The large-acceptance spectrometer TAGX for photoreaction studies at the 1.3-GeV Tokyo electron synchrotron

K. Maruyama, G. Garino, S. Kato, M. Koike, Y. Murata, M. Mutou, K. Niki, K. Yoshida, M. Asai, S. Asano, I. Endo, S. Endo, M. Harada, S. Kasai, K. Miyamoto, Y. Sumi, A. Sasaki, K. Hossain, Z. Papandreou, H. HasaiK. Iwatani, A. Leone, R. Perrino, Y. Wada, T. Maki, F. Farzanpay, G. M. Huber, M. Iurescu, G. J. Lolos, A. Weinerman, A. Hisadomi, H. Itoh, S. Maruon, H. Murooka, R. Naridomi, T. Ogata, J. C. Kim, B. Lasiuk, C. Rangacharyulu, O. Konno, A. Shinozaki, T. Terasawa, H. Yamazaki, K. Maeda, T. Suda, H. Shimizu, T. Emura, H. Hirosawa, K. Niwa, H. Miyamoto, K. Nagata, H. Yamashita

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The study of photoreactions on light nuclei with the TAGX spectrometer started in 1987 using the 20% duty-cycle tagged-photon beam at the 1.3-GeV Tokyo electron synchrotron. TAGX is comprised of a π-sr magnetic spectrometer for detection of charged pions, kaons, and protons and a 0.85-sr time-of-flight spectrometer for neutrons. It has served in the past eight years as a unique medium-energy-resolution multi-particle spectrometer for coincidence experiments to detect such final states as pn, pp, π+π-, ppπ+π-: and pnπ+π-: some of which were kinematically-complete measurements of three-particle and four-particle final states. Details of the detector components, their performance, data acquisition, event reconstruction analyses, and detector-acceptance calculations are described together with the results of experience acquired in those experiments. A TAGX improvement in the momentum resolution required for charged particle measurements in the 1-GeV photon energy region is also reported.

Original languageEnglish
Pages (from-to)335-355
Number of pages21
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume376
Issue number3
DOIs
Publication statusPublished - 1996 Jul 11

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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