Nuclear data sheets for A = 213
- LBNL
The available information on the decay characteristics and level structure for all nuclei with the mass number A = 213 is examined. A summary and evaluation of the experimental data, including adopted values and comparisons with theory, are presented. The individual level schemes are discussed, and comments pertaining to spin and parity assignments and to gamma-ray multipolarities are given. Any apparent discrepancies or inconsistencies are pointed out. It should be noted that much of the level information in the A = 213 mass chain is obtained from the alpha decay of the A = 217 parent. Little information is available on the level structure of nuclei with A = 213. Several new groundstate spin and parity assignments are suggested, however, based on favored alpha transitions and, in some cases, estimates of BETA branching. In the case of /sup210/Po and /sup 213/At, these assignments are considered definitive. A definite determination of the spin and parity of the /sup 209/At ground state would also specify the groundstate spins of /sup 213/Fr and /sup 217/ Ac, via favored alpha decay. The level schemes of each of the A = 213 nuclei are shown first, followed by the data used in calculating alpha -hindrance factors. The information of the respective A = 213 nuclei, listed in order of increasing Z, is presented according to the following format: the experimental decay data and their evaluation; reaction data (if any); a summary of the level properties and spin assignments; a discussion of gamma-ray properties; and compilers' comments. The reference list is given at the end of the A = 213 review. All information obtained prior to May 1973 is included. (auth)
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- NSA Number:
- NSA-29-017288
- OSTI ID:
- 4357185
- Journal Information:
- Nucl. Data Sheets, v. 10, no. 6, pp. 597-609, Vol. 10; Other Information: Orig. Receipt Date: 30-JUN-74
- Country of Publication:
- United States
- Language:
- English
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