Water-rock reactions during gamma-ray irradiation

Chinatsu Yonezawa, Tsuyoshi Tanaka, Hikari Kamioka

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The effects of gamma-ray irradiation on water-rock reactions are investigated by comparing leaching experiments with and without irradiation. Basaltic rock fragments were leached for 887 h with distilled, deionized water, while moderately flushing with air. During the leaching, ten aliquots were removed and analyzed by ion chromatography and instrumental neutron activation analysis (INAA). The leached amounts of Na, K, Ca, Cs, Mg, Co, Ba, Zn and Sc are higher for the irradiated run than those for non-irradiated, but irradiation depressed the leaching of W. The differences in the amount of the dissolved elements between irradiated and non-irradiated runs for the same time correlate with the absorbed dose of water. Four temporal variation types of the radiation release are recognized.

Original languageEnglish
Pages (from-to)461-469
Number of pages9
JournalApplied Geochemistry
Issue number3
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Geochemistry and Petrology


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