FADC response function

• A(x) = a·x / (1-b·x) Þ ¶A/¶b = A2/a

• 1/Q·¶Q/¶b = Q·S/a, S depends on pulse shape (from 1/Nint for rectangle to 1.0 for d-function, f(Q) ?)

• ¶Z/¶b = 0.5·Z·(1-(Z/L)2)·Q·S/a

• Interpretation of charge dependence of effective wire length as wrong linearization parameter b:

  • '722' ® '755' (b: 0.00282 ® 0.00295)
  • DQ/Q = few % for mip, few 10% for high ion. particle