Latest revision as of 14:49, 16 May 2022

Pion-LT (E12-19-006)

Pion Electroproduction Cross Section at 11 GeV and Measurement of the Charged Pion Form Factor to High Q2

RC Meeting Zoom Link - Meeting ID: 160 710 0885

Run period 3 (high epsilon): 06-June-2022 - 10-Aug-2022

• Shift Signup
• Shift Signup (Read only)
• Hall-C Logbook
  • KaonLT Logbook - Used for PionLT updates too
• Run Plans - Link needs updating! Should point to 2022 specific page.
• Pion-LT Redmine Wiki
• Pion-LT specific shift instructions - Needs adjusting for 2022 still
• Pion-LT analysis instructions - Needs adjusting for 2022 still
  • Pion-LT analysis instructions/adjusting cuts - Needs adjusting for 2022 still
• PionLT_2022_Physics_Status

Run period 2 (low epsilon): 16-Aug-2021 - 07-Feb-2022

• Shift Signup
• Shift Signup (Read only)
• Hall-C Logbook
• Run Plans pdf version of run plan
• Pion-LT Redmine Wiki
• Pion-LT specific shift instructions
• Pion-LT analysis instructions
  • Pion-LT analysis instructions/adjusting cuts
• PionLT_2021_Physics_Status

RC Links

• RC Daily Meetings and Runplans (Summer 2022)
• On Call List and Instructions
• PionLT_2022_Physics_Status
• KaonLT Logbook - Used for PionLT updates too
• Shutting off HMS LCW

Previous Meeting Pages

• RC Daily Meetings and Runplans (Spring 2022)
• RC Daily Meetings and Runplans (Fall 2021)
• RC Daily Meetings and Runplans (Summer 2019)

Polarized Helium-3 Experiments (E12-06-110/E12-06-121)

Polarized Helium-3 Experiments (E12-06-110/E12-06-121) main page

Experiment E12-06-110 (A1n) and E12-06-121 (d2n) are scheduled to run from Dec. 3, 2019 to May 6, 2020, with breaks for the X'mas shutdown and the target rotation. These two experiments focus on studies of the nucleon spin structure.

Summer 2019 - E12-06-101/E12-07-105 and E12-15-001

Experiments E12-06-101/E12-07-105 are pion electroproduction experiments and experiment E12-15-001 is a virtual Compton scattering experiment.

• Shift Signup
• Shift Signup (Read only)
• RC Daily Meetings and Runplans (Summer 2019)

Pion-LT E12-19-006 (Run period 1: Low Q2)

https://redmine.jlab.org/projects/hall-c/wiki

• Run Plan
• Pion-LT Redmine
• Pion-LT specific shift instructions
• Pion-LT analysis instructions
• PionLT_2019_Physics_Status

The VCS Polarizabilities experiment E12-15-001

Please pay attention as instructions have change (7/25/2019)

• Redmine page of this experiment: [1]
• Instructions for shift crew
• Physics and yields monitoring
• Printable run sheets: [2]
• Golden run monitoring display of current running kinematic (Ib): [3]

- combined runs missing mass spectra (replayed until 7/28 1 PM): [4]

• Other kinematics:

- Kin Ia, golden run monitoring: [5], combined runs missing mass spectra: [6]

• All instructions and reference plots can be found in the black binder in the counting house.

E12-09-011 (Kaon LT)

Kaon-LT Redmine Page

Run plans

• Run plans for all energies on RedMine
• KAON-LT specific instructions for Shift Takers (PDF)
• KAON-LT specific intructions
• KAON-LT analysis instructions
• Kaon LT Run List 8.2 GeV
• Kaon LT Run List 6.2 GeV
• Kaon LT Run List 3.8 GeV
• Kaon LT Run List 4.9 GeV
• Kaon LT Run List 10.6 GeV

RC Links

• RC Daily Meetings and Runplans (Spring 2019)
• RC Daily Meetings and Runplans (Autumn 2018)
• On Call List and Instructions

