Beamloading compensation of the rf system for the storage ring of the advanced photon source (APS)

1994 ◽  
Author(s):  
J. Bridges ◽  
J. Stepp
Keyword(s):  
Storage Ring ◽  
Rf System ◽  
Photon Source

scholarly journals A New Storage-Ring Light Source

2015 ◽  
Vol 30 (22) ◽  
pp. 1530051 ◽  
Author(s):  
Alex Chao
Keyword(s):  
Steady State ◽  
Storage Ring ◽  
High Power ◽  
Photon Radiation ◽  
Molecular Physics ◽  
Ir Radiation ◽  
Power Sources ◽  
Atomic And Molecular Physics ◽  
Photon Source ◽  
Proof Of Principle

A recently proposed technique in storage ring accelerators is applied to provide potential high-power sources of photon radiation. The technique is based on the steady-state microbunching (SSMB) mechanism. As examples of this application, one may consider a high-power DUV photon source for research in atomic and molecular physics or a high-power EUV radiation source for industrial lithography. A less challenging proof-of-principle test to produce IR radiation using an existing storage ring is also considered.

The advanced photon source pulsed deflecting cavity RF system

2007 ◽  
Author(s):  
A. E. Grelick ◽  
A. Cours ◽  
N. P. DiMonte ◽  
A. Nassiri ◽  
T. L. Smith ◽  
...  
Keyword(s):  
Rf System ◽  
Photon Source

RF system of the SPring-8 storage ring

1998 ◽  
Vol 5 (3) ◽  
pp. 379-381
Author(s):  
Hiroyasu Ego ◽  
Masahiro Hara ◽  
Yoshitaka Kawashima ◽  
Yuji Ohashi ◽  
Takashi Ohshima ◽  
...  
Keyword(s):  
Storage Ring ◽  
Cooling Water ◽  
Higher Order ◽  
Synchrotron Radiation Beam ◽  
Order Mode ◽  
Coupling Impedance ◽  
Radiation Beam ◽  
Rf System ◽  
Higher Order Modes ◽  
Cavity Cooling

Construction of three RF stations in the storage ring of SPring-8 has been completed. The design concept concentrates on avoiding a coupled-bunch instability which limits the stored current or makes the synchrotron radiation beam unstable. The cavity is bell-shaped to reduce the coupling impedance of the higher-order modes. The cavity dimensions are trimmed systematically to distribute the higher-order mode frequencies. Each cavity has two movable tuners. The temperature of the cavity cooling water is controlled within 0.02 K and the water flow is kept constant. The construction and commissioning of the SPring-8 storage ring RF system is reported.

RF system for the Duke 1 GeV storage ring

2002 ◽  
Author(s):  
Ping Wang ◽  
P. Morcombe ◽  
Ying Wu ◽  
G. Kurkin
Keyword(s):  
Storage Ring ◽  
Rf System

Changes to the Advanced Photon Source storage ring as part of the APS renewal project

2010 ◽  
Author(s):  
M. Borland ◽  
G. Decker ◽  
R. Dejus ◽  
K. Harkay ◽  
E. Moog ◽  
...  
Keyword(s):  
Storage Ring ◽  
Renewal Project ◽  
Photon Source

APS Insertion Devices: Recent Developments and Results

1998 ◽  
Vol 5 (3) ◽  
pp. 189-195 ◽  
Author(s):  
Efim Gluskin
Keyword(s):  
Storage Ring ◽  
Magnetic Measurements ◽  
Closed Orbit ◽  
Vacuum Chambers ◽  
Spectral Diagnostics ◽  
Spectral Flux ◽  
Recent Developments ◽  
Magnetic Tuning ◽  
Photon Source ◽  
Good Agreement

The Advanced Photon Source (APS) now has a total of 23 insertion devices (IDs). Over two-thirds of them are installed on the storage ring. The installed devices include 18, 27 and 55 mm-period undulators; an 85 mm-period wiggler; a 16 cm-period elliptical multipole wiggler; and many 33 mm-period undulators. Most of the IDs occupy storage-ring straight sections equipped with 8 mm vertical-aperture vacuum chambers. All of the IDs were measured magnetically at the APS and, in most cases, underwent a final magnetic tuning in order to minimize variation in the various integrals of the field through the ID over the full gap range. Special shimming techniques to correct magnetic field parameters in appropriate gap-dependent ways were developed and applied. Measurements of the closed-orbit distortion as a function of the ID gap variation have been completed, and results are in a good agreement with magnetic measurements. Spectral diagnostics of the ID radiation, including measurements of the absolute spectral flux, brilliance and polarization, show excellent agreement between calculated and measured results. Studies of the sensitivity of IDs to radiation exposure and measurements of the dose rate received by the IDs are in progress.

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