Common Problems

Problems and Solutions

• Collimator Temperature is Rising
  • If the collimator temperature alarm goes off, call MCC and tell them to turn off the beam. Then call the RC.
  • Don't raise the temperature alarm limits on the collimator. If it's getting warm, something's wrong
  • Things to check:
    • Is the collimator cooling? Stripchart should show 5 for the water flow at all times.
    • Is the raster size correct? Correct size is written on white board.
    • Have the Raster quads (Moller quads) been set to the correct values? See strip chart called "RasterQuadsCheck" and scale back in time to look for changes to values
    • Are the bpms working? IPM1H04A and IPM1H04E XPOS and YPOS should read out nonzero numbers on the strip chart when beam is on.
    • Is the beam in the right position? See appropriate IPM1H04A and IPM1H04E XPOS and YPOS written on the whiteboard.
    • Is the HallATGT lock enabled? Call MCC and ask if the target lock is enabled