Title of article :
The Geiger discharge revisited Part IV.: The fast component
Author/Authors :
Wilkinson، نويسنده , , D.H، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
10
From page :
446
To page :
455
Abstract :
The mechanism of the self-quenching Geiger counter has been understood, in general terms, for over half a century. However, quantitatively, one aspect of the discharge has not been satisfactorily accounted for. This is the fraction of the signal that is “fast” in the sense of being contemporaneous with the avalanches that propagate the discharge, as opposed to the “slow” fraction that is due to the drift of the positive ions, produced in the avalanches, towards the cathode. The standard theory suggests that the fast fraction is of the percentage order whereas experimentally, as has also been known for half a century, it is of a few tens of percent. The resolution of the problem lies in consideration of the space-charge effects within individual avalanches following which the fast component is satisfactorily accounted for.
Keywords :
Geiger counter , Electron avalanche , Space-charge sheath
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
Serial Year :
1999
Journal title :
Nuclear Instruments and Methods in Physics Research Section A
Record number :
2183372
Link To Document :
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