Document Detail


Simple active method for reducing magnetic interference in a thermoelectrically cooled photomultiplier tube.
MedLine Citation:
PMID:  18447518     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We present a simple modification for thermoelectrically cooled photomultiplier tube (PMT) assemblies that eliminates the magnetic interference between the peltier element and the PMT. An active compensation is accomplished by forming current loops of the wires of the peltier element and placing them in such a way that they eliminate the interfering magnetic field. It is demonstrated that the improved system reduces measurement errors of the order of 1% to statistical noise at the level of 0.07%.
Authors:
Petri Kärhä; Teemu Jaakkola
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  79     ISSN:  0034-6748     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-05-01     Completed Date:  2008-07-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  043102     Citation Subset:  -    
Affiliation:
Metrology Research Institute, Helsinki University of Technology, P.O. Box 3000, FI-02015 TKK, Espoo, Finland. petri.karha@tkk.fi
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