A. Burrill
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View article: The Continuous Electron Beam Accelerator Facility at 12 GeV
The Continuous Electron Beam Accelerator Facility at 12 GeV Open
This review paper describes the energy-upgraded Continuous Electron Beam Accelerator Facility (CEBAF) accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing 88 super…
View article: RF Incoming Inspection of 1.3 GHz Cryomodules for LCLS-II at SLAC National Accelerator Laboratory
RF Incoming Inspection of 1.3 GHz Cryomodules for LCLS-II at SLAC National Accelerator Laboratory Open
The main part of the SRF linac for the Linac Coherent Light Source II (LCLS-II) at SLAC National Accelerator Laboratory will consist of 35 cryomodules with superconducting RF cavities operating at 1.3 GHz. The cryomodules are assembled and…
View article: Industrial Cavity Production: Lessons Learned to Push the Boundaries of Nitrogen-Doping
Industrial Cavity Production: Lessons Learned to Push the Boundaries of Nitrogen-Doping Open
Nitrogen doping has been proven now in several labs to enhance Q₀ values of 1.3 GHz cavities in the gradient domain favored by CW operation. The choice of doping for the LCLS-II project has given the community a wealth of statistics and ex…
View article: 3.9 GHz SRF Production Cavities for LCLS-II
3.9 GHz SRF Production Cavities for LCLS-II Open
The main part of the SRF linac for the Linac Coherent Light Source II (LCLS-II) at SLAC will consist of 35 cryomodules with superconducting RF cavities operating at 1.3 GHz. In addition, two cryomodules with 3.9 GHz cavities will be instal…
View article: The LCLS-II HE High Q and Gradient R Program
The LCLS-II HE High Q and Gradient R Program Open
The LCLS-II HE project is a high energy upgrade to the superconducting LCLS-II linac. It consists of adding twenty additional 1.3 GHz cryomodules to the linac, with cavities operating at a gradient of 20.8 MV/m with a Q₀ of 2.7·10¹⁰. Perfo…
View article: Rework Recipe Development, Analysis and Results of Select 9-Cell Cavities for LCLS-II
Rework Recipe Development, Analysis and Results of Select 9-Cell Cavities for LCLS-II Open
The SLAC National Accelerator Laboratory is currently constructing a major upgrade to its accelerator, the Linac Coherent Light Source II (LCLS-II). Several Department of Energy laboratories, including the Thomas Jefferson National Acceler…
View article: Industrialization of the nitrogen-doping preparation for SRF cavities for LCLS-II
Industrialization of the nitrogen-doping preparation for SRF cavities for LCLS-II Open
The Linac Coherent Light Source II (LCLS-II) is a new state-of-the-art coherent X-ray source being constructed at SLAC National Accelerator Laboratory. It employs 280 superconducting radio frequency (SRF) cavities in order operate in conti…
View article: Status of the LCLS-II Accelerating Cavity Production
Status of the LCLS-II Accelerating Cavity Production Open
Cavity serial production for the LCLS-II 4 GeV CM SRF linac has started. A quantity of 266 accelerating cavities has been ordered from two industrial vendors. Jefferson Laboratory leads the cavity procurement activities for the project and…
View article: RF Performance of Nitrogen-Doped Production SRF Cavities for LCLS-II
RF Performance of Nitrogen-Doped Production SRF Cavities for LCLS-II Open
The Linac Coherent Light Source II (LCLS-II) requires 280 9-cell superconducting RF cavities for operation in continuous wave mode. Two vendors have previously been selected to produce the cavities, Research Instruments GmbH and Ettore Zan…
View article: Challenges in Realizing the LCLS-II Cryomodule Production
Challenges in Realizing the LCLS-II Cryomodule Production Open
The LCLS-II project requires the assembly and installation of 37 cryomodules in order to deliver a 4 GeV electron beam to the undulators to produce both soft and hard x-rays at a repetition rate up to 1 MHz. All of the cryomodules will ope…
View article: Vertical Test Results for the LCLS-II 1.3 GHz First Article Cavities
Vertical Test Results for the LCLS-II 1.3 GHz First Article Cavities Open
The LCLS-II project requires 35 1.3 GHz cryomodules to be installed in the accelerator in order to deliver a 4 GeV electron beam to the undulators hall. These 35 cryomodules will consist of 8 1.3 GHz TESLA style SRF cavities, a design most…
View article: Final Acceptance Test of SRF Photo-Injector Cold String for the BERLinPro Energy Recovery Linac
Final Acceptance Test of SRF Photo-Injector Cold String for the BERLinPro Energy Recovery Linac Open
Helmholtz-Zentrum Berlin (HZB) is currently designing and building an high average current all superconducting CW driven ERL as a prototype to demonstrate low normalized beam emittance of 1 mm·mrad at 100mA and short pulses of about 2 ps. …
View article: First Commissioning of an SRF Photo-Injector Module for BERLinPro
First Commissioning of an SRF Photo-Injector Module for BERLinPro Open
Helmholtz-Zentrum Berlin (HZB) is currently building an high average current superconducting ERL to demonstrate ERL operation with low normalized beam emittance of 1 mm·mrad at 100mA and short pulses of about 2 ps. For the injector section…
View article: The Bessy Vsr Project for Short X-Ray Pulse Production
The Bessy Vsr Project for Short X-Ray Pulse Production Open
HZB has started the innovative project, BESSY VSR, to upgrade the 1.7 GeV synchrotron radiation source BESSY II. Its goal is to provide both 1.7 ps and 15 ps long, intense X-ray pulses simultaneously at all beam lines. These pulses are gen…