Experimental verification of bremsstrahlung production and dosimetry predictions for 15. 5 MeV electrons

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5551312

Sanford, T W.L.; Beutler, D E; Halbleib, J A; Knott, D P

The radiation produced by a 15.5-MeV monoenergetic electron beam incident on optimized and nonoptimized bremsstrahlung targets is characterized using the ITS Monte Carlo code and measurements with equilibrated and non-equilibrated TLD dosimetry. Comparisons between calculations and measurements verify the calculations and demonstrate that the code can be used to predict both bremsstrahlung production and TLD response for radiation fields that are characteristic of those produced by pulsed simulators of gamma rays. At optimum bremsstrahlung production, the predicted total forward radiation fluence detected in equilibrated TLD dosimetry agrees with that measured within the {plus minus}6% uncertainty of the measurement. The absolute comparisons made here provide independent confirmation of the validity of the TLD calibration for photon fields characteristic of gamma-ray simulators. The empirical Martin equation, which is often used to calculate radiation dose from optimized bremsstrahlung targets, is examined, and its range of validity is established from the data presented. 23 refs., 11 figs., 2 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5551312
• Report Number(s): SAND-91-0145C; CONF-910751--12; ON: DE91015339
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
61 RADIATION PROTECTION AND DOSIMETRY
655003 -- Medical Physics-- Dosimetry
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
A CODES
ACCELERATORS
ALKALINE EARTH METAL COMPOUNDS
BEAMS
BREMSSTRAHLUNG
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
COMPUTER CODES
COMPUTERIZED SIMULATION
DOSEMETERS
DOSIMETRY
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LEPTON BEAMS
LINEAR ACCELERATORS
LUMINESCENT DOSEMETERS
MANGANESE
MEASURING INSTRUMENTS
METALS
MONTE CARLO METHOD
PARTICLE BEAMS
RADIATIONS
SIMULATION
TARGETS
THERMOLUMINESCENT DOSEMETERS
TRANSITION ELEMENTS