Difference between revisions of "Main Page"
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=== 8.5 GeV Runplan Overview === | === 8.5 GeV Runplan Overview === | ||
| − | '''PDF file with run plan details: [https://redmine.jlab.org/attachments/download/ | + | '''PDF file with run plan details: [https://redmine.jlab.org/attachments/download/279/runplan_8p5gev.pdf]''' |
* SHMS beam deflection test plan | * SHMS beam deflection test plan | ||
** Set SHMS to 7 degrees, with all magnets ramped to zero | ** Set SHMS to 7 degrees, with all magnets ramped to zero | ||
Revision as of 08:18, 27 August 2018
Kaon LT experiment
Redmine wiki page
Run plans
- Run plans for all energies on RedMine
- KAON-LT specific instructions for Shift Takers (PDF)
- Guidance for SHMS/HMS rotation
- KAON-LT specific intructions
- KAON-LT analysis instructions
- Kaon LT Run List
RC Links
8.5 GeV Runplan Overview
PDF file with run plan details: [1]
- SHMS beam deflection test plan
- Set SHMS to 7 degrees, with all magnets ramped to zero
- Jay Benesch will execute his beam deflection test plan
- Shift workers will need to ramp SHMS magnets as directed by Jay (use -6.053 GeV settings)
- Beam checkout
- Detector checkout
- Trigger checkout
- Items to be done as soon as possible at 8.5 GeV
- Arc energy measurement
- BCM calibration
- BPM calibration check with superharps
- Calibration Runs
- Q2=4.4, W=2.74, x=0.40, low ε data taking
- Q2=2.0, W=3.20, x=0.176, low ε data taking
- Q2=3.0, W=3.14, x=0.25, low ε data taking
SIDIS pt experiment E12-09-017 Fall 2018
Past run plans
CT Experiment (E1206107) Run Plan
The 6.4 GeV Run Plan (52 hrs)
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2 mm2 |
| target: | 10cm LH2 |
| HMS/SHMS collimator: | PION , COLLIMATOR |
| HMS/SHMS trigger: | Coincidence |
| HMS angle/momentum | Various |
| SHMS angle/momentum | Various |
- Run Plan:
- HMS is detecting electrons and SHMS is detecting protons.
- Use HMS pion collimator and SHMS collimator.
- Start with 30uA on lower 6% Carbon, after a 2 hr run, increase to 40 uA and after another 2 hr run move to the upper 6% Carbon and ask for 50 uA.
- Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 10000 events for LH2 and Carbon
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time | Complete |
|---|---|---|---|---|---|---|---|
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 12 hrs | Y |
| LH2 | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 30 min | Y |
| Al. Dummy | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 4 hrs | Y |
| 6% C | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 36 hrs | Y |
| 6% C | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 45.1 deg | -2.131 | 17.1 deg | +5.122 | 30 min | Y |
The 10.6 GeV Run Plan (282 hrs)
- Conditions:
| beam current: | 65 μA |
|---|---|
| fast raster: | 2x2 mm2 |
| target: | 10cm LH2 |
| HMS/SHMS collimator: | LARGE , COLLIMATOR |
| HMS/SHMS trigger: | Coincidence |
| HMS angle/momentum | Various |
| SHMS angle/momentum | Various |
- Run Plan:
- HMS is detecting electrons and SHMS is detecting protons.
- Use HMS pion collimator and SHMS collimator.
- H(e,e'p) Check
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time | Complete |
|---|---|---|---|---|---|---|---|
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | 4 hrs (3 Hz) | Y |
- Q^2 = 14.3 GeV^2 Run Plan
- Cycle SHMS magnets since raising momentum
- Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 1000 events each for LH2 and Carbon and take two singles run 30 mins each at the beginning and end of the running on a particular target.
