Superconducting dipole magnet for Hyperon spectrometer
Superconducting dipole magnet for Hyperon spectrometer
复制标题
Hyperon 能谱仪用超导偶极磁体
DOI：
10.1016/j.nima.2022.167775
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Yoshida J.
中科院分区：
文献类型：
--
作者：
Ahn J.K.;Choi S.;Hasegawa S.;Hayakawa S.H.;Hong J.;Ichikawa Y.;Imai K.;Kim S.H.;Makida Y.;Ohhata H.;Sako H.;Sasaki K.;Sato S.;Takahashi T.;Tanida K.;Yoshida J.
We have constructed a conduction-cooled superconducting dipole magnet for the Hyperon spectrometer at Japan Proton Accelerator Research Complex (J-PARC). The magnet is a Helmholtz-type dipole magnet with two circular coils with a radius of 500 mm separated by 500 mm. It provides a uniform magnetic field of 1.0 T or higher in a volume of ϕ 600 mm× 600 mm, covering the drift region of a time projection chamber (TPC). Owing to the target location inside the TPC, the Hyperon spectrometer has a broad angular coverage with a nearly 2 π solid angle. We have successfully excited the magnet up to 1.3 T. At 1.0 T, we operated it stably for more than 1 week in single-magnet configuration and double-magnet configuration with a normal-conducting 0.7-T dipole magnet located 30 cm apart. The measured magnetic field distribution in the TPC volume is consistent with the calculated field map.
