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Message ID: 39     Entry time: Tue Mar 21 09:59:52 2006
Author: Alec 
Type: 8-ID-I 
Category: Setups 
Subject: Do Young Noh coherent diffraction  
Some misc. notes from Do Young Noh's (DYN) experiment time - March 14--21, 2006

  • DYN JJ slits should work with bipolar and microstepper drives but found only fully reliable behavior with bipolar drives (SPD-6B's)

  • Use microns as slit units as don't have enough resolution in spec otherwise with mm units

  • Did not save all motor settings for the DYN JJ slits, but recall the following:
    (1/2 step mode)
    48 steps/rev,
    gap/aperture = 39.024 microns/revolution
    center = 15.485 microns/revolution

  • ti4 table had to be lowered by approx. 5 mm

  • Used Newport crossed x-z stage (that we use for Lois Pollack) to support addition beam mask at end of flight path

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