Study of the neutrino beam line

中微子束线的研究

• 批准号: 10041129
• 负责人: IEIRI Masaharu
• 金额: $ 2.62万
• 依托单位: High Energy Accelerator Research Organization (KEK)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10041129/
• 关键词: neutrino beam line; neutrino; long base-line neutrino oscillation experiment; 電磁ホーン; 陽子ビーム

A neutrino beam line for a long-baseline neutrino oscillation experiment (K2K) was being constructed at KEK.Muon neutrinos produced by this beam line at KEK are measured by the SuperKamiokande located 250 Km west of KEK.The objective of this research is...Realizing the neutrino beam line at KEK for the long base-line neutrino oscillation experiment with stable operation with regard to...・efficient transportation of primary proton beam all the way from the extraction of the accelerator to the production target of neutrinos・less beam drift for a long-term operation in terms of targeting position and focusing・constant production of neutrinosThe K2K experiment has been started in January 1999 as scheduled. This research played a key role in the long-term stable operation of the beam line and the efficient beam transportation of primary proton, in order to provide neutrinos for the K2K experiment. The proton beam intensity of 5 × 10^<12> on target per pulse is achieved. Accumulated POT (Protons On Target) during physics run is 2.3 × 10^<19> from June 1999 to June 2000. All beam line components are working well now.

为了进行长基线中微子振荡实验（K2 K），在KEK建造了一条中微子束线，利用位于KEK以西250公里处的SuperKamiokande测量了该束线产生的μ子中微子。在KEK实现中微子束线，用于长基线中微子振荡实验，并稳定运行.一次质子束从加速器引出到中微子产生靶的全程有效传输·在靶向位置和聚焦方面，束流漂移较小，可长期运行·中微子的持续产生K2 K实验已按计划于1999年1月开始。该研究对束流线的长期稳定运行和原初质子的有效束流输运起到了关键作用，为K2 K实验提供了中微子。实现了单脉冲靶上质子束流强度为5 × 10 ~ 4<12>。从1999年6月到2000年6月，物理运行期间的累积POT（质子靶）为2.3 × 10^<19>。所有的光束线组件现在都工作得很好。

项目成果

T.Suzuki et al.: "Soil shielding benchmark experiment and its simulation with MARS using secondary particles produced by 12-GeV protons."Radiat.Prot.Dosim.. 78. 305-312 (1998)

T.Suzuki 等人：“使用 12-GeV 质子产生的二次粒子进行土壤屏蔽基准实验及其 MARS 模拟。”Radiat.Prot.Dosim.. 78. 305-312 (1998)

M.Tomizawa et al.: "The RB Facility at KEK-Tanashi"Heavy Ion Accelerator Technology. 451-465 (1999)

M.Tomizawa 等人：“KEK-Tanashi 的 RB 设施”重离子加速器技术。

I.Sakai et al.: "PHASE-SPACE PAINTING OF CHARGE-EXCHANGE INJECTION IN THE KEK BOOSTER"Proceedings of Sixth European Particle Accelerator Conference (EPAC'98). 2137-2139

I.Sakai 等人：“KEK 助推器中电荷交换注入的相空间绘画”第六届欧洲粒子加速器会议 (EPAC98) 的会议记录。

Y.Yamanoi et al.: "Large Horn Magnets at the KEK Neutrino Beam Line --- part 2"IEEE TRANS.ON APPLIED SUPERCONDUCTIVITY. VOL.10, NO.1. 252-255 (2000)

Y.Yamanoi 等人：“KEK 中微子束线处的大型喇叭磁体 --- 第 2 部分”IEEE TRANS.ON 应用超导。

I.Sakai et al.: "PHASE-SPACEPAINTING OF CHARGE-EXCHANGE INJECTION IN THE KEK BOOSTER"Proceedings of SixthEuropean Particle Accelerator Conference (EPAC'98). 2137-2139 (1998)

I.Sakai 等人：“KEK 助推器中电荷交换注入的相空间绘制”第六届欧洲粒子加速器会议 (EPAC98) 的会议记录。