Document Detail


Localization of activities in the human body with a whole-body counter.
MedLine Citation:
PMID:  17327238     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The whole-body counter of the Radiation Protection Unit at the ARC Seibersdorf research GmbH has two HP Ge-detectors for measuring radionuclides, which are internally deposited in the human body. The detector system has a scanning geometry, where one detector is placed below the bed and the other detector above the bed. The body counter is placed in a massive shielded chamber. This device is especially used for measuring radioactive exposed workers with the possibility of intake by inhalation and ingestion. In the most cases whole-body counters are calibrated with anthropomorphic phantoms where activity is homogenously distributed. However, in some cases radioactivity can be located as a 'Hot Spot' in an organ. The localisation of 'Hot spots' at least in one dimension was the topic of this work. Experiments were done by means of a water-filled bottle phantom where three point sources (137Cs, 133Ba and 60Co) were placed at different positions. Measurements show that these radionuclides can be located within 1.5 cm along the longitudinal axis of the phantom with activities for 137Cs of at least 240 Bq, 133Ba of at least 670 Bq and 60Co of at least 140 Bq.
Authors:
H Fischer; M Schlagbauer
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Publication Detail:
Type:  Journal Article     Date:  2007-02-27
Journal Detail:
Title:  Radiation protection dosimetry     Volume:  125     ISSN:  0144-8420     ISO Abbreviation:  Radiat Prot Dosimetry     Publication Date:  2007  
Date Detail:
Created Date:  2008-03-12     Completed Date:  2008-09-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8109958     Medline TA:  Radiat Prot Dosimetry     Country:  England    
Other Details:
Languages:  eng     Pagination:  488-91     Citation Subset:  IM    
Affiliation:
ARC Seibersdorf research GmbH, 2444 Seibersdorf, Austria. helmut.fischer@arcs.ac.at
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Austria
Biological Assay / instrumentation*
Computer Simulation
Environmental Exposure / analysis*
Equipment Design
Equipment Failure Analysis
Humans
Internationality
Models, Biological*
Radiation Dosage
Radiation Protection / instrumentation*
Radioisotopes / analysis*,  pharmacokinetics*
Relative Biological Effectiveness
Reproducibility of Results
Sensitivity and Specificity
Whole-Body Counting / instrumentation*
Chemical
Reg. No./Substance:
0/Radioisotopes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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