- For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time | Complete |
|---|---|---|---|---|---|---|---|
| LH2 | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 39.3 deg | -2.982 | 12.8 deg | +8.505 | 36 hrs | Y |
| LH2 | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 39.3 deg | -2.982 | 12.8 deg | +8.505 | 1 hr | Y |
| Al. Dummy | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 39.3 deg | -2.982 | 12.8 deg | +8.505 | 3 hrs | Y |
| 6% C | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 39.3 deg | -2.982 | 12.8 deg | +8.505 | 122 hrs | Y |
| 6% C | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 39.3 deg | -2.982 | 12.8 deg | +8.505 | 1 hr | Y |
- Q^2 = 11.5 GeV^2 Run Plan
- Cycle HMS magnets since raising momentum
- Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 1000 events each for LH2 and Carbon
- For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).
| Target , current | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Time | Complete |
|---|---|---|---|---|---|---|---|
| 6% C, 50uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 28.5 deg | -4.478 | 17.8 deg | +7.001 | 18.5 hrs | Y |
| 6% C, 50 uA | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 28.5 deg | -4.478 | 17.8 deg | +7.001 | 30 min | Y |
| LH2, 65 uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 28.5 deg | -4.478 | 17.8 deg | +7.001 | 3.5 hrs | Y |
| LH2, 65 uA | ps1=0,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 28.5 deg | -4.478 | 17.8 deg | +7.001 | 30 min | Y |
| Al. Dummy, max allowed | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 28.5 deg | -4.478 | 17.8 deg | +7.001 | 1 hrs | Y |
- Q^2 = 9.5 GeV^2 Run Plan
- Cycle HMS magnets since raising momentum
- Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut)
- For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).
| Target | Prescales | HMS angle | HMS momentum | SHMS angle | SHMS momentum | Counts/time | Complete |
|---|---|---|---|---|---|---|---|
| 6% C, 50 uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | 3000/6 hr | Y |
| 6% C, 50 uA | ps1=5,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | >300K each arm/ 1 hr | Y |
| 1.5% C, 60 uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | 3000/14 hr | Y |
| Al Dummy, 40 uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | 2 hr | Y |
| LH2, 60 uA | ps1=4,ps2=-1,ps3=-1,ps4=0,ps5=-1,ps6=-1 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | >300K each arm/ 1 hr | Y |
| LH2, 60 uA | ps1=-1,ps2=-1,ps3=-1,ps4=-1,ps5=-1,ps6=0 | 23.2 deg | -5.539 | 21.6 deg | +5.925 | 2 hr | Y |
F2 Experiment (E12-10-002) L/T measurement Run Plan
- Experts: Simona Malace, Eric Christy
- Expected time: 2 days at 30 muA
- Goal: Measure one epsilon point to better constrain R at large x
- Conditions: ONLY HMS NEEDED. Prescale to 2 kHz, cycle magnets.
| beam current (uA): | max current |
|---|---|
| fast raster: | 2x2mm |
| target: | 10 cm LH2, Al 10 cm Dummy |
| HMS collimator: | PION |
| HMS trigger: | ELREAL for physics data taking |
| HMS trigger: | SCIN 3/4 *for one run only* in the beginning for trigger efficiency calculation (we are running one trigger at the time) |
| HMS angle/momentum: | 65 deg / -1 GeV/c - 100 K electrons |
| HMS angle/momentum: | 65 deg / +1 GeV/c - 10 K positrons |
F2/EMC Experiment (E12-10-002/E12-10-008) 5 pass Run Plan
- Spokespeople E12-10-002: E. Christy, T. Keppel, S. Malace (contact), I. Niculescu
- Graduate Students E12-10-002: Deb Biswas, Abel Sun, Fernando Araiza Gonzalez
- Spokespeople E12-10-008: J. Arrington, A. Daniel, D. Gaskell (contact), N. Fomin
- Graduate Students E12-10-008: Abishek Karki, Kayla Craycraft
- Conditions:
| beam current: | varies per target |
|---|---|
| fast raster: | 2x2 mm2 |
| targets: | 10cm LH2 and LD2, 10 cm Al Dummy, Be, 10,11B, C 1.5 % |
| HMS/SHMS collimator: | Large , COLLIMATOR |
| HMS/SHMS trigger: | ELREAL/ELREAL for NEG. Polarity runs; ELCLEAN/ELCLEAN for POS. Polarity runs |
| HMS angle/momentum | Various (check run plan below) |
| SHMS angle/momentum | Various (check run plan below) |
F2/EMC Production Run Plan:
F2/EMC Online Analysis Flow
F2/EMC analysis how-to for shift takers Step 1
F2/EMC analysis how-to for shift takers Step 2
F2/EMC analysis how-to for shift takers Step 3
F2/EMC: Data taken so far
F2/EMC: Other
- Simona's notes
F2/EMC: Special Tests
- HMS Dipole saturation at 5.7 GeV/c
HMS saturation measurement run plan
- Boiling studies
--> HMS, SHMS: 25 deg, -4.4 GeV/c (E = 10.6 GeV) (we will take data in both spectrometers at the same time)
--> shoot for 0.5 % statistical uncertainty where possible (no less than 0.8 %)
--> Trigger type will be ELREAL (prescale if needed to keep the DAQ rate below 3000 Hz)
Targets/currents:
--> Al: 40 uA
--> LH2: 10, 25, 40, 50, 60, 70, 80 uA
--> LD2: 10, 25, 40, 50, 60, 70, 80 uA
--> C 1.5%: 10, 35, 45, 55, 65 uA
- BCM calibration procedure
[ https://hallcweb.jlab.org/doc-public/ShowDocument?docid=957 ]
- HMS/SHMS saturation tests
- Run two separate DAQs. For HMS PS2=0 and SHMS PS2=0, rest to -1.
