The energy dependence of CaF sub 2 :Mn/Teflon thermoluminescent dosimeters

Conference · Sat Dec 01 04:00:00 EST 1990 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:5769090

Kerris, K G ^[1]; Gorbies, S G ^[2]; Attic, G H ^[3]

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1. Harry Diamond Labs., Adelphi, MD (USA)
2. Berkeley Research Associates, Springfield, VA (USA)
3. Wisconsin Univ., Madison, WI (USA)

Thermoluminescent dosimeters (TLDs) which consist of Teflon discs, 0.635 cm in diameter by 0.038 cm thick, containing 5 percent CaF{sub 2}:Mn in the form of 20 {mu}m grains distributed throughout the volume, are convenient, disposable, single-reading dosimeters which are frequently used in radiation hardness testing. Their photon energy response differs markedly from that of solid CaF{sub 2}:Mn TLDs for photon energies below approximately 500 keV. An accurate model of the energy response is required for the application of such dosimeters to testing at moderate-energy flash x-ray machines (E{sub e} {approx} 1.0--1.5 MeV). Simple Bragg--Gray cavity theory can bound the energy response of such dosimeters, but is inadequate to describe it in detail. The energy response of these dosimeters has been measured using heavily filtered x-rays from a 300-keV constant potential x-ray generator and calculated for photon energies from 10 to 500 keV using the transport code ACCEPT. The results indicate good agreement between measurements and calculations.

• OSTI ID: 5769090
• Report Number(s): CONF-900723--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Journal Volume: 37:6
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CORRELATIONS
CRYSTAL STRUCTURE
DIMENSIONS
DOSEMETERS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY RANGE
FLUORIDES
FLUORINATED ALIPHATIC HYDROCARBONS
FLUORINE COMPOUNDS
FUNCTIONS
GRAIN SIZE
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HARDENING
IONIZING RADIATIONS
KEV RANGE
KEV RANGE 100-1000
LUMINESCENCE
MANGANESE ADDITIONS
MANGANESE ALLOYS
MASSLESS PARTICLES
MATERIALS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MICROSTRUCTURE
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTONS
PHYSICAL RADIATION EFFECTS
PLASTICS
POLY
POLYETHYLENES
POLYTETRAFLUOROETHYLENE
RADIATION EFFECTS
RADIATION HARDENING
RADIATIONS
RESPONSE FUNCTIONS
SIZE
SYNTHETIC MATERIALS
TEFLON
TESTING
THERMOLUMINESCENCE
THICKNESS
X RADIATION