimeters (cm2)
What is the total surface area covered, in square centimeters (cm2), during a swipe sample of a sealed radiological source?
100 cm2
When monitoring a radioactive material (RAM) shipment for external levels of radiation, at what distance from the surface of the package are readings taken?
10 cm
What type of survey instrument do you use to monitor external radiation levels for packages that contain radioactive material (RAM)?
Portable ion chamber
There is greater concern for public exposure to radiation from medical X-ray operations as compared to industrial X-ray operations because ______
Of the proximity of patients and visitors in the medical X-ray environment
The bioenvironmental engineering flight’s (BE) role in the ionizing radiation quality assurance program is to ____
Perform scatter surveys on medical X-ray units to ensure all personnel are not exposed to unnecessary radiation
The easiest and most accurate method you can use to measure ionizing radiation produced by medical X-ray machines is using ______
Thermoluminscent dosimeters (TLD)
When conducting medical X-ray machine scatter radiation surveys, you recreate the scatter effect of the radiation by ____
Placing a one gallon-plastic container filled with water in line with the beam
Once your radiation storage and use area measurements have been collected in any hour, what criteria in millirem (mrem) are they compared to?
2 mrem
What should be your initial action if you suspect that a dosimeter received an abnormal exposure?
Send the suspect Dosimeter for processing
When investigating an abnormal exposure to ionizing radiation, which action takes place during the interview the worker step?
Exploring potential causes for the exposure
Within how many days after being notified of a potential overexposure to ionizing radiation must a written report be submitted to the Radioanalytical Laboratory?
7 calendar days
The scenario that would be a proper time to use the stay time calculation is determining the _______
Amount of time an Airman can work in a BROKEN ARROW site
