Figure 2
Schematic diagram of the system to stabilize the incident X-ray energy when performing anomalous diffraction experiments. X-rays from the synchrotron pass through the optical element of the beamline and to the energy stabilization setup, which is composed of an ion chamber, a standard sample and a fluorescence detector (shown inside the dashed box). The standard samples can be made into either films or cuvettes of solution depending on their physical state. A small part of the beam is absorbed by the standard sample, and the emitted fluorescence light is recorded by the fluorescence detector. Most of the beam passes through the energy stabilization system and proceeds to the crystal under study. |