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PERFORMANCE EVALUATION OF SIGNAL CONDITIONING BOARDS AND SIMULATION OF THE IMPACT OF ELECTRONICS NOISE ON THE DEAP-3600 DARK MATTER DETECTOR

  • Author / Creator
    Chouinard, Rhys Timon
  • The Dark matter Experiment with Argon and Pulse shape discrimination (DEAP-3600) aims to detect the interactions of Weakly Interacting Massive Particles colliding with the nuclei of argon atoms. As particles interact with the argon in the DEAP-3600 vessel, scintillation light is emitted and detected by 255 photomultiplier tubes (PMTs) surrounding the target volume. Photons reaching the PMTs are converted into electrical pulses and sent along a data processing chain. The electronics are designed to maximise the detection of individual and multiple photon pulses, which is paramount for accurate particle identification. The Signal Conditioning Boards (SCBs) are electrical devices designed for DEAP-3600 to optimise single photoelectron detection, and maximise the signal to noise ratio. Versions of the SCBs were tested and improved to ensure the necessary signal to noise ratio was obtained. The impact of electronics noise on detector performance was studied.

  • Subjects / Keywords
  • Graduation date
    2013-06
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R3R98T
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Physics
  • Supervisor / co-supervisor and their department(s)
    • Grant, Darren (Physics)
  • Examining committee members and their departments
    • Heinke, Craig (Physics)
    • Jans, Hans-Sonke (Oncology)
    • Gingrich, Doug (Physics)