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ESR/alanine dosimetry of high-energy electrons in radiotherapy.
Appl. Radiat. Isot. 40, 993-996 (1989)
Dosimetry with detectors of organic material and electron spin resonance (ESR) spectroscopy for readout has been developed metrologically at GSF for high-level photon radiation. The tissue-equivalent probes also appear appropriate for therapy-level dosimetry. Here, results of dose measurements are reported which were performed in a water phantom using high-energy electrons as produced by a linear accelerator. Firstly, the dose range of the ESR/alanine dosimetry system had to be extended down to around 1 Gy. On this basis the response of the alanine dosimeters was determined for electrons at different therapeutic dose levels from less than 0.5 Gy to 10 Gy. Finally depth-dose measurements were carried out for electrons with initial energies up to 21 MeV. Comparisons between ESR/alanine and ion chamber dosimetry were made performing depth-dose measurements in a water phantom to examine the agreement of both methods under field conditions.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0969-8043
e-ISSN
1872-9800
Journal
Applied Radiation and Isotopes
Quellenangaben
Volume: 40,
Issue: 10-12,
Pages: 993-996
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Departments & Institutes