Results 1 - 10 of 5953
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[en] The forces on a rippled single layer coil are exactly calculated. The ripple shape is changed in a series of interations to arrive at constant tension zero bending shape. Analytical expressions and numerical methods are included
[en] The claim that the model of a pair of fictitious magnetic charges, described in our recent paper, is that of an infinitely thin solenoid is a mistake, mainly based on misinterpretation of certain figures therein. (reply)
[en] A large number of solenoids have been installed in the KEKB LER to remove the electron cloud. This paper describes recent solenoid winding work and the effect of it on electron cloud effects
[en] We describe a correcting operator for those pseudo-orbits of the quadratic complex Hénon map that remain bounded away from the origin by an amount that depends on the map. The iterates of the operator converge to a holomorphic motion that respects the dynamics. This computational procedure is then applied in the contexts of horseshoes and solenoids
[en] Avalanche PhotoDiodes (APDs), invented in the year 1952 by Jun-ichi Nishizawa, are devices which use 'photoelectric' phenomenon to detect photons. APDs have an internal electric field (>105 V/cm) which helps in avalanche multiplication of charge carriers generated by the interaction of photons within the detector and hence they are the perfect candidate to detect weak scintillation light signals. APDs have found suitable applications in existing High Energy Physics (HEP) experiments like Compact Muon Solenoid (CMS) at CERN. The goal of this study is to investigate the influence of different values of annealing bias voltage on designated annealing parameters like the time constant of trap recovery, the rate of change of current and current amplitude after γ-irradiation
[en] A superconducting solenoid with a conductive bore tube is under construction for use with the time projection chamber (TPC) detector at PEP. It will have a uniform induction of 1.5 T over a 6.3 m3 volume. Its stored energy will be 11 MJ. A radiation thickness of 0.3 radiation lengths well be maintained for the coil package. The coil will operate at a current density of 7x108 Am-2 and it will be cooled by force flow two phase helium in a tube. The final design details are given
[en] A high efficiency interleaved bi-directional ZVS DC-DC converter is presented in this paper. This converter can be operated in both buck and boost mode. CoolMOS is used as a power device to achieve low conduction losses and fast turn off. The value of inductance is selected such that the CoolMOS drain-to-source voltage always falls to zero before it turns on and ZVS is achieved. Multiphase interleaved inductors are used to achieve high power and low ripple currents. Converter is operated at 50kHz and MATLAB Simulink simulation is performed. 6kW prototype converter is implemented in buck mode and simulation results are verified.
[en] A channel for 6D ionization cooling of muons is described which consists of periodically inclined solenoids of alternating polarity, liquid hydrogen absorbers placed inside solenoids and RF cavities between them. Important feature of such channel (called Helical FOFO snake) is that it can cool simultaneously muons of both signs. Theoretical considerations as well as results of simulations with G4Beamline are presented which show that 200MHz HFOFO snake has sufficient acceptance to be used for initial 6D cooling in muon colliders and neutrino factories.