Difference between revisions of "Tuesday, Mar. 08: DAY Shift"
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*** <b>Elastic measurement during DAY</b> | *** <b>Elastic measurement during DAY</b> | ||
| − | - 6:30 | + | - 6:30 AM: |
Beam Off, Call MCC to put Hall A in Controlled Access | Beam Off, Call MCC to put Hall A in Controlled Access | ||
Starting Ramping HRS-L magnets to 0 | Starting Ramping HRS-L magnets to 0 | ||
| − | - 7:30 | + | |
| + | - 7:30 AM:<B>Controlled Access</B>: | ||
Tech in Hall, Change HRS-L Polarity, Move Angle to 40.0 deg, Set Momentum = 2.5106 GeV/c, Q1 = 1900 Amp | Tech in Hall, Change HRS-L Polarity, Move Angle to 40.0 deg, Set Momentum = 2.5106 GeV/c, Q1 = 1900 Amp | ||
| − | - 8:30 | + | |
| + | - 8:30 AM: | ||
Elastic Angle Calibration: | Elastic Angle Calibration: | ||
| − | DVCS Trigger s0 only in HRS trigger, Elastics with Calo in current Kin_048_3 setting [[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 here]], 15 microAmp | + | DVCS Trigger s0+s2m only in HRS trigger, Elastics with Calo in current Kin_048_3 setting [[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 here]], 15 microAmp |
| − | - 9:30 | + | |
| − | + | - 9:30 AM <B>Escorted Access</B>: Move Calo to 6 m, 14.0 deg | |
| − | - 10:00 | + | |
| − | - 10:30 | + | - 10:00 AM Elastic Energy Calibration data 20 microAmp |
| − | - 11:00 | + | |
| − | - 11:30 | + | - 10:30 AM <B>Escorted Access</B>: Move Calo to 13.1 deg |
| − | - 12:00 | + | |
| − | - 12:30 | + | - 11:00 AM Elastic Energy Calibration data |
| − | - | + | |
| + | - 11:30 AM <B>Escorted Access</B>: Move Calo to 12.25 deg | ||
| + | |||
| + | - 12:00 PM Elastic Energy Calibration data | ||
| + | |||
| + | - 12:30 PM <B>Escorted Access</B>: Move Calo to Kin_48_2 setting: 15.184 deg, D=2.0 m, 10 micro Amp | ||
| + | |||
| + | - 01:00 PM Angle Calibration Data | ||
(This puts the central elastic 7.1 GeV electrons 2.0 blocks from the physical edge of the calorimeter.) | (This puts the central elastic 7.1 GeV electrons 2.0 blocks from the physical edge of the calorimeter.) | ||
| − | - | + | |
| − | + | - 02:00 PM <B>Controlled Access</B>? | |
| + | Ramp down HRS-L | ||
Polarity, Angle change HRS-L to 20.244 deg to p = 3.996 GeV/c, Q1 = 1900 Amp | Polarity, Angle change HRS-L to 20.244 deg to p = 3.996 GeV/c, Q1 = 1900 Amp | ||
| − | - | + | |
| + | - 03:00 PM Production DVCS at KIN_48_2[[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 here]] | ||
*** <b>Back to Production run, Kin48_2 </b> | *** <b>Back to Production run, Kin48_2 </b> | ||
** After Alex's work, Compton laser will be turned OFF ! | ** After Alex's work, Compton laser will be turned OFF ! | ||
| − | * Polarized beam at | + | * Polarized beam at 9 uA on LH2 15 cm! |
* DVCS is running kin_48_2 [[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 here]] | * DVCS is running kin_48_2 [[https://hallaweb.jlab.org/wiki/index.php/Run_Plan_%28DVCS3%29 here]] | ||
* LHRS is partially detuned: [[https://logbooks.jlab.org/entry/3384965 here]] | * LHRS is partially detuned: [[https://logbooks.jlab.org/entry/3384965 here]] | ||
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<b>Please check more info on the white board in the Counting House ~!! </b> | <b>Please check more info on the white board in the Counting House ~!! </b> | ||
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| + | <b>MCC Beam Team Meeting on Tuesday 1:30PM</b> | ||
| + | |||
| + | ** Julie note from Beam Team Meeting at 1:30PM, Mar.8, 2016 at MCC. | ||
| + | |||
| + | * <b>Purpose</b>: Plans to run at 60uA | ||
| + | |||
| + | * <b>Current issues</b>: | ||
| + | - There is no consensus on why the beam is limited at 30 uA. | ||
| + | |||
| + | * <b>Ideas</b>: | ||
| + | - 1/ The limitation is in the injector | ||
| + | - 2/ In the RF separator | ||
| + | |||
| + | * <b>Attempt</b>: | ||
| + | - 1/ Removing/Changing Wien filter (horizontal-> vertical) ?? | ||
| + | - 2/ Run with a magnetic separation ?? | ||
| + | |||
| + | * <b>Problem foresee</b>: | ||
| + | |||
| + | - 1/ ?? | ||
| + | - 2/ Compatible with Hall D taking data | ||
| + | |||
| + | * <b>GMp expert inform</b>: | ||
| + | - 1/ Polarization is not matter | ||
| + | - 2/ High current 60 uA should be deliverable for calibration and production both 4pass and 5pass | ||
| + | |||
| + | * <b>Concluded Plan</b>: | ||
| + | - Try 60 uA Thursday morning up to noon | ||
Latest revision as of 11:45, 9 March 2016
Go back to Daily Run Plan Daily Run Plans
Previously...
