A new compact double crystal monochromator for high energy synchrotron radiation and ultrahigh vacuum operation

Autor:	G. R. Emmel, F. H. Middleton, F. Feyzi, G. M. Gregerson
Rok vydání:	1996
Předmět:	Physics Range (particle radiation) business.industry Synchrotron radiation Particle accelerator Advanced Photon Source Space (mathematics) law.invention Optics law Torr business Instrumentation Beam (structure) Monochromator
Zdroj:	Review of Scientific Instruments. 67:3351-3351
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1147498
Popis:	The UW‐Madison Physical Sciences Laboratory proposed a unique double crystal monochromator to the Advanced Photon Source and UNI‐CAT that has resulted in two development projects for the instrument. These two very similar designs are capable of accepting inclined geometry, other high heat load optics, and sagittal focusing crystals by provisions of ample space for such optical elements. The monochromator is a compact instrument. It has a single rotational stage that does not require a track system to access the crystals yet will fit in the confined back space at APS by having only 300 mm distance between the beam centerline and back of the instrument. The frame footprint is only 0.74 m x 0.84 m. The instrument is truly UHV rated for vacuum in the 1.0E−10 Torr range by virtue of its unique internal mechanisms for linear positioning and rotational adjustment of crystals. The design may be modified for operation at low energy synchrotron radiation in the 0.8 to 4.0 keV range requiring higher Bragg angles.
Databáze:	OpenAIRE
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