Nuclear excitation by electronic transition (NEET) in {sup 189}Os.
Monochromatic x rays have been used to explore the phenomenon of nuclear excitation by electronic transition (NEET) in the {sup 189}Os atomic/nuclear system. A new theoretical approach to calculating this process has also been developed and predicts a value for the 'NEET probability,' PNEET, of 1.3 x 10{sup -10}. PNEET is the probability that a given atomic excitation (in this case a K vacancy), will result in the excitation of a specific nuclear state (in this case the 69.5-keV level in {sup 189}Os). This value is much lower than most of the calculated values given in the literature for this system. Our measurement gives the result PNEET <9 x 10{sup -10}, an upper limit which is several orders of magnitude lower than the values found in previous measurements, but which is consistent with the new calculation.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 942839
- Report Number(s):
- ANL/PHY/JA-35100; PRVCAN; TRN: US200923%%634
- Journal Information:
- Phys. Rev. C, Vol. 61, Issue 05 ; May 2000; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- ENGLISH
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