Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon

T. Masuda; S. Okubo; H. Hara; T. Hiraki; S. Kitao; Y. Miyamoto; K. Okai; R. Ozaki; N. Sasao; M. Seto; S. Uetake; A. Yamaguchi; Y. Yoda; A. Yoshimi; K. Yoshimura

doi:10.1063/1.4989405

Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon

T. Masuda, S. Okubo, H. Hara, T. Hiraki, S. Kitao, Y. Miyamoto, K. Okai, R. Ozaki, N. Sasao, M. Seto, S. Uetake, A. Yamaguchi, Y. Yoda, A. Yoshimi, K. Yoshimura

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Abstract

We developed a fast X-ray detector system for nuclear resonant scattering (NRS) experiments. Our system employs silicon avalanche photo-diode (Si-APD) as a fast X-ray sensor. The system is able to acquire both timing and energy of a single X-ray photon simultaneously in a high rate condition, 10⁶ counts per second for one Si-APD. The performance of the system was investigated in SPring-8, a synchrotron radiation facility in Japan. Good time resolution of 120 ps (FWHM) was achieved with a slight tail distribution in the time spectrum by a level of 10^-9 at 1 ns apart from the peak. Using this system, we successfully observed the NRS from the 26.27-keV level of mercury-201, which has a half-life of 630(50) ps. We also demonstrated the reduction of background events caused by radioactive decays in a radioactive sample by discriminating photon energy.

Original language	English
Article number	063105
Journal	Review of Scientific Instruments
Volume	88
Issue number	6
DOIs	https://doi.org/10.1063/1.4989405
Publication status	Published - Jun 1 2017

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Instrumentation

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Masuda, T., Okubo, S., Hara, H., Hiraki, T., Kitao, S., Miyamoto, Y., Okai, K., Ozaki, R., Sasao, N., Seto, M., Uetake, S., Yamaguchi, A., Yoda, Y., Yoshimi, A., & Yoshimura, K. (2017). Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon. Review of Scientific Instruments, 88(6), Article 063105. https://doi.org/10.1063/1.4989405

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title = "Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon",

abstract = "We developed a fast X-ray detector system for nuclear resonant scattering (NRS) experiments. Our system employs silicon avalanche photo-diode (Si-APD) as a fast X-ray sensor. The system is able to acquire both timing and energy of a single X-ray photon simultaneously in a high rate condition, 106 counts per second for one Si-APD. The performance of the system was investigated in SPring-8, a synchrotron radiation facility in Japan. Good time resolution of 120 ps (FWHM) was achieved with a slight tail distribution in the time spectrum by a level of 10-9 at 1 ns apart from the peak. Using this system, we successfully observed the NRS from the 26.27-keV level of mercury-201, which has a half-life of 630(50) ps. We also demonstrated the reduction of background events caused by radioactive decays in a radioactive sample by discriminating photon energy.",

author = "T. Masuda and S. Okubo and H. Hara and T. Hiraki and S. Kitao and Y. Miyamoto and K. Okai and R. Ozaki and N. Sasao and M. Seto and S. Uetake and A. Yamaguchi and Y. Yoda and A. Yoshimi and K. Yoshimura",

note = "Funding Information: The synchrotron radiation experiments were performed at the BL09XU beamline of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2014A1334, 2014B1524, 2015B1380, 2016A1420, and 2016B1232). T.H. is supported by Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Research Fellow. This work was supported by JSPS KAKENHI Grant No. 15H03661, Technology Pioneering Projects in RIKEN, and the MATSUO foundation. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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doi = "10.1063/1.4989405",

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AU - Masuda, T.

AU - Okubo, S.

AU - Hara, H.

AU - Hiraki, T.

AU - Kitao, S.

AU - Miyamoto, Y.

AU - Okai, K.

AU - Ozaki, R.

AU - Sasao, N.

AU - Seto, M.

AU - Uetake, S.

AU - Yamaguchi, A.

AU - Yoda, Y.

AU - Yoshimi, A.

AU - Yoshimura, K.

N1 - Funding Information: The synchrotron radiation experiments were performed at the BL09XU beamline of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2014A1334, 2014B1524, 2015B1380, 2016A1420, and 2016B1232). T.H. is supported by Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Research Fellow. This work was supported by JSPS KAKENHI Grant No. 15H03661, Technology Pioneering Projects in RIKEN, and the MATSUO foundation. Publisher Copyright: © 2017 Author(s).

PY - 2017/6/1

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N2 - We developed a fast X-ray detector system for nuclear resonant scattering (NRS) experiments. Our system employs silicon avalanche photo-diode (Si-APD) as a fast X-ray sensor. The system is able to acquire both timing and energy of a single X-ray photon simultaneously in a high rate condition, 106 counts per second for one Si-APD. The performance of the system was investigated in SPring-8, a synchrotron radiation facility in Japan. Good time resolution of 120 ps (FWHM) was achieved with a slight tail distribution in the time spectrum by a level of 10-9 at 1 ns apart from the peak. Using this system, we successfully observed the NRS from the 26.27-keV level of mercury-201, which has a half-life of 630(50) ps. We also demonstrated the reduction of background events caused by radioactive decays in a radioactive sample by discriminating photon energy.

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Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon

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