Log entry time 21:10:04 on February 17, 2011

Entry number 347393

 Times to get from target to point at which EDTM is injected

 Proton or Deuteron into L-HRS:

 
    0.490    0.968     0.930  GeV/c
   ------------------------------------
    0.463    0.718     0.444   Beta
   Proton   Proton    Deuteron
    173      112       180     TOF
     60       60        60     Signal cable from PMT
    ---      ---       ---
    233 ns   172 ns    240 ns

 Electron into R-HRS:


  87       TOF
  60       Signal cable from PMT
 ---
 147 ns

 Time difference between proton and electron signals to EDTM injection point:


      0.490    0.968     0.930  GeV
      ------------------------------
L-B =   86       25        93

With these numbers, we can use one setting for the delays: 93-25 = 68,

 68/2 = 34 or centered at 59 ns from the faster proton.
 

For the time being, I will keep the delay settings from the neutron 
efficiency run: 



t1_delay 128 8


since they were fine for both elastic protons and the neutron running.
However, I would like to check the EDTM timing versus the real 
coincidences and perhaps do a scan of the delay to verify that everything
is fine.