Excited states in 98 Cd, two proton holes from 100 Sn, were identified and studied for the first time, using in-beam spectroscopy with highly selective ancillary detectors. The structure of the ͑pg 9͞2 ͒ 22 two-proton-hole spectrum below a T 1͞2 0.48͑16͒ ms isomer is deduced and compared to shell-model predictions. A tentative I p ͑8 1 ͒ assignment, as suggested by systematics, yields a strongly reduced B͑E2, 8 1 ! 6 1 ͒ 0.44͑ 120 210 ͒ W.u., corresponding to an effective proton charge of e p 0.85͑ 120 210 ͒e, which is at variance with existing theoretical predictions. [S0031-9007(97)04116-1]
A peak-search method for high resolution gamma-ray spectroscopy, based entirely on spectrum convolution, is presented. The detection of the peak and determination of the peak position, width and area can be realized in successive steps, independent of each other. To realize each of the steps, the spectrum is convoluted with an appropriate near-optimal function. Analytical expressions for the uncertainties of positions, areas and widths can be derived. For resolving doublets the standard least-square technique is used, but on the convoluted spectra, avoiding the problems associated with the background component. The performance of the software package based on the proposed method was successfully tested against two standard sets of test spectra of the International Atomic Energy Agency and intercomparison with other peak-search packages proves that the proposed approach is robust and reliable.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.