The correction of systematic image deformations inherent to two-dimensional proportional counters

Two-dimensional backgammon configuration and multiwire gas proportional counters have been in use for decades in the field of x-ray physics for high-precision or high-flux experiments. Systematics inherent to this type of detector lead to image distortions that are often overlooked or extremely diff...

Full description

Saved in:
Bibliographic Details
Published in:Measurement science & technology 2005-11, Vol.16 (11), p.2280-2286
Main Authors: Kinnane, Mark N, Kimpton, Justin A, de Jonge, Martin D, Makonyi, Karoly, Chantler, Christopher T
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two-dimensional backgammon configuration and multiwire gas proportional counters have been in use for decades in the field of x-ray physics for high-precision or high-flux experiments. Systematics inherent to this type of detector lead to image distortions that are often overlooked or extremely difficult to quantify. They are usually seen as intrinsic to the detector performance, leading to loss of resolution, linearity and signal-to-noise ratio. This work presents the signature, cause and resolution of several key distortions. The physics of the breakdown between the anode and cathode, false event position reconstruction due to the electronic detector response, and the effect of asymmetric field lines between the anode and cathode are developed. The position resolution of these types of detectors is demonstrated to be comparable to a charge-coupled device when used in the same experimental configuration.
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/16/11/021