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Reference dosimetry at the neutron capture therapy facility at Studsvik

Munck af Rosenschöld, Per LU ; Giusti, V; Ceberg, Crister LU ; Capala, J; Skold, K and Persson, Bertil R LU (2003) In Medical Physics 30(7). p.1569-1579
Abstract
The purpose of this publication was to present and evaluate the methods for reference dosimetry in the epithermal neutron beam at the neutron capture therapy facility at Studsvik. Measurements were performed in a PMMA phantom and in air using ionization chambers and activation probes in order to calibrate the epithermal neutron beam. Appropriate beam-dependant calibration factors were determined using Monte Carlo methods for the detectors used in the present publication. Using the presented methodology, the. photon, neutron and total absorbed dose to PMMA was determined with an estimated uncertainty of +/-5.0%, +/-25%, and +/-5.5% (2 SD), respectively. The uncertainty of the determination of the photon absorbed dose was comparable to the... (More)
The purpose of this publication was to present and evaluate the methods for reference dosimetry in the epithermal neutron beam at the neutron capture therapy facility at Studsvik. Measurements were performed in a PMMA phantom and in air using ionization chambers and activation probes in order to calibrate the epithermal neutron beam. Appropriate beam-dependant calibration factors were determined using Monte Carlo methods for the detectors used in the present publication. Using the presented methodology, the. photon, neutron and total absorbed dose to PMMA was determined with an estimated uncertainty of +/-5.0%, +/-25%, and +/-5.5% (2 SD), respectively. The uncertainty of the determination of the photon absorbed dose was comparable to the case in conventional radiotherapy, while the uncertainty of the neutron absorbed dose is much higher using the present methods. The thermal neutron group fluence, i.e., the neutron fluence in the energy interval 0-0.414 eV, was determined with an estimated uncertainty of +/-2.8% (2 SD), which is acceptable for dosimetry in epithermal neutron beams. (C) 2003 American Association of Physicists in Medicine. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
dosimetry, mixed beam, BNCT
in
Medical Physics
volume
30
issue
7
pages
1569 - 1579
publisher
American Association of Physicists in Medicine
external identifiers
  • pmid:12906175
  • wos:000184209200005
  • scopus:0038372105
ISSN
0094-2405
DOI
10.1118/1.1580484
language
English
LU publication?
yes
id
db63d4f5-165c-4741-a188-697237018d16 (old id 305200)
date added to LUP
2007-08-30 11:14:29
date last changed
2018-10-03 11:54:12
@article{db63d4f5-165c-4741-a188-697237018d16,
  abstract     = {The purpose of this publication was to present and evaluate the methods for reference dosimetry in the epithermal neutron beam at the neutron capture therapy facility at Studsvik. Measurements were performed in a PMMA phantom and in air using ionization chambers and activation probes in order to calibrate the epithermal neutron beam. Appropriate beam-dependant calibration factors were determined using Monte Carlo methods for the detectors used in the present publication. Using the presented methodology, the. photon, neutron and total absorbed dose to PMMA was determined with an estimated uncertainty of +/-5.0%, +/-25%, and +/-5.5% (2 SD), respectively. The uncertainty of the determination of the photon absorbed dose was comparable to the case in conventional radiotherapy, while the uncertainty of the neutron absorbed dose is much higher using the present methods. The thermal neutron group fluence, i.e., the neutron fluence in the energy interval 0-0.414 eV, was determined with an estimated uncertainty of +/-2.8% (2 SD), which is acceptable for dosimetry in epithermal neutron beams. (C) 2003 American Association of Physicists in Medicine.},
  author       = {Munck af Rosenschöld, Per and Giusti, V and Ceberg, Crister and Capala, J and Skold, K and Persson, Bertil R},
  issn         = {0094-2405},
  keyword      = {dosimetry,mixed beam,BNCT},
  language     = {eng},
  number       = {7},
  pages        = {1569--1579},
  publisher    = {American Association of Physicists in Medicine},
  series       = {Medical Physics},
  title        = {Reference dosimetry at the neutron capture therapy facility at Studsvik},
  url          = {http://dx.doi.org/10.1118/1.1580484},
  volume       = {30},
  year         = {2003},
}