ISSN:
1434-601X
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract An intrinsic Germanium detector of 10 mm depth and 300 mm2 sensitive area has been used to determineβ-endpoint energies for Rb, Sr and Y fission products. It was calibrated with monoenergetic electrons supplied by a magnetic conversion electron spectrometer for the energy range from 1.6 to 8 MeV. The energy calibration of the detector is linear with deviations less than 2 · 10−4, and the detector was recalibrated daily using precisely known gamma rays of90Rb. At the on-line fission product separator OSTIS at the ILL, Grenoble the endpoints ofβ-singles-spectra have been determined andQ-values deduced if possible also from beta-gamma coincidence measurements. The obtainedQ-values are:88Rb:(5 318±4) keV,89Rb: (4 510 ± 8) keV,90Rb: (6 578 ± 15) keV,91Rb: (5 857 ± 8) keV,91Sr: (2 704.5 ±3) keV,92Rb: (8 111 + 15) keV,93Rb:(7 485 ± 15) keV,94Rb: (10 304 ± 30) keV,94Sr: (3 512 ± 5) keV,94Y: (4 920 ±5)keV,95Rb: (8 947 ±100) keV,95Y: (4 445±5) keV,96Rb: (11 303±250) keV,96Sr: (5 413±20) keV,96Y: (7 120 ±50) keV,97Rb: (10 020 ±50) keV.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01473120
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