Further studies of electron avalanche gain in liquid argon

Kim J., Dardin S., Kadel R., Kadyk J., Jackson K., Peskov V., ...More

IEEE Nuclear Science Symposium/Medical Imaging Conference (NSS/MIC), Norfolk, England, 10 - 16 November 2002, pp.557-561 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/tns.2003.815139
  • City: Norfolk
  • Country: England
  • Page Numbers: pp.557-561
  • Bursa Uludag University Affiliated: No

Abstract

Previously [1] we showed how small admixtures of xenon (Xe) stabilize electron avalanches in liquid Argon (LAr). We have measured the positive charge carrier mobility in LAr with small admixtures of Xe to be 7.0 x 10(-3) cm(2)/Vsec, in approximate agreement with the mobility measured in pure LAr, and consistent with holes as charge carriers. We have measured the concentration of Xe actually dissolved in the liquid and compared the results with expectations based on the amount of Xe gas added to the LAr. We also have tested LAr doped with krypton to investigate the mechanism of avalanche stabilization.