XRD Standard Operating Procedures 1. Before handling the XRD machine make sure that you have gone through the XRD manual and have taken note of all important safety precautions. Write down the start time and operating current and voltage on the XRD log book. 2. Before turning on XRD, turn on the water and the chiller. 3. Wait till the chiller reaches the desired set temperature and then power on the XRD by selecting the following. (Rigaku -> Control -> XG operation -> XG control RINT 2100 -> Power ON). 4. Before opening the door to load the sample, make sure that the shutter is closed and no X-rays are being generated. 5. Always press the OPEN DOOR button and wait for the beep sound to die down before opening the door. 6. Load the sample carefully at the desired position and shut the door completely. 7. Now you can turn on the X-ray, open the shutter and set the desired measurement condition in the Standard Measurement window. 8. Set the fixed angle for the rocking curve, the start and stop angles and the scan speed. 9. Once you determine the offset from the rocking curve, use it in the 2 theta scan measurement. 8. Never try to open the door when the measurement is in progress or when the shutter is open. If there is a need to open the door during measurement, break the measurement, close the shutter and then open the door. 9. After the measurement, in order to shut down the XRD machine go to the XG control window RINT2100 and turn the X-ray off and then the Power off. 10. After Xray turned down for more than 15 minutes. Turn off the chiller and make sure you shut down the water valves too. 11. Whenever you are leaving the room just checks if the Xray machine is shut down and the chiller and water is shut down too. Switch off the lights and lock the door when you exit the room. X-Ray Turn-On and Basic Warm-Up Procedure With door closed 每 Power On 每Cooling Water On- You should have a READY lamp. Click X-Ray On symbol to turn X-Ray On(Power on at 20kV 2MA). Increase MA in 2MA steps to 20KV 10MA and leave at this power for a minimum of 15 minutes to allow Tube&Target to slowly warm up. X-Ray Operational Use Warm Up Basic X-Ray Turn-On and Warm-Up have already been completed. 1 --Increase MA setting to 20MA and click SET button. 2 每Increase KV setting to 30KV and MA setting to 30MA and click SET button. 3〞Increase KV setting to 40KV and MA setting to 40MA and click SET button. 4〞Leave at this power for a minimum of 15 minutes before use so the X-Ray tube target and filament become temperature stable. Door Opening With X-ray On(Shutter closed) Note: Check Christmas Tree Lamps to ensure shutter is closed!!! 1 每 Push the ※Door Open§Yellow Switch. (Lamp will turn on) 2 每 WAIT until the lamp starts flashing &safety beeper is beeping. If Lamp does not start flashing 每 Shutter may be open 3 每 Open Door firmly( if slowly you can trip microswitch shutting off X-Rays as it senses microswitch opening-closing-opening). NOTE: Shutter is closed so there is no X-Ray to worry about! 4 每 When closing Door after you have the sample mounted/unmounted. Close slowly But firm holding both doors so they don't bounce.