Immobilization of Radionuclides in Irradiated Reactor-Graphite Blocks

Immobilization of Radionuclides in Irradiated Reactor-Graphite Blocks

The immobilization of radionuclides in samples of GR-280 reactor graphite by the fixative "atomik" is described. A graphite block extracted from RBMK masonry after 17 years of operation is used for the investigations. The investigations showed that the strength of the fixative samples incr...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Atomic energy (New York, N.Y.) N.Y.), 2002-06, Vol.92 (6), p.475-481
Hauptverfasser: Platonov, P A, Shtrombakh, YaI, Chugunov, OK, Lobanov, N S, Aleksandrov, V P, Alekseev, V M, Semochkin, V M, Denisov, V A, Kochkin, V N
Format: Artikel
Sprache:eng
Schlagworte:
Atomic energy
Graphite
Immobilization
Irradiation
Masonry
Nuclear reactors
Nuclides
Radioisotopes
Radiolysis
RBMK
Reactors
Studies
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The immobilization of radionuclides in samples of GR-280 reactor graphite by the fixative "atomik" is described. A graphite block extracted from RBMK masonry after 17 years of operation is used for the investigations. The investigations showed that the strength of the fixative samples increases only with irradiation doses above 15000 Mrad. The radiation-chemical yield of gaseous products of radiolysis from samples of the fixative under g irradiation in vacuum is 12.10 super(-10) cm super(3)/(g.rad). a, b, and g-emitting nuclides are leached from the samples of irradiated graphite; this process proceeds continually. When the irradiated graphite samples are permeated with the fixative "atomik," no release of radionuclides is observed at 20C for 2 yr.
ISSN:1063-4258
1573-8205
DOI:10.1023/A:1020214215263