In this high precision slit system a flexure mechanism is used to move the slit blades over a small range while maintaining a high level of parallelism. Optional items include manual or stepper motor driven operation, a linear encoder to indicate aperture position, feedthroughs to enable measurement of the photo-current from each blade for beam position and intensity monitoring, a motorised stage for longitudinal positioning of the slit, and mounting on a synthetic granite plinth.
|Uncooled precision slit||BSP0100||Range of slit aperture||2 – 500μm
|Stepper motor drive for precision slit||BSP0102||Slit blade width||25mm
|Position encoder for precision slit||BSP0103||Aperture resolution||0.5μm|
|Aperture parallelism and stability||<10% of slit width to a minimum of 2μm|
|Knife edge straightness||1μm|