Charge Collection Characteristics of A Super-Thin Diamond Membrane Detector Measured With High-Energy Heavy Ions

N. Iwamoto 1 T. Makino 1 W. Kada 2 N. Skukan 3 M. Pomorski 4 V. Grilj 3 M. Jaksic 3 S. Onoda 1 T. Ohshima 1 T. Kamiya 1
1 Japan Atomic Energy Agency
2 Department of Computer Science [Gunma]
3 Ruder Bosković Institute
4 LCD-LIST - Laboratoire Capteurs Diamant
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : A transmission particle detector based on a super-thin diamond membrane film which can also be used simultaneously as a vacuum window for ion beam extraction has been developed. Charge collection characteristics of a 6.8 μm-thick diamond membrane detector for high-energy heavy ions including 75 MeV Ne, 150 MeV Ar, 322 MeV Kr, and 454 MeV Xe have been investigated for the first time. Charge collection signals under single particle flux from the thin part are stable and are well distinguishable from background signals. This behavior suggests that the diamond membrane detector could be used for counting single ions. On the other hand, charge collection efficiency is found to decrease with increasing of charge generated in the diamond membrane detector. This suggests that the pulse height defect, which has been previously reported for Si and SiC detectors, also occurs in the diamond membrane detector.
Keywords : Charge collection efficiency diamond high-energy heavy ion membrane transmission detector
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Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-01833975
Contributor : Marie-France Robbe <>
Submitted on : Tuesday, July 10, 2018 - 10:03:56 AM
Last modification on : Monday, May 13, 2019 - 11:15:47 AM

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N. Iwamoto, T. Makino, W. Kada, N. Skukan, M. Pomorski, et al.. Charge Collection Characteristics of A Super-Thin Diamond Membrane Detector Measured With High-Energy Heavy Ions. IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2014, 61 (6), pp.3732 - 3738. ⟨10.1109/TNS.2014.2360937⟩. ⟨cea-01833975⟩

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