Cs2te photocathode
WebAug 26, 2007 · Abstract and Figures. Cesium telluride (Cs2Te) photocathodes are used as sources for electron beams because of their high quantum efficiency (QE) and their ability to release high peak … WebMar 8, 2024 · Femtosecond response time measurements of a Cs2Te photocathode. ... 90012-5 beams from a photocathode by a laser pulse. By placing this cathode inside a radio frequency (RF) accelerating cavity, the photoelectron gun, the electrons are accelerated with accelerating fields of tens of MV/m immediately after emission. To …
Cs2te photocathode
Did you know?
WebOct 8, 2010 · The paper introduces the structure of Cs 2 Te ultraviolet image intensifier. The manufacturing procedure is introduced briefly, include the procedure of front group and back group. Its spectral response characteristic is measured with a specially designed spectral response measuring system, the quantum efficiency is calculated, the diffusing length of … WebCs2Te photocathode. The high-field (> 80 MV /m) photoinjector has a large area, high quantum efficiency Cs2Te photocathode (diameter > 30 mm). The photocathode, a …
WebApr 1, 1994 · Photocathode preparation Some of the discrepancies seen by various investiga- tors must be due to the quality of the CsI photocath- odes. While we have made many photocathodes and still see unexplained variations, we do feel that the starting material and the deposition techniques used are important. As has been discussed in an … WebAug 1, 2008 · A Cs 2 Te photocathode rf gun with a compact load-lock system has been developed and operated at AIST. The electron beam was stably generated with more …
WebMay 1, 2012 · Abstract. A cesium telluride (Cs 2 Te) photocathode with a quantum efficiency of 13% at 253.7 nm (radiant incidence 200 μW/cm 2) is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The cesium telluride cathode will be used to provide a high-brightness electron beam source for the 3+1/2 photo-injector at ...
Webhas a large area, high QE Cesium telluride photocathode (di-ameter > 30 mm). The photocathode, a crucial component of the upgraded facility, is fabricated on-site. The photoin-jector generates high-charge, short pulse, single bunches (Q > 100 nC) and long bunch-trains (Q > 600 nC) for wake eld experiments. The performance of the …
WebAug 24, 2024 · Ab initio Quantum-Mechanical methods are well-established tools for material characterization and discovery in many technological areas. Recently, state-of-the-art approaches based on density-functional theory and many-body perturbation theory were successfully applied to semiconducting alkali antimonides and tellurides, which are … simply plumbing fleetWebAug 7, 2014 · Cs2Te and NEA GaAs photocathode activities at Fermilab Raymond Fliller FNAL Workshop on High Quantum Efficiency Photocathodes for RF guns INFN Milano - LASA4-6 October 2006. Past and Current Activities • A0 Photoinjector • Time Dependant QE with Cs2Te • Secondary Emission studies • NML • New photoinjector built to be an ILC … ray treatWebDec 8, 2024 · Later in the 90s, we developed a split system to physically separate the photocathode production system from the RF gun. The advantage of this solution is the possibility to do photocathode preparation without interfering with the machine operation, very important when the photocathode are used in accelerator dedicated to user as the … ray trebinoWebCurrent Weather. 5:11 AM. 47° F. RealFeel® 48°. Air Quality Excellent. Wind NE 2 mph. Wind Gusts 5 mph. Clear More Details. simply plumbing coupon codeWebCs2Te PHOTOCATHODE LIFETIME AT FLASH AND EUROPEAN XFEL. S. Lederer , S. Schreiber Deutsches Elektronen-Synchrotron, Hamburg, Germany Abstract. The … simply plumbing discount codeWebThe photocathode is one of the key components of pho-toinjectors. The performances of the photocathode, includ-ing quantum eciency (QE), thermal emittance, response time, dark current and life time, are closely related to the photoinjector performance and its subsystems, such as the photocathode laser, gun gradient, vacuum, and injector emit ... raytreck 一覧WebOct 15, 2024 · The evolution of the diffraction pattern from both the sequential growth and the co-deposition is illustrated in FIGS. 6A-6C and 7A-7B. FIGS. 6A-6C depict graphs illustrating structural evolution of a sequentially grown CsTe photocathode with plots where FIG. 6A illustrates the thickness increases of each deposition step recorded by the QCM; … raytreak