Storage Ring Light Sources

2010 ◽  
Vol 03 (01) ◽  
pp. 57-76 ◽  
Author(s):  
Z. T. Zhao
Keyword(s):  
Light Source ◽  
Storage Ring ◽  
Current Status ◽  
Light Sources ◽  
Third Generation ◽  
Next Generation ◽  
Future Developments ◽  
The Future ◽  
Historical Remarks ◽  
Development And Evolution

This article outlines the development and evolution of storage ring light sources, focusing on the latest, third generation light sources. After making brief historical remarks, it describes the current status, the performance, and the technological advancements of third generation light sources. The future developments of the ultimate storage ring as the next generation light source are envisioned.

Tune optimization of the third generation light source storage ring based on Frequency Map Analysis

2009 ◽  
Vol 33 (3) ◽  
pp. 224-231
Author(s):  
Tian Shun-Qiang ◽  
Liu Gui-Min ◽  
Li Hao-Hu ◽  
Hou Jie ◽  
Zhang Wen-Zhi
Keyword(s):  
Light Source ◽  
Storage Ring ◽  
Third Generation ◽  
The Third ◽  
Frequency Map ◽  
Map Analysis ◽  
Frequency Map Analysis

Lattice design challenges for fourth-generation storage-ring light sources

2014 ◽  
Vol 21 (5) ◽  
pp. 912-936 ◽  
Author(s):  
Michael Borland ◽  
Glenn Decker ◽  
Louis Emery ◽  
Vadim Sajaev ◽  
Yipeng Sun ◽  
...  
Keyword(s):  
Storage Ring ◽  
Fourth Generation ◽  
Light Sources ◽  
Third Generation ◽  
Lattice Design ◽  
The World ◽  
Beam Lifetime ◽  
New Generation ◽  
Design Challenges ◽  
Low Emittance

Third-generation low-emittance storage-ring light sources based on double- and triple-bend cells and undulator magnets have been in operation around the world for more than two decades. On the horizon is a new generation based on the multi-bend achromat (MBA) lattice concept promising two to three orders of magnitude higher brightness than is available in today's sources. In this paper, the challenges inherent in designing MBA lattices, as well as potential solutions, are described. Topics covered include lattice concepts, scaling of storage-ring performance, brightness optimization, nonlinear dynamics, beam lifetime and injection schemes.

Girder integration NSLS-II

2011 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
L. Doom ◽  
M. Anerella ◽  
T. Dilgen ◽  
R. Edwards ◽  
R. Faussete ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Light Source ◽  
Storage Ring ◽  
Third Generation ◽  
National Synchrotron Light Source ◽  
High Brightness ◽  
Vacuum Chambers ◽  
Synchrotron Light ◽  
Low Emittance ◽  
Ancillary Equipment

National Synchrotron Light Source II (NSLS-II) will be a 3-GeV 792 m circumference third generation synchrotron radiation facility with ultra low emittance and extremely high brightness. There will be a total of 90 multipole storage ring girders supporting the vacuum chambers, multipole magnets and various pieces of ancillary equipment. A major effort is being made to meet the stringent assembly and alignment requirements for the girder assemblies using relatively few and removable positioning fixtures. Girder assembly and alignment will be accomplished in four phases. Each of these phases will be described along with the fixtures required.

Research on ground vibration of the Shanghai Synchrotron Radiation Facility

2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
X. Wang ◽  
H. Du ◽  
Z. Yan ◽  
L. Yin
Keyword(s):  
Synchrotron Radiation ◽  
Light Source ◽  
Ground Vibration ◽  
Vibration Measurement ◽  
Light Sources ◽  
Third Generation ◽  
Shanghai Synchrotron Radiation Facility ◽  
Attenuation Effect ◽  
Air Conditioners ◽  
Measurement Results

Ground vibration is a key issue for the Shanghai Synchrotron Radiation Facility (SSRF), which is a third-generation light source under commissioning. However, the ground vibration of the SSRF is much larger than other light sources for relatively softer soil and deeper bedrock. More than 1000 piles with 0.6 m diameter down to 48 m underground, and slabs of 1450 mm thickness for the storage ring tunnel and the experiment hall, have been used to attenuate the ground vibration. Measurement results show that these piles and slab have obvious attenuation effect for the vibration induced by nearby vehicles and air conditioners. The coherences with respect to different distances are also carried out.

