Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Harald Genz"'
Autor:
Hans-Dieter Gräf, Sergiy Khodyachykh, Mikhail Yurkov, Vivek Asgekar, Harald Genz, Achim Richter, C. Hessler, E.L. Saldin, Evgeny Schneidmiller, M. Brunken, Thorsten Wesp
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 530:205-216
The aim of the present work is to investigate the influence of a tapered undulator on the main parameters of an free electron laser (FEL). The experiments were carried out at the Darmstadt FEL at an electron beam energy of 31 MeV and a wavelength of
Publikováno v:
Optics & Laser Technology. 35:349-353
A compact autocorrelator suitable for the measurement of the optical pulse length of the infrared free electron laser (IR-FEL) at the S-DALINAC is described. It allows to investigate the energy transfer process from the electrons into the laser light
Autor:
Achim Richter, Harald Genz, Theodor Tschudi, K. Gerstner, Hans-Dieter Gräf, Rainer Hahn, Bernd Schweizer, H. Jennewein
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 498:22-28
A simple method for an absolute measurement of the cavity length of a Free Electron Laser (FEL) with a non-contact optical technique is presented. The injection current of a semiconductor laser diode is modulated with a proper frequency and amplitude
Autor:
Achim Richter, Gerd W. Buschhorn, Victor L. Morokhovskii, J. They, D. Pugachov, Rainer Kotthaus, Harald Genz, Andriy Ushakov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 201:55-66
Polarization properties of coherent polarization X-radiation produced by a low-emittance electron beam of 72 MeV interacting with a silicon monocrystal have been investigated experimentally at the superconducting Darmstadt linear accelerator S-DALINA
Autor:
Achim Richter, Victor L. Morokhovskii, J. They, G. Buschhorn, A. Ushakov, Harald Genz, D. Pugachov, Rainer Kotthaus
Publikováno v:
Physics Letters A. 286:70-75
Polarization properties of coherent X-radiation produced by 72 MeV electrons interacting with a silicon monocrystal have been investigated experimentally at the superconducting Darmstadt linear accelerator S-DALINAC. Spatially resolved measurements o
Autor:
V. V. Morokhovskyi, V. L. Morokhovskii, Achim Richter, Harald Genz, J. P. F. Sellschop, J. Freudenberger
Publikováno v:
Physical Review B. 61:3347-3352
Parametric X radiation (PXR) produced by electrons with an energy of ${E}_{0}=4 \mathrm{MeV}$ interacting with the atoms in the (220) plane of a $20\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ silicon and a $55\ensuremath{-}\ensuremath{\mu}\mathrm{m}$ d
Publikováno v:
Physical Review Letters. 84:270-273
Parametric x rays (PXR) produced by bombarding silicon and diamond crystals with electrons of 30 to 87 MeV were detected at $180\ifmmode^\circ\else\textdegree\fi{}$ relative to the direction of the electron beam. It was found that the dependence of t
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 152:479-493
Channeling radiation from relativistic electrons has been measured in germanium at low electron energies (6.00, 9.00 and 10.18 MeV) using a 20 μm thick germanium crystal at the Darmstadt superconducting linear accelerator S-DALINAC. The results of t
Autor:
B. Schweizer, Achim Richter, A. Stascheck, T. Wesp, H. Loos, Ralf Eichhorn, Harald Genz, Hans-Dieter Gräf, Steffen Döbert, M. Brunken
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 429:21-26
The Darmstadt cw FEL designed for wavelengths between 3 and 10 μm driven by the superconducting electron accelerator S-DALINAC first lased on December 1st, 1996 and has operated thereafter successfully in the wavelength region between 6.6 and 7.8 μ
Autor:
V. V. Morokhovskii, M. Rzepka, J. Freudenberger, Achim Richter, P. M. Weinmann, G. Buschhorn, Rainer Kotthaus, Harald Genz, Klaus Schmidt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 145:14-18
Polarization properties of parametric X radiation (PXR) have been investigated theoretically and experimentally at the S-DALINAC. For the first time analytical expressions describing the polarization properties of PXR have been derived. PXR is – un