Photon beam position monitor

Patent · Sun Jan 01 00:00:00 EST 1995

OSTI ID:869742

Kuzay, Tuncer M ^[1]; Shu, Deming ^[2]

---

1. Naperville, IL
2. Darien, IL

A photon beam position monitor 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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: University of Chicago (Chicago, IL)
• Patent Number(s): US 5387795
• OSTI ID: 869742
• Country of Publication: United States
• Language: English

Related Subjects

photon
beam
position
monitor
front
beamline
heat
flux
energy
source
synchrotron
radiation
storage
detects
measures
pair
monitors
tandem
slope
emanating
insertion
device
wiggler
undulator
inserted
straight
sections
plurality
spaced
blades
precisely
locating
blade
comprised
chemical
vapor
deposition
cvd
diamond
outer
metal
coating
sensitive
tungsten
molybdenum
etc
combination
emits
electrons
incident
contemplated
vertically
horizontally
offset
detector
avoid
shadowing
provision
aligning
limiting
temperature
operation
beam position
position monitor
heat flux
chemical vapor
vapor deposition
metal coating
outer metal
photon beam
synchrotron radiation
beam emanating
straight section
energy photon
insertion device
photon source
photon sensitive
spaced blade
/250/324/