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Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology最新文献

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Modification of MEA modulator-klystron units enabling short pulse injection into a pulse-stretcher ring 修改MEA调制器速调管单元，使短脉冲注入脉冲拉伸环
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73123
F. Kroes, E. Heine
{"title":"Modification of MEA modulator-klystron units enabling short pulse injection into a pulse-stretcher ring","authors":"F. Kroes, E. Heine","doi":"10.1109/PAC.1989.73123","DOIUrl":"https://doi.org/10.1109/PAC.1989.73123","url":null,"abstract":"In order to modify the present 500-MeV, 1% duty factor Medium Energy Accelerator (MEA) into a 900 MeV, 0.1% duty factor injector for a planned pulse-stretching ring, the present modulator-klystron units have to be adapted from the 4-MW, 2% duty factor mode of operation into the 10-Mw, 0.2% duty factor mode. The design principles of the modulators are discussed. Special attention is given to the video-pulse shape requirements, dictated by the future performance of the pulse stretcher. This device is required to deliver low-emittance, high-duty-factor ( approximately 90%) beams for nuclear physics experiments. Some prototype tests of the video-pulse forming modifications are presented.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125589186","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
An improved 1.26 MHz system for the Fermilab Antiproton Accumulator 费米实验室反质子蓄能器1.26 MHz系统的改进
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73021
D. Peterson, V. Bharadwaj, J. Klen, R. Pasquinelli, R. Webber
{"title":"An improved 1.26 MHz system for the Fermilab Antiproton Accumulator","authors":"D. Peterson, V. Bharadwaj, J. Klen, R. Pasquinelli, R. Webber","doi":"10.1109/PAC.1989.73021","DOIUrl":"https://doi.org/10.1109/PAC.1989.73021","url":null,"abstract":"A new 1.26-MHz RF system has been installed in the Fermilab Antiproton Accumulator. The high power and wide dynamic range of the system allow it to be used for a variety of beam acceleration and capture tasks. A description of the mechanical, cooling, and electrical considerations for the high-power ferrite loaded cavity and the design of the low level electronics are presented. Operational experience including the double bunch unstacking performance is discussed.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123012179","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
PIC simulations of an achromatic solenoidal focusing system for LMF LMF消色差电磁聚焦系统的PIC仿真
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73338
T. Mehlhorn, J. Quintenz
{"title":"PIC simulations of an achromatic solenoidal focusing system for LMF","authors":"T. Mehlhorn, J. Quintenz","doi":"10.1109/PAC.1989.73338","DOIUrl":"https://doi.org/10.1109/PAC.1989.73338","url":null,"abstract":"The nominal 1000-MJ yield of a Laboratory Microfusion Facility (LMF) pellet requires at least a 1.5-m-radius target chamber to contain the blast. A geometry has been identified that uses an annular ion beam with a center plug, has a total transport length of 4 m, and allows no direct line of sight from the target blast to the ion diode. An analytic model for an achromatic, two-lens system that is capable of transporting a 30-MV, 1-MA Li ion beam over this distance has been developed. The system uses both self-B/sub theta / and solenoidal magnetic lenses. The beam microdivergence requirement is minimized by locating the final solenoidal lens at the target chamber wall. In the present work, the analytic model was verified by PIC (particle-in-cell) transport calculations. A realistic coil system has been designed to supply the required 2-T solenoidal fields. Simulations show that a lithium beam can be transported over the 4-m distance with better than 70% energy and power efficiency, delivering roughly 1 MJ/beam to the target if a 6-mrad microdivergence is achieved at the diode.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126322877","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 Amsterdam Pulse Stretcher Project (AMPS) 阿姆斯特丹脉冲拉伸器项目(AMPS)
