Study of Cosmic Ray Impact on Planck/HFI Low Temperature Detectors

  title={Study of Cosmic Ray Impact on Planck/HFI Low Temperature Detectors},
  author={Antoine R. Miniussi and J-L. Puget and Warren Albert Holmes and Guillaume Patanchon and A. Catalano and Yannick Giraud-H{\'e}raud and François Pajot and Michel Piat and Laurent Vibert},
  journal={Journal of Low Temperature Physics},
Once that the focal plane of the HFI instrument of the Planck mission (launched in May 2009) has reached operational temperature, we have observed the thermal effect of cosmic ray interaction with the Planck satellite, located at Lagrangian point L2. When a particle hits a component of the bolometers (e.g.: thermometer, grid or wafer) composing the focal plane of HFI, a thermal spike (called glitch), due to deposited energy, is observed. Processing these data revealed another effect due to high… 

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