The system was baked from May 26 to June 2. Vacuum is 6 ... Mott counting rates look OK. Polarization test next. SIMS on IQE sample. New: anodized/stripped ...
Photocathode R&D. Saxet SBIR. Tested new cathode platter and Ta-disk using AXT bulk GaAs. The new contactor assembly is delivered. New Cesiator is being made. ...
Title: Challenges of present technologies to achieve high average power: DC, RF, SRF Author: chgarcia Last modified by: chgarcia Created Date: 11/8/2004 11:43:07 PM
Sep. 2002 SBIR Phase II awarded (2 year project) ... provides layer-by-layer growth rate feedback ... Structural Analysis using SIMS (Secondary Ion Mass Spectroscopy) ...
Improvements in the QE of photocathodes Peter Townsend University of Sussex Brighton BN1 9QH, UK The basic steps Optical absorption Strongly dependent on composition ...
Beam Position measured to. 25 nm using cavity BPMs. Beam-based alignment ... of the difference between the reading of BPM #2 and the line between BPMs 1 and 3 ...
Using Kovar Rings. Moved to a Cu braze design. 9 leaks, 1 major contamination ... Mounting slot (yellow) Kovar. Carousel plate 2mm. Ti (or 316 St.Steel) ...
The Photocathode Program of the Large Area Picosecond Photo Detector (LAPPD) Project The PC-group (Klaus Attenkofer) What are the Goals & Milestones: Goals: Bridging ...
The electron bunch is compressed by a chicane-type magnetic compressor. ... The short bunch of pump-beam is obtained by the chicane type magnetic compressor. ... Air ...
Polarization comparison of InAlGaAs/GaAs superlattice photocathodes having low ... Valence Band. LH1. D. E. v. D. E. c. Design of a flat conduction band structure ...
... Surfaces and Thermal Emittance ... Matching the lattice parameters of the substrate and film could ... surfaces for deposition of CsK 2 Sb thin films. Film ...
Quantum Efficiency and Noise III-V and II-VI Photocathodes for UV Astronomy Timothy Norton, Bruce Woodgate, Joseph Stock, (NASA GSFC), Kris Bertness (NIST,CO) and R.D ...
Dissipated 1300 MHz power at cavity Nb wall (assuming unloaded quality factor Qo=1010, 2K) ... stem in back cavity wall (optimized to create optimal RF focusing) ...
Goal: Deliver high average current ( 1mA) and high polarization ... Enhance our understanding of photocathode ... UHV IP supplies gauge activation. Keyed ...
Thomas Jefferson National Accelerator Facility. J. Grames, SPIN'06, Oct. 2-9, Kyoto, JAPAN ... operational lifetime in support of new accelerator initiatives. ...
180 uA and polarization 80% Parity quality Long experiment Success requires: Superlattice photocathodes High power, reliable modelocked Ti-Sapphire laser
Development and Production of Photocathodes for the CLIC Test Facility G. Suberlucq CERN - Geneva CTF experiment Participants of photocathode measurements
Status of Cathode System in FZR Photocathode preparation and test of the cathode cooling system Rong Xiang FZ Rossendorf, Dresden Cathode System in SRF Project ...
Axial Power Input in Photocathode Electron Guns D. Janssen, FZR, Germany, V. Volkov, BINP, Novosibirsk, Russia, New SRF Gun Cavity design New SRF Gun Cavity ...
May be recorded (barium swallow examinations) or unrecorded (catheter positioning) ... The photocathode (a thin layer of antimony and alkali metals, such as Sb2S3) ...
... area CsI photocathodes (PCs) immediately after the deposition: scanning ... All scanning motions and photo-current. readout-electronics are equipped with a ...
Recent Polarized Photocathode R&D at SLAC D.-A. Luh, A. Brachmann, J. E. Clendenin, T. Desikan, E. L. Garwin, S. Harvey, R. E. Kirby, T. Maruyama, and C. Y. Prescott
... photoemission from a Gallium Arsenside crystal inside a ... Gallium Arsenide Photocathodes ... Optical pumping Gallium Arsenide between P and S. 3/2. 1/2 ...
Gun & Laser Status Joe Grames Updates G0 Tiger Laser High Polarization Photocathodes Mott polarimeter Injector Test Stand G0 Beamline Upgrades to G0 Tiger Laser Tiger ...
Our Scintillators are made out of a hard plastic containing an organic dye. ... Then, the electrons produced by the photocathode are bounced from dynode to dynode. ...
... Employ Schottky effect in the RF photocathode gun and with low energy photons This technique may produce an electron beam with ultra-low intrinsic emittance ...
INJECTOR Electron bunches are generated when the GaAs photocathode is illuminated by pulses of green light from a drive laser The JLab FEL is driven by a 350 kV DC ...
PhotoCathode crucibles plane distance: 42 cm. 4 mm Ni 1 mm Au support. crucible quantity: 0.8 g weight each one, corresponding to ~ 320 nm thickness ...
The stability and reliability of the photocathode RF gun is dominated by the laser system. Our experience shows good and on-line diagnostics is critical for the ...
... is typical for borosilicate glasses Standard AR coating is bad for LAPD - need re-optimization or don t use AR coating?? Graded Film, Porous Borosilicate, ...
Polarized Photoguns and Prospects for Higher Current More specifically: What will it take to provide 1 mA at 85% polarization? M. Poelker Jefferson Lab
Homemade Ti:Sap lasers or diodes. Vacuum not well understood. Leaks in load-locked gun prototype ... Load locked gun utilizing vacuum improvements will be ...
Title: PowerPoint Presentation Author: adminccs Last modified by: k. harkay Created Date: 3/7/2006 7:24:44 PM Document presentation format: On-screen Show
A 4th electrode (bleeder) needed to achieve unique mapping. Simulation with MAFIA and SIMION: ... Without bleeder. With bleeder. Apollo Go Development of RICH ...
Development of High-Average-Brightness Sources (Injectors, Cathodes & Lasers) D.C. Nguyen Los Alamos National Laboratory A.M.M. Todd Advanced Energy Systems
o Vacuum Tube Technology. o Full Moon Operation. ... ITT's advanced technology and processing enable us to give our customers products with outstanding sensitivity.
contract #DE-FG02-07ER86329 (Phase I) contract #DE-FG02-07ER86330 (Phase I and II) ... Antimony-based SLs for Polarized Electron Emitters. Develop structure based on ...