Difference between revisions of "Optics Calibration"

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[https://wiki.jlab.org/tegwiki/index.php/Installation_and_Commissioning#Optics_commissioning_runs <b>Back to Commissioning Page</b>]
 
[https://wiki.jlab.org/tegwiki/index.php/Installation_and_Commissioning#Optics_commissioning_runs <b>Back to Commissioning Page</b>]
 
==Run Info==
 
==Run Info==
 +
* With Raster '''Off''', the Maximum Beam Current on Multi-Foils, I_max = 10uA
 +
* With Raster '''ON''',  the Maximum Beam Current on Multi-Foils, I_max = 40uA
 
=== LHRS optics runs===
 
=== LHRS optics runs===
 
==== <b>Step L1: Procedure with Sieve-slit</b>====
 
==== <b>Step L1: Procedure with Sieve-slit</b>====
Line 45: Line 47:
 
     <td> 3.8 </td>
 
     <td> 3.8 </td>
 
     <td> 17 </td>
 
     <td> 17 </td>
−
     <td> </td>
+
     <td> Taken during the Production-Run</td>
 
   </tr>
 
   </tr>
  
Line 78: Line 80:
 
     <td>3.0 </td>
 
     <td>3.0 </td>
 
     <td>17 </td>
 
     <td>17 </td>
−
     <td> </td>
+
     <td>May not take this </td>
 
   </tr>
 
   </tr>
 
</table>
 
</table>
  
−
==== <b>Step L2: Delta Scan with Proton Elastic (with sieve slit)</b>====
+
==== <b>Step L2: Delta Scan with Proton Elastic </b>====
 +
* Note: Depending on the beam-time and quality, this run may be pushed to the Jan./2018 Runs.
 
<table border="1"  style="width:80%">
 
<table border="1"  style="width:80%">
 
   <tr>
 
   <tr>
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   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 106: Line 109:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 116: Line 119:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 126: Line 129:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 136: Line 139:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 148: Line 151:
 
=== RHRS optics runs===
 
=== RHRS optics runs===
 
==== <b>Step R1: Procedure with Sieve-slit</b>====
 
==== <b>Step R1: Procedure with Sieve-slit</b>====
−
<table border="1"  style="width:80%">
+
 
 +
<table border="1"  style="width:80%">
 
   <tr>
 
   <tr>
 
     <td>Run number</td>
 
     <td>Run number</td>
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     <td> </td>
 
     <td> </td>
 
     <td>Multi-foil carbon</td>
 
     <td>Multi-foil carbon</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>Off</td>
 
     <td>Off</td>
 +
    <td> 4.3 </td>
 +
    <td> 3.8 </td>
 +
    <td> 17 </td>
 
     <td> </td>
 
     <td> </td>
 +
  </tr>
 +
 
 +
<tr>
 
     <td> </td>
 
     <td> </td>
 +
    <td>Multi-foil carbon</td>
 +
    <td>In</td>
 +
    <td>On</td>
 +
    <td> 4.3 </td>
 +
    <td> 3.8 </td>
 +
    <td> 17 </td>
 
     <td> </td>
 
     <td> </td>
 +
  </tr>
 +
 +
<tr>
 
     <td> </td>
 
     <td> </td>
 +
    <td>Multi-foil carbon</td>
 +
    <td>Out</td>
 +
    <td>On</td>
 +
    <td> 4.3 </td>
 +
    <td> 3.8 </td>
 +
    <td> 17 </td>
 +
    <td>Taken during the Production-Run</td>
 
   </tr>
 
   </tr>
−
  <tr>
+
 
−
    <td> </td>
+
<tr>
−
    <td>15cm LH2</td>
 
−
    <td>Yes</td>
 
−
    <td>2 x 2 mm<SUP>2</SUP></td>
 
−
    <td> </td>
 
 
     <td> </td>
 
     <td> </td>
 +
    <td>Multi-foil carbon</td>
 +
    <td>In</td>
 +
    <td>Off</td>
 +
    <td>4.3 </td>
 +
    <td>3.0 </td>
 +
    <td>17 </td>
 
     <td> </td>
 
     <td> </td>
 +
  </tr> 
 +
 +
  <tr>
 
     <td> </td>
 
     <td> </td>
 +
    <td>Multi-foil carbon</td>
 +
    <td>In</td>
 +
    <td>On</td>
 +
    <td>4.3 </td>
 +
    <td>3.0 </td>
 +
    <td>17 </td>
 +
    <td>May not take this run </td>
 
   </tr>
 
   </tr>
 +
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
 
     <td>Multi-foil carbon</td>
 
     <td>Multi-foil carbon</td>
−
     <td>Yes</td>
+
     <td>Out</td>
−
     <td>Off</td>
+
     <td>On</td>
−
     <td> </td>
+
     <td>4.3 </td>
−
     <td> </td>
+
     <td>3.0 </td>
−
     <td> </td>
+
     <td>17 </td>
−
     <td> </td>
+
     <td></td>
 
   </tr>
 
   </tr>
 
</table>
 
</table>
−
==== <b>Step R2: Delta Scan with Proton Elastic (with sieve slit)</b>====
+
 
 +
==== <b>Step R2: Delta Scan with Proton Elastic </b>====
 +
* Note: Depending on the beam-time and quality, this run may be pushed to the Jan./2018 Runs.
 
