Difference between revisions of "Production Run Plan R-HRS"
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(→Proton Elastic Kinematics) |
(→Proton Elastic Kinematics) |
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* If you need to increase the spectrometer momentum setting, make sure you cycle Q2 and Q3 as per the cycling procedure. | * If you need to increase the spectrometer momentum setting, make sure you cycle Q2 and Q3 as per the cycling procedure. | ||
* Elastic electron rates assume 20 μA on 15 cm LH2 target, 5 mSr acceptance. | * Elastic electron rates assume 20 μA on 15 cm LH2 target, 5 mSr acceptance. | ||
| − | * Use the following prescale factors: ps1=1, ps2=1, ps3=1, ps8=100. All other triggers should have zero prescale factor. | + | * Use the following prescale factors: ps1=1, ps2=1, ps3=1, ps8=100. All other triggers should have zero prescale factor. |
| + | * For the optics pointing run, decrease the spectrometer momentum to 0.85 GeV/c. The right dipole will need about 1.5 hours to settle. | ||
| + | * Take one hour on the optics target. | ||
| + | * After the optics run is completed, then increase the spectrometer momentum back to the elastic setting. <br> | ||
| + | Make sure to cycle the right Q2 and Q3 when increasing the momentum. | ||
| + | * The 15 cm dummy runs need to be taken at the elastic setting. So keep the momentum as is for this run. | ||
* <b>A GMp expert will check the data quality.</b> | * <b>A GMp expert will check the data quality.</b> | ||
| + | <br> | ||
| − | * <b> | + | * <b>5th Pass (E<SUB>beam</SUB> = 11.0 GeV)</b> Time estimate: 39 days @ 20 μA |
| − | + | ||
<table border="1" style="width:80%"> | <table border="1" style="width:80%"> | ||
<tr> | <tr> | ||
| Line 17: | Line 22: | ||
<td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | <td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | ||
<td> Electron Rate [Hz] at 20 μA</td> | <td> Electron Rate [Hz] at 20 μA</td> | ||
| − | <td> | + | <td><b>PAC days</b> at 20 μA</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>15 cm LH2</td> | <td>15 cm LH2</td> | ||
<td>2 x 2 mm<sup>2</sup></td> | <td>2 x 2 mm<sup>2</sup></td> | ||
| − | <td> | + | <td>11.021</td> |
| − | <td> | + | <td>2.204</td> |
| − | <td> | + | <td>48.74</td> |
| − | <td> | + | <td>16.54</td> |
| − | <td> | + | <td>0.003</td> |
| − | <td> | + | <td>38 (for 10k events)</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Optics</td> | <td>Optics</td> | ||
<td>Off</td> | <td>Off</td> | ||
| − | <td> | + | <td>11.021</td> |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
<td>0.85</td> | <td>0.85</td> | ||
| − | <td> | + | <td>48.74</td> |
| − | <td> | + | <td>6.38</td> |
| − | <td>4. | + | <td>4.4</td> |
| − | <td> | + | <td>1 hour (for 16k events) </td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td>15 cm Dummy | + | <td>15 cm Dummy</td> |
| − | + | <td>2 x 2 mm<sup>2</sup></td> | |
| − | <td> | + | <td>11.021</td> |
| − | <td> | + | <td>2.204</td> |
| − | <td> | + | <td>48.74</td> |
| − | <td> | + | <td>16.54</td> |
| − | <td> | + | <td>----</td> |
| − | <td> | + | <td>1 hour</td> |
</tr> | </tr> | ||
</table> | </table> | ||
| − | |||
| − | |||
<br> | <br> | ||
| Line 74: | Line 67: | ||
<td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | <td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | ||
<td> Electron Rate [Hz] at 20 μA</td> | <td> Electron Rate [Hz] at 20 μA</td> | ||
| − | <td> days at 20 μA</td> | + | <td><b>PAC days</b> at 20 μA</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| Line 85: | Line 78: | ||
<td>0.018</td> | <td>0.018</td> | ||
<td>21 (for 32k events)</td> | <td>21 (for 32k events)</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>Optics</td> | ||
| + | <td>Off</td> | ||
| + | <td>8.841</td> | ||
| + | <td>0.85</td> | ||
| + | <td>48.74</td> | ||
| + | <td>5.12</td> | ||
| + | <td>4.9</td> | ||
| + | <td>1 hour (for 17k events)</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
| Line 94: | Line 97: | ||
<td>12.65</td> | <td>12.65</td> | ||
<td>----</td> | <td>----</td> | ||
| − | <td></td> | + | <td>1 hour</td> |
