Encrypted | Login

AAPM has contracted with NCRP to provide each AAPM Member in good standing access and download privileges of electronically available NCRP reports, commentaries and statements. This report was prepared by the National Council on Radiation Protection and Measurements (NCRP). The Council strives to provide accurate, complete and useful information in its reports. However, neither the NCRP, the members of NCRP, other persons contributing to or assisting in the preparation of this report, nor any person acting on the behalf of any of these parties (a) makes any warranty or representation, express or implied, with respect to the accuracy, completeness or usefulness of the information contained in this report, or that the use of any information, method or process disclosed in this report may not infringe on privately owned rights; or (b) assumes any liability with respect to the use of, or for damages resulting from the use of, any information, method or process disclosed in this report.

Report No. 079 - Neutron Contamination from Medical Electron Accelerators (1984) This is a members only link.

Price: $40 PDF (AAPM Members FREE)
Category: Reports

This report addresses a problem encountered with the use of electron accelerators in radiation therapy. The potential exists for the production of neutrons, in several different ways, when equipment used to generate electrons operates at energies above 10 MeV. The sources of these neutrons and their relative contributions are described. A further section is devoted to the potential hazard from the neutrons which are produced and which represent a contribution to the total radiation dose to the patient. This contribution is not normally included in the calculation of dose delivered to the treatment volume, as performed by the therapist and the medical physicist. The question of whether or not this additional dose constitutes an unacceptable risk to the patient is discussed. The Report addresses the hazard to operating personnel from neutrons produced outside the patient's treatment volume. Neutron measurement methods are also addressed. The Report concludes with a survey of the published literature relevant to the subject.
Scientific Committee:
Richard C. McCall, Chairman

Peter R. Almond
John A. Devanney
Everett G. Fuller
George R. Holeman
Lawrence H. Lanzl
Harry Ing, Advisor
William P. Swanson, Consultant
I Disagree
I Agree

Show list of all NCRP documents »