Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Joseph Gubeli"'
Publikováno v:
Infrared Remote Sensing and Instrumentation XXX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a5de783440d3431f5979a20b355297e
https://doi.org/10.1117/12.2634967
https://doi.org/10.1117/12.2634967
Autor:
Yan Wang, M. Tiefenback, Riad Suleiman, Carlos Hernandez-Garcia, M. A. Mamun, G. Palacios-Serrano, Helmut Baumgart, J. Jordan, Shukui Zhang, Philip Adderley, Joseph Grames, J. Hansknecht, Jay Benesch, R. Montoya Soto, B. Bullard, M. Poelker, Geoffrey Krafft, C. A. Valerio Lizarraga, Joseph Gubeli, A. Canales Ramos, R. Kazimi, S. Wijethunga, F. E. Hannon, Marcy Stutzman, J. Yoskowitz
Publikováno v:
Physical Review Accelerators and Beams. 22
This contribution describes the latest milestones of a multiyear program to build and operate a compact $\ensuremath{-}300\text{ }\text{ }\mathrm{kV}$ dc high voltage photogun with inverted insulator geometry and alkali-antimonide photocathodes. Phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a346bae49a5ec7acc5853dffea5f7c45
https://doi.org/10.1103/physrevaccelbeams.22.113401
https://doi.org/10.1103/physrevaccelbeams.22.113401
Autor:
Gustavious P. Williams, George R. Neil, J. M. Klopf, F. Dylla, Chris Tennant, Shukui Zhang, Carlos Hernandez-Garcia, C. R. Gould, D. Bullard, S.V. Benson, G.H. Biallas, W. Moore, R. Walker, T. Powers, M. Shinn, James Coleman, Pavel Evtushenko, Joseph Gubeli, Robin J. Evans, Kevin Jordan, Daniel Sexton, David Douglas, A. Grippo, Joseph Preble, James Boyce, David Hardy
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 582:14-17
A new generation of light sources is now coming on line to address more fundamental scientific challenges in the realms of the ultra-small and ultra-fast, as well as in dynamics. At Jefferson Lab we have developed an Energy Recovered Linac [1,2] base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b31d66c5dd1714045d9bf6f65aecfb2b
https://doi.org/10.1016/j.nima.2007.08.088
https://doi.org/10.1016/j.nima.2007.08.088
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7975e811fdc09ee4daef091828b81ee
https://doi.org/10.1016/j.nima.2005.10.047
https://doi.org/10.1016/j.nima.2005.10.047
Autor:
Daniel W. Hewak, A. Grippo, Harvey N. Rutt, Marco N. Petrovich, A. Favre, George R. Neil, Kevin C. Jordan, M. Shinn, Joseph Gubeli
Publikováno v:
Journal of Non-Crystalline Solids. :93-97
The optical absorption of bulk Ga:La:S and Ga:La:S:O glasses in the near infrared was investigated by laser calorimetry using the free-electron laser source at the Thomas Jefferson National Accelerator Facility. An absorption coefficient of 1.2 × 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d57978228611cfef18bd0ad561cdd30c
https://doi.org/10.1016/s0022-3093(03)00384-3
https://doi.org/10.1016/s0022-3093(03)00384-3
Autor:
S.V. Benson, E. Feldl, G.R. Baker, George R. Neil, M. Bevins, F.D. Martin, C. Behre, L.A. Dillon-Townes, Joseph Gubeli, Ronald Lassiter, H. F. Dylla, Michelle D. Shinn
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 507:196-199
Jefferson Lab is in the process of upgrading the Free-Electron Laser Facility to provide higher output power as well as broader wavelength and timing flexibility. As part of the upgrade, a new optical cavity is being constructed. Using a near-concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94787f698a9db1a7613cb308ae6e44db
https://doi.org/10.1016/s0168-9002(03)00873-8
https://doi.org/10.1016/s0168-9002(03)00873-8
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 483:434-439
We have previously reported on the analytical calculations ofmirror distortion in a high-power FEL with a nearconcentric cavity. This analysis allowed us to estimate the power level at which the FEL interaction would be affected, though no exact theo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ec7fd9b87b776785a4e100a6f79b272
https://doi.org/10.1016/s0168-9002(02)00357-1
https://doi.org/10.1016/s0168-9002(02)00357-1
Autor:
George R. Neil, Kevin Jordan, H.P. Freund, S. Myers, M. Shinn, G.H. Biallas, Joseph Gubeli, S.V. Benson
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 483:119-124
We have produced and measured for the first time second harmonic oscillation in the infrared region by the high-average-power Jefferson Lab Infrared Free Electron Laser. The finite geometry and beam emittance allows sufficient gain for lasing to occu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aedec8ac812aee91a34bcb7fae1a1953
https://doi.org/10.1016/s0168-9002(02)00295-4
https://doi.org/10.1016/s0168-9002(02)00295-4
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ab20efb17891de01352c35afa631a32
https://doi.org/10.1016/s0168-9002(01)01695-3
https://doi.org/10.1016/s0168-9002(01)01695-3
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 475:276-280
Motivated by the work of Saldin, Schneidmiller and Yurkov, we have measured the detuning curve widths, spectral characteristics, efficiency, and energy spread as a function of the taper for low and high Q resonators in the IR Demo FEL at Jefferson La
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44cea8c8d55f60d567a66030d68aea1a
https://doi.org/10.1016/s0168-9002(01)01620-5
https://doi.org/10.1016/s0168-9002(01)01620-5