Simultaneous macro and micro dosimetry with MOSFETs

Journal Article · Sun Dec 01 04:00:00 EST 1996 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.556855· OSTI ID:443041

Rosenfeld, A B; Kaplan, G I ^[1]; Carolan, M G ^[1]; Allen, B J ^[1]; Maughan, R; Yudelev, M; Kota, C ^[2]; Coderre, J ^[3]

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1. Univ. of Wollongong, New South Wales (Australia). Dept. of Physics
2. Wayne State Univ., Detroit, MI (United States). Harper Hospital
3. Brookhaven National Lab., Upton, NY (United States)

The application of MOSFET dosimeters in complicated mixed radiation fields for measurement of absorbed dose distribution in tissue equivalent phantoms has been studied. The spectra of secondary charged particles have been measured simultaneously with average absorbed doses by the same MOSFET dosimeter. A good correlation has been observed between neutron depth dose distribution in a water phantom obtained using MOSFETs in integral mode and a tissue equivalent (T.E.) ionization chamber. Such MOSFET dosimeters are a promising tool for micro-macro dosimetry in Boron Neutron Capture Therapy (BNCT) and Fast Neutron Therapy (FNT). Paired MOSFETs with one of the dosimeters covered by {sup 10}B have been applied for measuring of average boron dose distribution and microdosimetric spectra due to alpha particles and {sup 7}Li ions throughout a perspex phantom exposed in the epithermal neutron beam at the Brookhaven Medical Research Reactor (BMRR).

• OSTI ID: 443041
• Report Number(s): CONF-960773--
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 6 Vol. 43; ISSN IETNAE; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
BORON 10
DOSIMETRY
MOSFET
NEUTRON THERAPY
PHANTOMS
RADIATION DOSE DISTRIBUTIONS