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Title: Accelerator-based photoneutron source for BNCT applications

Abstract

An alternate approach for the potential realization of a clinically-applicable, accelerator-based source of epithermal neutrons for Boron Neutron Capture Therapy (BNCT) is described. The approach uses a compact photoneutron source and a beam filtering/moderation volume for the production of BNCT-applicable neutrons. The photoneutron source consists of a small, heavy water-filled, cylindrical tungsten tank and multiple, inwardly-directed beams of 5-8 MeV electrons. Up to 50 percent (by volume) of the tank may include beryllium. The heavy water serves as both the neutron source and the assembly coolant function. The energetic electrons interacting in the tungsten tank wall generate highly penetrating, multiple source bremsstrahlung radiation. Subsequently, photoneutrons are produced in the tank volume. These resulting photoneutrons are then moderated in a specialized filter/moderator region located around the central tank. The concept also includes a bismuth-lead gamma shield and a lithiated-polyethylene neutron beam delimiter. In support of this approach, this paper will include experimental results using a low-current, benchtop system and an energy-selectable linear electron accelerator. The results will be compared to numerical predictions, and system requirements for clinical-applications are identified.

Authors:
 [1]
  1. Idaho National Engineering Lab., Idaho Falls, ID (United States)
Publication Date:
OSTI Identifier:
199600
Report Number(s):
CONF-941129-
TRN: 95:005652-0090
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Conference
Resource Relation:
Conference: 13. international conference on the application of accelerators in research and industry, Denton, TX (United States), 7-10 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Thirteenth international conference on the application of accelerators in research and industry; Duggan, J.L.; Morgan, I.L. [eds.]; PB: 201 p.
Country of Publication:
United States
Language:
English
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; NEUTRON SOURCES; NEUTRON CAPTURE THERAPY; PHOTONEUTRONS; PARTICLE PRODUCTION; EPITHERMAL NEUTRONS; ELECTRON BEAMS; HEAVY WATER; BREMSSTRAHLUNG

Citation Formats

Jones, J L. Accelerator-based photoneutron source for BNCT applications. United States: N. p., 1994. Web.
Jones, J L. Accelerator-based photoneutron source for BNCT applications. United States.
Jones, J L. Sat . "Accelerator-based photoneutron source for BNCT applications". United States.
@article{osti_199600,
title = {Accelerator-based photoneutron source for BNCT applications},
author = {Jones, J L},
abstractNote = {An alternate approach for the potential realization of a clinically-applicable, accelerator-based source of epithermal neutrons for Boron Neutron Capture Therapy (BNCT) is described. The approach uses a compact photoneutron source and a beam filtering/moderation volume for the production of BNCT-applicable neutrons. The photoneutron source consists of a small, heavy water-filled, cylindrical tungsten tank and multiple, inwardly-directed beams of 5-8 MeV electrons. Up to 50 percent (by volume) of the tank may include beryllium. The heavy water serves as both the neutron source and the assembly coolant function. The energetic electrons interacting in the tungsten tank wall generate highly penetrating, multiple source bremsstrahlung radiation. Subsequently, photoneutrons are produced in the tank volume. These resulting photoneutrons are then moderated in a specialized filter/moderator region located around the central tank. The concept also includes a bismuth-lead gamma shield and a lithiated-polyethylene neutron beam delimiter. In support of this approach, this paper will include experimental results using a low-current, benchtop system and an energy-selectable linear electron accelerator. The results will be compared to numerical predictions, and system requirements for clinical-applications are identified.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {12}
}

Conference:
Other availability
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