Development of 300 °C heat resistant boron-loaded resin for neutron shielding

被引:25
作者
Morioka, Atsuhiko
Sakurai, Shinji
Okuno, Koichi
Sato, Satoshi
VerziroV, Yury
Kaminaga, Atsushi
Nishitani, Takeo
Tamal, Hiroshi
Kudo, Yusuke
Yoshida, Shigeru
Matsukawa, Makoto
机构
[1] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan
[2] Hazama Corp, Tsukuba, Ibaraki 3050822, Japan
[3] Kaken Corp, Mito, Ibaraki 3100903, Japan
关键词
Heat resistance - Neutrons - Phenolic resins - Plasma devices - Polyethers - Shielding - Superconducting cables;
D O I
10.1016/j.jnucmat.2007.03.198
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A new neutron shielding material resistant to temperatures up to 300 degrees C is developed, consisting of a phenol-based resin with 6 wt% boron. The resin will be applied around the vacuum vessel of the DD plasma device to suppress the streaming neutrons and to reduce the nuclear heating of the superconducting coils. The neutron shielding performance of the newly developed resin.. examined by the Cf-252 neutron source, is almost the same as that of polyethylene, which is not effective above 100 degrees C. The new resin maintains its mechanical strength in the high temperature region. The outgas of CO, NH3 and H2O from the resin have been measured, however, the neutron shielding performance of the resin after 200 degrees C baking was almost the same as that before baking. Thirteen kinds of organic gases have been observed at similar to 300 degrees C. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1085 / 1089
页数:5
相关论文
共 13 条
[1]  
Briesmeister JF, 2000, MCNP GEN MONTE CARLO
[2]  
Engle Jr W. W., 1967, A Users Manual For Anisn: A One Dimensional Discrete Ordinates Transport Code With Anisotropic Scattering (No. K-1693)
[3]   NEUTRON YIELD MEASUREMENTS BY USE OF FOIL ACTIVATION AT JT-60U [J].
HOEK, M ;
NISHITANI, T ;
IKEDA, Y ;
MORIOKA, A .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (01) :885-887
[4]  
MAEKAWA F, 1999, JAERI DATA CODE 9904
[5]  
MAKI K, 1991, JAERIM91072
[6]  
MAKI K, 1991, JAERIM91073
[7]   Evaluation of radiation shielding, nuclear heating and dose rate for JT-60 superconducting modification [J].
Morioka, A ;
Sakasai, A ;
Masaki, K ;
Ishida, S ;
Miya, N ;
Matsukawa, M ;
Kaminaga, A ;
Oikawa, A .
FUSION ENGINEERING AND DESIGN, 2002, 63-64 :115-120
[8]  
Morioka A., 2004, J NUCL SCI TECHNO S4, P109
[9]  
Nakagawa T, 1995, J NUCL SCI TECHNOL, V32, P1259, DOI [10.3327/jnst.32.1259, 10.1080/18811248.1995.9731849]
[10]   Neutron shielding material based on colemanite and epoxy resin [J].
Okuno, K .
RADIATION PROTECTION DOSIMETRY, 2005, 115 (1-4) :258-261