scholarly journals Overview of Sandia National Laboratories and Khlopin Radium Institute Collaborative Radiological Accident Consequence Analysis Efforts

1998 ◽  
pp. 333-340
Author(s):  
D. D. Carlson ◽  
M. L. Young ◽  
L. N. Lazarev ◽  
B. F. Petrov ◽  
V. N. Romanovskiy
Keyword(s):  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Consequence Analysis ◽  
Accident Consequence

Porous Alumina Silicate Matrix Gubka for Solidification of 137Cs Strip Product

2006 ◽  
Vol 985 ◽  
Author(s):  
Albert Aloy ◽  
Alexander Strelnikov ◽  
Vyacheslav Essimantovskiy
Keyword(s):  
Remote Control ◽  
Radioactive Waste ◽  
Inorganic Material ◽  
Porous Alumina ◽  
Volume Reduction ◽  
Experimental Unit ◽  
Silicate Matrix ◽  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Control Regime

AbstractSeparated liquid highâlevel radioactive waste (HLW) fractions, in particular, about 100 l of 137Cs strip product with activity up to ∼ 100 Ci/l (3.7 TBq/l) have been produced during the development and testing of partitioning technology and temporary stored at “V.G. Khlopin Radium Institute” (SaintâPetersburg, Russia). The benchâscale experimental unit designed for operation in the hot cell was developed for 137Cs strip product solidification with using of alumina silicate porous inorganic material (PIM) called Gubka.Conditions of saturation, drying and calcinations of the salts into Gubka pores were optimized and the operations under remote control regime were executed during tests with using of simulated strip product doped with 137Cs. The volume reduction coefficients were equal by a factor of 3.2â3.9 and 137Cs discharge into offâgas system was not detected. 137Cs leach rates from Gubka blocks after calcination at 800 °C were 1.0â1.5*10-3 g/m2*day.

Ceramics for the Immobilization of Plutonium and Americium: Current Progress of R&D of the V.G. Khlopin Radium Institute

2003 ◽  
Vol 807 ◽  
Author(s):  
Evgeniy B. Anderson ◽  
Boris E. Burakov
Keyword(s):  
Sol Gel ◽  
Tetragonal Zirconia ◽  
Ceramic Materials ◽  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Crystalline Materials ◽  
Synthesis Conditions ◽  
Mixed Oxide Fuel ◽  
Air Atmosphere ◽  
Environmentally Safe

ABSTRACTSince 1990, the Laboratory of Applied Mineralogy and Radiogeochemistry of the V.G. Khlopin Radium Institute (KRI) has been developing several different types of crystalline host-phases acceptable for the economically feasible and environmentally safe immobilization of actinide wastes. We proposed that ceramics that are based on host phases similar to naturally occurring accessory minerals including zircon, (Zr,Hf,…)SiO4; hafnon, (Hf,Zr,…)SiO4; baddeleyite (monoclinic zirconia), (Zr,Hf,…)O2; tazheranite (cubic zirconia), (Zr,Hf,Ca,Ti,…)O2; garnet, (Ca,Fe,Gd,…)3(Al,Fe,Si,…)5O12; perovskite, (Ca,Gd,…)(Al,Fe,Ti,…)O3, and monazite, (La,Ce,…)PO4, are the most efficient materials for actinide immobilization in deep geological formations. Solid solution of Pu in zirconia, (Zr,Pu)O2, could be used as a ceramic nuclear fuel that is competitive with mixed oxide fuel (MOX). To date, the following crystalline materials doped with 239Pu, 238Pu and 243Am have been successfully synthesized and studied at KRI: zircon; hafnon; cubic and tetragonal zirconia; monazite; aluminate garnet and perovskite. The maximum actinide loading was (in wt.% el.): 239Pu -37; 238Pu-10; 243Am-23. All Pu-Am-doped samples were made in air atmosphere under glove boxes conditions. Polycrystalline (ceramic) materials were made by sintering or melting of sol-gel, co-precipitated hydroxides, oxalates and phosphates or ground oxide precursors; single crystals were grown by a flux method. It was demonstrated that all ceramic samples obtained are characterized by high chemical durability and typical normalized actinide losses in deionized water at 90°C do not exceed 10−2–10−3 g/m2 (without correction for ceramic porosity). However, investigation of long-term behavior of ceramic waste forms requires taking into account the results of accelerated radiation damage study and modeling of ceramic alteration by underground solutions. The principal features of Pu-Am-doped samples obtained so far at KRI and their synthesis conditions are discussed.

