Beam Profile Measurement Using the Highly-Oriented Pyrolytic Graphite

The mitigation of heat loading is one of the important issues for beam instrumentation to measure the high-power proton beam. Recently, the highly-oriented pyrolytic graphite (HOPG) material was used for the target probe of the bunch-shape monitor at the front end in the Japan Proton Accelerator Res...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-01, Vol.2687 (7), p.72006
Main Authors: Kitamura, R, Hayashi, N, Hirano, K, Kosaka, S, Miyao, T, Morishita, T, Nemoto, Y
Format: Article
Language:English
Subjects:
Hydrogen ions
Ion beams
Profile measurement
Proton accelerators
Proton beams
Pyrolytic graphite
Test stands
Thermal conductivity
Wire
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Summary:The mitigation of heat loading is one of the important issues for beam instrumentation to measure the high-power proton beam. Recently, the highly-oriented pyrolytic graphite (HOPG) material was used for the target probe of the bunch-shape monitor at the front end in the Japan Proton Accelerator Research Complex (J-PARC). Since the thermal conductivity of the HOPG is high, it is suitable to measure both transverse and longitudinal beam profiles under the condition of high heat loading. As an application of the HOPG, for example, the thin HOPG may be used as a substitutive material of the target wire for the transverse profile monitor such as the wire scanner monitor. The possibility of the HOPG target for both transverse and longitudinal beam profile monitors is discussed from some results of the test experiment using the 3 MeV negative hydrogen ion beam at the test stand.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2687/7/072006