The β-Thorium Phosphate Diphosphate (β-TPD), Th4(PO4)4P2O7, can be presented as a potential performant as actinide-bearing phase for nuclear waste storage in geological deposit.
This ceramic can be loaded with large amounts of tetravalent actinides like plutonium andexhibits a high resistance to aqueous corrosion and a high thermal stability. Nevertheless selfirradiation by alpha-decays due to the actinides could modify these performances. Thus, it appears necessary to study the effects of self-irradiation on the chemical and physical properties of the ceramic. Self-irradiation was mainly simulated by external exposition to radiation and the dissolution of the matrix was studied trough two kinds of experiments: 1) samples were irradiated then submitted to dissolution tests (post-irradiation dissolution: exsitustudies), 2) samples were immerged during irradiation by γ−rays and α particles which
enables to study the effects of radiolysis of the leaching medium on the dissolution of the
sample (in-situ studies). Other simulations were performed by internal irradiation through the
loading of samples with 239Pu then leaching.
TAMAIN C.;
DACHEUX N.;
OZGUMUS A.;
GARRIDO F.;
THOME L.;
TERRA O.;
BOULET Pascal;
2005-08-30
University of Vienna
JRC30377
https://publications.jrc.ec.europa.eu/repository/handle/JRC30377,
| Name | Country | City | Type |
|---|
This document is only visible at the Commission level.
You are not authorized to publish or distribute it outside the European Commission.
This is a public document. You can share this publication.
Datasets
| ID | Title | Public URL |
|---|
Dataset collections
| ID | Acronym | Title | Public URL |
|---|
Scripts / source codes
| Description | Public URL |
|---|
Additional supporting files
| File name | Description | File type |
|---|