A single crystal pin diode spectrometer was built to provide a simple experimental
setup for diagnostic use on CHESS beam lines. This spectrometer can be used to accurately
determine the energy, the energy spread, and the angular divergence of monochromatic
beams. The spectrometer can also determine the high energy cutoff of a total reflection
mirror and the alignment of sagitally focused beams.
The instrument determines the energy of a monochromatic beam by measuring the difference
in angle of two (or more) Bragg reflections off the spectrometer crystal. Shown in the
photo, this simple instrument uses two gearboxes, with a common drive shaft, to maintain
the q-2q relationship between the crystal and detector. A pin diode detector is used for
its small size and simplicity of operation. The entire spectrometer can be mounted either
horizontally or vertically on either the standard Klinger Rails or the Dovetail rails of
the crystallography cameras.
For further information contact
Dana Richter.
2008 Run
Nov 19th - Dec 22nd
