Half-life of44Ti
| Autor: | I. D. Goldman, Matthew Nelson, Yuen-Dat Chan, I. Zlimen, K. T. Lesko, Eric B. Norman, Fred E. Wietfeldt, Edgardo Browne, Ruth-Mary Larimer |
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| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Physical Review C. 57:2010-2016 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.57.2010 |
| Popis: | We present the results of two separate measurements of the half-life of {sup 44}Ti relative to those of {sup 22}Na and {sup 207}Bi, respectively. By comparing the numbers of 1157-keV {gamma} rays from {sup 44}Ti to those of 1274-keV {gamma} rays from {sup 22}Na observed from a mixed source over a period of approximately 2 yr, we determined the half-life of {sup 44}Ti to be 61.5{plus_minus}1.0yr. From an approximately 1-yr-long study of another mixed source, where we compared the numbers of 1157-keV {gamma} rays from {sup 44}Ti to those of 1064-keV {gamma} rays from {sup 207}Bi, we determined the {sup 44}Ti half-life to be 62{plus_minus}5yr. From these two results, we have obtained a best value of 62{plus_minus}2yr for the half-life of {sup 44}Ti. The astrophysical implications of this result are discussed. {copyright} {ital 1998} {ital The American Physical Society} |
| Databáze: | OpenAIRE |
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