LIFETIMES OF THE FIRST EXCITED STATES OF F$sup 17$ AND O$sup 1$$sup 7$
Using the gamma - gamma coincidence method and an electronic time-to- amplitude converter, the lifetimes of the first excited states in the mirror pair O/sup 17/(0.87 Mev) and F/sup 17/(0.50 Mev) were measured. The reactions initiating the gamma cascades were O/sup 16/(d,p)O/sup 17/ and direct proton capture in O/sup 16/. The time resolution of the coincidence circuit was good enough to allow the lifetime measurements to be made by direct observation of the exponential decay, rather than by measurement of the centroid shift. The measured mean life of O/sup 17/ is (2.55 plus or minus 0.13) x 10/sup -10/ sec; the measured mea n life of F/sup 17/ is (4.45 plus or minus 0.22) x 10/sup -10/ sec. Both of these re sults are in reasonable agreement with earlier, less accurate values. (auth)
- Research Organization:
- Brookhaven National Lab., Upton, N.Y.
- NSA Number:
- NSA-15-000948
- OSTI ID:
- 4124312
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Vol. Vol: 120; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Mass and $beta$ decay of the new isotope $sup 29$Mg: systematics of masses of T/subz/ = 5/2 nuclides in the 2s-1d shell
LIFETIMES OF THE FIRST EXCITED STATES OF B$sup 10$, O$sup 17$ AND F$sup 17$. PART I