Published 1996 | Version v1
Book Metadata-only

Mechanisms of radiolytic decomposition of complex nuclear waste forms

Creators

  • 1. Pacific Northwest National Lab., Richland, WA (United States)

Description

The mechanisms of radiation induced degradation of soda glass were investigated via low-energy (5-120 eV) electron-stimulated desorption (ESD) studies. The major ionic desorption products observed are H+, Na+, O+ and Si+. The primary thresholds for H+, O+ and Na+ are approximately 25, 30 and 90 eV. These thresholds correlate to deep valence holes which Auger decay. The inter-atomic and intra-atomic Auger processes result in a reversal of the Madelung potential and cation desorption due to Coulomb repulsion. This is one of the main mechanisms of radiation damage of glass surfaces and is typical of wide band-gap materials

Additional details

Publishing Information

Publisher
American Nuclear Society, Inc.
Imprint Place
La Grange Park, IL (United States)
Imprint Title
Proceedings of the international topical meeting on nuclear and hazardous waste management (SPECTRUM '96): Volume 1
Imprint Pagination
885 p.
Journal Page Range
p. 616-619.

Conference

Title
international conference on nuclear and hazardous waste management.
Acronym
SPECTRUM '96
Dates
18-23 Aug 1996.
Place
Seattle, WA (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
28050557
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DESORPTION; ELECTRON REACTIONS; GLASS; HIGH-LEVEL RADIOACTIVE WASTES; IONS; LOW-LEVEL RADIOACTIVE WASTES; RADIOLYSIS; SODIUM CARBONATES; VITRIFICATION
Descriptors DEC
ALKALI METAL COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHARGED PARTICLES; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; DECOMPOSITION; LEPTON REACTIONS; MATERIALS; NUCLEAR REACTIONS; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SODIUM COMPOUNDS; WASTES

Optional Information

Contract/Grant/Project number
Contract AC06-76RL01830
Secondary number(s)
CONF-960804--Vol.1.