55 research outputs found

    Laser Wire Scanner Compton Scattering Techniques for the Measurement of the Transverse Beam Size of Particle Beams at Future Linear Colliders

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    This archive summarizes a working paper and conference proceedings related to laser wire scanner development for the Future Linear Collider (FLC) in the years 2001 to 2006. In particular the design, setup and data taking for the laser wire experiments at PETRA II and CT2 are described. The material is focused on the activities undertaken by Royal Holloway University of London (RHUL).Comment: 61 page

    Talk about the perfection of the System of Time Limit for Quotations in Civil Actions in China

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    “公正与效率”是新时代司法制度改革的主题。为实现公正与效率,1999年最高人民法院公布了《人民法院五年改革纲要》,进一步要求在民事诉讼中加强当事人的举证责任。2001年12月21日最高人民法院公布《关于民事诉讼证据的若干规定》,由此确立了我国举证时限制度,标志着我国“证据随时提出主义”向“证据适时提出主义”的转变。该规定强化了当事人的举证,对于实现民事审判公正与效率,完善我国民事诉讼制度具有重要而深远的意义。本文除引言和结语外,分为三章。本文第一章从举证时限制度的含义出发,分析制度的构成及价值,指出保障民事诉讼当事人诉讼权利平等与公正及提高诉讼效率是举证时限制度所要实现的目标和价值取向。同时,...“Equity and efficiency” are the themes of the judicial system restructuring in the new epoch. In order to realize the equity and efficiency, the Supreme Court issued 《the program for the court reformation in five years》 in 1999. It claimed to strengthen the onus probandi for the parties in the civil actions ulteriorly. The Supreme Court issued 《Some Provisions on the Evidences in Civil Action》on D...学位:法律硕士院系专业:法学院法律系_法律硕士(JM)学号:X20010807

    Tracking studies of the Compact Linear Collider collimation system

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    A collimation system performance study includes several types of computations performed by different codes. Optics calculations are performed with codes such as MADX, tracking studies including additional effects such as wakefields, halo and tail generation, and dynamical machine alignment are done with codes such as PLACET, and energy deposition can be studied with BDSIM. More detailed studies of hadron production in the beam halo interaction with collimators are better performed with GEANT4 and FLUKA. A procedure has been developed that allows one to perform a single tracking study using several codes simultaneously. In this paper we study the performance of the Compact Linear Collider collimation system using such a procedure

    Performance of a Nanometer Resolution Bpm System

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    International Linear Collider (ILC) interaction region beam sizes and component position stability requirements will be as small as a few nanometers. It is important to the ILC design effort to demonstrate that these tolerances can be achieved--ideally using beam-based stability measurements. It has been estimated that RF cavity beam position monitors (BPMs) could provide position measurement resolutions of less than one nanometer and could form the basis of the desired beam-based stability measurement. We have developed a high resolution RF cavity BPM system. A triplet of these BPMs has been installed in the extraction line of the KEK Accelerator Test Facility (ATF) for testing with its ultra-low emittance beam. The three BPMs are rigidly mounted inside an alignment frame on variable-length struts which allow movement in position and angle. We have developed novel methods for extracting the position and tilt information from the BPM signals including a calibration algorithm which is immune to beam jitter. To date, we have been able to demonstrate a resolution of approximately 20 nm over a dynamic range of +/- 20 microns. We report on the progress of these ongoing tests
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