A Tunable Dielectric Wakefield Accelerating Structure

Kanareykin, A.; Gai, W.; Power, John; Sheinman, E.; Altmark, A.

doi:10.1063/1.1524911

Cited by 15 publications

(9 citation statements)

References 2 publications

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“…Diamond was proposed as a material for dielectricloaded accelerating (DLA) structures a few years ago [18,19]. It has a very low microwave loss tangent, the highest available coefficient of thermal conductivity, and high rf breakdown field [17]. In [38,39], the high charge beam from the argon wakefield accelerator (AWA) linac ($ 70 nC, z ¼ 1:5-2:5 mm) was transported through a rectangular diamond-loaded resonator and induced an intense wakefield behind the bunch.…”

Section: Comparison With Numerical Simulations and Experimental Rementioning

confidence: 99%

“…Dielectric based structures provide, in addition to the high accelerating gradient, the possibility of controlling the frequency spectrum of the structure by introducing nonlinear dielectrics (ferroelectrics) [15,16]. There is also the potential of using new manufactured materials (such as diamond and sapphire) with unique dielectric strength and thermoconductive properties [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Transverse operator method for wakefields in a rectangular dielectric loaded accelerating structure

Baturin

Sheinman

Altmark

et al. 2013

Phys. Rev. ST Accel. Beams

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Cherenkov radiation generated by a relativistic electron bunch in a rectangular dielectric-loaded waveguide is analyzed under the assumption that the dielectric layers are inhomogeneous normal to the beam path. We propose a method that uses eigenfunctions of the transverse operator applied to develop a rigorous full solution for the wakefields that are generated. The dispersion equation for the structure is derived and the wakefield analysis is carried out. The formalism developed here allows the direct solution of the inhomogeneous system of Maxwell equations, an alternative analytic approach to the analysis of wakefields in contrast to the previously used impedance method for rectangular structure analysis. The formalism described here was successfully applied to the analysis of rectangular dielectric-lined structures that have been recently beam tested at the Argonne (ANL/AWA) and Brookhaven (BNL/ATF) accelerator facilities.

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Section: Comparison With Numerical Simulations and Experimental Rementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transverse operator method for wakefields in a rectangular dielectric loaded accelerating structure

Baturin

Sheinman

Altmark

et al. 2013

Phys. Rev. ST Accel. Beams

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show abstract

“…From formula (12) we find the temperature difference between the center of an elliptical body and its surface Based on mathematical modeling, it is obtained that when the geometric shape of the cross-section changes (during the transition to an elliptical section), the level of thermal stresses arising decreases. The last relation (13) shows that the temperature difference between the center and the surface decreases with the transition to an elliptical cross section.…”

Section: Main Partmentioning

confidence: 99%

“…obtain a formula describing the temperature field, we use the system of elliptic coordinates α, β, 0≤α<∞, -π≤β≤π. If α=α0 is the equation of the body surface, then the Poisson equation in elliptic coordinates will take the form E3S Web of Conferences 376,01064 (2023) https://doi.org/10.1051/e3sconf/202337601064 ERSMEdesired temperature distribution is described by the equation[12] temperature distribution in an elliptical body obeys a parabolic law, as shown in figure2.…”

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confidence: 99%

Mathematical modeling of temperature stresses of heat-generating elements of elliptical cross-section

Kanareykin

2023

E3S Web of Conf.

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The work is devoted to improving the reliability of nuclear power plants. During operation, the fuel elements of nuclear reactors operate at sufficiently high temperatures. The heterogeneity of the temperature field leads to the appearance of so-called thermal stresses. The main objective of this work is mathematical modeling of temperature stresses of fuel elements of cylindrical and elliptical cross-sections reactors. Based on mathematical modeling, it was shown that the level of thermal stresses arising during the transition from a circular cross-section to an elliptical one decreases.

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“…further analysis, let's consider the behavior of one of the tensor components. The ratio of the considered thermal stresses is equal to[14] E3SWeb of Conferences 376, 01066 (2023) https://doi.org/10.1051/e3sconf/202337601066 ERSME-2023 where ell xx -thermal stresses in a cylindrical body, cir xx -thermal stresses in a cylindrical body.We will conduct a study of the behavior when the maximum value of tensors (x = 0) is reached…”

mentioning

confidence: 99%

Determination of the optimal size of the fuel element of the elliptical cross-section of a nuclear reactor

Kanareykin

2023

E3S Web of Conf.

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The work is devoted to the process of heat exchange of a nuclear reactor. Attention was paid to improving the reliability of the fuel rods of the nuclear reactor. At the same time, two cases of the cross section of the rod shell were considered: cylindrical and elliptical. Based on the application of the differentiation method, it was shown that the level of thermal stresses arising during the transition from a circular cross-section to an elliptical one decreases. Which confirms the choice of the section of the reduced elements in the form of an ellipse. The optimal size of the section itself was also obtained. The obtained result is useful because by varying the geometric shape of the cross-section, it is possible to reduce the level of thermal stresses that occur, and, consequently, to increase the reliability and durability of nuclear rocket engine designs.

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A Tunable Dielectric Wakefield Accelerating Structure

Cited by 15 publications

References 2 publications

Transverse operator method for wakefields in a rectangular dielectric loaded accelerating structure

Transverse operator method for wakefields in a rectangular dielectric loaded accelerating structure

Mathematical modeling of temperature stresses of heat-generating elements of elliptical cross-section

Determination of the optimal size of the fuel element of the elliptical cross-section of a nuclear reactor

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