Spins und ?-Multipolordnungen beim Zerfall Fe59?Co59

Collin, W.; Daniel, H.; Mehling, O.; Schmitt, H.; Spannagel, G.; Subudhi, K.S.

doi:10.1007/bf01380684

Cited by 17 publications

(1 citation statement)

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“…Shape factors and relative intensities were obtained from published accurate values [IO, 23, 24, 251. The maximum energies, used in these calculations, were for ls7Cs 514 keV and 1176 keV [IO, 231 and for 59Fe 130 keV [26], 1573 keV [24] and also the maximum { N [ ~n ( z , w ) F,,,,(z, W energies determined in this work 280 keV and 464 keV. In the procedure of normalization the fact was used that the theoretical continuous distribution plus a discrete internal conversion distribution (with the correct ratio to the former) will give the same number of pulses as the reference spectrum and the anticoincidence spectrum above a certain energy limit (80 keV for 137Cs, 90 keV for j9Fe).…”

Section: Analysis and Resultsmentioning

confidence: 99%

Semiconductor Detector with an Anticoincidence System for the Suppression of Backscattered Beta Rays

Petersson¹

1971

Phys. Scr.

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A lithium-drifted silicon semiconductor detector (LIDS) and a plastic scintillator are operated in anticoincidence in a measuring arrangement with small energy distortion. With this measuring arrangement the whole energy distortion in the semiconductor β-spectrum cannot be eliminated, but the part of the distortion that depends on backscattering is strongly suppressed. This gives an improvement of the energy resolution. Fermi-Curie plots become more linear and the maximum energies, determined by them, more correct. The spectrometer was tested by measuring the β-spectra from 207Bi, 137Cs and 59Fe. The measurements show that the method is applicable even to β-sources giving γ-radiation, and when the lifetime of the daughter nucleus is short. As by-results some measuring data are obtained, upon which the distortion effect has a negligible influence.

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Section: Analysis and Resultsmentioning

confidence: 99%