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Title: The experimental study of the polonium-210 release from Li17-Pb83 eutectic

Abstract

The polonium contamination hazard arise as a result of accidental Po-210 release from breeding blanket material - melted Li17Pb83 eutectic - in the environment. The experimental study of Po-210 release rates from eutectic were carry out in atmosphere of noble gases and air with different humidity in 1992-1993. In these experiments used method of carrier-gas flowing above melted eutectic surface. The main findings presented by RDIPE and Karpov Institute are: (1) The polonium-210 release rate strongly increase with eutectic temperature from 150 to 450{degrees}C. (2) The Po-210 release rate in the noble carrier-gas is in proportion with polonium concentration in eutectic in studied range from 10{sup {minus}7} to 10{sup {minus}4} Ci/g. (3) The Po-210 release rate in air remarkably effected by the surface oxide film also. (4) In these experiments for the first time were studied differently gaseous and aerosol polonium-210 fractions release rates. The experimental results and corresponding estimates showed needs the technological and accidental cleaning systems equipped by complex filters of gaseous and aerosols polonium-210 forms.

Authors:
 [1]; ;  [2]
  1. Research and Development Inst. of Power Engineering, Moscow (Russian Federation)
  2. Karpov Inst. of Physical Chemistry, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
196898
Report Number(s):
CONF-940664-
TRN: 95:005767-0067
Resource Type:
Conference
Resource Relation:
Conference: ISFNT-3: international symposium on fusion nuclear technology, Los Angeles, CA (United States), 27 Jun - 1 Jul 1994; Other Information: PBD: 1994; Related Information: Is Part Of Third international symposium on fusion nuclear technology; PB: 362 p.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; BREEDING BLANKETS; REACTOR ACCIDENTS; POLONIUM 210; EVAPORATION; LITHIUM ALLOYS; LEAD BASE ALLOYS; EUTECTICS; LIQUID METALS; RADIATION HAZARDS

Citation Formats

Schipakin, O, Borisov, N, and Churkin, S. The experimental study of the polonium-210 release from Li17-Pb83 eutectic. United States: N. p., 1994. Web.
Schipakin, O, Borisov, N, & Churkin, S. The experimental study of the polonium-210 release from Li17-Pb83 eutectic. United States.
Schipakin, O, Borisov, N, and Churkin, S. 1994. "The experimental study of the polonium-210 release from Li17-Pb83 eutectic". United States.
@article{osti_196898,
title = {The experimental study of the polonium-210 release from Li17-Pb83 eutectic},
author = {Schipakin, O and Borisov, N and Churkin, S},
abstractNote = {The polonium contamination hazard arise as a result of accidental Po-210 release from breeding blanket material - melted Li17Pb83 eutectic - in the environment. The experimental study of Po-210 release rates from eutectic were carry out in atmosphere of noble gases and air with different humidity in 1992-1993. In these experiments used method of carrier-gas flowing above melted eutectic surface. The main findings presented by RDIPE and Karpov Institute are: (1) The polonium-210 release rate strongly increase with eutectic temperature from 150 to 450{degrees}C. (2) The Po-210 release rate in the noble carrier-gas is in proportion with polonium concentration in eutectic in studied range from 10{sup {minus}7} to 10{sup {minus}4} Ci/g. (3) The Po-210 release rate in air remarkably effected by the surface oxide film also. (4) In these experiments for the first time were studied differently gaseous and aerosol polonium-210 fractions release rates. The experimental results and corresponding estimates showed needs the technological and accidental cleaning systems equipped by complex filters of gaseous and aerosols polonium-210 forms.},
doi = {},
url = {https://www.osti.gov/biblio/196898}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Dec 31 00:00:00 EST 1994},
month = {Sat Dec 31 00:00:00 EST 1994}
}

Conference:
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