Title :
The energy dependence of CaF2:Mn/Teflon thermoluminescent dosimeters
Author :
Kerris, Klaus G. ; Gorbics, Steven G. ; Attix, Frank H.
Author_Institution :
Harry Diamond Lab., Adelphi, MD, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
Thermoluminescent dosimeters (TLDs) which consist of Teflon disks, 0.635 cm in diameter by 0.038 cm thick, containing 5% CaF2:Mn in the form of 20-μm 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 CaF2: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 (Ee≈1.0-1.5 MeV). The energy response of these dosimeters was 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
Keywords :
X-ray effects; calcium compounds; filled polymers; manganese; thermoluminescent dosimeters; 10 to 500 keV; ACCEPT; CaF2:Mn; TLDs; Teflon disks; energy dependence; grains; heavily filtered X-rays; model; moderate energy flash X-ray machines; photon energy response; radiation hardness testing; thermoluminescent dosimeters; transport code; Aluminum; Current measurement; Electronic equipment testing; Electrons; Energy measurement; Equations; Laboratories; Silicon; Solids; Temperature;
Journal_Title :
Nuclear Science, IEEE Transactions on
