Superconducting toroidal spectrometer for hypernuclear studies at KEK-PS

被引：0

作者：

Kawachi, A. ^{[1
]}

Tamura, H. ^{[1
]}

Imazato, J. ^{[1
]}

Aoki, M. ^{[1
]}

Chiba, J. ^{[1
]}

Fujita, Y. ^{[1
]}

Hayano, R.S. ^{[1
]}

Ishikawa, T. ^{[1
]}

Kubota, K. ^{[1
]}

Lee, J.M. ^{[1
]}

Miyamoto, T. ^{[1
]}

Outa, H. ^{[1
]}

Park, I.S. ^{[1
]}

Shimizu, Y. ^{[1
]}

Yamazaki, T. ^{[1
]}

机构：

[1] Univ of Tokyo, Tokyo, Japan

来源：

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 1998年 / 416卷 / 2-3期

基金：

日本学术振兴会;

关键词：

Superconducting magnets - Synchrotron radiation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A spectrometer using a toroidal magnet with 12 superconducting coils was constructed at the north experimental hall of the KEK 12 GeV proton synchrotron. The spectrometer comprised 12 individual sectors surrounding the target point and served to measure π- momentum for the purpose of hypernuclear studies via the (stopped K-, π-) reaction. A large solid angle of more than 6%×4πstr was achieved in a wide momentum range between 180 and 350 MeV/c at the maximum 1.8 T magnetic excitation, and in a range between 70 and 150 MeV/c at 0.65 T. A momentum resolution of 1.5 MeV/c FWHM was measured at 205 MeV/c, and a resolution around 3 MeV/c FWHM at 130-200 MeV/c was obtained including energy loss fluctuation in the experimental thick targets.

引用

页码：253 / 262

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