Thermal management and prototype testing of Compton scattering X-ray beam position monitor for the Advanced Photon Source Upgrade

2017 ◽  
Vol 88 (2) ◽  
pp. 023106 ◽  
Author(s):  
S. H. Lee ◽  
B. X. Yang ◽  
J. T. Collins ◽  
M. Ramanathan
Keyword(s):  
Compton Scattering ◽  
Thermal Management ◽  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray ◽  
Photon Source ◽  
Prototype Testing

Development of a grazing-incidence insertion device X-ray beam position monitor at the Advanced Photon Source

2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
S. H. Lee ◽  
P. Den Hartog ◽  
B. X. Yang ◽  
G. Decker
Keyword(s):  
Incidence Angle ◽  
Grazing Incidence ◽  
Beam Power ◽  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray ◽  
Insertion Device ◽  
Beam Stability ◽  
Peak Heat Flux ◽  
Photon Source

Beam stability is always a concern in synchrotron light source facilities, and accurate and stable X-ray beam position monitors (XBPM) are key elements in obtaining desired user beam stability. Currently, Advanced Photon Source is preparing to upgrade its facility to increase productivity and to provide better beam stability. For better beam stability, a grazing-incidence insertion device X-ray beam position monitor (GRID-XBPM) is proposed for the insertion device beamline front ends instead of the current photoemission-based XBPM. The design and development of the GRID-XBPM are summarized in this paper including the thermal simulation results of the GRID-XBPM. Thermal and stress analyses show that it withstands the 21 kW total beam power and the peak heat flux of 1684 W mm−2 at a grazing incidence angle of 0.80° using a heat transfer coefficient of 0.010 Wmm−2 °C−1.

scholarly journals X‐ray, soft x‐ray, and VUV beam position monitor

1992 ◽  
Vol 63 (1) ◽  
pp. 526-529 ◽  
Author(s):  
B. A. Karlin ◽  
P. L. Cowan ◽  
J. C. Woicik
Keyword(s):  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray

scholarly journals X-Ray Beam Position Monitor Based on a Single Crystal Diamond Performing Bunch by Bunch Detection

2013 ◽  
Vol 425 (21) ◽  
pp. 212001 ◽  
Author(s):  
M Di Fraia ◽  
M Antonelli ◽  
A Tallaire ◽  
J Achard ◽  
S Carrato ◽  
...  
Keyword(s):  
Single Crystal ◽  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray ◽  
Single Crystal Diamond

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.

Fluorescence-type Monochromatic X-ray Beam-position Monitor with High-spatial Resolution for the NSLS-II Beamlines

2010 ◽  
Author(s):  
Phil S. Yoon ◽  
D. Peter Siddons ◽  
R. Garrett ◽  
I. Gentle ◽  
K. Nugent ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray
Sign in / Sign up

Export Citation Format

Share Document