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arxiv: 0803.2195 · v1 · submitted 2008-03-14 · ⚛️ physics.ins-det

A Measurement of Photon Production in Electron Avalanches in CF4

A. Kaboth , J. Monroe , S. Ahlen , D. Dujmic , S. Henderson , G. Kohse , R. Lanza , M. Lewandowska
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A. Roccaro G. Sciolla N. Skvorodnev H. Tomita R. Vanderspek H. Wellenstein R. Yamamoto P. Fisher
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classification ⚛️ physics.ins-det
keywords chamberselectronmeasurementphotonproductionratiotimeavalanches
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This paper presents a measurement of the ratio of photon to electron production and the scintillation spectrum in a popular gas for time pro jection chambers, carbon tetrafluoride (CF4), over the range of 200 to 800 nm; the ratio is measured to be 0.34+/-0.04. This result is of particular importance for a new generation of dark matter time projection chambers with directional sensitivity which use CF4 as a fill gas.

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