Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)最新文献_第2页

HTS power lead test results 高温高压电源引线测试结果

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-11-02 DOI: 10.1109/PAC.1999.795568

G. Citver, S. Feher, P. Limon, D. Orris, T. Peterson, C. Sylvester, M. Tartaglia, J. Tompkins

引用次数: 10

First results of the Fermilab high-brightness RF photoinjector 费米实验室高亮度射频光注入器的初步结果

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-10-25 DOI: 10.1109/PAC.1999.794361

J. Carneiro, R. Carrigan, M. Champion, P. Colestock, H. Edwards, J. Fuerst, W. Hartung, K. Koepke, M. Kuchnir, J. Santucci, L. Spentzouris, M. J. Fitch, A. Melissinos, P. Michelato, C. Pagani, D. Sertore, N. Barov, J. Rosenzweig

{"title":"First results of the Fermilab high-brightness RF photoinjector","authors":"J. Carneiro, R. Carrigan, M. Champion, P. Colestock, H. Edwards, J. Fuerst, W. Hartung, K. Koepke, M. Kuchnir, J. Santucci, L. Spentzouris, M. J. Fitch, A. Melissinos, P. Michelato, C. Pagani, D. Sertore, N. Barov, J. Rosenzweig","doi":"10.1109/PAC.1999.794361","DOIUrl":"https://doi.org/10.1109/PAC.1999.794361","url":null,"abstract":"A collaboration has been formed between FNAL, UCLA, LNFN Milano, the University of Rochester, and DESY to develop the technology of an RF photoinjector, followed by a superconducting cavity, to produce high bunch charge (8 nC) with low normalized emittance (<20 mm mrad) in bunch spacing trains of 800 bunches separated by /spl mu/s. The activities of bunch charge the collaboration fall into two categories: 1. the development of Injector II for the TeSLA/TTF accelerator. This photoinjector (TTF RF Gun) was tested at Fermilab in September and October 1998 and installed at DESY in November 1998. 2. the installation at the A0 Hall of Fermilab of a modified version of the TTF photoinjector, for photoinjector R&D and to study novel applications of high-brightness, pulsed electron beams. This photoinjector (A0 RF Gun) produced its first beam in March 1999. This paper presents a summary of the tests done at Fermilab on the TITF Injector II and the first results obtained on the new Fermilab photoinjector.","PeriodicalId":20453,"journal":{"name":"Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1999-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87045702","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: 33

Precision fast kickers for kiloampere electron beams 用于千安培电子束的精密快速踢脚器

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-10-06 DOI: 10.1109/PAC.1999.795777

Y. Chen, G. Caporaso, J. Weir

引用次数: 23

Wakefield and beam centering measurements of a damped and detuned X-band accelerator structure 阻尼和失谐x波段加速器结构的韦克菲尔德和光束定心测量

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-09-14 DOI: 10.1109/PAC.1999.792342

C. Adolphsen, K. Bane, R. Jones, N. Kroll, D. McCormick, R. Miller, M. Ross, T. Slaton, J.W. Wang, T. Higo

引用次数: 18

Design and test of a beam transformer as a chopper 作为斩波器的波束变压器的设计与试验

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-09-02 DOI: 10.1109/PAC.1999.795761

W. Chou, Y. Mori, M. Muto, Y. Shirakabe, A. Takagi

引用次数: 4

Beam breakup calculations for the second axis of DARHT DARHT第二轴的光束破裂计算

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-08-20 DOI: 10.1109/PAC.1999.795498

W. Fawley, Y. Chen, T. Houck

{"title":"Beam breakup calculations for the second axis of DARHT","authors":"W. Fawley, Y. Chen, T. Houck","doi":"10.1109/PAC.1999.795498","DOIUrl":"https://doi.org/10.1109/PAC.1999.795498","url":null,"abstract":"The accelerator for the second axis of the Dual Axis Radiographic Hydrodynamic Test (DARHT) facility will produce a 4-kA, 20-MeV, 2-/spl mu/s output electron beam with a design goal of less than 1000 /spl pi/ mm-mrad normalized transverse emittance and less than 0.5-mm beam centroid motion. In order to meet this goal, the beam transport must have excellent optics and the beam breakup instability (BBU) must be limited in growth. Using a number of simulation codes such as AMOS and BREAKUP, we have modeled the transverse impedances of the DARHT-II accelerator cells and the electron beam response to different transverse excitations such as injector RF noise, magnetic dipole fields arising from the 90-degree bend between the cathode stalk and insulator column, and downstream solenoid alignment errors. The very low Q (/spl sim/2) predicted for the most important TM dipole modes has prompted us to extend the BREAKUP code to be able to use the dipole wakefields calculated by AMOS in addition to the most usual discrete frequency BBU mode model. We present results for the predicted BBU growth and the empirical sensitivity to various machine parameters.","PeriodicalId":20453,"journal":{"name":"Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1999-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75934149","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

Effect of insertion devices in SPEAR-3 在spear3中插入装置的效果

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-08-19 DOI: 10.1109/PAC.1999.792690

J. Corbett, Y. Nosochkov

引用次数: 7

Accelerator physics challenges in future linear colliders 未来线性对撞机的加速器物理挑战

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-08-09 DOI: 10.1109/PAC.1999.795674

T. Raubenheimer

引用次数: 1

First results on energy recovery in the Jefferson Lab IRFEL 杰弗逊实验室的第一组能量回收实验结果

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-08-01 DOI: 10.1109/PAC.1999.792724

S. Benson, G. Biallas, C. Bohn, I. Campisi, D. Douglas, R. Evans, R. Hill, K. Jordan, G. Krafft, R. Li, L. Merminga, G. Neil, P. Piot, J. Preble, M. Shinn., T. Siggins, R. Walker, B. Yunn

{"title":"First results on energy recovery in the Jefferson Lab IRFEL","authors":"S. Benson, G. Biallas, C. Bohn, I. Campisi, D. Douglas, R. Evans, R. Hill, K. Jordan, G. Krafft, R. Li, L. Merminga, G. Neil, P. Piot, J. Preble, M. Shinn., T. Siggins, R. Walker, B. Yunn","doi":"10.1109/PAC.1999.792724","DOIUrl":"https://doi.org/10.1109/PAC.1999.792724","url":null,"abstract":"A recirculating, energy-recovering linac is used as driver accelerator for Jefferson Lab's high average power FEL. CW beam of 5 mA design current is transported from the superconducting RF (SRF) linac to the wiggler for lasing, and then recirculated back to the linac for deceleration and energy recovery. About 75% of the beam power is extracted before the beam is transported to the beam dump. Energy recovery reduces power consumption, RF equipment capital costs, and beam dump shielding requirements. It is arguably essential as FEL technology is scaled to higher average power levels. To date, 4 mA of CW beam has been energy recovered successfully. There is no evidence of RF instabilities due to the energy aperture of the transport system, momentum compaction or the phase of the decelerating beam. HOM power from the beam has interfered with the operation of the IR interlock detectors, designed to protect the warm waveguide window from thermal runaway. Installation of copper screens appears to have solved the problem. More detailed studies of the HOM spectra and their correlation to the beam properties are planned.","PeriodicalId":20453,"journal":{"name":"Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1999-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76208581","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: 4

Time dependent beam focusing at the DARHT-II injector diode 时间相关光束聚焦于dart - ii注入二极管

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-07-30 DOI: 10.1109/PAC.1999.794319

S. Eylon, E. Henestroza, W. Fawley, S. Yu

引用次数: 2