Generation of RF for acceleration

... • Solve Maxwell’s equations for a cylinder (apply boundary conditions) ...

... • Solve Maxwell’s equations for a cylinder (apply boundary conditions) ...

CRAB_for_HL-LHC(KEK_activity)

... LHC-Crab designs have more complicated structures than KEKB-Crab To develop the LHC-crab cavity – Need cavity R&D for high fields and low trip rate • Important to establish surface treatments for complicated structures – Need beam tests ...

... LHC-Crab designs have more complicated structures than KEKB-Crab To develop the LHC-crab cavity – Need cavity R&D for high fields and low trip rate • Important to establish surface treatments for complicated structures – Need beam tests ...

XI. MICROWAVE COMPONENTS R. Fontana J.

... modes have been observed experimentally to be excited with any of the couplings designed to date (1). In order to improve this system, it is desired to excite mainly the perturbed TEM mode. Therefore, an investigation was started to determine the field distribution of each of these two modes (2). ...

... modes have been observed experimentally to be excited with any of the couplings designed to date (1). In order to improve this system, it is desired to excite mainly the perturbed TEM mode. Therefore, an investigation was started to determine the field distribution of each of these two modes (2). ...

higher order mode studies

... b, equator ellipse radii A and B, iris radius Riris and equator radius Req. The wall angle α can be calculated as a derived parameter from these seven independent parameters. For the mid cells, we choose L = g/2, and Req is tuned to achieve the resonant frequency as 650 MHz[1]. ...

... b, equator ellipse radii A and B, iris radius Riris and equator radius Req. The wall angle α can be calculated as a derived parameter from these seven independent parameters. For the mid cells, we choose L = g/2, and Req is tuned to achieve the resonant frequency as 650 MHz[1]. ...

Proposal for nano science and technology project on nitride based

... The III-nitride based optoelectronic devices covers applications from solid state lighting, high density optical data storage (blue/UV lasers) to high speed/power electronics. The III-nitride based LED is considered the most promising device for energy efficient lighting application. This material s ...

... The III-nitride based optoelectronic devices covers applications from solid state lighting, high density optical data storage (blue/UV lasers) to high speed/power electronics. The III-nitride based LED is considered the most promising device for energy efficient lighting application. This material s ...

Geometrical Representation of the Schrodinger Equation for Solving

... classical vector model for spin precession. The extensive and explicit use of rotating coordinate procedures, as was introduced by Bloch, Ramsey, Rabi, and Schwingerl .2 for special kinds of magnetic transitions, is generally applicable in dealing with the r space. INTERPRETATION ...

... classical vector model for spin precession. The extensive and explicit use of rotating coordinate procedures, as was introduced by Bloch, Ramsey, Rabi, and Schwingerl .2 for special kinds of magnetic transitions, is generally applicable in dealing with the r space. INTERPRETATION ...

Investigation of Deuteron-Deuteron Cold Fusion in a Cavity Abstract

... exchange potential must be larger than this lower limit. Which means, in vacuum space the Coulomb barrier dominates over the attraction (due to neutron exchange) at all ranges of deuteron separation. In reference (3) K = 12 (1/f) [larger than the lower limit mentioned above] was chosen to investigat ...

... exchange potential must be larger than this lower limit. Which means, in vacuum space the Coulomb barrier dominates over the attraction (due to neutron exchange) at all ranges of deuteron separation. In reference (3) K = 12 (1/f) [larger than the lower limit mentioned above] was chosen to investigat ...

DOC-Document

... Hz at a signal voltage of 100 mV and giga-ohm sealed impedance was obtained continuously over four days. Finally, the cantilever tip in AFM was utilized to estimate the bilayer thickness and to calculate the rupture force at the interface of the tip and the SLB. We anticipate that a silicon-based, m ...

... Hz at a signal voltage of 100 mV and giga-ohm sealed impedance was obtained continuously over four days. Finally, the cantilever tip in AFM was utilized to estimate the bilayer thickness and to calculate the rupture force at the interface of the tip and the SLB. We anticipate that a silicon-based, m ...

