Mechanical properties of organic materials used in superconducting magnets irradiated by gamma rays at liquid nitrogen temperature

Nakamoto, Tatsushi*; Idesaki, Akira; Morishita, Norio; Ito, Hisayoshi; Kamiya, Tomihiro; Kimura, Nobuhiro*; Makida, Yasuhiro*; Ogitsu, Toru*; Ohata, Hirokatsu*; Yamamoto, Akira*

AIP Conference Proceedings 824, p.225 - 232, 2006/03

https://doi.org/10.1063/1.2192355

Radiation resistance with respect to mechanical properties of organic materials used in the superconducting magnets for the 50 GeV - 750 kW proton beam line for the J-PARC neutrino experiment was studied. Specimens cooled at liquid nitrogen temperature of 77 K were irradiated by gamma rays beyond 10 MGy. The flexural strength of glass-fiber reinforced plastics (GFRPs), the tear strength of polyimide films and the tensile lap-shear strength of adhesive films were evaluated. It was verified that the organic materials used in the superconducting magnet have a sufficient radiation resistance, and the degradation of their mechanical properties after 10 years operation was estimated to be negligible.

Studies on radiation resistance of fiber reinforced plastic composites featured by easiness of manufacturing, III; Mechanical properties of high radiation resistant FRP

Udagawa, Akira; Sasuga, Tsuneo; Seguchi, Tadao; *; *; *; *; *; Sonoda, Katsumi*; *

JAERI-M 89-203, 20 Pages, 1989/12

JAERI-M-89-203.pdf:1.24MB

no abstracts in English