Kaon-LT Setting Status

• 6.2/8.2 GeV status page
• 3.8/4.9 GeV status page
• 10.6 GeV status page

6.2/8.2 GeV Runplan Overview

PDF file with run plan details: 6.2 GeV, 8.2 GeV

• Beam checkout
• Items to be done as soon as possible at 6.2 GeV AND 8.2 GeV
  • Arc energy measurement
  • BPM calibration check with superharps
• Calibration Runs (HMS/SHMS sieve runs, luminosity scans, heep-check singles and coincidences)
• 6.2 GeV,
  • Q2=3.0 W=2.32 x=0.40 , low ε data taking
  • Q2=2.115 W=2.95 x=0.21 , low ε data taking
• 8.2 GeV,
  • Q2=4.4 W=2.74 x=0.40 , low ε data taking
  • Q2=3.0 W=3.14 x=0.25 , low ε data taking
  • Q2=5.5 W=3.02 x=0.40 , low ε data taking

3.8/4.9 GeV Runplan Overview

PDF file with run plan details: 3.8 GeV, 4.9 GeV

• SHMS beam deflection test plan
  • 3.8 GeV
    • Set SHMS to 6.79 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 -3.007 GeV/c settings)
  • 4.9 GeV
    • Jay has agreed to defer the SHMS beam deflection study until we get to the 6.00 deg setting in the run plan, expected to be morning of Dec 17.
• Beam checkout
• Items to be done as soon as possible at 3.8 GeV AND 4.9 GeV
  • Arc energy measurement
  • BCM calibration
  • BPM calibration check with superharps
• Calibration Runs (Heep-check singles and coincidences)
• 3.8 GeV, Q2=0.5, W=2.40, x=0.09, low ε data taking
• 4.9 GeV, Q2=0.5, W=2.40, x=0.09, high ε data taking

10.6 GeV Runplan Overview

PDF file with run plan details: [7]

• SHMS beam deflection test plan
  • Set SHMS to 6.66 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 -8.035 GeV/c settings)
• Beam checkout
• Detector checkout
• Trigger checkout
• Items to be done as soon as possible at 10.6 GeV
  • Arc energy measurement
  • BCM calibration
  • BPM calibration check with superharps
• Calibration Runs (Optics, Heep-check singles and coincidences)
• Q2=3.0, W=2.32, x=0.40, high ε data taking
• Q2=2.1, W=2.95, x=0.21, high ε data taking
• Q2=4.4, W=2.74, x=0.40, high ε data taking
• Q2=3.0, W=3.14, x=0.25, high ε data taking
• Luminosity scan
• Q2=5.5, W=3.02, x=0.40, high ε data taking
• Run Plan for Kaon LT 10.6GeV End Game

SIDIS pt experiment E12-09-017 Fall 2018

• Procedures for shift takers
• 4 Pass Run Plan
• 5 pass Run Plan
• Run List

SIDIS CSV experiment E12-09-002

CSV Run Plan

• CSV
• CSV Daily Run Plan - 2018
• CSV Daily Run Plan - 2019
• CSV software

The J/ψ-007 Experiment

Past run plans

Hall C Links

• Hall C Futures
• Commissioning analysis meetings
• 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
  • Qweak, Qweak Wiki
  • HKS, HKS Wiki
  • SANE
  • GEp
  • RCS
  • 2007 Rosenbluth experiments
  • G0
• Other Wikis
  • Neutral Particle Spectrometer
• 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.
• Hall C in the Press.

Common Hall C Training Requirements

NOTE: These are the commonly required training to access and run shifts in Hall C.

The formal requirements will be outlined in the Run Safety Documentation for your particular experiment.

Contact a spokesperson and/or the RC if you have questions.

• Annual Security Awareness (GEN034) • Expires: Annually (January)
• Physics Division Work Governance (SAF116kd) • Expires: Annually (January)
• General Access RWP (SAF801kd) • Expires: Annually (December)
• Oxygen Deficiency Training (SAF103) • Expires: Annually (24 months from date taken)
• ES&H Orientation (SAF100) • Expires: Annually (24 months from date taken)
• RadWorker 1 Written Test (SAF801T) • Expires: Annually (24 months from date taken) • Must be taken on-site -- register well in advance if the Lab is still in a MedCon status!
• Hall C Walkthrough (SAF112) • Expires: Never • Must be done at JLab during a down. Schedule in advance!

These are also required as long as JLab is in an elevated MedCon status due to the COVID-19 pandemic

• SAF003 training: Working Safely at Jefferson Lab During Elevated MedCon Levels
• ESH-20-102494-OSP: COVID-19 Pandemic Controls (READ NOW, sign copy in CH when you arrive.)

Many courses are Web based and can be found on the JLab Training Page.

