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[en] A portable Gamma spectrometer is presented that operates with a LEGe-Detector and reaches, by use of a special shielding of only 8 kg weight, a reduction of background Gamma radiation around 100 keV by a factor of 23 orders of magnitude. Results in determining the degree of enrichment for 235U are shown for several different samples. (orig.)
[de]
Es wird ein tragbares Gammaspektrometer mit LEGe-Detektor vorgestellt, bei dem durch eine spezielle Abschirmung bei nur 8 kg Gewicht des Detektors eine Reduzierung der Untergrund-Gammastrahlung im Bereich 100 keV um 23 Groessenordnungen erreicht wird. Fuer eine Anzahl unterschiedlichster Proben werden die Ergebnisse bei der Bestimmung des 235U-Anreicherungsgrads gezeigt. (orig.)Journal
[en] Optimising a gamma spectrometer for low background is an iterative process. With every step one takes, a new generation of background activities shows up. These various steps and successive activities are reviewed. Various experiments, performed to better understand the nature of these activities, are described and analysed. (orig.)
Journal
Nuclear Instruments and Methods in Physics Research. Section A; ISSN 0168-9002; 
; CODEN NIMAE; v. 312(1/2); p. 174-182
; CODEN NIMAE; v. 312(1/2); p. 174-182
[en] Canberra semiconductor produces germanium and silicon solid state detectors for nuclear radiation. Its business domain covers the production of standard detectors on an industrial basis, for industrial and applied physics applications, as well as the development of special detectors and electronics, tailored to the needs of a particular application, in science and research. There exists an important and beneficial interaction between these two activities. (orig.)
Journal
Nuclear Instruments and Methods in Physics Research, Section A; ISSN 0168-9002; ; CODEN NIMAE; v. 288(1); p. 287-289
; CODEN NIMAE; v. 288(1); p. 287-289
[en] Canberra Semiconductor produces germanium and silicon solid state detectors for nuclear radiation. There exists an increasing demand from industrial and scientific customers to detect weaker gamma rays above the spectral background in a shorter measuring time. This has led germanium detector manufactures to developments yielding lower detection limits and higher throughput rates. The new 2002 preamplifier has a shorter risetime yielding better timing resolutions and Gaussian timing peak shapes. (orig.)
Journal
[en] The new generation of elementary particle and nuclear physics experiments demand instrumentation with a more precise spatial resolution and a better and faster energy response. Nuclear physics and space experiments need position sensitive pad detectors having very thin entrance windows while high energy physics and medical applications use fast microstrip or drift detectors. Silicon pixel detectors can be improved by implementing integrated electronics on it. They allow a better X-ray energy resolution and are also used in hybrid photocathode tubes for faster timing and larger dynamic range
Source
James, R.B. (ed.) (Sandia National Labs., Livermore, CA (United States)); Schlesinger, T.E. (ed.) (Carnegie Mellon Univ., Pittsburgh, PA (United States)); Siffert, P. (ed.) (Lab. PHASE/CNRS, Strasbourg (France)); Dusi, W. (ed.) (Inst. TESRE/CNR, Bologna (Italy)); Squillante, M.R. (ed.) (Radiation Monitoring Devices, Inc., Watertown, MA (United States)); O'Connell, M. (ed.) (Dept. of Energy, Washington, DC (United States)); Cuzin, M. (ed.) (LETI/CEA, Grenoble (France)); Materials Research Society symposium proceedings, Volume 487; 681 p; ISBN 1-55899-392-4; ; 1998; p. 411-421; Materials Research Society; Warrendale, PA (United States); 1997 fall meeting of the Materials Research Society; Boston, MA (United States); 1-5 Dec 1997; ISSN 0272-9172; ; Also available from Materials Research Society, 506 Keystone Drive, Warrendale, PA 15086 (United States) $71.00
; 1998; p. 411-421; Materials Research Society; Warrendale, PA (United States); 1997 fall meeting of the Materials Research Society; Boston, MA (United States); 1-5 Dec 1997; ISSN 0272-9172; ; Also available from Materials Research Society, 506 Keystone Drive, Warrendale, PA 15086 (United States) $71.00
[en] The absolute beta branchings from the 103Cd decay to the ground state of 103Ag and from 103Ag to the ground state of 103Pd have been measured. The deduced log ft values indicate the presence of the gsub(7/2 +) neutron shell-model orbital in the 25+ ground state of 103Cd and in various states in 103Pd. A simple core plus particle coupling is able to account for the measured admixtures. (author)
Journal
Journal of Physics. G, Nuclear Physics; ISSN 0305-4616; ; v. 6(10); p. 1283-1290
; v. 6(10); p. 1283-1290
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