Effects of small misalignments in empty unstable resonators

Perkins, J. F.; Cason, Charles

doi:10.1063/1.89622

Cited by 18 publications

(3 citation statements)

References 12 publications

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“…The neutrino and electron data together enable one to compare the isospin and charge couplings of the partons. I t was with the first neutrino data supplementing the earlier electron data that the first strong support for the identification of partons with quarks was obtained (for the most recent data, see Perkins (1977), Holder et al (1977), Berge et a1 (1977), Bosetti et a1 (1977)…”

Section: Neutrino Interactionsmentioning

confidence: 83%

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The quark parton model

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1979

Rep. Prog. Phys.

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In 1964, Gell-Mann and Zweig, against all experimental result, suggested that the fundamental triplet does exist and it contains three so called quarks. The quarks are the building blocks of the baryons and mesons and they cant be found in isolation. The quarks come with three different flavours: up(u), down(d) and strange(s) and their antiparticles. This set of three quarks corresponds to the fundamental SU(3) representation. The quantum numbers of quarks with their antiparticles are given in Table 1. The quarks carry electric charges ± 2 3 and ± 1 3 of the electron charge, which has never been observed before.

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Section: Neutrino Interactionsmentioning

confidence: 83%

“…T h e data are consistent with these predictions, at least for ~2 0 . 4 (Perkins 1975(Perkins , 1977, Holder et aZl977, Berge et all977, Bosetti et aZl977). At small x there appears to be some need for antiquarks which is probably the reason that o P / a v is slightly larger than 9.…”

Section: J+(x) J H ( ~)mentioning

confidence: 99%

The quark parton model

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1979

Rep. Prog. Phys.

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“…Presented as Paper 87-1277 at the AIAA 19th Fluid Dynamics, Plasma Dynamics and Lasers Conference, Honolulu, HI, June 8-10, 1987; received June 22, 1987; revision received Feb. 5,1988. This paper is declared a work of the U.S. Government and is not subject to copyright protection in the United States.…”

Section: Introductionmentioning

confidence: 99%

Transverse mode properties of beam-rotated unstable resonators for free electron lasers

Jones

Perkins²

1988

AIAA Journal

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A novel class of ring unstable resonators (UR90) with 90-deg rotation of the beam on each round-trip has been proposed as a method of avoiding disadvantages of obscuration in the output beam. We herein consider extension of this idea to include an internally focused beam, so that the portion of the beam near the focus can fit within the narrow gain region of a free electron laser. Modeling of transverse mode properties of empty cavities with or without an internal focus proceeds in the same general way. We have calculated the transverse mode intensity and phase distributions and the power retention fraction PR as a function of equivalent Fresnel number F eq over various ranges of F^. There is quasi-oscillatory behavior similar to that found in conventional unstable resonators, with poor mode loss separation occurring near an interger TV plus 7/8; hence, designs should avoid such values of F pn .

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Unstable Resonators

2005

Springer Series in Optical Sciences

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Effects of small misalignments in empty unstable resonators

Cited by 18 publications

References 12 publications

The quark parton model

The quark parton model

Transverse mode properties of beam-rotated unstable resonators for free electron lasers

Unstable Resonators

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