Room temperature desorption of helium-3 from metal tritides. [Er tritide]
It has long been known that helium-3 accumulates in metal tritides as tritium decays. Early in life nearly 100% of the helium-3 is retained in the lattice, but when a critical concentration is reached (material dependent), the lattice will no longer retain the helium-3 and it is emitted at about the generation rate. Measurements were recently made on a number of erbium tritides with varying concentrations in the ditritide phase. The expected early release characteristics are observed for all of the samples. However, ditritides with higher tritium concentrations reach the rapid release state at much lower helium-3 concentrations. For instance, the helium to metal concentration for rapid release in the unsaturated ditritide is about 0.22, whereas it is only one-tenth this value in the saturated ditritide. The additional tritium in the tritide appears to be the cause of this effect.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- E(29-1)-789
- OSTI ID:
- 7124845
- Report Number(s):
- SAND-76-0578
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
BASIC INTERACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL COMPOSITION
CHEMISTRY
DECAY
DESORPTION
ERBIUM COMPOUNDS
ERBIUM HYDRIDES
EVEN-ODD NUCLEI
HELIUM 3
HELIUM ISOTOPES
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INTERACTIONS
ISOTOPES
LABELLED COMPOUNDS
LEPTONIC DECAY
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
PARTICLE DECAY
QUANTITY RATIO
RADIOCHEMISTRY
RADIOISOTOPES
RARE EARTH COMPOUNDS
SORPTIVE PROPERTIES
STABLE ISOTOPES
SURFACE PROPERTIES
TRITIUM
TRITIUM COMPOUNDS
WEAK INTERACTIONS
WEAK PARTICLE DECAY
YEARS LIVING RADIOISOTOPES