- Use the optics 1 target
- Put sieve in HMS and centered sieve in SHMS
- Maximum current.
- Set HMS angle to 15 degrees and SHMS angle to 9 degrees.
- Need to cycle magnets in HMS and SHMS.
- Want to have 2000 counts in center foil.
- For HMS the dipole NMR will be adjusted at each setting to give good Ytar versus Yptar.
- For HMS at 5.9,5.7 and 5.5 have been done before. It is a consistency check. 5.3 and 5.1 will see if dipole needs to be changed.
- For SHMS , just take data
| HMS momentum | HMS comment | SHMS momentum | comment |
|---|---|---|---|
| 5.9 | Set quads by "go_magnet_HMS_current" , set Dipole to 1.01 higher | 8.7 | Set magnets by "go_magnet_SHMS_current" |
| 5.7 | Set quads by "go_magnet_HMS_current" , set Dipole to 1.0075 higher | 8.2 | Set magnets by "go_magnet_SHMS_current" |
| 5.5 | Set quads by "go_magnet_HMS_current" , set Dipole to 1.005 higher | 7.7 | Set magnets by "go_magnet_SHMS_current" |
| 5.3 | Set quads by "go_magnet_HMS_current" , set Dipole to 1.00 higher | 7.2 | Set magnets by "go_magnet_SHMS_current" |
| 5.1 | Set quads by "go_magnet_HMS_current" , set Dipole to 1.00 higher | 6.7 | Set magnets by "go_magnet_SHMS_current" |
F2/EMC: Useful Links
RC Links
F2/XEM E-Logs
F2/XEM Analysis Meetings
- BlueJeans Meeting Information
To join the Meeting: https://bluejeans.com/354839810 To join via Room System: Video Conferencing System: bjn.vc -or-199.48.152.152 Meeting ID : 354839810 To join via phone : 1) Dial: +1.408.740.7256 (United States) +1.888.240.2560 (US Toll Free) +1.408.317.9253 (Alternate number) (see all numbers - http://bluejeans.com/numbers) 2) Enter Conference ID : 354839810
Deuteron Electro-Disintegration (E12-10-003) Run Plan
- Monitoring/Analysis Instructions During A Shift
- Data RunSheet
- Experts: Werner Boeglin, Mark Jones
- Graduate Student: Carlos Yero
- Expected Time: 6 days at min. of 40 uA
- Goal: Measure D(e,e'p)n cross section at three kinematic settings, where FSI are small
- Conditions: The SHMS will detect electrons and the HMS will detect protons.
| beam energy: | 10.6 GeV |
|---|---|
| minimum beam current: | 40 μA |
| fast raster: | 2x2 mm |
| targets: | 10cm LH2, 10cm LD2, Aluminium Dummy |
| HMS/SHMS collimator: | Pion , Collimator |
| HMS/SHMS trigger: | Coincidence, HMS: h3/4, SHMS: p3/4 |
| HMS angle/momentum | Various |
| SHMS angle/momentum | Fixed |
- H(e,e'p) Check Run Plan
- Check the HMS/SHMS spectrometer pointing
- run with SHMS singles trigger to measure proton absorption in HMS.
