Photon beam position monitor

Patent · Tue Feb 07 00:00:00 EST 1995

OSTI ID:6580022

Kuzay, T M; Shu, D

A photon beam position monitor is disclosed for use in the front end of a beamline of a high heat flux and high energy photon source such as a synchrotron radiation storage ring detects and measures the position and, when a pair of such monitors are used in tandem, the slope of a photon beam emanating from an insertion device such as a wiggler or an undulator inserted in the straight sections of the ring. The photon beam position monitor includes a plurality of spaced blades for precisely locating the photon beam, with each blade comprised of chemical vapor deposition (CVD) diamond with an outer metal coating of a photon sensitive metal such as tungsten, molybdenum, etc., which combination emits electrons when a high energy photon beam is incident upon the blade. Two such monitors are contemplated for use in the front end of the beamline, with the two monitors having vertically and horizontally offset detector blades to avoid blade ''shadowing''. Provision is made for aligning the detector blades with the photon beam and limiting detector blade temperature during operation. 18 figs.

• DOE Contract Number: W-31109-ENG-38
• Assignee: Univ. of Chicago, IL (United States)
• Patent Number(s): US 5387795; A
• Application Number: PPN: US 8-097276
• OSTI ID: 6580022
• Resource Relation: Patent File Date: 26 Jul 1993
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATOR FACILITIES
BEAM MONITORS
DESIGN
PHOTON BEAMS
BEAM POSITION
ALIGNMENT
SYNCHROTRON RADIATION SOURCES
WIGGLER MAGNETS
BEAMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
MEASURING INSTRUMENTS
MONITORS
RADIATION SOURCES
430303* - Particle Accelerators- Experimental Facilities & Equipment