</tr> | </tr> | ||
</table> | </table> | ||
<br> | <br> | ||
| − | * <b> | + | * <b>2nd Pass (E<SUB>beam</SUB> = 4.5 GeV)</b> Time estimate: 7 hours @ 20 μA<br> |
| + | |||
<table border="1" style="width:80%"> | <table border="1" style="width:80%"> | ||
<tr> | <tr> | ||
| Line 109: | Line 113: | ||
<td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | <td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | ||
<td> Electron Rate [Hz] at 20 μA</td> | <td> Electron Rate [Hz] at 20 μA</td> | ||
| − | <td> | + | <td><b>PAC hours</b> at 20 μA</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>15 cm LH2</td> | <td>15 cm LH2</td> | ||
<td>2 x 2 mm<sup>2</sup></td> | <td>2 x 2 mm<sup>2</sup></td> | ||
| − | <td> | + | <td>4.481</td> |
| − | <td> | + | <td>1.706</td> |
| − | <td>48. | + | <td>48.75</td> |
| − | <td> | + | <td>5.21</td> |
| − | <td> | + | <td>2.4</td> |
| − | <td> | + | <td>4 (for 35k events)</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>15 cm Dummy</td> | <td>15 cm Dummy</td> | ||
<td>2 x 2 mm<sup>2</sup></td> | <td>2 x 2 mm<sup>2</sup></td> | ||
| − | <td> | + | <td>4.481</td> |
| − | <td> | + | <td>1.706</td> |
| − | <td>48. | + | <td>48.75</td> |
| − | <td> | + | <td>5.21</td> |
| − | <td> | + | <td>0.4</td> |
| − | <td></td> | + | <td>2.5 (for 3.6k events)</td> |
</tr> | </tr> | ||
</table> | </table> | ||
<br> | <br> | ||
| − | + | * <b>2nd Pass (E<SUB>beam</SUB> = 4.5 GeV)</b> Time estimate: 12 hours @ 20 μA<br> | |
| − | * <b>2nd Pass (E<SUB>beam</SUB> = 4.5 GeV)</b> Time estimate: | + | |
<table border="1" style="width:80%"> | <table border="1" style="width:80%"> | ||
| Line 145: | Line 148: | ||
<td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | <td>Q<SUP>2</SUP> [GeV<SUP>2</SUP>]</td> | ||
<td> Electron Rate [Hz] at 20 μA</td> | <td> Electron Rate [Hz] at 20 μA</td> | ||
| − | <td> hours at 20 μA</td> | + | <td><b>PAC hours</b> at 20 μA</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| Line 151: | Line 154: | ||
<td>2 x 2 mm<sup>2</sup></td> | <td>2 x 2 mm<sup>2</sup></td> | ||
<td>4.481</td> | <td>4.481</td> | ||
| − | <td>1. | + | <td>1.547</td> |
| − | <td> | + | <td>52.91</td> |
| − | <td>5. | + | <td>5.5</td> |
| − | <td> | + | <td>1.4</td> |
| − | <td> | + | <td>7 (for 35k events)</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| − | <td>15 cm Dummy</td> | + | <td>Optics</td> |
| + | <td>Off</td> | ||
| + | <td>4.481</td> | ||
| + | <td>1.547</td> | ||
| + | <td>52.91</td> | ||
| + | <td>5.5</td> | ||
| + | <td>0.23</td> | ||
| + | <td>0.5 (for 400 events)</td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>Optics<sup>%</sup></td> | ||
| + | <td>Off</td> | ||
| + | <td>4.481</td> | ||
| + | <td>0.85</td> | ||
| + | <td>52.91</td> | ||
| + | <td>3.0</td> | ||
| + | <td>4.2 <b>at 10 μA</b></td> | ||
| + | <td>0.5 (for 7.5k events)<br> <b>at 10 μA</b></td> | ||
| + | </tr> | ||
| + | <tr> | ||
| + | <td>15 cm Dummy<sup>#</sup></td> | ||
<td>2 x 2 mm<sup>2</sup></td> | <td>2 x 2 mm<sup>2</sup></td> | ||
<td>4.481</td> | <td>4.481</td> | ||
| − | <td>1. | + | <td>1.547</td> |
| − | <td> | + | <td>52.91</td> |
| − | <td>5. | + | <td>5.5</td> |
| − | <td>0. | + | <td>0.26</td> |
| − | <td> | + | <td>4 (for 3.7k events)</td> |
</tr> | </tr> | ||
</table> | </table> | ||
| + | % <b>Alternative kinematics for pointing run</b>. | ||
| + | # <b>Take Al dummy data only if time permits</b>. | ||
<br> | <br> | ||
Latest revision as of 16:26, 12 April 2016
Proton Elastic Kinematics
* If you need to increase the spectrometer momentum setting, make sure you cycle Q2 and Q3 as per the cycling procedure. * Elastic electron rates assume 20 μA on 15 cm LH2 target, 5 mSr acceptance. * Use the following prescale factors: ps1=1, ps2=1, ps3=1, ps8=100. All other triggers should have zero prescale factor. * For the optics pointing run, decrease the spectrometer momentum to 0.85 GeV/c. The right dipole will need about 1.5 hours to settle. * Take one hour on the optics target. * After the optics run is completed, then increase the spectrometer momentum back to the elastic setting.
