Experimental verification of dosimetry predictions of bremsstrahlung attenuation as a function of material and electron energy

Conference · Wed Dec 01 00:00:00 EST 1993 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.273524· OSTI ID:6836951

Sanford, T W.L.; Halbleib, J A; Beutler, D E ^[1]; Knott, D P ^[2]

---

1. Sandia National Labs., Albuquerque, NM (United States)
2. Technical Support Corp., Albuquerque, NM (United States)

Dose attenuation with depth in an absorber of on-axis bremsstrahlung generated from an electron target is measured and shown to agree within [+-]9% with Monte Carlo predictions as a function of absorber material (Al,Fe,Pb) and incident electron beam energy (5.5-25.1 MeV). For this on-axis bremsstrahlung, 1 to 5 g/cm[sup 2] of upstream and 0.2 to 1 g/cm[sup 2] of downstream Al buffer is sufficient to provide electron equilibration for CaF[sub 2]:Mn thermoluminescent dosimeters (TI-Ds) over the measured energy range of 5.5 to 25.1 MeV, respectively. Once effective'' equilibration has been established, an expression of the form DA/Q = C[sub 1]V[sup C[sub 2]]e[sup [minus]C[sub 3]V[sup C[sub 4]][lambda]], can be used to predict the dose-area (DA) product per absorbed beam charge (Q) at a given incident beam energy (V) in TLDs as a function of depth ([lambda]) in absorbers, within a fixed solid angle centered about the beam axis. This expression is quantified for the measurements presented here.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6836951
• Report Number(s): CONF-930704-; CODEN: IETNAE
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 40:6Pt1; Conference: NSREC '93: international nuclear and space radiation effects conference, Snowbird, UT (United States), 19-23 Jul 1993; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM
PHOTON TRANSPORT
BREMSSTRAHLUNG
ATTENUATION
IRON
LEAD
A CODES
EXPERIMENTAL DATA
RADIATION DOSES
COMPUTER CODES
DATA
DOSES
ELECTROMAGNETIC RADIATION
ELEMENTS
INFORMATION
METALS
NEUTRAL-PARTICLE TRANSPORT
NUMERICAL DATA
RADIATION TRANSPORT
RADIATIONS
TRANSITION ELEMENTS
663620* - Physics of Radiations Other Than Neutrons- (1992-)