Negative ion drift and diffusion in a TPC near 1 bar

C.J. Martoff; R. Ayad; M. Katz-Hyman; G. Bonvicini; A. Schreiner

doi:10.1016/j.nima.2005.08.103

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Negative ion drift and diffusion in a TPC near 1 bar

Journal article

Peer reviewed

Negative ion drift and diffusion in a TPC near 1 bar

C.J. Martoff, R. Ayad, M. Katz-Hyman, G. Bonvicini and A. Schreiner

Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, Vol.555(1), pp.55-58

15/12/2005

DOI: https://doi.org/10.1016/j.nima.2005.08.103

Abstract

Darkmatter

Diffusion

Negative ion drift

TPC

Drift velocity and longitudinal diffusion measurements are reported for a Negative Ion TPC (NITPC) operating with Helium + CS 2 gas mixtures at total pressures from 160 to 700 torr. Longitudinal diffusion at the thermal-limit was observed for drift fields up to at least 700 V/cm in all gas mixtures tested. The results are of particular interest in connection with mechanical simplification of the DRIFT direction-sensitive Dark Matter search, and for high energy physics experiments in which a low- Z , low density, gaseous tracking detector with no appreciable Lorentz drift is needed for operation in very high magnetic fields.

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Title: Negative ion drift and diffusion in a TPC near 1 bar
Creators - without role: C.J. Martoff - Temple University
R. Ayad - Temple University
M. Katz-Hyman - Temple University
G. Bonvicini - Wayne State University
A. Schreiner - Wayne State University
Publication Details: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, Vol.555(1), pp.55-58
Publisher: Elsevier B.V
Identifiers: 9934049308331
Academic Unit: University of Tabuk
Language: English
Resource Type: Journal article