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A method for the background reduction of solid state detectors during low-flux periods

  • Author: Valtonen, E.
  • Publication: Proceedings of the 26th International Cosmic Ray Conference. August 17-25, 1999. Salt Lake City, Utah, USA. Under the auspices of the International Union of Pure and Applied Physics (IUPAP). Volume 6. Edited by D. Kieda, M. Salamon, and B. Dingus, p.220, 1999
  • Theoretical study
  • ADS link
  • Abstract: The pulse height analysis of the signals in traditional energetic particle telescopes provides a tool to separate a background arising from various factors from "genuine" particles. Commonly used methods, however, prove unsatisfactory at low intensity levels. A method based on the distribution of pulse heights of coincident signals in two detectors, approximating them by a 5-parameter function, is suggested. The method can effectively reduce the background at low-flux times as demonstrated for energetic particle intensity measurements by ERNE and EPHIN aboard SOHO during the recent solar activity minimum.

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