Recent nuclear data measurement at the Khlopin Radium Institute

1997 ◽  
Vol 37 (1) ◽  
pp. 151-158 ◽  
Author(s):  
A.A. Filatenkov ◽  
S.V. Chuvaev ◽  
V.A. Jakovlev ◽  
V.P. Popik
Keyword(s):  
Nuclear Data ◽  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Data Measurement

Spark counters developed at the V.G. Khlopin radium institute

1993 ◽  
Vol 21 (3) ◽  
pp. 429-432 ◽  
Author(s):  
V.A. Nikolaev ◽  
V.E. Kopchenov ◽  
A.V. Kozunov ◽  
S.M. Krivonogov ◽  
N.B. Plastinin
Keyword(s):  
Khlopin Radium Institute ◽  
Radium Institute

Porous Crystalline Silica (Gubka) as a Inorganic Support Matrix for Novel Sorbents

2002 ◽  
Vol 713 ◽  
Author(s):  
T. J. Tranter ◽  
A. S. Aloy ◽  
N. V. Sapozhnikova ◽  
D. A. Knecht ◽  
T. A. Todd
Keyword(s):  
Ion Exchange ◽  
Glass Matrix ◽  
Large Scale ◽  
Liquid Waste ◽  
Crystalline Silica ◽  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Inorganic Ion ◽  
Radiation Fields ◽  
Environmental Laboratory

ABSTRACTInorganic ion exchange media typically exist as fine powders, making large-scale use impractical, unless the media can be affixed to an appropriate matrix. Likewise, organic chelating agents are typically dissolved in a solvent and absorbed into porous matrices for use in extraction chromatography. The most common matrices utilized in both cases are organic materials, that are not compatible with high radiation fields or acceptable as final waste forms. Recent investigations have shown that ion exchange sorbents can be effectively loaded within a porous crystalline silica (Gubka) matrix. This approach allows for target radionuclides to be adsorbed into a porous micro-crystalline glass matrix which encapsulates the contaminant and becomes the final waste form. Subsequent to adsorption of the radionuclides, the Gubka matrix can be compressed in a hot uniaxial press, resulting in an even greater volume reduction. The porous glass matrix is produced in Russia using fly ash residue from coal combustion power generating plants. It consists of consolidated arrays of hollow glass cenospheres and is termed Gubka which is the Russian word for sponge. This paper describes results of a collaborative research program between the Khlopin Radium Institute, St.Petersburg, Russia, the Institute of Chemistry and Chemical Technologies, Krasnoyarsk, Russia, the Mining and Chemical Combine, Zheleznogorsk, Russia, and the Idaho National Engineering and Environmental Laboratory. Ammonium molybdophosphate (AMP) for the removal of cesium from acidic liquid waste has been successfully incorporated into Gubka matrices. Test results for cesium removal, using AMP-Gubka, are discussed.

BSUIN – Baltic Sea Underground Innovation Network

2020 ◽  
Author(s):  
Jari Joutsenvaara ◽  
Keyword(s):  
Baltic Sea ◽  
Innovation Management ◽  
Working Environment ◽  
Innovation Network ◽  
The Baltic Sea ◽  
Khlopin Radium Institute ◽  
Radium Institute ◽  
Baltic Sea Region ◽  
The Baltic ◽  
The Individual

<p>The Baltic Sea region hosts numerous underground facilities or underground laboratories (Uls). The Baltic Sea Underground Innovation Network (BSUIN) there are six such facilities, all unique in their characteristics and operational settings, e.g. located in existing or historical mines, research tunnel networks or as a dedicated underground laboratory for a specific purpose. BSUIN project concentrates on the making the Uls more accessible for current and new users,  helping the Uls to understand their infrastructural challenges and possibilities, and through joint marketing to attract a broader spectrum of users into their facilities.</p><p>The underground laboratories participating in BSUIN are Callio Lab (Pyhäjärvi Finland), ÄSPÖ Hard Rock Laboratory (Oskarshamn, Sweden), Ruskela Mining Park (Ruskeala, Russia), Educational and research mine Reiche Zeche (Freiberg, Germany), Underground Low Background Laboratory of the Khlopin Radium Institute (St.Petersburg, Russia) and the Conceptual Lab development co-ordinated by KGHM Cuprum R&D centre (Poland).</p><p>We will present the overview of the project, key outcomes, findings and recommendations for underground laboratories in general. The key outcomes of the project for the individual underground laboratories consist of characterisation of the structural, geological and operational environments together with information on the governing legislation and authorities for the underground sites. Underground risks and challenges in the underground working environment have been documented to help the further development of the individual underground laboratories. Service designs were developed together with the ULs to enhance user support and to attract a broader spectrum of users.  To help users with innovation and innovation management the variety of the innovation services was documented to be used as bases for the future operational development of the ULs. To support the marketing, coordinate activities and develop the cooperation an umbrella organisation European Underground Laboratories association (EUL) will be established to carry on the work started in BSUIN.</p><p>The Baltic Sea Underground Innovation Network, BSUIN, is funded by the Interreg Baltic Sea Region Programme. </p>

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