Density change and F-centre formation in X-rayed sodium chloride crystals
Journal Article
·
· Phys. Letters
The density change of NaCl crystals brought about by uniform coloration with x rays was measured using a hydrostatic flotation method. The irradiation was performed with 140-kev, 10-ma x rays at 23 deg C. The density change was found to grow in almost the same manner as the F-center concentration in terms of increasing irradiation time. A linear extrapolation of the experimental curve down to irradiation time t = 0 yields a positive density change. This indicates a contribution to the volume expansion arising from those F-centers formed by the rapid process. It seems possible that the rapid coloration also involves the formation of new vacancies.
- Research Organization:
- Universitat, Bonn
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-034031
- OSTI ID:
- 4681239
- Journal Information:
- Phys. Letters, Journal Name: Phys. Letters Vol. Vol: 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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