3D Electromagnetic Field Simulation in Microwave Ovens: a Tool to

... the three dimensional space [8, 9], we must solve the Maxwell equations, usually using the Finite Element Method. The technique competes very favourably with the other numerical methods, as it is based on reducing the Maxwell's equations to a system of simultaneous algebraic linear equations [10], a ...

... the three dimensional space [8, 9], we must solve the Maxwell equations, usually using the Finite Element Method. The technique competes very favourably with the other numerical methods, as it is based on reducing the Maxwell's equations to a system of simultaneous algebraic linear equations [10], a ...

MDI: Trapped modes and other power losses

... More information is needed about layers of the beam pipe (Au,Be) Current estimate is 200 W/m ...

... More information is needed about layers of the beam pipe (Au,Be) Current estimate is 200 W/m ...

diffraction_fft_presentation

... Modal model works, just need to ensure you use enough modes Modal model and FFT are identical for all real world examples Seen one option for rigorously simulating complex structures using the FDTD FDTD code is available to anyone who wants to use/play with it! ...

... Modal model works, just need to ensure you use enough modes Modal model and FFT are identical for all real world examples Seen one option for rigorously simulating complex structures using the FDTD FDTD code is available to anyone who wants to use/play with it! ...

Electric and magnetic energy at axion haloscopes

... date [18–22], eq. (1.2) has been used to calculate the form factor of a cylindrical cavity that is centered in and occupies the complete volume of a solenoidal field. Recently, a report [23] pointed out that eq. (1.2) actually corresponds only to electric energy from axion to photon conversions ins ...

... date [18–22], eq. (1.2) has been used to calculate the form factor of a cylindrical cavity that is centered in and occupies the complete volume of a solenoidal field. Recently, a report [23] pointed out that eq. (1.2) actually corresponds only to electric energy from axion to photon conversions ins ...

Experiment 7. Wave Propagation

... 4. Compare your experimentally measured results with calculations of the expected response using Eq. 3 by plotting them on the same polar diagram. 5. How has the directionality of the antenna improved in comparison to the dipole without a reflector? ...

... 4. Compare your experimentally measured results with calculations of the expected response using Eq. 3 by plotting them on the same polar diagram. 5. How has the directionality of the antenna improved in comparison to the dipole without a reflector? ...

Wave guides and resonant cavities

... fields to cancel fields inside the conductor. Just outside the electric field has only a normal component and the magnetic field only a tangential component. The former is proportional to the surface charge density and the latter to the surface current density. Concerning real metallic wave guides, ...

... fields to cancel fields inside the conductor. Just outside the electric field has only a normal component and the magnetic field only a tangential component. The former is proportional to the surface charge density and the latter to the surface current density. Concerning real metallic wave guides, ...

Theoretically and Experimentally Investigation of Sparking of Metal

... A microwave oven is consist a conducting cavity resonator connected to a magnetron which emits non-ionization electromagnetic radiation, usually at a frequency of 2.45 GHz, or wavelength of 12.24 cm. The cooking cavity itself is a Faraday cage enclosure which prevents the microwaves from escaping in ...

... A microwave oven is consist a conducting cavity resonator connected to a magnetron which emits non-ionization electromagnetic radiation, usually at a frequency of 2.45 GHz, or wavelength of 12.24 cm. The cooking cavity itself is a Faraday cage enclosure which prevents the microwaves from escaping in ...

Document

... superconducting materials that are separated by an extremely thin insulator. A steady flow of current through the insulator can be induced by a steady magnetic field. The current flow is termed Josephson current, and the penetration ("tunneling") of the insulator by the Cooper pairs is known as the ...

... superconducting materials that are separated by an extremely thin insulator. A steady flow of current through the insulator can be induced by a steady magnetic field. The current flow is termed Josephson current, and the penetration ("tunneling") of the insulator by the Cooper pairs is known as the ...

USPAS Accelerator Physics 2013 Duke University

... § There is still non-zero power loss for finite resistivity § Surface resistance: resistance to current flow per unit area ...