Make sure to cycle the right Q2 and Q3 when increasing the momentum. * The 15 cm dummy runs need to be taken at the elastic setting. So keep the momentum as is for this run. * A GMp expert will check the data quality.
- 5th Pass (Ebeam = 11.0 GeV) Time estimate: 39 days @ 20 μA
| Target | Raster | Ebeam [GeV] | P0 [GeV/c] | θe [deg] | Q2 [GeV2] | Electron Rate [Hz] at 20 μA | PAC days at 20 μA |
| 15 cm LH2 | 2 x 2 mm2 | 11.021 | 2.204 | 48.74 | 16.54 | 0.003 | 38 (for 10k events) |
| Optics | Off | 11.021 | 0.85 | 48.74 | 6.38 | 4.4 | 1 hour (for 16k events) |
| 15 cm Dummy | 2 x 2 mm2 | 11.021 | 2.204 | 48.74 | 16.54 | ---- | 1 hour |
- 4th Pass (Ebeam = 8.8 GeV) Time estimate: 22 days @ 20 μA
| Target | Raster | Ebeam [GeV] | P0 [GeV/c] | θe [deg] | Q2 [GeV2] | Electron Rate [Hz] at 20 μA | PAC days at 20 μA |
| 15 cm LH2 | 2 x 2 mm2 | 8.841 | 2.101 | 48.74 | 12.65 | 0.018 | 21 (for 32k events) |
| Optics | Off | 8.841 | 0.85 | 48.74 | 5.12 | 4.9 | 1 hour (for 17k events) |
| 15 cm Dummy | 2 x 2 mm2 | 8.841 | 2.101 | 48.74 | 12.65 | ---- | 1 hour |
- 2nd Pass (Ebeam = 4.5 GeV) Time estimate: 7 hours @ 20 μA
| Target | Raster | Ebeam [GeV] | P0 [GeV/c] | θe [deg] | Q2 [GeV2] | Electron Rate [Hz] at 20 μA | PAC hours at 20 μA |
| 15 cm LH2 | 2 x 2 mm2 | 4.481 | 1.706 | 48.75 | 5.21 | 2.4 | 4 (for 35k events) |
| 15 cm Dummy | 2 x 2 mm2 | 4.481 | 1.706 | 48.75 | 5.21 | 0.4 | 2.5 (for 3.6k events) |
- 2nd Pass (Ebeam = 4.5 GeV) Time estimate: 12 hours @ 20 μA
| Target | Raster | Ebeam [GeV] | P0 [GeV/c] | θe [deg] | Q2 [GeV2] | Electron Rate [Hz] at 20 μA | PAC hours at 20 μA |
| 15 cm LH2 | 2 x 2 mm2 | 4.481 | 1.547 | 52.91 | 5.5 | 1.4 | 7 (for 35k events) |
| Optics | Off | 4.481 | 1.547 | 52.91 | 5.5 | 0.23 | 0.5 (for 400 events) |
| Optics% | Off | 4.481 | 0.85 | 52.91 | 3.0 | 4.2 at 10 μA | 0.5 (for 7.5k events) at 10 μA |
| 15 cm Dummy# | 2 x 2 mm2 | 4.481 | 1.547 | 52.91 | 5.5 | 0.26 | 4 (for 3.7k events) |
% Alternative kinematics for pointing run. # Take Al dummy data only if time permits.
