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Table 3 Standard deviation values (R) of dark noise together with information on PMT, AMP1, and HV values on (a) October 19, 2017, (b) January 22, 2018

From: A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)

  Ch1 (427.8) Ch2 (557.7) Ch3 (630) Ch4 (777.4) Ch5 (844.6)
a
 PMT* H11902-210 H11902-20 H11902-20 H11902-20 H11902-20
 AMP1(times) 100 10 10 100 1000
 HV (arbitrary unit) 75 75 80 80 75
 Dark noise (20 Hz) (R) 1.3 19.1 19.0 43.1 97.5
 Dark noise (1 s) (R) 0.7 5.3 4.8 10.4 23.6
b
 Dark noise (20 Hz) (R) 1.5 13.2 13.9 29.3 66.0
 Dark noise (1 s) (R) 1.1 2.8 2.9 6.3 14.6
  1. *Produced by Hamamatsu Photonics K.K