Performance of the Daresbury synchrotron radiation source soft x-ray double-crystal monochromator
- SERC Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)
The double-crystal monochromator on beam line 3.4 at the Daresbury synchrotron radiation source covers the energy region 0.8--4 keV, routinely using crystal pairs of beryl, quartz, InSb, Ge, and Si. The beam line has a unique system to cut off high-energy radiation. The whole beam line has been built on a swinging arm, which allows the glancing angle on a chromium coated premirror to be varied between 0.5{degree} and 3{degree}. This not only reduces the heat load on fragile crystals, but also reduces the higher order contributions. We have made a thorough study of the alignment problems arising in the double-crystal geometry. Crystal misalignment, Bragg angular offset, as well as heat-load effects, can cause severe beam movements. A beam-position monitor, which has recently been commissioned, is an invaluable diagnostic tool for these beam movements.
- OSTI ID:
- 5411874
- Journal Information:
- Review of Scientific Instruments; (United States), Vol. 63:1; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MONOCHROMATORS
PERFORMANCE
SYNCHROTRON RADIATION SOURCES
DESIGN
EV RANGE 100-1000
KEV RANGE 01-10
SOFT X RADIATION
X-RAY SOURCES
ELECTROMAGNETIC RADIATION
ENERGY RANGE
EQUIPMENT
EV RANGE
IONIZING RADIATIONS
KEV RANGE
RADIATION SOURCES
RADIATIONS
X RADIATION
X-RAY EQUIPMENT
430303* - Particle Accelerators- Experimental Facilities & Equipment