Proceedings of International Conference on Particle Accelerators最新文献_第4页

Lattice studies for KAON Factory Accumulator and Booster rings KAON工厂蓄能器和增压环的晶格研究

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309788

A. Iliev, A. Budzko, R. Servranckx

引用次数: 0

Using the Panofsky-Wenzel theorem in the analysis of radio-frequency deflectors 用Panofsky-Wenzel定理分析射频偏转器

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308768

M. J. Browman

{"title":"Using the Panofsky-Wenzel theorem in the analysis of radio-frequency deflectors","authors":"M. J. Browman","doi":"10.1109/PAC.1993.308768","DOIUrl":"https://doi.org/10.1109/PAC.1993.308768","url":null,"abstract":"In a 1956 paper Panofsky and Wenzel considered the transverse momentum imparted to a fast particle moving parallel to the-axis of a cavity excited in either a TE (no component of the electric field parallel to the axis) or TM mode (no component of the magnetic field parallel to the axis). One conclusion of this paper was that in a TE mode the deflecting impulse of the electric field exactly cancels the impulse of the magnetic field. This result is sometimes misinterpreted as concluding that if the electric field acting on a particle is purely transverse, the deflection impulses from the electric and magnetic fields must cancel one another. This conclusion is false. Instead p/spl perp/=(espl omegasub 0/)/spl intsup dsub 0/(-i)/spl nablaspl perp/E/sub z/dz, implicitly derived in the 1956 paper, is a more useful form of the theorem for deflecting cavities. In this equation, p/spl perp/ is the transverse momentum imparted to the particle, d is the length of the cavity, e is the charge of the particle, /spl omegasub 0/ is the angular frequency of the cavity, and /spl nablaspl perp/E/sub z/, is the transverse gradient of the z component of the electric field along the path of the particle. The -i represents a 90/spl deg/ phase advance of the integrand with respect to the electric field. In other words, the integrand has the same phase as the magnetic field. Eq. (1) is not restricted to TE or TM modes. In particular, it applies to two similar-looking modes in a high-energy deflector that was studied for the Accelerator Transmutation of Waste (ATW) project at Los Alamos National Laboratory.<<ETX>>","PeriodicalId":128308,"journal":{"name":"Proceedings of International Conference on Particle Accelerators","volume":"66 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":"122770047","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: 24

Computer simulation of the Maryland Transport Experiment 马里兰运输实验的计算机模拟

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309750

I. Haber, D. Callahan, A. Langdon, Matthias Reiser, D.X. Wang, J.G. Wang

引用次数: 2

Beam breakup in an annular beam 环形梁中的波束破裂

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309650

Y. Lau, J. Luginsland, R. Gilgenbach

引用次数: 0

Longitudinal dynamics for electrons in the thermal wave model for charged particle beams 带电粒子束热波模型中电子的纵向动力学

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308963

R. Fedele, G. Miele, L. Palumbo

引用次数: 0

Realistic modeling of radiation transmission inspection systems 辐射透射检测系统的现实建模

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309091

K. Sale

引用次数: 0

Localized chromaticity correction of low-beta insertions in storage rings 储存环中低β插入物的局部色度校正

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308991

Lawrence Berkeley Laboratory, M. Donald, R. Helm, J. Irwin, H. Moshammer, É. Forest, D. Robin, A. Zholents, M. Sullivan, H. Irwin, Moshammer

{"title":"Localized chromaticity correction of low-beta insertions in storage rings","authors":"Lawrence Berkeley Laboratory, M. Donald, R. Helm, J. Irwin, H. Moshammer, É. Forest, D. Robin, A. Zholents, M. Sullivan, H. Irwin, Moshammer","doi":"10.1109/PAC.1993.308991","DOIUrl":"https://doi.org/10.1109/PAC.1993.308991","url":null,"abstract":"The correction of the chromaticity of low-beta insertions in the storage rings is usually made with sextupole lenses in the ring's arcs. When decreasing the beta functions at the insertion point (IP), this technique becomes fairly ineffective, since it fails to properly correct the higher order chromatic aberrations. Here we consider the approach where the chromatic effects of the quadrupole lenses generating low beta functions at the IP are corrected locally with two families of sextupoles, one family for each plane. Each family has two pairs of sextupoles which are located symmetrically on both sides of the IP. The sextupole-like aberrations of individual sextupoles are eliminated by utilizing optics forming a -I transformation between sextupoles in the pair. The optics also includes bending magnets which preserve equal dispersion functions at the two sextupoles in each pair. At sextupoles in one family, the vertical beta function is made large and the horizontal is made small. The situation is reversed in the sextupoles of the other family. The betatron phase advances from the IP to the sextupoles are chosen to eliminate a second order chromatic aberration. The application of the localized chromatic correction is demonstrated using as an example the lattice design for the Low Energy Ring of the SLAC/LBL/LLNL PEP-II B Factory.<<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":"114475370","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: 13

Matrix nonlinear beam dynamics in curvilinear space-time 曲线时空中的矩阵非线性光束动力学

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308965

A. Dymnikov, R. Hellborg

引用次数: 0

Skew quadrupole effects in the IBM compact synchrotron IBM紧凑型同步加速器中的倾斜四极效应

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.308875

C. Archie

引用次数: 1

Monte Carlo based formula for radiation shielding assessment in the forward direction 基于蒙特卡罗的正向辐射屏蔽评估公式

Proceedings of International Conference on Particle Accelerators Pub Date : 1993-05-17 DOI: 10.1109/PAC.1993.309274

C. Wilkinson, D. Fitzgerald, S. Frankle, R. Hutson, R. Macek

引用次数: 5