A Fourth Generation, Fast Cycling, Conventional Light Source

2007 ◽  
pp. 327-368
Author(s):  
L. Liu ◽  
R. T. Neuenschwander ◽  
A. R. D. Rodrigues

The development of synchrotron radiation sources in Brazil is described from a brief historical point of view followed by a description of the Sirius project, a new 3 GeV fourth-generation synchrotron light source with 518 m circumference and 0.25 nm.rad emittance, in final construction stage at the Brazilian Synchrotron Light Laboratory campus, in Campinas. As one of the pioneer fourth-generation machines, many accelerator engineering challenges were studied in depth and resulted in quite a few innovative developments. In this paper, we review some of these developments. This article is part of the theme issue ‘Fifty years of synchrotron science: achievements and opportunities’.


2005 ◽  
Author(s):  
Wendy R. Flavell ◽  
Frances M. Quinn ◽  
Jim A. Clarke ◽  
Elaine A. Seddon ◽  
Neil R. Thompson ◽  
...  

Author(s):  
G. Baranov ◽  
A. Bogomyagkov ◽  
I. Morozov ◽  
S. Sinyatkin ◽  
E. Levichev

2021 ◽  
Vol 248 ◽  
pp. 01058
Author(s):  
Fumin Shang ◽  
Chaoyue Liu ◽  
Yang Wang ◽  
Kangzhe Yang ◽  
Jianhong Liu

At present, LED lighting is gradually replacing the traditional lighting and becoming the fourth generation of light source. In the process of LED lighting, a large part of electric energy is converted into heat energy. If it can not dissipate heat in time, the device efficiency will be reduced or even damaged. Therefore, the heat dissipation problem of LED needs to be solved. By testing and recording the working temperature of the existing LED lighting radiator in different positions, the performance of the radiator was compared and tested. The experiment shows that the radiator works best when the light source is downward, and the temperature difference between the top and the bottom of the radiator is the smallest in this case, and the temperature at the top of the radiator is higher than that at the bottom in the working process. When the position of the LED lighting radiator changes, the heat dissipation performance of the top and bottom of the radiator changes.


2002 ◽  
Author(s):  
David T. Clarke ◽  
Elaine A. Seddon ◽  
Frances Quinn ◽  
James A. Clarke ◽  
Mark J. Tobin ◽  
...  

2020 ◽  
Vol 15 (1) ◽  
pp. 5-23
Author(s):  
Grigory N. Baranov ◽  
Anton V. Bogomyagkov ◽  
Eugene B. Levichev ◽  
Sergey V. Sinyatkin

We study magnetic lattice and optimize parameters for the fourth generation light source SKIF (Russian acronym of Siberian Circular Photon Source) to be built in Novosibirsk. We consider several lattice cells to achieve both low emittance and large dynamic aperture. The resulting lattice provides the natural emittance of the electron beam of 75 pm for the beam energy of 3 GeV and the orbit circumference of 476 m. Only two families of chromatic sextupoles give the dynamic aperture and energy bandwidth enough for both good beam lifetime and simple effective injection.


2004 ◽  
Vol 16 (26) ◽  
pp. S2405-S2412 ◽  
Author(s):  
W R Flavell ◽  
E A Seddon ◽  
P Weightman ◽  
M A Chesters ◽  
M W Poole ◽  
...  

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