Difference between revisions of "Run Plan"

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== Calibration ==
 
== Calibration ==
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*    Tune beam to 1 pass, Set HRS(L) and HRS(R).
+
*    Tune beam to 1 pass, Set HRSL(-) and HRSR(-) at 15 (-15) deg.
  
 
    
 
    
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*     Move the HRSs to 15 (-15) Deg. HRSs calibration C(e,e') (elastic) with/ without sleeves.  
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*     HRSs calibration with C(e,e') (elastic) with/ without sleeves.  
  
  
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*     Move HRS(R) to 12.5 deg, Set BigBite at 68 Deg.
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*     Move HRS(R) to 12.5 deg change polarity to HRSR(+), Set BigBite at 68 Deg.
  
 
    
 
    
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*      Continue calibration of BigBite H(e,e'p), D(e,e'p) and C(e,e'p) Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#H.28e.2Ce.27p.29_HRS.28L.29_and_BigBite A 4,5], [https://hallaweb.jlab.org/wiki/index.php/Kinematics#Full_acceptance_calibration_of_BigBite_C.28e.2Ce.27p.29 B 1,2] and [https://hallaweb.jlab.org/wiki/index.php/Kinematics#Full_acceptance_calibration_of_BigBite_d.28e.2Ce.27p.29 C1]  
 
*      Continue calibration of BigBite H(e,e'p), D(e,e'p) and C(e,e'p) Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#H.28e.2Ce.27p.29_HRS.28L.29_and_BigBite A 4,5], [https://hallaweb.jlab.org/wiki/index.php/Kinematics#Full_acceptance_calibration_of_BigBite_C.28e.2Ce.27p.29 B 1,2] and [https://hallaweb.jlab.org/wiki/index.php/Kinematics#Full_acceptance_calibration_of_BigBite_d.28e.2Ce.27p.29 C1]  
 +
 +
*      Move BigBite to backward angle (should allow HRSR at ~70 deg)
  
 
    
 
    
 
*      Put the Neutron array (without the lead wall) at 50 Deg and 15 meters from target. Calibration of the HAND with H(e,e'p) Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#H.28e.2Ce.27p.29_HRS.28L.29_and_Neutron_Array_for_protons D1].
 
*      Put the Neutron array (without the lead wall) at 50 Deg and 15 meters from target. Calibration of the HAND with H(e,e'p) Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#H.28e.2Ce.27p.29_HRS.28L.29_and_Neutron_Array_for_protons D1].
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−
 
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*    Move the HRSs according the Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#Quasi_Elastic_C.28e.2Ce.27p.29 G 1,2].
 
  
  
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*     Switch the polarity of HRSs.
+
*     Put the BigBite at 99 Deg (magnet on detector off) and HAND behind and install lead wall. Switch the polarity of HRSs to HRSL(+) and HRSR(-).
  
  
  
−
*    HAND neutron efficiency calibration. Put the BigBite at 99 Deg (magnet on detector off) and HAND behind. Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#d.28e.2Ce.27pn.29_x.3C1_HRS.28L.29.2C_HRS.28R.29_and_Neutron_Array E 1,2].
+
*    HAND neutron efficiency calibration.Kin [https://hallaweb.jlab.org/wiki/index.php/Kinematics#d.28e.2Ce.27pn.29_x.3C1_HRS.28L.29.2C_HRS.28R.29_and_Neutron_Array E 1,2].
  
  
−
*    Change set-up to BB and N-Array both at 99 Deg + Energy change 2 pass to 4 pass
+
*    Tune beam to 4 pass, switch HRSs polarity to HRSL(-) and HRSR(+).
 
    
 
    
  
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*    D(e,e'pn) X<1, Kin D1
 
  
 
==  End of Calibration  ==
 
==  End of Calibration  ==
 
    
 
    
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== Production ==
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*    D(e,e'pn) X>1, Kin ____
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*    SRC Run, low Momentum range, Kin _____
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*    SRC Run, High Momentum range, Kin ____
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Revision as of 01:32, 6 April 2010

Calibration

  • Tune beam to 1 pass, Set HRSL(-) and HRSR(-) at 15 (-15) deg.


  • HRSs calibration with C(e,e') (elastic) with/ without sleeves.


  • Move HRS(R) to 12.5 deg change polarity to HRSR(+), Set BigBite at 68 Deg.


  • Momentum scane for BigBite calibration, H(e,e'p) Kin A 1,2,3.


  • Energy change 1 pass to 2 pass.


  • Continue calibration of BigBite H(e,e'p), D(e,e'p) and C(e,e'p) Kin A 4,5, B 1,2 and C1
  • Move BigBite to backward angle (should allow HRSR at ~70 deg)


  • Put the Neutron array (without the lead wall) at 50 Deg and 15 meters from target. Calibration of the HAND with H(e,e'p) Kin D1.


  • Continue calibration of HRSs with quasi elastic scattering C(e,e'p) Kin G 1,2.


  • Put the BigBite at 99 Deg (magnet on detector off) and HAND behind and install lead wall. Switch the polarity of HRSs to HRSL(+) and HRSR(-).


  • HAND neutron efficiency calibration.Kin E 1,2.


  • Tune beam to 4 pass, switch HRSs polarity to HRSL(-) and HRSR(+).


  • Singles rates study


End of Calibration

Production

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