Main Page

RC phone: 757-876-1787

SBS Contact Information

Subsystem Expert Contact Info

Hall A Phone Book

SBS Shifters Wiki Info

Shift Schedule

Documentation

HOW TOs for shift crew

Expert Tools

Daily RC Meetings/Run Plan

Welcome to the SBS Shifters Wiki!

The purpose of this Wiki is to organize information relevant to the running experiment and is intended to be the "one stop shop" for all things shift-related. This includes things like run plans, shift sign up, safety, How Tos, important links, concise documentation of equipment (single page of key information for a subsystem encouraged) as well as trouble-shooting and data quality information. Information not directly relevant to shifters should be stored elsewhere such as the SuperBigBite Wiki. For more information, see the GEn webpage or the SBS website.

SBS Shift Information

• GEn Safety documents (ERG, ESAD, COO, SAF110)
• GEn RSAD
• Shift Takers
• Shift How-to
• Fixing the SBS DAQ
• Run Coordinators
• [Runlist (restricted)]
• GEn runs spreadsheet
• All Halls Status and Phone numbers
• GMn runs spreadsheet (old)

Short term run plan (swing 11/17 - day 11/18)

• Finish the Moller measurement
• Make the target ready to get beam on target
• Set up beam to the target https://sbs.jlab.org/wiki/index.php/HOW_TOs#Beam_Recovery_Procedure
• Continue production run on polarized He3 @45uA beam current with pre-scale (ps1=-1, ps2=15, ps3=0, ps5=3, and all other -1)
• Check if parity DAQ is running or not (if not call Paul King)
• Do NMR measurement around every 3 hours

GEn Physics

The GEn experiment is determining the electric form factor of the neutron to high Q² by measuring the ratio of the electric form factor of the neutron to proton via recoil polarimetry. The planned kinematic points have changed slightly from the original proposal; however, the impact of these measurements remains intact. The new kinematics are shown Figure 1 along with the expected uncertainty compared to the originally proposed kinematics. These error bars include current estimate of target and datector performance.

Large Scope Run Plans

GEn Detailed Run Plan (PDF)

GEn Kinematics Spreadsheet (Excel)

The proposed kinematic points for GEn are given here in Figures 2-4.

Figure 2. Details for Q2=2.9 GeV2

Figure 3. Details for Q2=6.6 GeV2

Figure 4. Details for Q2=9.7 GeV2

• Commissioning Plan

• Run_Plan_for_2-pass_Setup

• Run_Plan_for_3-pass_Setup

• Run_Plan_for_4-pass_Setup

GMn Run Plans(old)

Daily Run Plans

Daily run plans are linked to the calendar for the Daily RC Meetings Page

 Time: Daily at 3:00pm
 Location:   Counting house conference room
 

Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1619032184?pwd=aWhTVWxya1ZZQzA1K2ZPSTd2ZXZ2QT09
Meeting ID: 161 903 2184
Passcode: 260715
Dial by your location
       +1 669 254 5252 US (San Jose)
       +1 646 828 7666 US (New York)
       +1 551 285 1373 US
       +1 669 216 1590 US (San Jose)
       833 568 8864 US Toll-free
Find your local number: https://jlab-org.zoomgov.com/u/acj3pTicMx

GMn Daily RC Meetings and Run Plans(old)

SBS Software/Analysis information

SBS Software/GMN analysis meeting agendas and minutes

Student Analysis

Useful links

If you need it, here is a link to the old wiki

Here is the SBS DAQ Meeting page in the old wiki.

GeN safety documentation: [1]