You can check your training status online.

Also, don't forget to register your visit at least 7 days prior to your trip:

• https://misportal.jlab.org/jlabAccess/

Recommended Mailing Lists

Recommended Mailing Lists JLab runs many Mailing Lists to communicate with its Staff and Users. Most are available for general sign-up by clicking on the relevant link and following the instructions.

There are a few Mailing Lists that Hall C Users are strongly encouraged to subscribe to:

• Hall C Main
• Hall C Running Experiment Information
• Scientific Computing Briefs

There are also experiment specific Mailing Lists. Contact the Experiment Coordinator if you do not see yours here:

• Mailing list for 12 GeV Hall C A1n and d2n experiments (2019--2020);

Basic Equipment in Hall C

• August 2016 ERR
• Detector Working Group Meetings
• Online/Offline Monitoring Working Group Meetings

Beam Energy

• Table of 12 GeV Beam Energy Measurements

Beam Current Monitoring (BCM)

• Hall C BCMs

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

• SHMS Horizontal Bender
• SHMS Q1

SHMS optics page

SHMS Survey data

SHMS Collimator/Sieve

• The SHMS collimator/sieve assembly is located between the Horizontal Bender and the first quadrupole.
• The SHMS collimator/sieve are made of Mi-TechTM Tungsten HD-17 (Density 17 g/cc. 90% W, 6% Ni, 4% Cu).
• The SHMS collimator is a flared octagonal aperture with thickness of 2.5 inches.
• There are two SHMS sieves. Each with thickness of 1.25 inches.
• The sieves have the same hole pattern but one sieve has the hole pattern horizontally shifted by half the hole spacing.
• Drawings of the collimator and two sieves.
• The drawings show details of the sieve hole patterns and the collimator shape.

SHMS optics data

• Wiki page on the SHMS optics

HMS Optics

HMS Survey data

HMS Collimator

• The HMS collimators/sieve assembly is located in 166.4 cm from the target in front of the first quadrupole.
• The HMS collimators/sieve are made of Mi-TechTM Tungsten HD-17 (Density 17 g/cc. 90% W, 6% Ni, 4% Cu).
• The HMS collimators are both a flared octagonal aperture with thickness of 2.5 inches.
• There are two HMS collimators which are designated as the "larger" and "small" collimators.
• Drawing of the small collimator. It is labelled as the "top" collimator in the drawing. The "center" collimator is the drawing was replaced by the present day large collimator.
• Could not find a drawing of the present day large collimator.
  • The dimensions are front (back) opening in the horzontal direction are 4.575cm (4.759cm) along top of octagon and 9.150cm (9.518cm) at the vertical middle of the octagon.
  • The dimensions are front (back) opening in the vertical direction are 11.646cm (12.114cm) along side of octagon and 23.292cm (24.228cm) at the horizontal middle of the octagon.
• The HMS sieve has thickness of 1.25 inches.
• Drawings of the sieve.

HMS optics data

• Wiki page on the HMS optics

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 KPP 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.

Sept 2021 run

• Draft document on the September 2021 target ladder assembly

HMS Magnets and Vacuum Vessel

HMS Detectors

• Pre-12 GeV Drift Chambers
• Post-12 GeV Drift Chambers
• Hodoscopes
• Calorimetry
• Aerogel
• Cherenkov

SHMS Detectors

• Hodoscopes
• Drift Chambers
• Calorimetry
• Aerogel
• Heavy Gas Cherenkov
• Noble Gas Cherenkov
• GEM
• Miscellaneous Information

DAQ & Trigger

• DAQ/Trigger Run Check Lists
• DAQ/FADC firmware History
• Trigger History
• 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.
  • See Collimator controls on How-to page
  • NOTE: Do not attempt a reset of the collimator controls unless you have reason to believe that the collimator has moved and have checked with the RC

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
• Compiling hcana with cmake
• Discussion of the HCANA software flow.
• Documentation on the Hall C optics optimization.
• Software task list for summer of 2017.
• Summer 2017 Analysis Workshop
• 2018 Hall A/C Analysis Workshop
• Agendas for biweekly software meetings.
• Simona's notes

Monte Carlo

• SIMC

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:
  • CaFe Experiment
  • b1
  • Polarized WACS
  • Azz: Azz Meetings
  • E12-10-002 F2/EMC/x>1
  • 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
• Commissioning Analysis Meetings Page