Extension of energy acceptance of Bragg curve counter at the high-energy end

We have developed an energy-extension method of a Bragg curve counter (BCC) at the high-energy end for the measurements of double-differential cross-sections (DDXs) of fragment productions induced by tens of MeV protons. In this method, we estimate the incident energies of the fragments penetrating...

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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, 2008-07, Vol.592 (1), p.73-79
Main Authors: Hagiwara, M., Sanami, T., Oishi, T., Baba, M., Takada, M.
Format: Article
Language:English
Subjects:
Bragg curve counter
Double-differential cross-section
Energy extension
Energy loss
Tens of MeV proton
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Summary:We have developed an energy-extension method of a Bragg curve counter (BCC) at the high-energy end for the measurements of double-differential cross-sections (DDXs) of fragment productions induced by tens of MeV protons. In this method, we estimate the incident energies of the fragments penetrating a BCC on the basis of the energy loss and atomic number ( Z). We applied this method to the DDX measurements of the natC(p, Li) and natC(p, Be) reactions induced by 70 MeV protons. The validity of this method has been confirmed by comparing the DDXs of beryllium with theoretical predictions of the PHITS code and the two-body kinematics. This method improves the energy acceptance of the BCC for light fragments twice as wide as that of a conventional method without remodeling of the BCC and any loss of the original advantages.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2008.03.108