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==== WCM ====

//OUTSIDE BTF LINE//\\
Two WCM are placed before the pulsed magnet (WCMTM01) and after SLTB001 (WCMTB01)\\
One WCM is installed at the end of the DHSTB002 dipole straight line (WCMTB02).\\

**BERGOZ ICT 122-070-05-1**\\
[[http://www.bergoz.com/index.php?option=com_content&view=article&id=29&Itemid=37|Bergoz site Link]]\\
{{:strutture:lnf:da:btf:diagnostica:wcm_bergoz.pdf|Manual}}
\\

**Current to charge conversion with QDC:**

After having performed a pedestal subtraction, the ADC value is converted to charge with this formula:\\

ADC(pede sub)/4095*FS(ch)*G= Q [pC]\\

where:\\
  * ADC(pede sub) = pedestal subtracted ADC value
  * FS(ch)= range in [pC] of the selected dual range channel  (100pC or 900pC, new version of V965)
  * Q is the charge expressed in pC
  * G=10(WCM btf), 20(WCM linac)

**Current to charge conversion with One electron:**

Put on peak the value of 
  * 0.819 for a 800pC 
  * 0.728 for 900pC
  * 6.552 for 100pC


and validate,\\
\\
the #ele control will measure the value of total integrated charge in unit of 10^7 electrons\\

**Current to charge conversion with oscilloscope:**

  -- Integrated Charge with measure reference bars (measure outputted by scope)= C [pV*s]
  -- Pedestal = F[pV*s] (same as signal measure, triggered with DHSTB001 in stby mode)
  -- Internal resistance = R[Ohm]
  -- Bergoz monitor calibration => Q(beam)/Q(out) @ 50 Ohm = g = 10(btf) 20(linac)
  -- Bunch pulse width = dt [ns]

Formula to obtain induced charge on WCM via scope:
  Q[pC]=g*[(C-F)/R]

Formula to obtain mean current from single bunches (To be compared with LINAC WCMTM001 in order to measure transport efficiency):
  I[mA]=  { g*(C[pVs]-F[pVs]) /50[Ohm]}/dt[ns]
    
  
Measure 20131213 on WCMTB002 (straight line) with pedestal subtracted (201312101258.ped) of value (63.02/2.17)(484.41/16.76)