Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Design is complete and fabrication and assembly are nearing completion on a 350 MHz, 200 kW CW, multiple beam inductive output tube (MBIOT). Seven electron guns in a circular array will be driven by a single input cavity. RF power is generated in a single, fundamental mode, output cavity. The device is predicted to achieve approximately 70% efficiency with 23 dB gain.
This paper will describe the new feature, temporal particle-in-cell analysis in Beam Optics Analyzer in detail. Algorithms for pushing particles and field solution will be discussed. Numerical results for a diode as well as a gridded electron gun will demonstrate the implementation.
An automated, GUI-accessible optimizer has been implemented into Beam Optics Analyzer; the optimizer uses iterative methods to model electron guns and surface electric fields. Beam Optics Analyzer (BOA) is an adaptive mesh, finite element, charged particle trajectory modeling tool for designing 3D electron devices. Previous research included the optimized design of Brillouin focused electron guns...
Fabrication was completed on an X-Band multiple beam klystron (MBK) designed to produce 50 MW of RF power in microsecond pulses. The klystron incorporates a confined flow, multiple beam gun where the cathodes are located relatively far from the device axis. This required unique focusing structures to maintain beam quality. The MBK will be tested at Brookhaven National Laboratories.
An automated, GUI-accessible optimizer has been implemented into Beam Optics Analyzer; the optimizer uses iterative methods to model electron guns and surface electric fields.
Iterative computational design of asymmetrical electron beam devices, such as sheet beam and multiple beam klystrons, requires 3D analysis involving complex geometries. Manual, iterative design is extremely difficult and impractical for all but the simplest devices. Computer optimization tools and techniques are described that provide automated design of these devices using common personal computers...
Final design and fabrication are in progress on a 350 MHz, 200 kW CW, multiple beam, inductive output tube (IOT). The device includes seven electron guns in a circular array. A single input cavity drives the fields for all seven electron guns. RF power is generated in a single output cavity. The device is predicted to achieve approximately 70% efficiency with 22 dB gain.
Electron guns are used in many vacuum electron devices to convert electrical power into an electron beam. Vacuum electron RF sources are critical for national defense and many scientific and industrial applications. In an RF source, the beam energy is converted to energy in an RF wave. The electron gun is a primary component in klystrons, traveling wave tubes (TWTs), gyrotrons, and inductive output...
Calabazas Creek Research, Inc. has a program to develop a gyrotron producing up to 5 kW pulse power at various frequencies from about 600 GHz to 2 THz. The operating mode at 1 THz is TE15.4. The magnetic field is 37.6 Tesla. This is provided by a pulse magnet designed to operate repetitively, with a pulse repetition frequency of about 10 Hz. By reducing the magnetic field, lower order modes can be...
Calabazas Creek Research Inc. (CCR) has a program to develop a 30 GHz gyroklystron for testing advanced accelerator structures. A power of 50 MW is required.The program includes the design of all of the critical elements, including the electron gun, RF structure, collector, input and output couplers and the output window.
Calabazas Creek Research, Inc. is continuing research to improve the quality of magnetron injection guns for gyrotrons. As a result, recent guns demonstrated significantly improved performance. The latest developments to improve the performance while simultaneously reducing the cost is presented
3D electron gun design involves optimization of numerous parameters, including voltage, current, magnetic field, and geometry. The recent availability of parametrically driven solid modeling programs provides opportunity for implementing the entire design process in an optimization loop using the automatic, adaptive meshing capability of beam optics analysis. The results of this development to date...
A design for a 200 MW L band klystron is described. An annular beam is used to minimize the space charge depression of the beam. An efficiency of 40% is predicted by the large signal code KLSC. The modeling of the electron gun and RF structure are discussed
Summary form only given. Calabazas Creek Research, Inc. has completed initial development of an advanced, 3D program for modelling electron trajectories in electromagnetic fields. The code is currently used for designing complex guns and collectors. Beam optics analysis (BOA) is a fully relativistic, charged particle code using adaptive, finite element meshing. We believe this is the most powerful...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.