Winter 2016 optic plans
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Revision as of 22:16, 9 February 2016 by Jroche (Talk | contribs) (New page: LHRS DAQ: S2+Cer, Use LHRNEW for DAQ configuration<br> E<SUB>beam</SUB>= 2.301 GeV<br> LHRS θ<SUB>e</SUB>=16.5 deg <br> <br> <br> <br> ==== Procedure with Sieve-s...)
LHRS DAQ: S2+Cer, Use LHRNEW for DAQ configuration
Ebeam= 2.301 GeV
LHRS θe=16.5 deg
==== Procedure with Sieve-slit (DIS) ====
P0= 1.0 [GeV/c] (DIS)
Q2= 0.19 GeV2
W=1.77 GeV
| Target | LEFT Q1 Current [A] | estimated Rate [Hz] at 20 μA | estimated hours at 20 μA | actual Rate [Hz] at 20 μA | run number | # of events in the run |
| Optics | 752 (tuned) | 300 | 1h (or at least 100k events) |   |   |   |
| Optics | 677 (0.9 detuned) | 300 | 1h (or at least 100k events) |   |   |   |
| Optics | 602 (0.8 detuned) | 300 | 1h (or at least 100k events) | |||
| Optics | 496 (0.66 detuned) | 300 | 1h (or at least 100k events) | |||
| 4 cm Dummy | 752 (tuned) | 160 | 45 mn (or at least 50k events) | |||
| 4 cm Dummy | 677 (0.9 detuned) | 160 | 45 mn (or at least 50k events) | 4 cm Dummy | 602 (0.8 detuned) | 160 | 45 mn (or at least 50k events) |
| 4 cm Dummy | 496 (0.66 detuned) | 160 | 45 mn (or at least 50k events) | |||
| C single foil | 752 (tuned) | 60 | 20 mn (or at least 72k events) |   |   |   |
| C single foil | 677 (0.9 detuned) | 60 | 20mn (or at least 72k events) |   |   |   |
| C single foil | 602 (0.8 detuned) | 60 | 20m (or at least 72k events) | |||
| C single foil | 496 (0.66 detuned) | 60 | 20mn (or at least 72k events) | |||
| 15 cm LH2 | 752 (tuned) | 780 | 20 min (or at least 72k events) | |||
| 15 cm LH2 | 677 ( 0.9 detuned) | 780 | 20 min (or at least 72k events) | |||
| 15 cm LH2 | 602 ( 0.8 detuned) | 780 | 20 min (or at least 72k events) | |||
| 15 cm LH2 | 496 (0.66 detuned) | 780 | 20 min (or at least 72k events) | |||
| 200 μm tungsten wire | 752 (tuned) | 26.5 (central hole only) | 1h (dictated by Gmp) |
==== Delta Scan with Proton Elastic ( no sieve) ====
The LHRS goes to a new higher momentum setting which means Q2 and Q3 need to
be cycled.
LHRS θe=16.5 deg
Rate: 252 kHz at 20 μA YES 200 KHZ !!!!!
Run duration: about 1 s before the WC burn out !!
| k' (GeV) | LEFT Q1 Current [A] | ΔP (%) | run number | number of trigger |
| 2.02 | 1517 | -4% | ||
| 2.02 | 1365 (0.9 detuned) | -4% | ||
| 2.02 | 1214 (0.8 detuned) | -4% | ||
| 2.02 | 1001 (0.66 detuned) | -4% | ||
| 2.06 | 1549 | -2% | ||
| 2.06 | 1394 (0.9 detuned) | -2% | ||
| 2.06 | 1239 (0.8 detuned) | -2% | ||
| 2.06 | 1022 (0.66 detuned) | -2% | ||
| 2.1 | 1580 | 0 | ||
| 2.1 | 1422 (0.9 detuned) | 0 | ||
| 2.1 | 1264 (0.8 detuned) | 0 | ||
| 2.1 | 1043 (0.66 detuned) | 0 | ||
| 2.14 | 1612 | +2% | ||
| 2.14 | 1451 (0.9 detuned) | +2% | ||
| 2.14 | 1401 (0.8 detuned) | +2% | ||
| 2.14 | 1064 (0.66 detuned) | +2% | ||
| 2.18 | 1643 | +4% | ||
| 2.18 | 1479 (0.9 detuned) | +4% | ||
| 2.18 | 1314 (0.8 detuned) | +4% | ||
| 2.18 | 1085 (0.66 detuned) | +4% |
==== Carbon elastic ( no sieve) ====
The LHRS goes to a new momentum setting which means Q2 and Q3 need to
be cycled.
LHRS θe=16.5 deg
P0= 2.281 [GeV/c] (super-elastic)
Rate: 1Hz ?? at 20 μ Single Carbon foil.
2 hours.
