Interdigital longitudinal magnetic mode drift tube linear accelerator of separation focusing type

A linear accelerator and drift tube technology, which is applied in the direction of linear accelerators, accelerators, electrical components, etc., can solve the problems of low installation accuracy, large deviation between the center of the drift tube and the design value, and jamming, etc., to improve acceleration efficiency, The structure of the cavity is simple, and the effect of accelerating the gradient is improved
CN109640508AInactive Publication Date: 2019-04-16TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2019-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an interdigital longitudinal magnetic mode drift tube linear accelerator of a separation focusing type, and belongs to the technical field of linear accelerators. The characteristic of small size of a permanent magnet quadrupole iron is utilized, and a focusing magnet is placed in a single drift tube, so that the shunt impedance and the average acceleration gradient of the acceleration tube can be effectively improved. According to the first drift tube linear accelerator, a plurality of drift tubes are arranged in a transverse focusing section C at intervals, and a permanent-magnet quadrupole magnet is arranged in each drift tube in the axial direction. A drift tube linear accelerator of the other type provided by the invention is an improvement on a first drift tubelinear accelerator, and the synchronous phase of a drift tube gap in a transverse focusing section C is controlled, so that a 0-degree accelerating section B is formed after the transverse focusing section C, thereby saving the length of a longitudinal bunching section A and further improving the accelerating efficiency.
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Description

technical field

[0001] The invention belongs to the technical field of linear accelerators, and in particular relates to a linear accelerator of a split-focus interdigitated longitudinal magnetic mode drift tube. Background technique

[0002] The structure of the drift tube linear accelerator is a vacuum radio frequency resonant cavity with at least two drift tubes (the main body of the drift tube is a hollow cylindrical conductor) installed on the central axis, above and below the vacuum radio frequency resonant cavity (or A pair of ridge structures are arranged symmetrically on the left and right sides, and each drift tube is fixed to the ridge structure of the cavity by a support rod. Its working principle is: feed high-power RF (Radio Frequency, radio frequency) electromagnetic waves with a set frequency into the resonant cavity, and these electromagnetic waves will generate an electric field between the drift tubes, and the hollow cylindrical area inside the drift tube ...

Claims

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