TITLE

Induction charge detector with multiple sensing stages

AUTHOR(S)
Gamero-Castaño, Manuel
PUB. DATE
April 2007
SOURCE
Review of Scientific Instruments;Apr2007, Vol. 78 Issue 4, p043902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An induction charge detector yields the net charge and the time of flight of a particle. The unique ability to independently measure these two parameters sets apart this rather simple detection technique. The main shortcoming of this instrument is its high charge detection limit, resulting from the intrinsic noise of the detector electronics and the low signal associated with the charge to measure. The goal of the present work is to lower the detection limit of this detector. This article describes an induction charge detector whose main novelty is a sequence of aligned cylindrical electrodes for measuring the charge of a particle n times. In a time domain analysis, this feature reduces both the detection limit and the standard error of the charge measurement by factors of 2 and n. More importantly, sensing stages could be added to arbitrarily lower the detection limit in a frequency domain analysis.
ACCESSION #
25684716

 

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