Ground-state $alpha$-decay of N = 128 isotones $sup 216$Ra, $sup 217$Ac, and $sup 218$Th
Journal Article
·
· Nucl. Phys., A, v. A217, no. 2, pp. 253-268
OSTI ID:4399660
The alpha -decay propenties of very short-lived N = 125 isotones, /sup 216/Ra,/sup 217/Ac and /sup 214/Th, were investigated by the pulsed-beam method. Alpha emitters of interest were produced in the bombardment of /sup 208/Pb or / sup 209/Bi with 65 to 96 MeV /sup 12/C or /sup 14/N ions and alpha decays were measured between natural beam bursts of the cyclotron. The results obtained are E/sub alpha / = 9.349 plus or minus 0.008 MeV and t/sub 1/2 = 182 plus or minus 10 ns for /sup 216/Ra, 9.650 plus or minus 0.010 MeV and 111 plus or minus 7 ns for /sup 217/Ac, 9.665 plus or minus 0.010 MeV and 96 plus or minus 7 ns for /sup 218/Th. The experimental reduced alpha -widths of N = 128 isotones from /sup 212/Po to /sup 218/Th are shown to agree well with the simple shell model calculation. (auth)
- Research Organization:
- Inst. of Physical and Chemical Research, Saitama, Japan
- NSA Number:
- NSA-29-011531
- OSTI ID:
- 4399660
- Journal Information:
- Nucl. Phys., A, v. A217, no. 2, pp. 253-268, Journal Name: Nucl. Phys., A, v. A217, no. 2, pp. 253-268; ISSN NUPAB
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Spectroscopy of the isotones [sup 215]Rn and [sup 217]Ra
ALPHA HALF-LIVES OF Po$sup 216$, At$sup 217$ AND Rn$sup 21$$sup 8$
High-spin states in /sup 214/Rn, /sup 216/Ra and a study of even-even N = 128 systematics
Journal Article
·
Mon Jan 31 23:00:00 EST 1994
· Physical Review, C (Nuclear Physics); (United States)
·
OSTI ID:5320344
ALPHA HALF-LIVES OF Po$sup 216$, At$sup 217$ AND Rn$sup 21$$sup 8$
Technical Report
·
Tue May 01 00:00:00 EDT 1962
·
OSTI ID:4699071
High-spin states in /sup 214/Rn, /sup 216/Ra and a study of even-even N = 128 systematics
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· Phys. Rev. C; (United States)
·
OSTI ID:6142633