Photon-beam-position-monitor in PLS Diagnostic Beamline

2010 ◽  
Vol 56 (6(1)) ◽  
pp. 1981-1984 ◽  
Author(s):  
Changbum Kim ◽  
Jong Chel Yoon ◽  
Seung-nam Kim ◽  
Myong-jin Kim ◽  
Hee Seob Kim ◽  
...  
Keyword(s):  
Photon Beam ◽  
Beam Position Monitor ◽  
Beam Position

scholarly journals A phase-space beam position monitor for synchrotron radiation

2015 ◽  
Vol 22 (4) ◽  
pp. 946-955 ◽  
Author(s):  
Nazanin Samadi ◽  
Bassey Bassey ◽  
Mercedes Martinson ◽  
George Belev ◽  
Les Dallin ◽  
...  
Keyword(s):  
Phase Space ◽  
Synchrotron Radiation ◽  
Incident Angle ◽  
Operating Conditions ◽  
Photon Beam ◽  
Profile Measurement ◽  
Beam Position Monitor ◽  
Position Measurement ◽  
Beam Position ◽  
X Ray

The stability of the photon beam position on synchrotron beamlines is critical for most if not all synchrotron radiation experiments. The position of the beam at the experiment or optical element location is set by the position and angle of the electron beam source as it traverses the magnetic field of the bend-magnet or insertion device. Thus an ideal photon beam monitor would be able to simultaneously measure the photon beam's position and angle, and thus infer the electron beam's position in phase space. X-ray diffraction is commonly used to prepare monochromatic beams on X-ray beamlines usually in the form of a double-crystal monochromator. Diffraction couples the photon wavelength or energy to the incident angle on the lattice planes within the crystal. The beam from such a monochromator will contain a spread of energies due to the vertical divergence of the photon beam from the source. This range of energies can easily cover the absorption edge of a filter element such as iodine at 33.17 keV. A vertical profile measurement of the photon beam footprint with and without the filter can be used to determine the vertical centroid position and angle of the photon beam. In the measurements described here an imaging detector is used to measure these vertical profiles with an iodine filter that horizontally covers part of the monochromatic beam. The goal was to investigate the use of a combined monochromator, filter and detector as a phase-space beam position monitor. The system was tested for sensitivity to position and angle under a number of synchrotron operating conditions, such as normal operations and special operating modes where the photon beam is intentionally altered in position and angle at the source point. The results are comparable with other methods of beam position measurement and indicate that such a system is feasible in situations where part of the synchrotron beam can be used for the phase-space measurement.

Application and design of photon beam position monitor in HLS

2005 ◽  
Author(s):  
Baogen Sun ◽  
Duohui He ◽  
Ping Lu ◽  
Yong Wang ◽  
Hongliang Xu ◽  
...  
Keyword(s):  
Photon Beam ◽  
Beam Position Monitor ◽  
Beam Position

scholarly journals Photon beam position monitor for SSRL Beamline 9

1995 ◽  
Vol 66 (2) ◽  
pp. 1646-1647
Author(s):  
John A. Cerino ◽  
Thomas Rabedeau ◽  
William Bowen
Keyword(s):  
Photon Beam ◽  
Beam Position Monitor ◽  
Beam Position

A synchrotron radiation beam-position monitor at the Taiwan Light Source

1998 ◽  
Vol 5 (3) ◽  
pp. 621-623 ◽  
Author(s):  
J.-R. Chen ◽  
T. S. Ueng ◽  
G. Y. Hsiung ◽  
T. F. Lin ◽  
C. T. Lee ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Synchrotron Radiation ◽  
Light Source ◽  
Photon Beam ◽  
Synchrotron Radiation Beam ◽  
Beam Position Monitor ◽  
Radiation Beam ◽  
Beam Position ◽  
Radiation Research

A prototype photon-beam-position monitor has been designed, fabricated and tested at the Taiwan Light Source of the Synchrotron Radiation Research Center. Aluminium was chosen as the material of the blade electrodes due to its low atomic number and high thermal conductivity. The resolution of this photon-beam-position monitor was <±1 µm. The sensitivity of the blade electrode has been measured in situ. Results of measurements for bending-magnet light and undulator light with different gaps are described.

Compact high flux photon beam position monitor

1989 ◽  
Vol 60 (7) ◽  
pp. 1947-1950 ◽  
Author(s):  
E. D. Johnson ◽  
T. Oversluizen
Keyword(s):  
Photon Beam ◽  
High Flux ◽  
Beam Position Monitor ◽  
Beam Position

Staggered-blade photon beam position monitor at Hefei Light Source

2012 ◽  
Vol 24 (8) ◽  
pp. 1990-1994
Author(s):  
顾黎明 Gu Liming ◽  
孙葆根 Sun Baogen ◽  
卢平 Lu Ping ◽  
杨永良 Yang Yongliang ◽  
肖云云 Xiao Yunyun ◽  
...  
Keyword(s):  
Light Source ◽  
Photon Beam ◽  
Beam Position Monitor ◽  
Beam Position

High‐flux photon beam position monitor

1992 ◽  
Vol 63 (1) ◽  
pp. 534-537 ◽  
Author(s):  
T. Mitsuhashi ◽  
A. Ueda ◽  
T. Katsura
Keyword(s):  
Photon Beam ◽  
High Flux ◽  
Beam Position Monitor ◽  
Beam Position
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