Progress toward a hard x-ray insertion device beam position monitor at the Advanced Photon Source

2007 ◽  
Author(s):  
Glenn Decker ◽  
P. Den Hartog ◽  
O. Singh ◽  
Gerd Rosenbaum
Keyword(s):  
Beam Position Monitor ◽  
Beam Position ◽  
X Ray ◽  
Insertion Device ◽  
Photon Source

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 Smart X-ray beam position monitor system using artificial-intelligence methods for the Advanced Photon Source insertion-device beamlines

1998 ◽  
Vol 5 (3) ◽  
pp. 632-635 ◽  
Author(s):  
Deming Shu ◽  
Hai Ding ◽  
Juan Barraza ◽  
Tuncer M. Kuzay ◽  
Dean Haeffner ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Digital Signal Processor ◽  
High Speed ◽  
Digital Signal ◽  
Beam Position ◽  
X Ray ◽  
Front End ◽  
Insertion Device ◽  
Performance Challenges ◽  
Photon Source

At the Advanced Photon Source (APS), each insertion-device (ID) beamline front end has two X-ray beam position monitors (XBPMs) to monitor the X-ray beam position for both vertical and horizontal directions. Performance challenges for a conventional photoemission-type XBPM during operations are contamination of the signal from the neighbouring bending-magnet sources and the sensitivity of the XBPM to the insertion-device gap variations. Problems are exacerbated because users change the ID gap during their operations, and hence the percentage level of the contamination in the front-end XBPM signals varies. A smart XBPM system with a high-speed digital signal processor has been built at the Advanced Photon Source for the ID beamline front ends. The new version of the software, which uses an artificial-intelligence method, provides a self-learning and self-calibration capability to the smart XBPM system. The structure of and recent test results with the system are presented in this paper.

Status of Taiwan Photon Source front end in National Synchrotron Radiation Research Center

2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
I. C. Sheng ◽  
C. K. Kuan ◽  
Y. T. Cheng ◽  
Y. H. Yan ◽  
G. Y. Hsiung ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Beam Current ◽  
Research Center ◽  
Third Generation ◽  
Beam Position Monitor ◽  
Beam Position ◽  
Front End ◽  
Insertion Device ◽  
Radiation Research ◽  
Photon Source

National Synchrotron Radiation Research Center (NSRRC) in Taiwan has initialized the construction of Taiwan Photon Source (TPS) synchrotron accelerator project. This 3 GeV, 500 mA beam current third-generation synchrotron accelerator will have a total of seven insertion device beam lines at day 1 after commissioning. That is, there will be one 2 × EPU48, five IU22 and one U5 undulator beamline. Corresponding front end components such as fixed masks, photon beam position monitor, photon absorber, slits and heavy metal shutter have been designed; manufacturing of these subsystems are on the way. Several prototype assemblies are completed, tested and will be reported in this paper.

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
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