منابع مشابه
KEKB Beam Instrumentation Systems
For the stable high-luminosity operation and luminosity-increase, the electron and positron storage rings of the KEK B-Factory (KEKB) is equipped with various beam instrumentations, which have being working well since the start of the commissioning in December, 1998. Details and performance of the beam-position monitor system based on the spectrum analysis using DSPs, the turn by turn BPM with ...
متن کاملBeam Switching and Beam Feedback Systems at Kekb Linac
The KEK 8-GeV electron / 3.5-GeV positron linac has been operated with very different beam specifications for downstream rings, KEKB, PF and PF-AR. For the reliable operation among these beam modes, intelligent beam switching and beam feedback systems have been developed and used since its commissioning. A software panel is used to choose one of four beam modes and a switching sequence is execu...
متن کاملBeam-beam Effect Observed in the Kekb
This report summarizes observed phenomena related to the beam-beam effects in the KEKB collider. A general performance of the beam-beam effect is described. An emphasis is put on the reduction of the specific luminosity with shorter bunch spacing.
متن کاملFirst Beam Collision in the Kekb
The first beam collision study was done in the KEKB double ring collider. Beam collision conditions were found by searching beam-beam deflection curves in a trial-and-error method. From these curves, beam sizes at IP and a luminoisty was estimated.
متن کاملBeam-beam simulation studies for PEP-II and KEKB
We have performed 3D PIC simulations for PEP-II, SuperKEKB and KEKB parameters by using SLAC[1], LBL[3] and KEK[2] code. Input parameters for PEP-II, SuperKEKB and KEKB are listed in table 1, 2, 3, respectively. The simulation results are shown in Fig. 1, 2, 3 and 4. These results are in reasonable agreement. For PEP-II parameter at the LER horizontal tune of 0.5125, Luminosity by KEK code is s...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2003
ISSN: 0168-9002
DOI: 10.1016/s0168-9002(02)01783-7