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Mio, Keigo; Ogiwara, Norio; Marushita, Motoharu*; Arai, Hideyuki*; Goto, Keiichi*
JAEA-Technology 2009-064, 40 Pages, 2010/03
JAEA-Technology-2009-064.pdf:9.57MB
Intense of radiation fields will be expected since large intensity proton beam current of J-PARC 3GeV RCS (Rapid-Cycling Synchrotron). 
-ray irradiation tests of vacuum system equipment were carried out to evaluate radiation resistance for RCS. Requirement of radiation resistance of vacuum equipment is assumed as 10 MGy. -ray irradiation examination has been done to select the vacuum equipment. As a result, cooling-fan, feed-through-connector, baking heater, piping sealants have been shown to have radiation resistance as 10 MGy. Dry scroll vacuum pump was shown as only 1 MGy from the restriction of the material of the chip seal (Teflon).
Mio, Keigo; Ogiwara, Norio; Hikichi, Yusuke; Marushita, Motoharu*; Arai, Hideyuki*; Goto, Keiichi*; Nishizawa, Daiji*; Furukori, Hisayoshi*
Proceedings of 5th Annual Meeting of Particle Accelerator Society of Japan and 33rd Linear Accelerator Meeting in Japan (CD-ROM), p.252 - 254, 2008/00
-Ray irradiation tests of vacuum system equipment were carried out to evaluate radiation resistance for J-PARC 3GeV RCS(Rapid-Cycling Synchrotron). Intense of radiation fields will be expected since large intensity proton beam current of RCS. Regarding Steady operation and radiation protection, radiation hardness is required approximately 10MGy to 100MGy. Cable, Feed-through-connector, Cooling-fan, Baking heater, piping Sealants have been tested. All the examination objects were evaluated to have radiation hardness at least 10MGy and expected to operate with stability under radiation field of 3GeV RCS.
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JAERI-M 9301, 48 Pages, 1981/02
no abstracts in English