Author: Muto, R.
Paper Title Page
MOPMB024 Electron Cloud Measurements at J-PARC Main Ring 137
  • B. Yee-Rendón, H. Kuboki, R. Muto, K. Satou, M. Tomizawa, T. Toyama, M. Uota
    KEK, Ibaraki, Japan
  Electron cloud instability is presented in most of the high intensity proton rings. During the Slow beam extraction (SX) mode at Main Ring of J-PARC, signals related with its formation were observed. An electron cloud detector is installed downstream of the ElectroStatic Septum (ESS), to measure the electron signal. Additionally, scintillation detector with photomultiplier, a proportional counter and photo-diode were set closely to the electron cloud detector to observe the beam lost. This paper presents the measurements of the electron cloud and some of the conditions which support its creation, for instance the signal of lost particle from the beam loss monitors, the residual gas in the vacuum duct by using vacuum pressure gauges, etc.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMB024  
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