Photon Science at Accelerator-Based Light Sources

2010 ◽  
Vol 03 (01) ◽  
pp. 13-37 ◽  
Author(s):  
Jochen R. Schneider
Keyword(s):  
Storage Ring ◽  
Free Electron ◽  
Light Sources ◽  
Spectral Brightness ◽  
Third Generation ◽  
Free Electron Lasers ◽  
X Ray ◽  
Single Pass ◽  
The 1960S ◽  
Photon Science

Accelerator-based light sources stimulated progress in photon science in a truly extraordinary manner. The spectral brightness of storage-ring-based facilities increased by three orders of magnitude every 10 years since the 1960s. The extreme peak brightness at single-pass free electron X-ray lasers with pulse durations variable between about 1 and 300 femtoseconds will allow transformative experiments in many areas of science. This article is an attempt to show how progress in accelerator science and technology stimulated advancement in photon science, by discussing a limited number of examples of work at third generation storage ring facilities and free electron lasers. Hopes for further improvements in specific beam properties are expressed.

scholarly journals Comparative study of hard X-ray undulator beamline performance in the Korean 4GSR and the PLS-II

2021 ◽  
Author(s):  
Byeong-Gwan Cho ◽  
Yongsam Kim ◽  
Seunghwan Shin ◽  
Tae-Yeong Koo
Keyword(s):  
Comparative Study ◽  
Light Source ◽  
Storage Ring ◽  
Early Stage ◽  
Light Sources ◽  
X Rays ◽  
X Ray ◽  
Edge Diffraction ◽  
Wave Nature ◽  
Pohang Light Source

AbstractA new light source based on the electron storage ring, dubbed the “diffraction-limited storage ring” (DLSR) to keep the full intrinsic wave nature of X-rays had been proposed since the early stage of storage ring history and has finally been developed successfully, and an upgrade and a new construction programs have now chosen in the worldwide synchrotron facilities. The construction of the so-called “4th generation storage ring” (4GSR), which is a newly-coined term aiming in the same direction, was decided in Korea. The Korean 4GSR is expected to be 10–100 times brighter than the Pohang Light Source-II (PLS-II). Hard X-ray undulator beamlines will benefit from the 4GSR due to its low emittance approaching the diffraction limit. In the PLS-II, more than 10 hard X-ray undulator beamlines are currently in operation. We present a comparative study of the representative hard X-ray undulator beamlines by using the cutting-edge diffraction-spectroscopy techniques in the PLS-II and the 4GSR for better understanding the upcoming light source in Korea. The figures-of-merit of the two specific experimental techniques, resonant inelastic X-ray scattering (RIXS) and resonant X-ray emission spectroscopy (RXES), are discussed for comparison of the two light sources. Both RIXS and RXES are sometimes referred to as a “renaissance” in X-ray science and are, therefore, strongly expected to be adopted in the 4GSR beamlines.

Cospas-Sarsat Satellite System for Search and Rescue

2011 ◽  
pp. 69-87 ◽  
Author(s):  
James V. King
Keyword(s):  
Satellite System ◽  
Search And Rescue ◽  
Current Status ◽  
Emergency Situations ◽  
The World ◽  
The Future ◽  
Development And Evolution

This chapter outlines the development and evolution of the Cospas-Sarsat system, describes the principle of operation, presents the current status and looks at the future of the system. Cospas-Sarsat, an international satellite system for search and rescue, started operating in 1982 and has been credited with saving many thousands of lives since then. More than a million aviators, mariners and land users worldwide are equipped with Cospas-Sarsat distress beacons that could help save their lives in emergency situations anywhere in the world. A constellation of satellites is circling the globe monitoring for distress signals, while tracking stations on six continents receive the satellite signals, compute the location of the emergency and quickly forward the distress alert information to the appropriate rescue authorities. This is a big improvement over the pre-satellite era, when distress signals from remote regions or far out at sea might not have been heard for many days or even weeks.

scholarly journals The GRAPE project: Current Status and Future Outlook

2003 ◽  
Vol 208 ◽  
pp. 13-24
Author(s):  
Junichiro Makino
Keyword(s):  
Present Status ◽  
Large Scale ◽  
Parallel Architecture ◽  
Current Status ◽  
Next Generation ◽  
Future Outlook ◽  
The Future ◽  
Peak Speed

I'll briefly overview the present status and the future of the GRAPE project. GRAPE (GRAvity PiPE) project is a project to design, develop and use special-purpose computers for astrophysical N-body simulations to do large-scale N-body simulations. Our first machine, GRAPE-1 was completed in 1989 and offered the speed of 240 Mflops. Since then, we have continued to develop newer and faster machines, and the newest machine, the GRAPE-6, has achieved the peak speed of 32 Tflops. I'll briefly discuss GRAPE-6 and its parallel architecture, and then discuss the possible form of GRAPE-7, the next generation machines.

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