TY - GEN
T1 - First application of calorimetric low-temperature detectors in accelerator mass spectrometry
AU - Kraft, S
AU - Andrianov, V. A.
AU - Bleile, A
AU - Egelhof, Peter
AU - Golser, Robin
AU - Kiseleva, Anna
AU - Kiselev, Oleg
AU - Kutschera, Walter
AU - Meier, J P
AU - Priller, Alfred
AU - Shrivastava, A
AU - Steier, Peter
AU - Vockenhuber, Christof
N1 - Zeitschrift: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
DOI: 10.1016/j.nima.2003.11.221
Coden: NIMAE
Affiliations: Gesell. für Schwerionenforsch., Darmstadt, Germany; Institut für Physik, Johannes Gutenberg Universität, Mainz, Germany; VERA Laboratory, Inst. fur Isotopenforsch./Kernphys., Universität Wien, Wien, Austria
Adressen: Kraft, S.; Institut für Physik; Johannes Gutenberg Universität Mainz, Germany; email: [email protected]
Import aus Scopus: 2-s2.0-12144290791
PY - 2004
Y1 - 2004
N2 - For the first time, calorimetric low-temperature detectors were applied in accelerator mass spectrometry, a well-known method for determination of very small isotope ratios with high sensitivity. The aim of the experiment was to determine with high accuracy the isotope ratio of 236U/ 238U for several samples of natural uranium, 236U being known as a sensitive monitor for neutron flux. Measurements were performed at the VERA tandem accelerator at Vienna, Austria. The detectors consist of sapphire absorbers and superconducting transition edge thermometers operated at T? 1.5K. The relative energy resolution obtained for 17.39MeV 238U is ?E/E=4-9 × 10-3, depending on the experimental conditions. This performance enabled to substantially reduce background from neighbouring isotopes and to increase the detection efficiency. Due to the high sensitivity achieved, a value of 236U/ 238U=6.5×10-12 could be obtained, representing the smallest 236U/238U ratio measured until now. Œ 2003 Elsevier B.V. All rights reserved.
AB - For the first time, calorimetric low-temperature detectors were applied in accelerator mass spectrometry, a well-known method for determination of very small isotope ratios with high sensitivity. The aim of the experiment was to determine with high accuracy the isotope ratio of 236U/ 238U for several samples of natural uranium, 236U being known as a sensitive monitor for neutron flux. Measurements were performed at the VERA tandem accelerator at Vienna, Austria. The detectors consist of sapphire absorbers and superconducting transition edge thermometers operated at T? 1.5K. The relative energy resolution obtained for 17.39MeV 238U is ?E/E=4-9 × 10-3, depending on the experimental conditions. This performance enabled to substantially reduce background from neighbouring isotopes and to increase the detection efficiency. Due to the high sensitivity achieved, a value of 236U/ 238U=6.5×10-12 could be obtained, representing the smallest 236U/238U ratio measured until now. Œ 2003 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.nima.2003.11.221
DO - 10.1016/j.nima.2003.11.221
M3 - Contribution to proceedings
T3 - Nuclear Instruments & Methods in Physics Research. Section A. Accelerators, Spectrometers, Detectors, and Associated Equipment
SP - 63
EP - 66
BT - Proceedings of the 10th International Workshop on Low Temperature Detectors
PB - Elsevier BV, North-Holland
ER -