Julie Roche<br>
December 17, 09<br><p>

<center>
<b> Run plan for DVCS Fall 2010</b><br>
Proton and Deuterium target<br>
</center>
<p>
&nbsp; <p>
<b>Beam request</b><br>
beam intensity = 10 uA (LH2) and 4 uA (LD2) <br>
targets : 15 cm LH2 and LD2<br>
<ul>
  <li> proton: 400h (production with 3 beam energies 6 (100 h), 4.8
  (240 h)  and 3.6 (60h)  GeV) + 72h (calib) + 72h (curring)
  <li> neutron: 400h (production at 2 beam energies: 6 and 4.8 GeV)
  <li> PAC days to calendar days (0.5 efficiency): 872*2+ 72= 1816
  hours = 76 days.
</ul>



<b>Accelerator run plan </b>
<ul>
  <li> Install : May 25 - Sept 3
  <li> Restore : Sept 4 - Sept 5 (Saturday-Sunday)
  <li> Commissionning : Sept 6 -- Sept 13 (one week)
  <li> Production : Sept 14 - Nov 23 (41 days : 5 passes  and 30 days
  : 4 passes)
  <li> Thanks-giving break : Nov 24 - Nov 28
  <li> Restore : Nov 29 (Monday)
  <li> Production: Nov 30 - Dec 7 (8 days : 4 passes)
  </ul>
41+38=79 days.<br>
5 passes = 5.56 GeV, polarization = 75.5% * p<SUB>max</SUB>= 64% longitudinal<br>
4 passes = 4.46 GeV, polarization = 79.9% * p<SUB>max</SUB>= 68% longitudinal <br>

<p>
&nbsp; <p>  
<b>Kinematics</b><br>
  <ul>
    <li> Kine 1:
    <ul>
      <li>Kine 1-6-p: k=6 GeV, k'=3.78, te=14.77, tc=22.3: 20 h
      <li>Kine 1-3-p: k=3.6 GeV, k'=1.42, te=31.89, tc=16.89: 60 h
    </ul>
    <li> Kine 2:
    <ul>
      <li> Kine 2-6-p : k=6 GeV, k'=3.19, te=18.13, tc=18.45: 30 h
      <li> Kine 2-6-n : k=6 Gev, k'=3.19, te=18.13, tc=18.45: 200 h
      <li> Kine 2-4-p : k=4.8 GeV, k'=2, te=25.6, tc=16.2: 90 h
      <li> Kine 2-4-n : k=4.8 GeV, k'=2, te=25.6, tc=16.2: 200 h
    </ul>
    <li> Kine 3:
    <ul>
      <li> Kine 3-6-p : k=6 GeV, k'=2.6, te=22.2, tc=16.2: 50 h
      <li> Kine 3-4-p : k=4.8 GeV, k'=1.4, te=32.2, tc=16.2: 150 h
    </ul>
  </ul>

  Timeline
  <ul>
    <li> Kine 2-6-n and Kine 2-6-p
    <li> Kine 1-6-p 
    <li> Kine 3-6-p
    <li> Kine 2-4-n and Kine 2-4-p 
    <li> Kine 1-3-p
    </ul>
<p>
&nbsp; <p>  
<b>Commissionning goals</b><br>  
<ul>
  <li> Beamline:
       <ul>
	 <li> Transport beam through the Hall:
	 <ul>
	   <li>Do we really want to use the Compton?
	   <li>What do we want for the intrisic beam size?
	   <li> What is a good beam for us?
	 </ul>
	 <li> Raster : which size?
	 <li> Beam intensity : use unser (noise 0.2 uA over 4 uA= 5%,
	 stated lumi precision=1%)
	 <li> Target :
	 <ul>
	   <li> Do we want to use solid targets (target cell wall, optics target)
	   <li> Target boiling : use anode current measurement from
  the calorimeter
	 </ul>
       </ul>
       <li>HRS:
       Negative polarity, DIS data.
       <ul>
	 <li> Detector efficiency?
	 <li> Sieve slit data?
       </ul>
       <li> Calorimeter:
       <ul>
	 <li> Gain calibration: elastic/pi0 mass?
       </ul>
       <li> Electronic/DAQ:
       <ul>
	 <li> Timing du trigger
	 <li> Test of calo trigger  
	 <li> Test of the HRS-Calo trigger
	 <li> Estimate pile-up in the ARS.
	 <li> Measure dead time  of the trigger system (HRS+calo) by
  taking data at different beam current. 
     </ul>
   </ul>
<p>
&nbsp; <p>  
<b> Production </b>
<ul>
  <li> For Kines 2: interleave proton and neutron data taking.
  <li> Monitor the anode current of the pmts of the calorimeter, check
  for 20% decrease.
  <li> Gain calibration ?
  
</ul>