A Measurement of Photon Production in Electron Avalanches in CF4
arXiv:0803.2195 · doi:10.1016/j.nima.2008.03.120
Abstract
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.
19 pages, including appendix. 8 figures