... § There is still non-zero power loss for finite resistivity § Surface resistance: resistance to current flow per unit area ...

Conductors

... Also, if the surface is an equipotential (from 4), then, since gradient of V, it is perpendicular to surface ...

... Also, if the surface is an equipotential (from 4), then, since gradient of V, it is perpendicular to surface ...

Axion Induced Oscillating Electric Dipole Moments

... The result is intrinsically oscillatory (the nonlocal makes the source for the vector potential transverse, ie, not Coulombic) . The above Feynman amplitudes can be written as : ...

... The result is intrinsically oscillatory (the nonlocal makes the source for the vector potential transverse, ie, not Coulombic) . The above Feynman amplitudes can be written as : ...

Effects of the Thickness of Niobium Surface Oxide Layers on Field

... used in Ref.1 and in cavity fabrication at Jefferson Lab. They were cut from the same Nb sheet and machined into a special shape that is suitable for scanning via the SFEM. Eight specially shaped Nb samples were employed in this study. One sample was kept as the control. The others were subjected to ...

... used in Ref.1 and in cavity fabrication at Jefferson Lab. They were cut from the same Nb sheet and machined into a special shape that is suitable for scanning via the SFEM. Eight specially shaped Nb samples were employed in this study. One sample was kept as the control. The others were subjected to ...

Theory of Electromagnetic Fields

... In practice, the walls of the cavity will not be perfectly conducting, and the boundary conditions will vary slightly from those we have assumed. The electric and (oscillating) magnetic fields on the walls will induce currents, which will dissipate the energy. However, if a field is generated in the ...

... In practice, the walls of the cavity will not be perfectly conducting, and the boundary conditions will vary slightly from those we have assumed. The electric and (oscillating) magnetic fields on the walls will induce currents, which will dissipate the energy. However, if a field is generated in the ...

RFQ development

... 2) Particle dynamic design (field level, Kilpatrick) => Length of RFQ 3) Electro dynamic design of resonator and Endplates => Choice of RFQ type 4) Electro dynamic design of tuners, couplers 5) Design of models, production and tests of models 6) Mechanical design of RFQ, Endplates, Positioners 7) Me ...

... 2) Particle dynamic design (field level, Kilpatrick) => Length of RFQ 3) Electro dynamic design of resonator and Endplates => Choice of RFQ type 4) Electro dynamic design of tuners, couplers 5) Design of models, production and tests of models 6) Mechanical design of RFQ, Endplates, Positioners 7) Me ...

ANALYSIS OF HUMAN BREAST MILK AT

... measurement and method of application to patients could be solved [1]. Concurrently, the search for any speciﬁc action of intense microwave ﬁelds on microorganisms, virus and other biological molecules has been commenced [2]. From the point of view of microwave propagation, most materials of biologi ...

... measurement and method of application to patients could be solved [1]. Concurrently, the search for any speciﬁc action of intense microwave ﬁelds on microorganisms, virus and other biological molecules has been commenced [2]. From the point of view of microwave propagation, most materials of biologi ...

High temperature superconductors are the materials with T c value

... High temperature superconductors are the materials with Tc value well above 100+ 20K, greater than the boiling point of nitrogen (77K), but much lower than room temp. In 1986, a new high temperature superconductor with a Tc value of 35K was discovered. This compound is a mixed oxide in the Ba – La – ...

... High temperature superconductors are the materials with Tc value well above 100+ 20K, greater than the boiling point of nitrogen (77K), but much lower than room temp. In 1986, a new high temperature superconductor with a Tc value of 35K was discovered. This compound is a mixed oxide in the Ba – La – ...

Superconducting radio frequency (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra-low electrical resistivity of a superconducting material allows an RF resonator to obtain an extremely high quality factor, Q. For example, it is commonplace for a 1.3 GHz niobium SRF resonant cavity at 1.8 Kelvin to obtain a quality factor of Q=5×1010. Such a very high Q resonator stores energy with very low loss and narrow bandwidth. These properties can be exploited for a variety of applications, including the construction of high-performance particle accelerator structures.