BJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
British Journal of Radiology (1989) 62, 989-994
© 1989 British Institute of Radiology
doi:
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Slabbert, J. P.
Right arrow Articles by Hough, J. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Slabbert, J. P.
Right arrow Articles by Hough, J. H.

The British Journal of Radiology, Vol 62, Issue 743 989-994, Copyright © 1989 by British Institute of Radiology

ARTICLES

A quality assessment of the effects of a hydrogenous filter on a p(66)Be(40) neutron beam

JP Slabbert, PJ Binns, HL Jones and JH Hough
National Accelerator Centre, Faure, South Africa.

Recent measurements in a p(62)Be(36) neutron therapy beam have shown that the quality of the in-phantom beam changes with depth. This variation can be ascribed to the presence of a relatively large low-energy neutron component emanating from the neutron source. As part of the pre-clinical calibration programme at a newly commissioned neutron therapy facility, radiobiological and microdosimetric observations were made to determine the magnitude of this effect on a p(66)Be(40) beam and to evaluate the hardening effect of a hydrogenous filter. The reported data identify a correlation between the two assays and quantify a linear relationship between y* and filter thicknesses less than or equal to 6 cm. Using the data obtained in the study, a filter thickness was selected to comply with clinical requirements. By employing lineal energy spectra, it is demonstrated that subtle changes in beam quality may be quantified in a reproducible manner without resorting to time-consuming radiobiological studies.


This article has been cited by other articles:


Home page
 Radiat Prot DosimetryHome page
J-E. Grindborg, J. E. Lillhok, L. Lindborg, I. Gudowska, J. Soderberg, G. Alm Carlsson, and H. Nikjoo
NANODOSIMETRIC MEASUREMENTS AND CALCULATIONS IN A NEUTRON THERAPY BEAM
Radiat Prot Dosimetry, August 17, 2007; (2007) ncm093v1.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING  ALL BIR JOURNALS 
Copyright © 1989 by the British Institute of Radiology.