2012 Fiscal Year Final Research Report

Development of Large-Current Indirectly CooledRadiation-Resistant Magnets

Research Project

Project/Area Number	23740217
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Particle/Nuclear/Cosmic ray/Astro physics
Research Institution	High Energy Accelerator Research Organization
Principal Investigator	TAKAHASHI Hitoshi 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (60353372)
Project Period (FY)	2011 – 2012
Keywords	耐放射線電磁石 / ビームライン
Research Abstract	We have developed indirectly cooled radiation-resistant magnet coils which can be loaded with larger current than before, which are required for upstream magnets of high-momentum beam lines to be constructed at the Hadron experimental facility in J-PARC. The indirectly cooled coils are made of solid-conductor-type mineral-insulation cables. In order to realize such a large -current indirectly cooled coils, heat problem at the end parts of the coils must be solved. For this purpose, we have carried out load tests using a test sample of the end parts, and have succeeded to load DC2000A to the test piece in vacuum by improving the emissivity and cooling structure of the end parts.

(5 results)