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~X-ray Exposure Device~


A direct drive motor that carries an Iron-55 sample on the armature. Instead of conventional windings a PCB serves as both the stator and the mechanical baseplate making it intrinsically vacuum compatible. The rotor/ source carrier needs to be quite well balanced as the motor's torque is only about ~5N-Cm.


Academic poster



XED



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Installed in LSST production cryostat.




XED in MMC
XED installed in MMC (R&D Cryostat)



4 XEDs installed on Test and Commisssioning Cryostat
An array of four XEDs in the LSST Test and Commissioning Cryostat




XED controller
XED "quad" controller for LSST Test and Commissioning Cryostat.