<table border="1"  style="width:80%">
 
<table border="1"  style="width:80%">
 
   <tr>
 
   <tr>
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   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 214: Line 255:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
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   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 234: Line 275:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 244: Line 285:
 
   <tr>
 
   <tr>
 
     <td> </td>
 
     <td> </td>
−
     <td>15cm LH2</td>
+
     <td>H2 Gas</td>
−
     <td>Yes</td>
+
     <td>In</td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td>2 x 2 mm<SUP>2</SUP></td>
 
     <td> </td>
 
     <td> </td>
Line 251: Line 292:
 
     <td> </td>
 
     <td> </td>
 
     <td>Delta scan &Delta;P=+4%; </td>
 
     <td>Delta scan &Delta;P=+4%; </td>
−
  </tr>
 
−
</table>
 
−
 
−
==== <b>Step R3: Dummy Target Runs (with sieve slit)</b>====
 
−
<table border="1"  style="width:80%">
 
−
  <tr>
 
−
    <td>Run number</td>
 
−
    <td>Target</td>
 
−
    <td>Sieve</td>
 
−
    <td>Raster</td>
 
−
    <td>E<SUB>beam</SUB> [GeV]</td>
 
−
    <td>P<SUB>0</SUB> [GeV/c]</td>
 
−
    <td>&theta;<SUB>e</SUB> [deg]</td>
 
−
    <td>Comment</td>
 
−
  </tr>
 
−
  <tr>
 
−
    <td> </td>
 
−
    <td>15cm dummy</td>
 
−
    <td>Yes</td>
 
−
    <td>2 x 2 mm<SUP>2</SUP></td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> +4% delta scan setting</td>
 
−
  </tr>
 
−
</table>
 
−
====<b>Step R4: Proton Elastic Kinematics</b>====
 
−
<table border="1"  style="width:80%">
 
−
  <tr>
 
−
    <td>Run number</td>
 
−
    <td>Target</td>
 
−
    <td>Sieve</td>
 
−
    <td>Raster</td>
 
−
    <td>E<SUB>beam</SUB> [GeV]</td>
 
−
    <td>P<SUB>0</SUB> [GeV/c]</td>
 
−
    <td>&theta;<SUB>e</SUB> [deg]</td>
 
−
    <td>Comment</td>
 
−
  </tr>
 
−
  <tr>
 
−
    <td> </td>
 
−
    <td>Single-foil carbon</td>
 
−
    <td>No</td>
 
−
    <td>Off</td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
  </tr>
 
−
  <tr>
 
−
    <td> </td>
 
−
    <td>15cm dummy</td>
 
−
    <td>No</td>
 
−
    <td>2 x 2 mm<sup>2</sup></td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
  </tr>
 
−
  <tr>
 
−
    <td> </td>
 
−
    <td>15cm LH2</td>
 
−
    <td>No</td>
 
−
    <td>2 x 2 mm<sup>2</sup></td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
−
    <td> </td>
 
 
   </tr>
 
   </tr>
 
</table>
 
</table>
  
 
==Calibration==
 
==Calibration==

Latest revision as of 10:40, 1 December 2017

Optics Study Page (Back to Tritium-Main) Back to Commissioning Page

Run Info

  • With Raster Off, the Maximum Beam Current on Multi-Foils, I_max = 10uA
  • With Raster ON, the Maximum Beam Current on Multi-Foils, I_max = 40uA

LHRS optics runs

Step L1: Procedure with Sieve-slit

Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
Multi-foil carbon In Off 4.3 3.8 17
Multi-foil carbon In On 4.3 3.8 17
Multi-foil carbon Out On 4.3 3.8 17 Taken during the Production-Run
Multi-foil carbon In Off 4.3 3.0 17
Multi-foil carbon In On 4.3 3.0 17
Multi-foil carbon Out On 4.3 3.0 17 May not take this

Step L2: Delta Scan with Proton Elastic

  • Note: Depending on the beam-time and quality, this run may be pushed to the Jan./2018 Runs.
Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
H2 Gas In 2 x 2 mm2 Delta scan ΔP=-4%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=-2%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=0%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=+2%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=+4%;

RHRS optics runs

Step R1: Procedure with Sieve-slit

Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
Multi-foil carbon In Off 4.3 3.8 17
Multi-foil carbon In On 4.3 3.8 17
Multi-foil carbon Out On 4.3 3.8 17 Taken during the Production-Run
Multi-foil carbon In Off 4.3 3.0 17
Multi-foil carbon In On 4.3 3.0 17 May not take this run
Multi-foil carbon Out On 4.3 3.0 17

Step R2: Delta Scan with Proton Elastic

  • Note: Depending on the beam-time and quality, this run may be pushed to the Jan./2018 Runs.
Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
H2 Gas In 2 x 2 mm2 Delta scan ΔP=-4%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=-2%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=0%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=+2%;
H2 Gas In 2 x 2 mm2 Delta scan ΔP=+4%;

Calibration

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