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Proceedings of International Conference on Particle Accelerators最新文献

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Design of the ALS transverse coupled-bunch feedback system ALS横向耦合束反馈系统的设计
Proceedings of International Conference on Particle Accelerators Pub Date : 2011-01-12 DOI: 10.1109/PAC.1993.309237
W. Barry, J. Byrd, J. Corlett, J. Hinkson, J. Johnson, G. Lambertson, J. Fox
{"title":"Design of the ALS transverse coupled-bunch feedback system","authors":"W. Barry, J. Byrd, J. Corlett, J. Hinkson, J. Johnson, G. Lambertson, J. Fox","doi":"10.1109/PAC.1993.309237","DOIUrl":"https://doi.org/10.1109/PAC.1993.309237","url":null,"abstract":"Calculations of transverse coupled bunch growth rates in the Advanced Light Source (ALS), a 1.5 GeV electron storage ring for producing synchrotron radiation, indicate the need for damping via a transverse feedback (TFB) system. We present the design of such a system. The maximum bunch frequency is 500 MHz, requiring that the FB system have a broadband response of at least 250 MHz. We describe, in detail, the choice of broadband components such as kickers, pickups, power amplifiers, and electronics.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125544909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
High-power klystron modulator using a pulse-forming line and magnetic switch 大功率速调管调制器采用脉冲形成线和磁开关
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-06-21 DOI: 10.1109/PAC.1993.308612
M. Akemoto, S. Takeda
{"title":"High-power klystron modulator using a pulse-forming line and magnetic switch","authors":"M. Akemoto, S. Takeda","doi":"10.1109/PAC.1993.308612","DOIUrl":"https://doi.org/10.1109/PAC.1993.308612","url":null,"abstract":"A new type of klystron modulator has been developed for the Japan Linear Collider. It consists of a pulse-forming line (PFL), a pulse transformer and a magnetic switch. In order to realize a compact modulator, a triplate strip transmission line using deionized water as a dielectric was adapted for the PFL. A preliminary test has shown that an output pulse with a peak voltage of 600 kV, a pulse length (flat-top) of 460 ns and a rise time of 153 ns can be generated for a dummy load with an impedance of 500 /spl Omega/.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The CERN linear collider 欧洲核子研究中心线性对撞机
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-25 DOI: 10.1109/PAC.1993.308859
W. Scandale
{"title":"The CERN linear collider","authors":"W. Scandale","doi":"10.1109/PAC.1993.308859","DOIUrl":"https://doi.org/10.1109/PAC.1993.308859","url":null,"abstract":"The CERN study of an electron-positron linear collider is concerned with a two-beam system powered via a superconducting drive linac. The study pursues the development of suitable technologies for a 2 TeV (centre-of-mass) collider in the longer term but concentrates, now, on a 500 GeV first stage for which the two-beam system developed by us appears very suitable. Results are reported on the 30 GHz main linac, the drive beam and the final focus system.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122371303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of power supply ripple on emittance growth in the collider 电源纹波对对撞机发射度增长的影响
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308985
T. Sen, M. Syphers
{"title":"Effect of power supply ripple on emittance growth in the collider","authors":"T. Sen, M. Syphers","doi":"10.1109/PAC.1993.308985","DOIUrl":"https://doi.org/10.1109/PAC.1993.308985","url":null,"abstract":"Power supply ripple at frequencies of 720 Hz and its harmonics is expected to affect the motion of particles in the collider. These ripple frequencies are nearly resonant with the betatron frequencies. To estimate the tolerable ripple levels, we have tracked particles through the complete nonlinear lattice for 10/sup 4/ turns with ripple fed from 10 different power stations and including up to 7 different ripple frequencies. We presently estimate that relative ripple amplitudes must be below the 10/sup -8/ level for there to be no significant impact on the emittance over the short term.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115125060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
High power CW Klystrode amplifier for 267 MHz 267兆赫的大功率连续波速变管放大器
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308670
M. Shrader, D. Preist, R.N. Tornoe
{"title":"High power CW Klystrode amplifier for 267 MHz","authors":"M. Shrader, D. Preist, R.N. Tornoe","doi":"10.1109/PAC.1993.308670","DOIUrl":"https://doi.org/10.1109/PAC.1993.308670","url":null,"abstract":"A 250 KW CW 267 MHz Klystrode has been designed and built as part of a major program in conjunction with the Chalk River National Labs (CRNL), Chalk River, Ontario, Canada. The high CW power design has evolved from previous work for UHF television and the SDI program. A major step was taken on this program to simplify and reduce the complexity of the RF input circuit. CW power in excess of 250 KW and efficiencies in excess of 70% were readily obtained with power gain in excess of 21 dB. Three tubes and associated circuitry were tested and delivered as part of the effort.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115397352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A moment method Laplace solver for low energy beam transport codes 低能束输运码的矩量法拉普拉斯求解
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309746
C. K. Allen, S. Guharay, Matthias Reiser