- Production data (Kin48_3)
Specific mission
- Elastic measurement during DAY
- 6:30 AM:
Beam Off, Call MCC to put Hall A in Controlled Access
Starting Ramping HRS-L magnets to 0
- 7:30 AM:Controlled Access:
Tech in Hall, Change HRS-L Polarity, Move Angle to 40.0 deg, Set Momentum = 2.5106 GeV/c, Q1 = 1900 Amp
- 8:30 AM: Elastic Angle Calibration: DVCS Trigger s0+s2m only in HRS trigger, Elastics with Calo in current Kin_048_3 setting [here], 15 microAmp
- 9:30 AM Escorted Access: Move Calo to 6 m, 14.0 deg - 10:00 AM Elastic Energy Calibration data 20 microAmp
- 10:30 AM Escorted Access: Move Calo to 13.1 deg
- 11:00 AM Elastic Energy Calibration data
- 11:30 AM Escorted Access: Move Calo to 12.25 deg
- 12:00 PM Elastic Energy Calibration data
- 12:30 PM Escorted Access: Move Calo to Kin_48_2 setting: 15.184 deg, D=2.0 m, 10 micro Amp
- 01:00 PM Angle Calibration Data (This puts the central elastic 7.1 GeV electrons 2.0 blocks from the physical edge of the calorimeter.)
- 02:00 PM Controlled Access?
Ramp down HRS-L
Polarity, Angle change HRS-L to 20.244 deg to p = 3.996 GeV/c, Q1 = 1900 Amp
- 03:00 PM Production DVCS at KIN_48_2[here]
- Back to Production run, Kin48_2
- After Alex's work, Compton laser will be turned OFF !
- Polarized beam at 9 uA on LH2 15 cm!
- DVCS is running kin_48_2 [here]
- LHRS is partially detuned: [here]
- LHRS=3.996GeV, Q1/Q2/Q3=1916.640(readout:1900)/1600/1600 (Q1 regul.OFF)
- PreScaleR : PS1=PS2=PS3=1, && PS8=200
- PreScaleL : PS9 =1, + DVCS config.
- beam locks: no position lock, energy lock in Arc 2: [here]
- DVCS daq configuration is [this one], we are measuring about 2% DT at 15uA.
BPM/Spot++ Check
- After beam lost for considerable time (like beam study, pass change,...)
- Ask MCC to run 5uA wth carbon hole target and make sure you can see the hole through Spot++
Please check more info on the white board in the Counting House ~!!
MCC Beam Team Meeting on Tuesday 1:30PM
- Julie note from Beam Team Meeting at 1:30PM, Mar.8, 2016 at MCC.
- Purpose: Plans to run at 60uA
- Current issues:
- There is no consensus on why the beam is limited at 30 uA.
- Ideas:
- 1/ The limitation is in the injector - 2/ In the RF separator
- Attempt:
- 1/ Removing/Changing Wien filter (horizontal-> vertical) ?? - 2/ Run with a magnetic separation ??
- Problem foresee:
- 1/ ?? - 2/ Compatible with Hall D taking data
- GMp expert inform:
- 1/ Polarization is not matter - 2/ High current 60 uA should be deliverable for calibration and production both 4pass and 5pass
- Concluded Plan:
- Try 60 uA Thursday morning up to noon