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73044
G. Luijckx, J. Bijleveld, H. B. Rookhuizen, P. Bruinsma, A. P. Kaan, F. Kroes, L. Kuijer, R. Maas, J. Noomen, J. C. Post, J. Spelt, C. de Vries
{"title":"The Amsterdam Pulse Stretcher Project (AMPS)","authors":"G. Luijckx, J. Bijleveld, H. B. Rookhuizen, P. Bruinsma, A. P. Kaan, F. Kroes, L. Kuijer, R. Maas, J. Noomen, J. C. Post, J. Spelt, C. de Vries","doi":"10.1109/PAC.1989.73044","DOIUrl":"https://doi.org/10.1109/PAC.1989.73044","url":null,"abstract":"To obtain electron beams with a high duty factor, a stretcher and storage ring will be added to the existing Medium Energy Accelerator (MEA) facility. The ring will operate at energies between 250 and 900 MeV and with circulating currents up to 200 mA. The storage mode will be used for internal target physics. Discussed in detail are the basic ring design; the ring hardware; linac modifications; and time schedule, manpower, and budget.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122342350","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: 18
Development of the 1 GeV proton linac for the Japanese Hadron Facility 日本强子设施1gev质子直线加速器的研制
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73310
Y. Yamazaki, S. Anami, S. Arai, H. Baba, T. Kageyama, T. Kato, M. Kihara, T. Kubo, Y. Mori, Y. Morozumi, F. Naito, M. Ono, E. Takasaki, N. Tokuda, A. Ueno
{"title":"Development of the 1 GeV proton linac for the Japanese Hadron Facility","authors":"Y. Yamazaki, S. Anami, S. Arai, H. Baba, T. Kageyama, T. Kato, M. Kihara, T. Kubo, Y. Mori, Y. Morozumi, F. Naito, M. Ono, E. Takasaki, N. Tokuda, A. Ueno","doi":"10.1109/PAC.1989.73310","DOIUrl":"https://doi.org/10.1109/PAC.1989.73310","url":null,"abstract":"The present status of the development of the 1-GeV proton linac for the Japanese Hadron Project is reported. The linac is composed of an H/sup -/ ion source, a 432-MHz RFQ (radio-frequency quadrupole) linac (3 MeV), a 432-MHz drift-tube linac (148 MeV), and a 1296-MHz high- beta linac (1 GeV). An electroforming method for sealing a 432-MHz drift tube was developed. Results of field measurement are presented for a cold model of a drift-tube linac. The high- beta linac is described in detail. A study of an annular-coupled structure indicates that this structure is promising for the project.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125722613","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
RF pulse compression experiment at SLAC SLAC射频脉冲压缩实验
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73036
Z. Farkas, G. Spalek, P. Wilson
{"title":"RF pulse compression experiment at SLAC","authors":"Z. Farkas, G. Spalek, P. Wilson","doi":"10.1109/PAC.1989.73036","DOIUrl":"https://doi.org/10.1109/PAC.1989.73036","url":null,"abstract":"Using RF pulse compression it is possible to boost a 50-100 MW output, expected from high-power microwave tubes operating in the 10-20 GHz frequency range, to the 300-600 MW level required by the next generation of high gradient linear colliders. Experiments have been performed at Stanford Linear Accelerator Center to test, at low power, a two-stage binary energy compressor (BEC) operating at 11.424 GHz. Using over-moded delay lines and 3 dB hybrid couplers, a 312-ns pulse was compressed to 78 ns, giving a power multiplication ratio of approximately 3.2 and a power efficiency of 81%. Individual component insertion losses were measured to be in the range of 0.6% to 8.5%. Overall efficiency calculated using these values agreed with measured values to approximately 1.4%.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121030928","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: 16
Preliminary results of a raster scanning beam delivery system 光栅扫描光束传输系统的初步结果
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73218
T. Renner, W. Chu, B. Ludewigt, J. Halliwell, M. Nyman, R.P. Singh, G. Stover, R. Stradtner
