Zr9602 (isotopic concentration 90 per cent) was irradiated by slow neutrons in the Oak Ridge pile. The half-period of the niobium daughter element, chemically separated from zirconium, was found to be 72.1 ~ 0.7 rain. and that of Zr 97 to be 17.0 + 0.2 hr. By aluminum absorption and Feather analysis
Radiations from As77 and Ge71
โ Scribed by B.L. Saraf; J. Varma; C.E. Mandeville
- Publisher
- Elsevier Science
- Year
- 1953
- Tongue
- English
- Weight
- 49 KB
- Volume
- 256
- Category
- Article
- ISSN
- 0016-0032
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observations have been made over temperatures between 900" and 1300" C. The initial conductance is found to obey Ohm's law; its temperature dependence is of the usual exponential form with an activation energy of 1.1 volt. Optica1 absorption measurements show an absorption maximum at 4000 A.U. Assum