SANS2D: Rear Detector Strip Beam Stop

[kjwoodsISIS]

As a SANS2D scientist, I want IBEX to provide control for the rear detector strip beam stop, so that I can control its position.

Acceptance Criteria

1. I can control the position of the rear detector strip beam stop via the IBEX GUI.
2. I can control the rotation of the rear detector strip beam stop via genie_python.
3. Beam stop motors are de-energised when motion is complete.
4. I can see if the detector power supply is energised or not.

Notes

1. This ticket is a sub-ticket of SANS2D: Control of Vacuum Tank (EPIC) #4576.
2. The rear detector strip beam stop moves left-right (x-axis) across the face of the rear detector array.
3. The rear detector strip beam stop is not often used (usually only during commissioning). The control could be located on an Advanced tab (possibly Manager password protected).
4. Because the motors that move the beam stops operate in a vacuum, they should be de-energised when a move is complete (otherwise they are at risk of over-heating).
5. There are schematic diagrams showing the operation of the SANS2D vacuum tank.
6. There are schematic diagrams showing the how the SANS2D vacuum tank User OPI and Advanced OPI could look.
7. The LabVIEW VI for the SANS2D vacuum tank is located at: C:\LabVIEW Modules\Instruments\SANS2D\Sans2d Tank (for more details see the S2d Tank - Front Panel.vi in the file Sans2d Tank - System Functions.llb)
8. Check the paragraph describing the Strip Beamstops in the Beam_line_descriptors document.

[Alistair-McGann-Tessella]

PR: ISISComputingGroup/ibex_gui#1164

• The AUTOONOFF setting for the corresponding motor has also been set to 1 in the sans2d settings repo