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Abstract : We investigate the proton energy loss in GaN in an energy range between 0 and 65 MeV. The energy of protons generated by a cyclotron at about 65 MeV is varied by inserting an energyabsorbing medium of varying thickness. The precise modeling of the GaN Schottky diode response as a function of the absorbing medium thickness allows us to demonstrate that the energy absorption loss in GaN precisely follows the Bethe theory. In addition, we can identify the region of the detector contributing to its response to a proton beam, which is of prime importance for proton detector optimization.
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Contributor : jean-yves duboz Connect in order to contact the contributor
Submitted on : Wednesday, November 3, 2021 - 1:20:20 PM
Last modification on : Thursday, August 4, 2022 - 5:05:52 PM


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Jean-Yves Duboz, Julie Zucchi, Eric Frayssinet, Sébastien Chenot, Maxime Hugues, et al.. No title. physica status solidi (b), Wiley, 2021, 258 (8), pp.2100167. ⟨10.1002/pssb.202100167⟩. ⟨hal-03412842⟩



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