Joint Facility of  School of Pharmacy  and Greenebaum Cancer Center

  X-ray Crystallography Core Facility (Xtal)

University of Maryland, Baltimore

X-Ray Room Map

VERY important !!! Before operating the X-ray diffractometer .             

1. Helium: Gas flow MUST be >23 ml/min. Ask manager if you have any problem with Helium.
2. Liquid Nitrogen - 10 on Liquid nitrogen Indicator means there is no LN in tank! Filling LN tank to 96 will be good for 3 days (1.3/hour).

3. EMERGENCY SWITCH - There are two EMERGENCY SWITCH in X-ray room. A yellow button on front panel of x-ray machine, and a power switch box on wall. Both will shut off x-ray machine for safty reasons. Repeated turn-on and shut-off of the X-ray machine will shorten its lifetime.

4. RED light - if the 'red' light inside the room is on, which indicates that the X-ray source is running.
5. POWER setting - Full power is 20 mA and 40 kV. ALWAYS increase the voltage first and then increase the current.