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초강력 레이저 과학 연구단
초강력 레이저과학 연구단
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Experimental evaluation of the response of micro-channel plate detector to ions with 10s of MeV energies

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Title
Experimental evaluation of the response of micro-channel plate detector to ions with 10s of MeV energies
Author(s)
Tae Won Jeong; P.K. Singh; Scullion C.; Ahmed H.; K.F. Kakolee; Hadjisolomou P.; Alejo A.; Kar S.; Borghesi M.; S. Ter-Avetisyan
Publication Date
2016-08
Journal
REVIEW OF SCIENTIFIC INSTRUMENTS, v.87, no.8, pp.083301 -
Publisher
AMER INST PHYSICS
Abstract
The absolute calibration of a microchannel plate (MCP) assembly using a Thomson spectrometer for laser-driven ion beams is described. In order to obtain the response of the whole detection system to the particles' impact, a slotted solid state nuclear track detector (CR-39) was installed in front of the MCP to record the ions simultaneously on both detectors. The response of the MCP (counts/particles) was measured for 5-58 MeV carbon ions and for protons in the energy range 2-17.3 MeV. The response of the MCP detector is non-trivial when the stopping range of particles becomes larger than the thickness of the detector. Protons with energies E 10 MeV are energetic enough that they can pass through the MCP detector. Quantitative analysis of the pits formed in CR-39 and the signal generated in the MCP allowed to determine the MCP response to particles in this energy range. Moreover, a theoretical model allows to predict the response of MCP at even higher proton energies. This suggests that in this regime the MCP response is a slowly decreasing function of energy, consistently with the decrease of the deposited energy. These calibration data will enable particle spectra to be obtained in absolute terms over a broad energy range. © 2016 Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/2753
ISSN
0034-6748
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
Files in This Item:
Sargis_Experimental evalution(Review of Scientific Instruments).pdfDownload

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