Study of nonlinear relationship between position and drift time in cylindrical-type drift chamber and use of backgammon-shaped cathode pads

Citation
H. Tenzou et al., Study of nonlinear relationship between position and drift time in cylindrical-type drift chamber and use of backgammon-shaped cathode pads, IEEE NUCL S, 48(5), 2001, pp. 1672-1676
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
ISSN journal
0018-9499 → ACNP
Volume
48
Issue
5
Year of publication
2001
Pages
1672 - 1676
Database
ISI
SICI code
0018-9499(200110)48:5<1672:SONRBP>2.0.ZU;2-R
Abstract
A cylindrical-type drift chamber consists of an appropriate array of cylind rical single wire proportional counters and has a simple structure. It is s hown that a quadratic function reproduced the space-time relationship in th e cylindrical-type drift chamber filled with PR gas (Argon:Methane = 90:10) . The difference in the drift times in pair-cells is simply converted into the incident position of charged particles perpendicular to the anode wire using the quadratic function of the space-time relationship. Furthermore, t he quadratic function improves the position resolution. A backgammon patter n is employed for the cathode pad of the cylindrical drift chamber. The cyl indrical drift cell with a backgammon-shaped cathode pad gives the position resolution along the anode wire. The position resolution in one sigma alon g the anode wire is obtained to be 1.7 mm on average. The cylindrical-type drift chamber with backgammon-shaped cathode pad may be applied to a two-di mensional position sensitive detector with a compact structure and simple s ignal-processing electronics.