X-Ray Radiation And Safety

The list below provides some essential safety pointers. However, it is not exhaustive, and users will learn more in the mandatory training sessions that must be completed before using the X-ray facility.

• Only trained personnel are permitted to operate our analytical XRD units.
• Follow all safety protocols at all times—no shortcuts.
• Be aware of the beam path at all times.
• Never place any part of your body in the direct beam path, even if the shutter is closed.
• Ensure all exposures are complete and the shutter is closed before entering the X-ray enclosure.
• Always check that the red shutter light is off before mounting or dismounting your crystals. Keep an eye on the indicator light when near the direct beam: the red light indicates the shutter is open, and it will turn off when the shutter is closed.
• Never bypass the safety interlocks for any reason.
• Close and lock the enclosure doors before starting any exposures.
• Do not use the door interlocks to close the shutter unless it is an emergency. Always close the shutter using the computer control outside the enclosure.
• Never make alterations to the XRD instruments.
• Always wear your dosimeter body badge when entering the X-ray enclosure.
• Always wear safety glasses, long trousers, and closed-toe shoes in the X-ray lab, especially when handling liquid nitrogen during crystal freezing and mounting.
• If in doubt, shut down the X-ray generator and contact the facility director, Dr Annette Erbse, or EH&S. Dr Erbse's mobile and home phone numbers are displayed throughout the X-ray facility, including on the safety enclosures of the XRD instruments and on the emergency contact cards at the doors to the X-ray lab. She is happy for you to call, even late at night, if you are ever uncertain about the safety of your experiment.

"I would rather lose a little sleep preventing an accident than a lot of sleep over the consequences of one!" — Annette Erbse