ACCOR:

erd = accor( erd )

accor linearizes the measured ramps to determine the actual input voltages V_o(t) applied on the detector:

• amplifier chain contains a high pass filter
• amplifier response for a constant voltage gradient input approaches assymptotically a constant value:

  dV(t)		V(t)		dVo(t)
  -------	+	------	=	-------
  dt		to		dt

• V_o(t): input voltage applied on the capacitance due to the photo current
• charge flowing through the detector is accumulated onto a capacitor, where it decays toward 0 Volt
• known RC time constants to from cal02 are used
• invert formula to get the input voltages V_o(t)

Cal-files:

• cal02:   RC time constants

Help topic: IA derive spd

Alternative: derive cal02 and cal02b with derive_pulse_shape