Beam feedback electronics for the spear storage ring
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چکیده
منابع مشابه
Beam Feedback Electronics for the Spear Storage Ring
The two beams of the 2 GeV Stanford electron-positron storage ring can exhibit, under certain modes of operation, coherent oscillations which have a rate of growth proportional to the beam current. Since this rate is much slower than the machine revolution tiequency, it is possible to produce damping by means of negative feedback, the beam itself being part of the feedback loop. Three systems h...
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The Stanford 2 GeV electron-positron storage ring is equipped with 20 beam position monitors. The principle of beam coupling is analysed and a calculation is made for the sensitivity to beam current and position, as well as for the intrinsic distortion of this type of monitor. Beam orbit coordinates are reconstructed by scanning the monitor's four electrode signals and the 20 stations around th...
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Radiative beam polarization has been measured in the SPEAR storage ring to determine experimentally the strengths of depolarization phenomena. With single beams, the expected linear depolarization resonances and additional nonlinear and satellite resonances were observed. Data are also presented on polarization with colliding beams.
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SPEAR (Stanford Positron-Electron Asymmetric Ring) consists of a single ring of magnets threaded by an aluminum vacuum chamber in which counterrotating beams of electrons and positrons will circulate. A high luminosity is achieved by making the beams collide in one of two long 71low-beta71 interaction regions. 132 The ring is composed of the two matched low-beta regions connected by nearly circ...
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The orbit feedback system plays crucial roles for the operation of the 3 generation light source. There are various issues in the orbit feedback system that should be addressed to achieve ultimate performance. The orbit feedback system in SRRC was upgraded recently to satisfy the requirement of demanding users. Based upon operational experiences of the last few years, the new system was designe...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods
سال: 1973
ISSN: 0029-554X
DOI: 10.1016/0029-554x(73)90614-9