Study of high-intensity, high-purity kaon beam lines in extremely heated and high-radiation environment

极热高辐射环境下高强度、高纯度卡翁光束线的研究

• 批准号: 15204024
• 负责人: NOUMI Hiroyuki
• 金额: $ 27.54万
• 依托单位: High Energy Accelerator Research Organization (2004-2006)The High Energy Accelerator Research Organization (2003)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15204024/
• 关键词: kaon; high intensity beam; radiation-hard; beam monitor; beam line; experimental nuclear physics; experimental particle physics; particle beam; 2次ビームライン; 標的; 耐放射線電磁石

1.A water-cooled, rotating nickel disk target was developed. Ni was employed since it is sufficiently hard against thermal and mechanical stresses and erosion2.A cupper collimator was designed in order to protect most upstream secondary beam line magnet from its thermal damages due to beam energy deposit.3.A radiation-hard magnet made from completely inorganic materials was developed and operated in Vacuum. Indirect water-cooled mineral insulated coils were employed.4.An electrostatic separator was newly developed to be radiation hard. FRP cover and mineral oil insulator was replaced to a ceramic insulator in its Cockcroft-Walton type high voltage generator. Mechanical improvements were made in electrode and chamber so that the electric field concentration is expected to be moderate.5.A beam pipe in a gap of the most upstream secondary beam line magnet was given up because of a thermal problem. Instead, the magnet was developed to be operated in a large vacuum chamber.6.A residual gas ionization beam profile monitor was developed, which is so-called a non-destructive beam profile monitor.7.An ion-optical design was completed for a kaon beam line. In the beam line, two stage electrostatic separators were employed to purify a kaon beam. This beam line will be realized as K1.8 and K1.8BR in J-PARC.

1.研制了一种水冷旋转镍靶。2.设计了一种铜准直器，以保护最上游的次级束线磁体免受束流能量沉积引起的热损伤。3.研制了一种完全无机材料的抗辐射磁体，并在真空中工作。采用间接水冷矿物绝缘线圈。4.研制了一种抗辐射的电选机。其Cockcroft-Walton型高压发电机的玻璃钢罩和矿物油绝缘子被替换为陶瓷绝缘子。对电极和腔室进行了机械改进，使电场集中度适中。5.由于热问题，最上游次级束线磁体间隙中的束管被放弃。6.研制了一种剩余气体电离束流剖面监测器，即非破坏性束流剖面监测器。7.完成了一条K介子束流线的离子光学设计。在束流线上，采用两级静电分离器对K介子束流进行净化。该光束线将在J-PARC中实现为K1.8和K1.8BR。

项目成果

J-PARC大強度陽子加速器施設 原子核素粒子実験施設建設グループ ハドロンビームラインサブグループ 第2次中間報告書

J-PARC 高强度质子加速器设施核与粒子实验设施建设小组强子束线小组第二次中期报告

• 发表时间: 2004
• 期刊: KEK-Internal 2004-3
• 作者: T.Kobayashi;田中 万博 ほか
• 通讯作者: 田中 万博 ほか

Performance of Residual Gas Ionization Profile Monitor for High Intensity Proton Beams (in Japanese)

高强度质子束残余气体电离剖面监测仪的性能（日语）

• 发表时间: 2006
• 期刊: Proc. of the 3rd Annual Meeting of Particle Accelerator Society of Japan and the 31th Linear Accelerator Meeting in Japan TO11
• 作者: Y.Sato;et al.
• 通讯作者: et al.

Secondary beam production in the nuclear and particle physics facility in J-PARC

J-PARC 核与粒子物理设施中的二次束产生

• 发表时间: 2005
• 期刊: Journal of Nuclear Matter 343
• 作者: H.Tamura;K.Agari et al.
• 通讯作者: K.Agari et al.

Performance of Residual Gas Ionization Profile Monitor for High Intensity Proton Beams

高强度质子束残余气体电离剖面监测仪的性能

• 发表时间: 2006
• 期刊: Proc. of the 3^<rd> Anuual Meeting of Particle Acclerator Society of Japan and the 31th Linear Accelerator Meeting in Japan
• 作者: Iwamoto;Nobuyuki; Umeda;Hideyuki; Tominaga;Nozomu; Nomoto;Ken'ichi; Maeda;Keiichi;Y.Sato et al.
• 通讯作者: Y.Sato et al.

Radiation-Resistan Magnet for the J-PARC

J-PARC 的抗辐射磁铁

• 发表时间: 2006
• 期刊: IEEE, Transactions of Applied Superconductivity 16・2
• 作者: R. Hazama;et al.;K.H.Tanaka et al.
• 通讯作者: K.H.Tanaka et al.