Response matrix of an extended Bonner sphere system

We have developed a system of Bonner spheres designed for use around high-energy accelerators. The upper energy limit of the system was extended using a lead radiator, which acts as an energy converter via the (n, xn) reaction. In addition, we use 11C activation as an additional component integrated...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2002, Vol.476 (1), p.26-30
Main Author: Vylet, V
Format: Article
Language:English
Subjects:
Neutron dosimetry
Neutron spectroscopy
Radiation detectors
Radiation protection
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Summary:We have developed a system of Bonner spheres designed for use around high-energy accelerators. The upper energy limit of the system was extended using a lead radiator, which acts as an energy converter via the (n, xn) reaction. In addition, we use 11C activation as an additional component integrated into the system and the spectra unfolding process. In the first version of the system, the lead radiator was present in only one sphere with diameter of 30.48 cm. The object of the present work was to investigate the geometry of the lead radiator and its use in moderators of several different sizes. As a result, we have developed a modular design and calculated the response matrix of the new system.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(01)01383-3