Z-cut Quartz vacuum viewports and windows transmits far infrared and terahertz radiation sales@dmphotonics.com Del Mar Photonics offer a range of competitively priced UHV viewports, Conflat, ISO or KF including a variety of coatings to enhance performance. When you send us your inquiry please fill out the following form to indicate all important specifications and e-mail it to us with your inquiry. http://www.dmphotonics.com/Zinc-selenide-ZnSe-vacuum-viewport/vacuum-viewports-ZnSe.htm Del Mar Photonics viewports are manufactured using advanced techniques for control of special and critical processes, including 100 percent helium leak testing and x-ray measurements for metallization control. Crystal quartz is a very useful material because of its high UV, VIS and NIR transmittance, birefringence, ability to rotate plane polarized light, high damage threshold and resistance to scratching. The optical grade material is featured by highest possible transmittance throughout range 190 – 2900 nm, virtual freedom from bubbles and inclusions, conformity with Military striae Grade A. Featured customer: A user facility for the advancement of laser and accelerator physics The Accelerator Test Facility provides experimenters with the equipment necessary for the advancement of accelerator technologies, with a view to develop smaller machines and more cost-effective methods of particle acceleration. The ATF provides a very high brightness electron beam to four beam lines, synchronized with high-power lasers. The electrons are produced by a photoinjector, whose photocathode is illuminated by a frequency quadrupled solid-state laser. Two S-band linear accelerator sections accelerate the electrons. The beam can be manipulated in the transport line to deliver it to one of several targets in the experimental hall. There are more than 40 quadrupoles along four transport lines to tailor the beam to particular experiments. More than 50 high-resolution profile monitors measure the beam’s particle distribution. Plasma Wakefield Acceleration is a method for accelerating particle beams over much shorter distances than traditional accelerators. An electron bunch travelling through a plasma creates wakefields through which subsequent electron bunches may be accelerated at a high gradient. This technique produces more compact, more energy-efficient high-energy particle beams. Medical Imaging. Interaction of the ATF electron beam with the CO2 laser is a viable source of fast x-rays with wavelengths on the scale of pico- or femtoseconds. These x-rays have uses in ultrafast imaging, positron production, and many other applications. Ion Generation. MeV proton beams generated by CO2 laser pulses focused on a hydrogen gas jet have potential uses in positron emission tomography and hadron cancer therapy. A time-resolved optical diagnostic provides new insight into the physics of laser-plasma interactions at supercritical densities. Research Opportunities There are numerous research opportunities for post-doctoral fellows at the ATF. These include work on laser-photocathode RF guns, various laser accelerator and FEL experiments, high power laser development (e.g. our unique compact CO2 terawatt laser) and more. If you have a postdoctoral fellowship and you are looking for an exciting place to work, contact the ATF for more details. The ATF also occasionally provides research assistantships for qualified Ph.D. students. PHYSICS AND APPLICATIONS OF HIGH BRIGHTNESS BEAMS: TOWARDS A FIFTH GENERATION LIGHT SOURCE Energy Measurement at Exit of rf Photoinjector Electron energy at the exit of rf photoinjector is measured by the following two steps. First, an electron pulse is kicked by a trim coil inside the photoinjector and the electron position at the exit of the photoinjector is observed. Next, the measured position is put into a MAD input file and the electron energy is fitted by MAD. Since the two coils are partially overlapped, the coils are independently divided into tens of slices and each slice is placed reciprocally. Longitudinal Beam Profile Measurements In order to measure longitudinal beam profile is used coherent transition radiation from the electron beam. ATF has interferometer, Golay cell and bolometer to measure the longitudinal profile. z-cut quartz windows z cut quartz definition z cut quartz rotator
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