Giaz, A. (2015) Measurement of β−-decay continuum spectrum of 138La. Il nuovo cimento C, 38 (2). pp. 1-6. ISSN 1826-9885
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Abstract
The LaBr3:Ce scintillator offers the unique opportunity to study the 138La β− radioactive decay. This decay is a 2nd-order unique forbidden transition. The 138La isotope is one of the rarest isotopes on earth (it is present as 0.09% in natural lanthanum) and it has an extremely long lifetime, of the order of 1011 years. Large amounts of 138La are, indeed, needed for the measurement of the β−-decay spectrum. In the literature, only one experimental measurement is present and the results are not reproduced by theoretical calculations. A second measurement of the β− continuum is presented in this work. For this measurement, two LaBr3:Ce scintillators (3"×3") were used. The measured spectrum β− is found to be comparable to the one previously measured and published.
| Item Type: | Article |
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| Uncontrolled Keywords: | Scintillation detectors ; β decay; double β decay; electron and muon capture |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 May 2020 15:34 |
| Last Modified: | 27 May 2020 15:34 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19040 |
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