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linac n.【物理學】 linear accelerator.

linage

Secondly , the beam orbit offset effects caused by the initial beam offset and the linac components “ offsets have been quantitatively studied first . as an example with the injector linac for beijing electron positron collider upgrading project ( bepcii ) , the beam orbit offset caused by the above error effects have been simulated and analyzed 其次定量研究束流的初始徑向誤差和加速器部件的安裝誤差等對束流軌道偏軸的影響,并以北京正負電子對撞機二期工程( bepc )的直線加速器為例,給出了上述各種誤差導致軌道偏軸的模擬計算結果及其分析。

Numeric simulation is done based on 30mev linac structure and the corresponding parts “ parameters . the simulate result shows that the design of beam line is reasonable . the beam properties change very small when the drifting distance before the first acceleration stage is changed in the certain ranges 根據30mevlinac結構和元件參數進行了整體的數值模擬,模擬結果表明: 30mevlinac中各個加速段的結構與性能較好,輸出束流的發射度和能散度都較小,束線的設計也較合理。

Simulation on the a - magnet of 30mev linac is also done with the gpt code ; the movement picture of electron beam in a - magnet is presented ; the change of beams emittance , the compression effect of bunch length , change of energy dissipation and achromatic angle of true a - magnet are explored . this chapter mainly introduces some characteristics and properties of the main accelerate stage in 30mev linac system 利用gpt程序對30mevlinac中的-磁鐵進行了動力學模擬,給出了電子束在-磁鐵中的運動圖像,研究了注入器輸出束流經過-磁鐵后束流發射度的變化、束團長度的壓縮效應、能散度的變化以及-磁鐵實際的消色散入射角。

Then , the beam orbit correction in bepcii lianc is simulated by optimum liar program and a design study on the optimum orbit correction system for bepcii linac is discussed . the optimum corrector ' s distribution and the required tolerances of misalignment of the linac components are given 最后用改進了的liar程序對bepc直線加速器軌道進行模擬計算,討論了該校正系統的設計研究,并給出了軌道校正系統的優化布局和對加速器部件的安裝公差的要求。

The 30mev linac can be used as energy recovery accelerator with photo - cathode rf - gun injector . and multi - cavities photo - cathode injector can not only improve the quality of output electron beam , but also decrease the effect of phase question in the energy recovery process 當注入器束流電子能量接近10mev后,第一加速段與束線中產生的減速相位與加速相位的差是小的,對能量回收效率的影響可以忽略。

Obtaining a high quality beam bears on many factors at the exit of a high energy electron linear accelerator ( linac ) , beam orbit effect is one of the most important factors 電子直線加速器末端良好束流品質的獲得和很多因素有關,束流軌道的影響是其中重要因素之一。

The afc system of linac , based on the embeded - system , is studied in the paper . the frequency of the magnetron changes with the temperature of environment outside when linac works 本論文重點研究的是嵌入式系統在電子直線加速器磁控管頻率自動跟蹤控制中的應用。

Alpha - magnet , the beam energy choosing and pulse width compressing element , is a key part of the injector . it plays an important role in 30mev linac system -磁鐵的功能是束流電子能量選擇和脈沖寬度壓縮,在30mevlinac系統中起著非常重要的作用。

That will badly affect the dosage of linac . the method of maximum control process based on digital controller improves the accuracy of frequency stabilization 頻差的大小直接影響整機的主要物理指標-射線能量,劑量率以及劑量率的穩定性。

In order to obtain a high quality beam at the exit of a linac , seriously controlling on the beam orbit in the linac is greatly important 因此,為使在高能直線加速器出口獲得盡可能好的束流品質,嚴格控制束流在加速器中的軌道是至關重要的。

The beam orbit offset effects caused by the initial beam offset and linac componets “ offsets in beam transferring process 良好的束流軌道可以獲得低發射度、低能散的高品質束流。

We introduce principles and characteristics of different bunch length monitors for electron linac in this paper 摘要對電子直線加速器束團長度監測器進行了綜述。

Structure and measure methods of some performances of ess - 010 - 03 electron linac accelerator 03電子直線加速器的結構及其幾種性能指標測試方法

Design study on an electron linac for irradiation processing with a high capture efficiency 高俘獲效率電子輻照加速器的設計研究

Crrfa - 30 l band linac 波段射頻加速器

Studies on the optimum beam orbit correction for high energy electron linacs 高能電子直線加速器束流軌道校正的優化研究

Radio frequency linac accelerator 高頻線性加速器

Signal processing system for beam position monitor at hls 200 mev linac 直線加速器束流位置測量的信號處理系統

A method of beam control for nfz - 10 industrial irradiation linac 10工業輻照電子直線加速器束流控制方法