发明名称 |
METHOD FOR PRODUCING CESIUM GAMMA-RAY SOURCES |
摘要 |
FIELD: radiochemical industry; recovery of spent nuclear fuel. SUBSTANCE: method involves saturation of silica gel with cesium while concentrating cesium liquor by evaporation at temperature higher than 85 C and lower than boiling point of cesium liquor. As soon as desired saturation of cesium is attained, silica gel is treated with boron-containing solution until mass content of boron becomes not over 10 mg of boron per gram of silica gel. Silica gel obtained is calcinated at 800-1000 C. Condensate (liquor after evaporation) obtained is cleaned of cesium by more than 30 000 times. EFFECT: improved specific activity of cesium gamma-ray sources, improved chemical stability of them, reduced amount of wastes. 1 dwg, 4 tbl
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申请公布号 |
RU2111563(C1) |
申请公布日期 |
1998.05.20 |
申请号 |
RU19970106032 |
申请日期 |
1997.04.14 |
申请人 |
PROIZVODSTVENNOE OB"EDINENIE "MAJAK" |
发明人 |
DZEKUN E.G.;NARDOVA A.K.;KORCHENKIN K.K.;MASHKIN A.N.;JAKOVLEV N.G.;DZEKUN E.G.;NARDOVA A.K.;KORCHENKIN K.K.;MASHKIN A.N.;JAKOVLEV N.G. |
分类号 |
G21F9/16;G21G4/04;(IPC1-7):G21F9/16 |
主分类号 |
G21F9/16 |
代理机构 |
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