{"title":"Preliminary results of a raster scanning beam delivery system","authors":"T. Renner, W. Chu, B. Ludewigt, J. Halliwell, M. Nyman, R.P. Singh, G. Stover, R. Stradtner","doi":"10.1109/PAC.1989.73218","DOIUrl":"https://doi.org/10.1109/PAC.1989.73218","url":null,"abstract":"A beam delivery system using a raster scanning technique has been developed to create large radiation fields with light ion beams for radiation treatment of cancer patients. Radiation fields up to 20 cm by 30 cm have been produced with a beam of Ne ions having a magnetic rigidity of 6.9 T-m. The radiation fields produced by this method appear to be less sensitive to beam position and beam shape than the wobbler dynamic beam delivery system, but require more stringent beam spill requirements to insure uniform radiation fields.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121738368","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: 18
Recent operational experience with the Fermilab Tevatron 最近费米实验室Tevatron的操作经验
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.72977
J. Crawford, R. Mau
{"title":"Recent operational experience with the Fermilab Tevatron","authors":"J. Crawford, R. Mau","doi":"10.1109/PAC.1989.72977","DOIUrl":"https://doi.org/10.1109/PAC.1989.72977","url":null,"abstract":"The performance of the Fermilab accelerator complex, particularly the Tevatron, during the two years since the 1987 Particle Accelerator Conference is summarized. The accelerator has provided 800-GeV protons for one fixed-target run and 900-GeV protons and antiprotons for two collider runs during this period. Major accomplishments, as well as some of the operational problem areas, are highlighted.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123831432","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
Klystrode experimental results 速曲实验结果
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73375
M. Shrader, D. Preist
{"title":"Klystrode experimental results","authors":"M. Shrader, D. Preist","doi":"10.1109/PAC.1989.73375","DOIUrl":"https://doi.org/10.1109/PAC.1989.73375","url":null,"abstract":"A 500-kW peak power, 50-kW average, 425-MHz Klystrode has been designed and built. The high-power Klystrode design evolved from earlier work on a new line of UHF TV Klystrodes. Experimental testing has proceeded in three phases. The initial testing was done on a beam simulation device to determine the characteristics of the gridded gun. The second phase consisted of low-duty-cycle, full-voltage and current RF testing on the Klystrode built for the contract. The third phase will continue the testing at the full specification conditions. The basic operating principles are summarized, and test results are presented.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125093154","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: 3
Test of two 1.8 m SSC model magnets with iterated design 两个1.8 m SSC模型磁体迭代设计试验
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology Pub Date : 1989-03-20 DOI: 10.1109/PAC.1989.73091
P. Wanderer, J. Cottingham, P. Dahl, G. Ganetis, M. Garber, A. Ghosh, C. Goodzeit, A. Greene, J. Herrara, S. Kahn, E. Kelly, G. Morgan, J. Muratore, A. Prodell, E. Rohrer, W. Sampson, R. Shutt, P. Thompson, E. Willen
{"title":"Test of two 1.8 m SSC model magnets with iterated design","authors":"P. Wanderer, J. Cottingham, P. Dahl, G. Ganetis, M. Garber, A. Ghosh, C. Goodzeit, A. Greene, J. Herrara, S. Kahn, E. Kelly, G. Morgan, J. Muratore, A. Prodell, E. Rohrer, W. Sampson, R. Shutt, P. Thompson, E. Willen","doi":"10.1109/PAC.1989.73091","DOIUrl":"https://doi.org/10.1109/PAC.1989.73091","url":null,"abstract":"The authors report results from two 1.8 m long dipoles built as part of the Superconducting Super Collider (SSC) R&D program. These images contain design changes made on both the 1.8 m and the full-length 17 m dipoles to improve quench performance, magnetic field uniformity, and manufacturability. The magnets reach 8 T with little training. The magnet design and construction-including cable, coil, coil assembly and collaring, and yoke and shell-are described. Test results given include quench data, stress measurements, and field strength and multipoles.<<ETX>>","PeriodicalId":225182,"journal":{"name":"Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121520188","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
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