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| MOPRI116 |
Beam Flattening System based on Non-linear Optics for High Power Spallation Neutron Target at J-PARC |
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- S.I. Meigo, A. Akutsu, K.I. Ikezaki, M. Ooi
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
- H. Fujimori
KEK/JAEA, Ibaraki-Ken, Japan
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In the Japanese Spallation Neutron Source (JSNS) of J-PARC, a mercury is utilized as a target material. Since a serious pitting erosion was found at the target vessel at SNS in ORNL and JSNS, a reduction of a peak current density is required. In order to decrease the peak, we have developed the beam optics based on a non linear using an octupole magnets. In a design calculation, it is found that the peak current density of 30 % can be reduced by introducing the octupole magnets. A status of the design and the experimental results will be reported.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRI116
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