The purpose of this device is to allow a safe operation in the experimental hutch when XRay beam they are still beam in the optic hutch. The safety beam shutter is located against the optic hutch - experimental hutch wall. It is made of two bricks (30cm long) of lead carved as a chicane. It is motorised and can be opened and closed once the experimental hutch has been searched and interlocked through SPEC session controlling the experimental hutch using the shopen or shclose commands when implemented or by clicking in "open" or "close" button in mxCuBE Hutch tab. 

For ID14-EH3: you can use BsxCuBE application by clicking on the open/close of the safety shutter button.