That's approximately the bandwidth of a Si (111) monochromator.
On Wed, 9 Feb 2011, Andre Luis Berteli Ambrosio wrote:
Dear ccp4bb,
I sometimes find the flux of x-ray sources reported in units of “photons/s/0.1%
bandwidth”
instead of simply “photons/s”.
Where does the “1/0.1% bandwidth” unit come from? I have also seen other
percentages like 0.01%
bw or 0.02% bw…
Is it simply defining some degree of acceptance in energy (for example, the
flux between 8 KeV
+/- 8 eV for a given stored current)? Does it somehow have to do with energy
resolution?
Thank you in advance for your answers,
-Andre Ambrosio
--
=========================================================================
Robert M. Sweet E-Dress: sw...@bnl.gov
Group Leader, PXRR: Macromolecular ^ (that's L
Crystallography Research Resource at NSLS not 1)
http://px.nsls.bnl.gov/
Biology Dept
Brookhaven Nat'l Lab. Phones:
Upton, NY 11973 631 344 3401 (Office)
U.S.A. 631 344 2741 (Facsimile)
=========================================================================
