Tritiation of aerogel matrices: T sub 2 O, tritiated organics and tritium exchange on aerogel surfaces
- EG and G Mound Applied Technologies, Miamisburg, OH (USA)
- Sandia Labs., Livermore, CA (USA)
- USDOE, Washington, DC (USA)
Three methods for incorporation of tritium into the phoshor/aerogel matrix have been demonstrated: (1) adsorption of T{sub 2}O by the aerogel, (2) incorporation of tritiated organic into the pores of the aerogel and (3) isotopic exchange of tritium from T{sub 2} gas for the H residing on the surface of the aerogel. Adsorption of T{sub 2}O produces the brightest light (4.4 fL) to date but the tritium is loosely bound. Incorporation of tritiated organics into the pores of the aerogel produces less that theoretical luminance and intensity diminishes rapidly due to precipitation and darkening of the organic from radiation damage. Isotopic exchange produces a stable lamp by tritiating H sites on the surface of the aerogel. A lamp with stable luminance of 1.1 fL has been produced; a theoretical limit for a mono-layer coverage fo the aerogel surface is 2 to 3 fL. 7 refs., 4 figs., 2 tabs.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-88DP43495; AC04-76DR00789
- OSTI ID:
- 6530388
- Report Number(s):
- MLM-3660(OP); CONF-9009201-8; ON: DE91002702
- Resource Relation:
- Conference: Radioluminescent technology conference, Annapolis, MD (USA), 25-26 Sep 1990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Screening Experiments for Removal of Low-Level Tritiated Water
Tritium waste control project progress report, October--December 1975. [Tritiated waste decontamination by molecular excitation; catalytic exchange detritiation studies; development of shipping containers for tritiated liquid waste]
Related Subjects
36 MATERIALS SCIENCE
LIGHT SOURCES
FABRICATION
TRITIUM COMPOUNDS
LUMINOSITY
ADSORPTION
GELS
ORGANIC COMPOUNDS
RADIATION EFFECTS
RADIOLUMINESCENCE
TRITIUM OXIDES
CHALCOGENIDES
COLLOIDS
DISPERSIONS
HYDROGEN COMPOUNDS
LUMINESCENCE
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATION SOURCES
SORPTION
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
360601 - Other Materials- Preparation & Manufacture