Mechanical Analysis of Pion Capture Superconducting Solenoid System for COMET Experiment at J-PARC

Authors

Masami Iio, Makoto Yoshida, Ye Yang, Taekyung Ki, Takahiro Okamura, Ken-ichi Sasaki, Yasuhiro Makida, Toru Ogitsu, Satoshi Mihara, Tatsushi Nakamoto, Michinaka Sugano, Akio Terashima, Hiroshi Kawamata

Affiliations

High Energy Accelerator Research Organization (KEK), Tsukuba, Japan
Kyushu University, Fukuoka, Japan

Journal

Published Date

12/15/16

DOI

Abstract

KEK is currently constructing a long series of superconducting solenoid beamline for the COMET Phase-I experiment at the Hadron facility of J-PARC. The magnet system consists of a 5-T pion capture solenoid, a curved muon transport solenoid, and a large bore detector solenoid. The pion capture solenoid system consists of a large cold mass including four coils with an inner diameter of 1340 mm and a small cold mass including six small coils with an inner diameter of 500 mm. The peak magnetic field on the conductor reaches to 5.4 T at an operation current of 2700 A. This paper presents the design and structural details of a magnet, radiation-resistant coil, cold mass and vacuum vessel, apart from the results of the electromagnetic analysis in two-dimensional (2-D) and 3-D.

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