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Showing 1 to 12 of 12 for “"betatron"”.
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Measurement of energy absorption and ionization in carbon for betatron radiation
… by difficulties peculiar to the use of betatron radiation.
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Laser-Produced Plasmas for Particle Acceleration
… electrons, collimated beams of x-rays, called betatron radiation, are produced during the interaction. The thesis also discusses several ways to enhance important parameters, such as relative energy spread and divergence, of the resulting particle beams, which is important for future …
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Photonuclear reactions near threshold
… studied using the University of Saskatchewan betatron as a source of high energy x-rays. The gamma neutron threholds and reaction cross sections have 100% abundance in one stable isotope. These reactions have been studied by observing the emitted neutrons with a boron trifluoride counter in a …
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Photoproduction of pi�� mesons from He3 with 340 MeV bremsstrahlung
… provided by the 'University of Illinois betatron. The He3 gas was maintained at liquid hydrogen temperature and at a pressure of slightly above one atmosphere. The recoil nuclei were observed with silicon semiconductor detectors. At least one gamma ray from the pion decay was detected …
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Experimental investigation of the emission of high-brightness extreme ultraviolet radiation from laser-plasma interactions
… keV to 1 MeV photons from electrons undergoing betatron oscillations inside the plasma structure. This thesis, in contrast, presents one of the first experimental investigations of radiation emitted at extreme ultraviolet wavelengths approaching the water window. The spectral, spatial and …
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An experimental investigation of the Buneman instability
The Plasma Betatron, a toroidal turbulent heating device, is modified so that a short (200 nsec duration) electric field pulse (maximum strength 650 V/m) is applied to accelerate electrons to a drift velocity vD much larger than the initial thermal velocity VTH. The device has a major radius of 19 …
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Measurement of a weak polarization sensitivity to the beam orbit of the CEBAF accelerator
… of the beam polarization to the vertical betatron orbit in the recirculation arcs. This is the first measurement of any such effect at CEBAF, and provides information about the polarized beam delivery performance of the accelerator. A brief description of the accelerator is given, followed …
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FEL theory in the ION channel wiggler
… between oscillations and emitted field on the betatron amplitude, which must be treated as variable. The ICL model with this essential addition is described using the well-known formalism for the FEL [3]. Both steady-state and spatio-temporal analyses of the resulting scaled equations show a …
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Proton Compton effect for 300 MeV photons
… have been taken at the University of Illinois Betatron using a spark chamber technique. The betatron was run at 335 MeV using the newly installed radio frequency cavity. This allowed measurements to be taken at the maximum of the first pion-nucleon resonance. The bremsstrahlung beam was …
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Photoproduction of neutral pions in helium by 335 MEV Bremsstrahlung
… from the University of Illinois 340 MeV betatron impinged upon a gaseous He4 target cooled to 20.4oK. The recoil nucleus was detected with a semiconductor telescope in coincidence with at least one gamma resulting from the decay of the neutral pion. The particle events were recorded on …
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Photoproduction of charged pions from deuterium near threshold
… an X=ray beam from the University of Illinois betatron was passed through a 14 inch liquid deuterium bubble chamber. Each X ·-ray pulse (E max :: 230 MeV) contained a total energy of about 106 MeV. l'ne X.""ray beam wa.s hardened by means of a. standard beam . hardening technique to reduce the …
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Photoneutron spectra from monoenergetic photons on Pb208 in the giant resonance
… to 16.87 MeV. The University of Illinois 25 MeV betatron and bremsstrahlung monochromator facility were used to produce the gammas and determine their energies within 1.7% (full width). Neutrons above 200 keV were detected with a 5 inch diameter by 2 inch deep glass cell filled with NE213 liquid …