{"title":"A moment method Laplace solver for low energy beam transport codes","authors":"C. K. Allen, S. Guharay, Matthias Reiser","doi":"10.1109/PAC.1993.309746","DOIUrl":"https://doi.org/10.1109/PAC.1993.309746","url":null,"abstract":"A moment method technique for solving Laplace's equation is presented. The technique is then extended to Poisson's equation to include space charge. The procedure is implemented on a PC and applied to the cases of an electrostatic quadrupole lens and an ellipsoidal bunch in a grounded pipe.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"555 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123104950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
On the high intensity aspects of AGS Booster proton operation 关于AGS助推器质子操作的高强度方面
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309781
R. K. Reece, L. Ahrens, E. Bleser, J. Brennan, C. Gardner, J. Glenn, T. Roser, Y. Shoji, W. vanAsselt, W. T. Weng
{"title":"On the high intensity aspects of AGS Booster proton operation","authors":"R. K. Reece, L. Ahrens, E. Bleser, J. Brennan, C. Gardner, J. Glenn, T. Roser, Y. Shoji, W. vanAsselt, W. T. Weng","doi":"10.1109/PAC.1993.309781","DOIUrl":"https://doi.org/10.1109/PAC.1993.309781","url":null,"abstract":"Observations of high intensity effects on the proton performance of the AGS Booster are presented, including present operational limits and correction methods. The transverse emittances, optimum tune working points, damping of coherent transverse oscillations and correction of stopband resonances through third-order are discussed in addition to the observed tune spread due to space charge forces. The initial longitudinal phase space distribution, capture and acceleration parameters and measurements are also given. Operational tools and strategies relevant to the high intensity setup are mentioned.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114662654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Correlation method of measurements of ion beam parameters 离子束参数测量的相关方法
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309257
A. Artiomov
{"title":"Correlation method of measurements of ion beam parameters","authors":"A. Artiomov","doi":"10.1109/PAC.1993.309257","DOIUrl":"https://doi.org/10.1109/PAC.1993.309257","url":null,"abstract":"A correlation method of nonperturbative control on the ion energy spectrum, beam profile and transverse emittance in a bending transport line area, is suggested. The method is based on measurements of the cross-correlation function between a flux of photons or particles from a probing target pseudorandomly modulated in time, and that of fast information-carrier convoy particles produced in the target and recorded at a drift distance. Characteristics of the apparatus used to realize the proposed diagnostic method by means of time-integrated correlometers based on charge-coupled devices, are considered for a source of H/sup -/ ions.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115752525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RF-synchronized imaging for particle and photon beam characterizations 用于粒子和光子束表征的射频同步成像
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309230
A. Lumpkin
{"title":"RF-synchronized imaging for particle and photon beam characterizations","authors":"A. Lumpkin","doi":"10.1109/PAC.1993.309230","DOIUrl":"https://doi.org/10.1109/PAC.1993.309230","url":null,"abstract":"The usefulness of imaging electro-optics for rf-driven accelerators can be enhanced by synchronizing the instruments to the system fundamental frequency or an appropriate subharmonic. This step allows one to obtain micropulse bunch length and phase during a series of linac bunches or storage ring passes. Several examples now exist of the use of synchroscan and dual-sweep streak cameras and/or image dissector tubes to assess micropulse scale phenomena (10 to 30 ps) during linac and storage ring operations in the U.S., Japan, and Europe. As space permits, selections will be presented from the list of phase stability phenomena on photoelectric injectors, micropulse bunch length during a macropulse, micropulse elongation effects, transverse Wakefield effects within a micropulse, and submicropulse phenomena on a stored beam. Potential applications to the subsystems of the Advanced Photon Source (APS) will be briefly addressed.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"33 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116666430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The linkage of Zlib to TEAPOT for auto-differentiation map extraction and nonlinear analysis Zlib与TEAPOT的联动，用于自动微分图提取和非线性分析
Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308865
N. Sun, Y.T. Yan, F. Pilat, G. Bourianoff
{"title":"The linkage of Zlib to TEAPOT for auto-differentiation map extraction and nonlinear analysis","authors":"N. Sun, Y.T. Yan, F. Pilat, G. Bourianoff","doi":"10.1109/PAC.1993.308865","DOIUrl":"https://doi.org/10.1109/PAC.1993.308865","url":null,"abstract":"The differential Lie algebraic numerical library, Zlib, has been linked to the TEAPOT, the accelerator simulator code. This makes possible the use of the operational correction features of TEAPOT to produce a corrected lattice, and then choose either map or thin element-by-element tracking for tracking studies. Because thin-element tracking is more accurate but slower than map tracking, the option of choosing one or the other is very desirable.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116798216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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