Sample changer mechanism for radioactive samples in gamma counter for use in mass survey
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United States of America Patent
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Jun 1, 1993
Grant Date -
N/A
app pub date -
Sep 23, 1991
filing date -
Mar 22, 1989
priority date (Note) -
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Abstract
The invention relates a sample changer mechanism for radioactive samples in gamma counter for use in mass survey comprising two or more well-type detectors (56). The changer mechanism comprises a lifting device (40) for the simultaneous moving several samples (10) from the transfer unit (60) to the measuring unit (50) which includes a detector for each simultaneously measured sample. According to the invention the detectors (56) in the measuring unit (50) are on the same horizontal plane and are situated in at least two rows placed at intervals so that samples (10) need to be moved in the horizontal plane in one direction only without deviating in lateral direction i.e. the distance of the detectors from each other in the transverse direction, relatively to the transfer movement, equals the distance of the sample containers (17) from each other in the cassette (11).
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