Optical readout of a two phase liquid argon TPC using CCD camera and THGEMs

@article{Mavrokoridis2014OpticalRO,
  title={Optical readout of a two phase liquid argon TPC using CCD camera and THGEMs},
  author={K. Mavrokoridis and F. A. Ball and J. Carroll and Manuel Lazos and K. J. McCormick and Nicholas Smith and C. Touramanis and J. D. Walker},
  journal={Journal of Instrumentation},
  year={2014},
  volume={9},
  pages={P02006 - P02006}
}
This paper presents a preliminary study into the use of CCDs to image secondary scintillation light generated by THick Gas Electron Multipliers (THGEMs) in a two phase LAr TPC. A Sony ICX285AL CCD chip was mounted above a double THGEM in the gas phase of a 40 litre two-phase LAr TPC with the majority of the camera electronics positioned externally via a feedthrough. An Am-241 source was mounted on a rotatable motion feedthrough allowing the positioning of the alpha source either inside or… 

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