Difference between revisions of "Run Plan"
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7. <span style="color:#ff0000"> 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].</span> | 7. <span style="color:#ff0000"> 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].</span> | ||
| + | |||
| + | == End of Calibration == | ||
| + | |||
| + | == Production == | ||
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| − | + | * Singles rates study | |
| − | + | 8. <span style="color:#ff0000">D(e,e'pn), Establish triple coincidence at x>1 (Kin Pmiss = 500 MeV/c) </span> | |
| − | == | + | |
| − | + | 9. <span style="color:#ff0000">4He(e,e'pp)/(e,e'pn), production, Pmiss = 500 MeV/c Kin K2 </span> | |
| − | == | + | |
| + | |||
| + | 10. <span style="color:#ff0000">4He(e,e'pp)/(e,e'pn), production, Pmiss = 625 MeV/c Kin K3 </span> | ||
| + | |||
| + | |||
| + | 11. <span style="color:#ff0000">4He(e,e'pp)/(e,e'pn), production, Pmiss = 755 MeV/c Kin K4 </span> | ||
| + | |||
| + | |||
| + | 12. <span style="color:#ff0000">4He(e,e'pp)/(e,e'pn), production, Pmiss = 875 MeV/c Kin K5 </span> | ||
| + | |||
| + | |||
| + | 13. <span style="color:#ff0000">4He(e,e'pp)/(e,e'pn), production, Pmiss = 400 MeV/c Kin K1 </span> | ||
Revision as of 14:15, 26 April 2010
Calibration
- Tune beam to 1 pass, Set HRSL(-) and HRSR(-) at 15 (-15) deg.
1. 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.
2. Momentum scane for BigBite calibration, H(e,e'p) Kin A 1,2,3.
- Energy change 1 pass to 2 pass.
3. 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.
4. Calibration of the HAND with H(e,e'p) Kin D1.
5. 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(-).
6. Continue calibration of HRSs with quasi elastic scattering C(e,e'p) Kin G 3,4
7. HAND neutron efficiency calibration.Kin E 1,2.
End of Calibration
Production
- Tune beam to 4 pass, switch HRSs polarity to HRSL(-) and HRSR(+).
- Singles rates study
8. D(e,e'pn), Establish triple coincidence at x>1 (Kin Pmiss = 500 MeV/c)
9. 4He(e,e'pp)/(e,e'pn), production, Pmiss = 500 MeV/c Kin K2
10. 4He(e,e'pp)/(e,e'pn), production, Pmiss = 625 MeV/c Kin K3
11. 4He(e,e'pp)/(e,e'pn), production, Pmiss = 755 MeV/c Kin K4
12. 4He(e,e'pp)/(e,e'pn), production, Pmiss = 875 MeV/c Kin K5
13. 4He(e,e'pp)/(e,e'pn), production, Pmiss = 400 MeV/c Kin K1
