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THE FOLLOWING INSTRUCTIONS WILL ALLOW YOU TO SAFELY COLLECT YOUR DATA:1. When you first enter the outer lab, check and see if someone else is collecting a data set - if the following screen is on the computer, they are collecting data and the shutter is open: PICTURE OF COMPUTER SCREEN WHEN DATA ARE BEING COLLECTED 2. If you need to stop the previous person's data collection, please hit the Abort button to close the shutter and stop their job PICTURE OF THE ABORT BUTTON ON COMPUTER SCREEN 3. When you are ready to go into the lab, make sure that the safety interlock keypad is NOT in BYPASS mode. If it is in BYPASS mode, you will be able to enter the lab with the shutter open. The keypad is to the left of the door into the lab closest to the computer. In bypass mode, a red light will be lit on the upper left of the keypas, as well as a green light on the upper right. PICTURE OF THE KEYPAD IN BYPASS MODE 4. If the keypad is in bypass mode, a flasing light inside the lab on the generator tabletop will be plainly visible PICTURE OF THE FLASING BYPASS INDICATOR LIGHT 5. DO NOT COLLECT DATA UNDER THESE CONDITIONS - YOU MUST EITHER NOTIFY THE FACILITY DIRECTOR WHO IS THE ONLY PERSON WITH THE CODE TO PLACE THE SYSTEM BACK ON INTERLOCK 5. If you enter the lab with the shutter open, you will see the following lights on the "Christmas tree) behind the generator tube top - the Red light means the X-rays are being produced inside the tube, the YELLOW light means the shutter is open. PICTURE OF IN-LAB INDICATOR LIGHTS SHOWING SHUTTER OPEN PICTURE of IN-LAB INDICATOR LIGHTS SHOWING SHUTTER CLOSED 5. WHen the safety interlock is properly engaged, you will see a green light on the upper right of the keypad - this means that AS SOON AS YOU OPEN THE DOOR TO THE LAB, THE SHUTTER WILL CLOSE AND NOT OPEN AGAIN UNTIL YOU ENTER THE INTERLOCK CODE ON THE KEYPAD. PICTURE OF THE KEYPAD IN INTERLOCK MODE- SHUTTER AVAILABLE 6. You may enter the lab, mount your crystal, and then leave the lab when you are ready to collect data, YOU MUST ENTER THE CODE 0000# (four zeros and a pound sign) TO REMOVE THE INTERLOCK OFF SO THAT THE SHUTTER WILL OPEN. If you do not enter the code, your data collection will proceed but the shutter will not open and your crystal will not be irradiated. If you forget to enter the code, the keypad will look like this: PICTURE OF THE KEYPAD IN INTERLOCK SAFETY MODE - SHUTTER UNAVAILABLE Now, if you or anyone else enters the lab through the two doors, the shutter will close until you leave the lab, close the doors, and re-enter the code. 7. FINALLY, WHEN MOUNTING OR UNMOUNTING A CRYSTAL, TRY TO USE AS MUCH CAUTION AS IF THE SHUTTER WAS OPEN - i.e. USE VIAL TONGS AND CLAMPS WHEREVER POSSIBLE SO THAT YOUR FINGERS DO NOT ENTER THE PATH OF THE PRIMARY BEAM.
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