Systematic issues old

1
Systematic issues old new
P. Kammel, convener

• Nature
• Gain and threshold stability
• Pile-up
• mSR
• accidentals
• Man made
• DAQ issues

4
5
2
Gain/ threshold stability
dN/N f(E)dE assume f(E)ltlt, ?f(E)dE1
Other questions rate difference
forward/backward, inner/outer
3
Pile-up
4
mSR
Unknowns in red
? 13.55 kHz/GaussMu 1.394 MHz/Gauss R(t)1a
P(t)?u
l fit N(f)N(fp), l- fit N(f)-N(fp),correct
l
5
Accidentals
exp (-l t) y exp (-x l t)
Other effects kicker induced time dependent
noise ion source oscillations (info Stefan Adam)
6
DAQ correlations

• Distortion of real spectra by DAQ induced
  inefficiency for two time correlated electrons or
  m/e
• Also for accidental spectra
• Try to eliminate and monitor

7
Others