Evaluation of well-type Ge(Li) detectors for low-level radiochemical analysis Page: 4 of 25
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Evaluation of Well-Type Ge(Li)
Detectors for Low-Level Radiochemical Analysis*
F. P. Brauer and W. A. Mitzlaff
Pacific Northwest Laboratories
Richland, Washington 99352
September 21, 1977
Well-type Ge(Li) detectors have been evaluated for low-level gamma-
ray spectrometry and radiochemical analyses. The detectors were found
to have good resolution, high peak-to-Compton ratios-and low backgrounds.
The use of an anticoincidence shield further improves the detector perfor-
mance. The detector efficiencies and backgrounds are compared with those
obtained with other Ge(Li) detector systems. The well detectors were
found to have better detection efficiencies and as low backgrounds as
either large coaxial detectors or opposed detector systems. -Sum-
coincidence effects are more pronounced in the well detector and use of
this feature is discussed. Applications which utilize the low-energy
response of the detector are described. Minimum detectable activity
levels were determined for several nuclides.
Well-type NaI(Tl) detectors have found wide applications in low-level
gamma-ray spectrometry and radiochemical analyses. This results from the
high efficiency and well-defined geometry of the well-type detector. Many
*This paper is based on work sponsored by. the Division of Basic Energy
Sciences and performed under U. S. Energy Research and Development
Administration, Contract EY-76-C-06-1830..
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Brauer, F. P. & Mitzlaff, W. A. Evaluation of well-type Ge(Li) detectors for low-level radiochemical analysis, article, September 1, 1977; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1196381/m1/4/: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.