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LIFETIME MEASUREMENTS OF THE FIRST EXCITED STATES OF TL$sup 208$ AND Ra$sup 22$$sup 4$

Journal Article · · Nuclear Phys.
OSTI ID:4277902
Half-lives of (2.6 plus or minus 1.0) x 10-/sup 12/ sec for the 40 kev state of Tl/sup 208/ and (7.O plus or minus 1.0) x 10-/sup 10/ sec for the 85 kev state of Ra/sup 224 have been measured by the line shift method using extremely thin sources especially prepared for these measurements. The method has been checked by determining the latter half-life also from a delayed coincidence measurement, which gave (7.5 approximately 1.5) x 10-/sup 10/ sec in good agreement with the first value. (anth)
Research Organization:
Rijks-Universiteit, Groningen, Netherlands
NSA Number:
NSA-13-002454
OSTI ID:
4277902
Journal Information:
Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 8
Country of Publication:
Country unknown/Code not available
Language:
English

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