The super omega muon beamline at J-PARC
The super omega muon beamline at J-PARC
复制标题
DOI：
10.1016/j.nima.2008.11.106
复制
发表时间：
2009-02
影响因子：
1.4
通讯作者：
K. Nakahara;Y. Miyake;K. Shimomura;P. Strasser;K. Nishiyama;N. Kawamura;H. Fujimori;S. Makimura;A. Koda;K. Nagamine;T. Ogitsu;A. Yamamoto;T. Adachi;K. Sasaki;Kazushi Tanaka;N. Kimura;Y. Makida;Y. Ajima;K. Ishida;Y. Matsuda
中科院分区：
文献类型：
--
作者：
K. Nakahara;Y. Miyake;K. Shimomura;P. Strasser;K. Nishiyama;N. Kawamura;H. Fujimori;S. Makimura;A. Koda;K. Nagamine;T. Ogitsu;A. Yamamoto;T. Adachi;K. Sasaki;Kazushi Tanaka;N. Kimura;Y. Makida;Y. Ajima;K. Ishida;Y. Matsuda
材料和生命科学设施(MLF)目前正在日本东海的J-PARC建造中。该设施同时容纳了Muon(石墨)和中子(汞)生产目标，并位于3GeV质子光束线的末端。超级欧米茄Muon光束线(四条次级Muon光束线之一)以45°的角度向后延伸，将表面μ+和云μ−传输到实验2号展厅。建成后，它将产生世界上最高强度的脉冲Muon束，功率为4×10~8μ+/S和107μ−/S，将用于各种目的，如Muon催化聚变实验和产生超慢Muon。光束线由正常导电俘获螺线管、超导输运螺线管和Dai Omega型轴向聚焦磁体组成。目前，捕获螺线管的建造工作已接近完成。运输螺线管的设计正在进行中，测试螺线管将在2008年夏天制造和测试。轴向聚焦磁体用于将Muon束聚焦到实验目标上，正在考虑中，特别强调它与传输螺线管的兼容性。
The Materials and Life Science Facility (MLF) is currently under construction at J-PARC in Tokai, Japan. The facility houses both muon (graphite) and neutron (mercury) production targets, and is located at the end of the 3GeV proton beamline. The Super Omega muon beamline (one of four secondary muon beamlines) extends at 45° into backward angles to transport the surface μ+and cloud μ−to experimental hall 2. Once completed, it will produce the highest intensity pulsed muon beam in the world, with 4×108μ+/s and 107μ−/s, which will be used for a variety of purposes such as experiments in muon-catalyzed fusion and the production of ultra-slow muons. The beamline consists of normal-conducting capture solenoids, superconducting transport solenoids, and a Dai Omega-type axial focusing magnet. Currently, the construction of the capture solenoids is nearing completion. The design of the transport solenoids is under way, and tests solenoids will be fabricated and tested during the summer of 2008. The axial focusing magnet, used to focus the muon beam on the experimental target, is under consideration with particular emphasis on its compatibility with the transport solenoids.