Trouble shooting tips for the X-ray lab equipment

RU200 and RU-H3R Generators

No X-rays

1. Check for warning lamps
• FC: implies burnt filament
• CW: implies inadequate cooling water flow
• OLL: implies an overload problem -- common during filament aging and usually can just be restarted
2. Check the voltage and current meters
   • On the two older generators (denali and tick), if there is voltage but zero current, then it is likely that the filament has blown
   • On the newest generator (flea), both meters will indicate 0 when the filament has burnt out
   • If no voltage or current, check for X-ray ready lamp on front panel and on light pole (flea)
   • If ready lamp is not on
     1. Try starting target rotation (TR or T-REV)
     2. Check for burnt out X-ray warning lamps on the front panel and on the generator table top, or "Christmas tree" (light pole)
   • Check for TMP operation
   • Check for water flow problems

R-Axis Detectors and software

1. RS232C timeout warning message
   • Check that the phi axis has been set to the locked position
2. SCSI error
   • Shut down R-Axis controller and software and then restart

X-stream cryo-systems