Zobrazeno 1 - 10
of 52
pro vyhledávání: '"T. Siggins"'
Autor:
L.A. Dillon-Townes, A. Grippo, N. Nishimori, Robin J. Evans, T. Siggins, C. Behre, Robert Rimmer, Kevin Jordan, David Hardy, James Coleman, H. F. Dylla, W. Moore, M. Bevins, Eduard Pozdeyev, Shukui Zhang, Joseph Preble, D. Gruber, Lia Merminga, Carlos Hernandez-Garcia, Gwyn P. Williams, M. J. Kelley, Stephen V. Benson, James Boyce, Michelle D. Shinn, J. Mammosser, R. Walker, David Douglas, Chris Tennant, G.H. Biallas, Joseph Gubeli, George R. Neil
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 557:9-15
A new THz/IR/UV photon source at Jefferson Lab is the first of a new generation of light sources based on an Energy-Recovered, (superconducting) Linac (ERL). The machine has a 160 MeV electron beam and an average current of 10 mA in 75 MHz repetition
Autor:
C. E. Reece, T. Wang, D. Bullard, H. F. Dylla, C. Hernandez, T. Siggins, N. D. Theodore, Dennis M. Manos
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 21:1115-1119
Field-emission studies have been performed on a GaAs wafer and a sample of its stainless-steel (SS) support electrode that are part of a photocathode gun for the 10 kW Upgrade infrared free electron laser at Jefferson Lab. The objective of the studie
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 475:554-558
Jefferson Laboratory's Free Electron Laser (FEL) incorporates a cesiated gallium arsenide (GaAs) DC photocathode gun as its electron source. By using a set of scanning mirrors, the surface of the GaAs wafer is illuminated with a 543.5nm helium–neon
Autor:
Michelle D. Shinn, Philippe Piot, Courtlandt L. Bohn, Richard Hill, Joseph Gubeli, Robin J. Evans, T. Siggins, R. Walker, A. Grippo, Joseph Preble, Byung Yunn, S.V. Benson, George Neil, David Douglas, H. F. Dylla, G.H. Biallas, Kevin Jordan, Rui Li, Geoffrey Krafft, Lia Merminga, J. Fugitt
Publikováno v:
Synchrotron Radiation News. 13:13-17
Autor:
Michelle D. Shinn, Lia Merminga, George R. Neil, Rui Li, Byung Yunn, Geoffrey Krafft, R. Walker, Robin J. Evans, T. Siggins, George Biallas, Kevin Jordan, J. Fugitt, Stephen V. Benson, Richard Hill, J. Preble, Joseph Gubeli, Courtlandt L. Bohn, H.F. Dylla D. Douglas, D. Oepts, Philippe Piot
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 445:192-196
The driver for Jefferson Lab's kW-level infrared free-electron laser (FEL) is a superconducting, recirculating accelerator that recovers 75% of the electron-beam power and converts it to radio frequency power. As reported in FEL'98, the accelerator o
Autor:
Lawrence Dillon-Townes, G. R. Myneni, M. Wiseman, H. F. Dylla, T. Siggins, E. Feldl, S. Williams, G.H. Biallas, J. Parkinson, Joseph Preble
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 17:2113-2118
A high-average power (kW) infrared (IR) free-electron laser (FEL) is currently being commissioned for the Jefferson Laboratory FEL User Facility. The IR FEL is driven by a unique superconducting rf linac which is recirculated to recover electron beam
Autor:
Michelle D. Shinn, Kevin Jordan, Stephen V. Benson, H. F. Dylla, George R. Neil, J. Fugitt, Courtlandt L. Bohn, Byung Yunn, Robin J. Evans, T. Siggins, Rui Li, R. Walker, Richard Hill, J. Preble, David Douglas, Philippe Piot, George Biallas, Geoffrey Krafft, D. Oepts, R. Legg, Lia Merminga
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 429:27-32
As reported previously [1], Jefferson Lab is building a free-electron laser capable of generating a continuous wave kilowatt laser beam. The driver-accelerator consists of a superconducting, energy-recovery accelerator. The initial stage of the progr
Autor:
F. Liu, M.R. Dickinson, Robert A. MacGill, George Biallas, Ian G. Brown, André Anders, Othon R. Monteiro, T. Siggins, L Phillips
Publikováno v:
Surface and Coatings Technology. :46-51
An important technique used for the suppression of high-voltage surface flashover on ceramic insulators as well as for RF windows is to provide some surface conduction to bleed off the accumulated surface charge. We have used metal ion implantation t
Publikováno v:
Proceedings.
We used undrained multi-stage triaxial tests to evaluate how the ultrasonic wave velocities and their anisotropy changed with increasing isotropic and differential stress conditions. In addition, the impact of stress orientation with respect to fabri
Autor:
D. Holmes, D. Douglas, D. Rees, D. Schrage, J.W. Lewellen, Jacek Sekutowicz, D. Nguyen, C. Hernandez-Garcia, Xiangyun Chang, J. Rathke, Ilan Ben-Zvi, S.V. Benson, C.H. Rode, J. Scaduto, R. Wood, P. Colestock, Rama Calaga, Vladimir Litvinenko, D. Janssen, J. Mammosser, V. Nguyen-Tuong, Joseph Preble, T. Siggins, A. Nicoletti, P. Kneisel, M. Falletta, Alan M. M. Todd, E. Peterson, J. Kewisch, A. Zaltsman, R. Campisi, P. Cameron, G.R. Neil, S. Kurennoy, R. Wong, Andrew Burrill, F. Dylla, Larry Phillips, M. Cole, M. Wiseman, Harald Hahn, V. Christina, Dmitry Kayran, T. Schultheiss, T. Srinivasan-Rao, J. Rank, E. Daly, Gary McIntyre, Y. Zhao, J. Hogan, J.P. Kelley, Hans Bluem, R.A. Rimmer, W. Funk, L. Young, K.C. Wu, A. Ambrosio, W. Reass, T. Whitlach, S. Russell
Publikováno v:
INSPIRE-HEP
A key technology issue of energy recovery linac (ERL) devices for high-power free-electron laser (FEL) and fourth generation light sources is the demonstration of reliable, high-brightness, high-power injector operation. Three ongoing programs that t