Chapter Five Flashcards
This chemical functions as the sensing material in a thermoluminescent dosimeter…
Lithium Fluoride
Where should a personal dosimeter be worn?
Collar level outside of apron
Radiation survey instruments should fulfill the following three requirements:
- must be reliable by accurately recording exposure or exposure rate.
- must be durable
- instruments should interface w/ionizing radiation in a manner similar to the way in which human tissue interacts
Where should the personal dosimeter be worn where on a pregnant radiographer?
At abdomen level
When a procedure requires the radiographers hands to be near the primary beam, the equivalent dose to the hands of the individual may be determined through the use of….
The TLD ring badge worn on the hand of the radiation worker
What instrument is used to calibrate radiographic and fluoroscopic xray equipment…
Ionization Chamber with Electrometer
For xray and gamma ray photons with energies from 5 keV to in excess of 40 MeV, the ____________ gives an accurate reading as low as 1 mRem.
OSL Dosimeter
This instrument should be used to locate a lost radioactive source or detect low-level radioactive contamination:
GM Detector
This instrument should be used in an X-ray installation to assess fluoroscopic scatter radiation exposed rate
Ionization chamber with Electrometer
This chemical functions as the sensing material in an OSL
Aluminum Oxide
This interacts with ionizing radiation more like human tissue
Thermoluminescent dosimeter
Occupational dose cannot be determined on day of occurrence with personal dosimeters, with the exception of one
Pocket ionizing chamber
What is the purpose of filters in the film badge
Help determine whether exposure occurred while badge was stationary or moving
Why is personal dosimeters worn at neck level?
Thyroid
Flurries and special procedures produce the _________ occupational dose.
Highest
