A5041640217- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Advanced X-ray Imaging Techniques
- Particle Detector Development and Performance
- Pulsed Power Technology Applications
- Microwave Engineering and Waveguides
- Photocathodes and Microchannel Plates
- Experimental Learning in Engineering
- Advancements in Photolithography Techniques
- Photonic and Optical Devices
- Advanced Electron Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Astronomical Observations and Instrumentation
- Wireless Communication Networks Research
- Musicology and Musical Analysis
- Satellite Communication Systems
- Diverse Musicological Studies
- Plasma Diagnostics and Applications
- Laser Design and Applications
- Induction Heating and Inverter Technology
- Silicon Carbide Semiconductor Technologies
Deutsches Elektronen-Synchrotron DESY
2007-2020
High Energy Accelerator Research Organization
2004-2006
Budker Institute of Nuclear Physics
1995-2004
Institute for High Energy Physics
1999-2003
Stanford Synchrotron Radiation Lightsource
2000
SLAC National Accelerator Laboratory
2000
The photoinjector test facility at DESY, Zeuthen site (PITZ), was built to develop and optimize photoelectron sources for superconducting linacs high-brilliance, short-wavelength free-electron laser (FEL) applications like the in Hamburg (FLASH) European x-ray (XFEL). In this paper, detailed characterization of two laser-driven rf guns with different operating conditions is described. One experimental optimization beam parameters performed an accelerating gradient about $43\text{ }\text{...
For high luminosity in electron-positron linear colliders, it is essential to generate low vertical emittance beams. We report on the smallest achieved single-bunch-mode operation of Accelerator Test Facility, which satisfies requirement x-band collider. The emittances were measured with a laser-wire beam-profile monitor installed damping ring. bunch length and momentum spread beam also recorded under same conditions. rms at intensity 4 pm energy 1.3 GeV, corresponds normalized 1.0x1.0(-8)...
We have developed a high-resolution cavity-beam position monitor (BPM) to be used at the focal point of ATF2, which is test beam line that now being built demonstrate stable orbit control $\ensuremath{\sim}\mathrm{\text{nanometer}}$ resolution. The design cavity structure was optimized for Accelerator Test Facility (ATF) in various ways. For example, has rectangular shape order isolate two dipole modes orthogonal directions, and relatively thin gap less sensitive trajectory inclination. A...
Electron beams with the lowest, normalized transverse emittance recorded so far were produced and confirmed in single-bunch-mode operation of Accelerator Test Facility at KEK. We established a tuning method damping ring which achieves small vertical dispersion x-y orbit coupling. The was less than 1% horizontal emittance. At zero-intensity limit, 2.8 x 10(-8) rad m beam energy 1.3 GeV. high intensity, strong effects intrabeam scattering observed, had been expected view extremely particle...
The driving engine of the free electron laser in Hamburg (FLASH) is an L-band superconducting accelerator. It designed to operate burst mode with 800-ms pulse duration at a repetition rate 10 Hz. maximum accelerated beam current during macropulse 9 mA. Our analysis shows that FLASH technology has great potential since it possible construct FLASH-like operating wavelength 13.5 and 6.8 nm average power up 2.6 kW. Such source meets physical requirements for light next-generation lithography.
The use of ${\mathrm{TE}}_{12}$ in circular waveguide with smooth walls was suggested for low-loss transport rf signals multimoded systems [S. G. Tantawi et al., Advanced Accelerator Concepts: Eighth Workshop, edited by Wes Lawson, AIP Conf. Proc. No. 472 (AIP, New York, 1999), pp. 967--974]. Such the same to different over modes. In this report we detail a series experiments designed measure characteristics mode. We also describe techniques used generate it and receive it. were done at $X$...
Future linear colliders have hard requirements for the beam transverse position stability in accelerator. A monitor (BPM) with resolution better than 0.1 micron single bunch regime is needed to control of along linac. Proposed BPM based on measurement asymmetrical mode excited by a cavity. Four stages signal processing (space-, time-, frequency- and phase-filtering providing required signal-to-noise ratio) are used obtain extremely high resolution. The set-up was designed BINP installed at...
The FLASH linac at DESY in Hamburg is a superconducting linear accelerator which provides an electron beam to generate laser light the nm-regime. Five RF stations provide power up 10 MW and accelerate lGeV gun forty-eight nine-cell cavities, respectively. Several bouncer type modulators produce HV-pulses 130 kV, 140 A 1.5 ms Hz for 1.3 GHz klystrons multi-beam of linac. first have been constructed delivered several years ago by FNAL TESLA Test Facility DESY, now Later additional assembled...
For the European XFEL project multi-beam klystrons, which can produce RF power of 10 MW, at an frequency 1.3 GHz, 1.5ms pulse length and 10Hz repetition rate, were chosen as sources. So far we have three companies this kind new klystron. At DESY installed a test stand dedicated for testing type source. tested several tubes from Thales (TH1801), Toshiba (E3736) CPI (VKL8301) in our stand. In paper give overview facilities summarize current results L-band klystrons (MBK).
Vacuum-tube amplifiers are the most widespread type of radio frequency (RF) sources used to produce high-power signals needed for beam acceleration in superconducting cavities. At Deutsches Elektronen-Synchrotron (DESY), megawatt-rated klystrons millisecond-long RF shots pulsed operation particle accelerators. In contrast, inductive output tubes (IOTs) provide a continuous signal continuous-wave (CW) operation. both cases, suffer from amplitude-dependent nonlinearity between driving and...
Linear collider (LC) interaction region beam sizes and component position stability requirements are expected to be a few nanometers. It is important show that the related tolerances can achieved, with an electron if possible. Using recently developed stabilization technology, very high-resolution monitors (BPM's), ultra-low emittance at KEK ATF, we plan demonstrate required stabilization. Our first step develop RF cavity monitors, using either C or X band frequencies. A C-band BPM...
The driving engine of the superconducting accelerator European X-ray Free-Electron Laser (XFEL) are 27 Radio Frequency (RF) stations. Each an underground RF station consists from multi-beam horizontal klystron which can provide up to 10MW power at 1.3GHz. Klystrons sensitive devices with limited lifetime and high mean time between failures. In real operation tube be thoroughly reduced by To minimize influence service conditions klystrons special fast protection system named as Klystron...
The driving engine of the Free Electron Laser in Hamburg (FLASH) is an L-band superconducting accelerator. It designed to operate burst mode with 800 microsecond pulse duration at a repetition rate 10 Hz. maximum accelerated beam current during macropulse 9 mA. Our analysis shows that FLASH technology has great potential since it possible construct like free electron laser operating wavelength 13.5 and 6.8 nanometer average power up 2.6 kW. Such source meets physical requirements for light...