Performance evaluation of silicon drift detectors for a precision X-ray spectroscopy of kaonic helium-3

T. Hashimoto, H. Bhang, M. Cargnelli, Seonho Choi, C. Curceanu, S. Enomoto, H. Fujioka, Y. Fujiwara, C. Guaraldo, R. S. Hayano, T. Hiraiwa, M. Iio, K. Inoue, T. Ishikawa, S. Ishimoto, T. Ishiwatari, K. Itahashi, M. Iwasaki, H. Kou, P. KienleJ. Marton, Y. Matsuda, H. Noumi, H. Ohnishi, S. Okada, H. Outa, A. Romero Vidal, F. Sakuma, M. Sato, M. Sekimoto, H. Shi, D. Sirghi, F. Sirghi, T. Suzuki, K. Tanida, H. Tatsuno, M. Tokuda, D. Tomono, A. Toyoda, K. Tsukada, O. Vazquez Doce, E. Widmann, B. Wünschek, T. Yamazaki, J. Zmeskal

Research output: Contribution to journalConference articlepeer-review

Abstract

We are preparing Silicon Drift Detecters (SDDs) for a precision spectroscopy of kaonic helium-3 3d→2p x-rays (∼6.2 keV) at J-PARC (E17, DAY-1). Since we need to operate SDDs and their preamplifiers in a cryogenic system, their low-temperature behavior was investigated. The optimal operational temperatures were found to be 110 - 130 K and over 270 K for SDDs and preamplifiers, respectively. In such condition, energy resolution is around 150 eV (FWHM) with 5.9 keV x-rays and time resolution is around 400 ns (FWHM). We also investigated the effect of different incident angles to verify our calibration method in E17. Although response function depends on incident angle, Mn Ka peak positions differ at most 0.5 eV equivalent. Further basic studies of SDDs are ongoing toward the physics run planned in 2011.

Original languageEnglish
Article number052009
JournalJournal of Physics: Conference Series
Volume312
Issue numberSECTION 5
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventInternational Nuclear Physics Conference 2010, INPC2010 - Vancouver, BC, Canada
Duration: 2010 Jul 42010 Jul 9

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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