KEK Report: 99-5

Abstract

本計画は、KEK(高エネルギー加速器研究機構)の大型ハドロン(JHF)計画と原研(日本原子力研究所)の中性子科学研究計画(NSP)に基づき、高いビーム出力の最先端を目指す統合計画である。統合計画では3-GeVおよび50-GeV PS(陽子シンクロトロン)、15μAの1次陽子ビームを用いて、世界最高強度の2次粒子ビームを生成可能である。計画の概要を組織、国際的役割、建設地の選定を含めて記述した。実験施設と実験プログラムを原子核物理、素粒子物理、中性子科学、ミューオン科学、エキゾチック核ビームによる科学、および核変換技術の分野に分けて記述した。高エネルギー陽子のビーム強度を決定する加速器は2期に分けて整備される。第1期の1MWのパルス中性子源を含む加速器複合体計画を中心に、加速器方式、ライナック、格子設計を解説した。将来計画として、各分野の第2期計画を述べた。

This project is based on two previous proposals, that is, the Japan Hadron Facility (JHF) project planned by KEK (High Energy Accelerator Research Organization) and the Neutron Science Project (NSP) planned by JAERI (Japan Atomic Energy Research Institute), and is an integrated project to aim to be the advanced accelerator with the largest beam output. In the integrated project, using the primary proton beam of 15 micro A generated by 3 GeV and 50 GeV PS (Proton Synchrotron), it is possible to produce the secondary particle beam with the highest intensity in the world. The outline of the project was described including the project organization, the international roles, and the construction site selection. The experimental facilities and experimental programs were described in the respective fields such as atomic nucleus physics, particle physics, neutron science, muon science, science by exotic nuclear beam, and nuclear transformation technology. The accelerator to lead to determine the beam intensity of high energy proton is scheduled to be installed in two stages. Acceleration system, linac, lattice designing were described by focusing on the accelerator complex project including 1 MW pulse neutron source of the first stage. As a future project, the second stage of the project for each field was presented.