Parity Checks

In the process of editing and updating this page. Please contact Juliette Mammei crowder@jlab.org with questions or suggestions.

PREX Main<< Information for Shift Takers << Shift Checklist

In general, you can try to search for things in JMenu (next to the magnifying glass, where compton is written in Figure 1) to see if they will come up. The instructions below tell you one way to navigate through the menus to get to the desired screen (there may be other ways to get there).

Figure 1 - Main JMenu window.

Figure 2 - PGUN Main window in JMenu.

Figure 3 - Spin Controls window.

• Insertable half-wave plate (IHWP) Setting (IN or OUT)
  • In JMenu, mouse over "Injector" (see Figure 1)
  • In the dropdown menu, choose "GUN/Laser"
  • From there, choose "PGUN Main"
  • The setting is indicated by the depressed button (see Figure 2, very bottom left corner, it is OUT in this figure)
• Rotatable half-wave plate (RHWP) setting (value like 1532)
  • Right next to the IHWP box in the PGUN window is the set value of the RHWP (1532 in Figure 1)

• Wien settings (FLIP RIGHT or LEFT, or LONG)
  • From JMenu, mouse over "Injector"
  • In the dropdown menu, choose "Spin", then "Spin Controls"
  • The FLIP LEFT or RIGHT or Longitudinal (see Figure 3, very top - middle region, it is "Longitudinal" in this figure)
• Vertical Wien Angle (degrees)
  • The variable is VWienAngle
  • Find it at the bottom of the left box of the spin controls window
  • The value is -0.00 in Figure 3
• Solenoid angle (degrees)
  • The variable is Phi_FG
  • Find it at the bottom of the middle box of the spin controls window
  • The value is 86.901 in Figure 3
• Horizontal Wien Angle (degrees)
  • The variable is HWienAngle
  • Find it at the bottom of the right box of the spin controls window
  • The value is -0.00 in Figure 3