- Trigger PS6=0, rest set to -1. (PS3=4, rest=-1 for proton Abs. runs)
- Data taking should take about 1 hour.
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Charge |
|---|---|---|---|---|---|
| LH2 | 12.2 deg | -8.70 GeV/c | 37.3 deg | +2.938 GeV/c | 144mC |
- Aluminium Dummy Run
- Correct for scattered events off the Al. cell walls for H(e,e'p)
- Trigger PS3=0 and rest to -1. (pRE-Scale accordingly to keep rate < 3kHz)
- Data taking should take about 1 hour.
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Charge |
|---|---|---|---|---|---|
| Al | 12.2 deg | -8.70 GeV/c | 37.3 deg | +2.938 GeV/c | 144mC |
- D(e,e'p)n Run Plan
- Calibration run at low missing momentum used as a cross check with existing data
- Trigger PS6=0 and rest to -1.
- Data taking should take about 1-2 hours.
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Missing Momentum | Charge |
|---|---|---|---|---|---|---|
| LD2 | 12.2 deg | -8.70 GeV/c | 38.896 deg | +2.844 GeV/c | 80 MeV | 250mC |
- Measure the D(e,e'p)n Cross Section at unexplored high missing momentum kinematics settings
- Trigger PS6=0 and rest to -1.
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Missing Momentum | Charge |
|---|---|---|---|---|---|---|
| LD2 | 12.2 deg | -8.70 GeV/c | 55.0 deg | +2.194 GeV/c | 580 MeV | 5040mC |
| LD2 | 12.2 deg | -8.70 GeV/c | 58.4 deg | +2.091 GeV/c | 750 MeV | 10540mC |
- Elastic LH2 delta scan
- Runs will be 15 minutes.
- When changing HMS settings , take SHMS singles with PS3=0, rest=-1
- At 8.5 deg take data with sieve
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Trigger | Comment |
|---|---|---|---|---|---|---|
| LH2 | 14.0 deg | -8.70 GeV/c | 33.51 deg | +3.48 GeV/c | PS6=0 rest -1 | SHMS Collimator |
| LH2 | 10.0 deg | -8.70 GeV/c | 42.9 deg | +2.31 GeV/c | PS6=0 rest -1 | |
| LH2 | 8.5 deg | -8.70 GeV/c | 47.6 deg | +1.89 GeV/c | PS6=0 rest -1 | |
| LH2 | 8.5 deg | -8.70 GeV/c | 47.6 deg | +1.89 GeV/c | PS6=0 rest -1 | SHMS Centered sieve IN |
- Continue to measure the D(e,e'p)n Cross Section at unexplored high missing momentum kinematics settings
- Trigger PS6=0 and rest to -1.
| Target | SHMS angle | SHMS momentum | HMS angle | HMS momentum | Missing Momentum | Comment |
|---|---|---|---|---|---|---|
| LD2 | 12.2 deg | -8.70 GeV/c | 58.4 deg | +2.091 GeV/c | 750 MeV | finish setting |
SIDIS Run Plan
- Detailed run plan
- Instructions_for_monitoring_and_analysis_of_SIDIS_runs_during_shift
- SIDIS run list
Fall 2017 Commissioning Plans
- Information for Shift Takers (2017-2018 Shift Signup)
- Target web page. Target training schedule
- Sign up for hallc_running mailing list. Archive
- Runsheets:
- Update beam schedule Jan 2018
- Fall 2017 Commissioning Plan
- Commissioning analysis logbook
- Commissioning analysis meetings
- Experts on call
- How-to
- Detector Working Group Biweekly Meeting Agendas
- Wiki Page for Detector Working Group Biweekly Meetings
Spring 2017 KPP run
- KPP Run Plan
- RC daily meetings and daily runplan for KPP
- Logbook entry with pdf of the run sheets.
Hall C Links
- List of (legacy) Hall-C HowTo Documents
- HCANA doxygen
- Google Search of this Wiki
- Hall C Home Page
- Hall C Logbook
- Document Database (Publically readable view)
- Hall C Calendar (Google)
- Hall C Weekly Meeting minutes
- Previous Experiments
- Other Wikis
- Misc Links:
- Survey and Alignment Group: Surveys 2001-Present
- Hall C posters
Hall C
Hall C is one of four experimental halls at JLab.
