RADIATION EFFECTS IN CaF2: Sm
Journal Article
·
· Journal of Applied Physics (U.S.)
The absorption spectra of Sm/sup 3+/ and Sm/sup 2+/ in CaF/sub 2/ are measured from 200 to 800 m mu at room and liquid-nitrogen temperatures. A strong divalent absorption band at 620 m mu has an effective oscillator strength of 1.1 x 10/sup -2/. This band is used to study the reduction of CaFsub 2/: Sm/ sup 3+/ by ionizing radiation. For some samples, the reduction is as large as 50%. The kinetics of the reduction is obscured as a result of the presence of oxygen and other crystal defects. The/ datu indicate that the charge compensator for Sm/sup 3+/ in CaF/sub 2/ is an interstitial F/sup -/ ion. (auth)
- Research Organization:
- Lincoln Lab., Massachusetts Inst. of Tech., Lexington
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-022662
- OSTI ID:
- 4836142
- Journal Information:
- Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 33; ISSN JAPIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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