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 '''On''',  the Maximum Beam Current on Multi-Foils, I_max = 20uA
 +
* With Raster '''Off''', 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>====

Revision as of 22:20, 30 November 2017

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

Run Info

  • With Raster On, the Maximum Beam Current on Multi-Foils, I_max = 20uA
  • With Raster Off, 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
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

Step L2: Delta Scan with Proton Elastic

Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=-4%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=-2%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=0%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=+2%;
15cm LH2 Yes 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
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

Step R2: Delta Scan with Proton Elastic

Run number Target Sieve Raster Ebeam [GeV] P0 [GeV/c] θe [deg] Comment
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=-4%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=-2%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=0%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=+2%;
15cm LH2 Yes 2 x 2 mm2 Delta scan ΔP=+4%;

Calibration