Hall C Computing.
Basic Equipment in Hall C
Beamline
SHMS Magnets
For the Fall 2017 run, see intructions at https://hallcweb.jlab.org/wiki/index.php/How-to
The formulas and program should be kept in sync with the repository.
- Formulas used for setting current of SHMS magnets during KPP
| Magnet | Formula |
|---|---|
| HB | Current = 330.05*p - 3.1784*p^2 + 0.4018*p^3 |
| Q1 | Current = 222.4*p - 7.709*p^2 + 0.6684*p^3 |
| Q2 | Current = 3661*p/11 |
| Q3 | Current = 2434*p/11 |
| Dipole | Current = 3450*p/11 |
Scattering Chamber
- The scattering chamber window on the SHMS side is 0.020 inches thick 2024-T4 aluminum.
SHMS Entrance Window and Vacuum vessel
- The Horizontal Bender entrance window is 0.010 inches thick 2024-T3 aluminum.
- The dipole exit window is 0.020 inches thick 5056 aluminum.
Target
Spring 2017 KKP run
- Word doc describing the targets and their thicknesses. Also available at logbook entry.
- Drawing of target ladder. Also available at JLab document repository.
Fall 2017 run
- Logbook entry on the Fall target configuration which has links to file describing the targets and their thicknesses and a file with the mechanical drawing of the target ladder.
- BeO target was replaced by the "halo" cylinder target. Logbook entry with drawing of "halo" cylinder target.
- Drawing of target ladder with cryo cells and solid target ladder.
- Drawing of cryotarget cell with 2.5inch diameter and 10 cm long (after using insert entrance window). Used for separate LH2 and LD2 cells in ladder.
- Drawing of cryotarget with 1.6 inch diameter for 4cm cell.
- Drawing of cryotarget with 1.6 inch diameter for 10cm cell.
HMS Magnets and Vacuum Vessel
HMS Detectors
SHMS Detectors
- Hodoscopes
- Drift Chambers
- Calorimetry
- Aerogel
- Heavy Gas Cherenkov
- Noble Gas Cherenkov
- GEM
- Miscellaneous Information
DAQ & Trigger
- DAQ/Trigger Run Check Lists
- Spring 2018 Commissioning
- Fall 2017 Commissioning
- Hall C DAQ How-tos
- Scalers
- Trigger
- Electronic/Computer Live Time Studies
Controls
- High Voltage
- Spectrometer Controls (Use go_cmagnets command)
- HMS and SHMS Collimator Control document.
Online Replay
- Basic Hall C replay structure on github.
- Brief overview of the basic Hall C replay structure .
Data Analysis
- Analyzer and other Hall C related software
- Discussion of the HCANA software flow.
- Documentation on the Hall C optics optimization.
- Software task list for summer of 2017.
- Summer 2017 Analysis Workshop
- Agendas for biweekly software meetings.
Monte Carlo
Hall C at 12 GeV
- Hall C 12 GeV Upgrade Web Page
- SHMS-HMS User Group wiki page with list of board members, charter and table of contacts.
- Listing of newsletters on the SHMS/HMS/12GeV .
- SHMS Mailing List (shms_users@jlab.org) is the mailing list for sharing information on the SHMS and 12 GeV upgrade in general.
- Index of 12 GeV software related wiki pages. Go to Hall C Software Mailing List (hallcsw@jlab.org) to see the archives from the mailing list or to subscribe to the mailing list.
- Index of SHMS related wiki pages.
- Polarized 3He target in Hall C
- Wiki pages for 12 GeV experiments:
- b1
- Polarized WACS
- Azz: Azz Meetings
- E12-10-002
- E12-10-003 Deuteron Electro-Disintegration At Very High Missing Momenta
- E12-06-107 Color Transparency Experiment
- A1nd2n A1n and d2n Experiments E12-06-110 and E12-06-121
- SIDIS Run group Experiments E12-09-002 (Charge Symmetry Violation) , E12-09-011 (Kaon factorization) and E12-09-017 (P_t scan of SIDIS)
- Elog for 12GeV Preparations
