Rotating crystal cube as a variable shutter for use with synchrotron radiation. Page: 6 of 9
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3
frequency of the crystal. In this study the spacing between pulses could be varied between 4 s and 167 ms
the Stanford slow-speed motor.1.
14.2 ns
5.68 ns
'
A2.84
ns
AA
A
A
A
75-100ps
Figure 2. Symbolic representation of the bucket time structure of the storage ring at the APS
for singlet, triplet and sextet loadingTable 1: The Open Window Time and Spacing Between Pulses as a Function of the Crystal
Cube Rotation Frequency and the Crystal Rocking Curve Width
X-Ray Energy Rocking Curve Rotation Open Time Spacing
(keV) Width Frequency Window Between Pulses
(Arc sec) (Hz) (ns) (ms)
8 7.41 1.5 3800 167
8.25 690 30
18.75 305 13
62.5 91 4
16 3.6 1.5 1850 167
8.25 337 30
18.75 148 13
62.5 44 4I
B
11
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McPherson, A. Rotating crystal cube as a variable shutter for use with synchrotron radiation., article, July 8, 1998; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc628279/m1/6/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.