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MOPP013 |
Faraday Cup Selector for DC-280 Cyclotron |
controls, diagnostics, beam-transport, ECR |
103 |
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- V.V. Aleinikov, S. Pachtchenko
JINR, Dubna, Moscow Region, Russia
- K.P. Sychev, V. Zabanova
JINR/FLNR, Moscow region, Russia
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New isochronous cyclotron DC-280, the basic facility of Super Heavy Element (SHE) factory was put into operation in the FLNR JINR on March 25, 2019. Key role in beam diagnostics for lossless transportation is played by Faraday cups. Five elements were installed along the two injection lines, and 12 elements on the five transport channels to the experimental facilities. The software was developed to automatically select the active Faraday cup depending on its location and track the current on a single indicator. This paper describes basic principles and algorithm of the Faraday cup Selector module which is a part of the DC-280 cyclotron control system.
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Poster MOPP013 [2.214 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2019-MOPP013
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About • |
paper received ※ 27 August 2019 paper accepted ※ 08 September 2019 issue date ※ 10 November 2019 |
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TUPP022 |
Development of the Calculation Method of Injection Beam Trajectory of RIKEN AVF Cyclotron with 4D Emittance Measured by the Developed Pepper-Pot Emittance Monitor |
emittance, space-charge, injection, ECR |
351 |
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- Y. Kotaka, N. Imai, Y. Ohshiro, Y. Sakemi, S. Shimoura, H. Yamaguchi
CNS, Saitama, Japan
- A. Goto, M. Kase, T. Nagatomo, T. Nakagawa, J. Ohnishi
RIKEN Nishina Center, Wako, Japan
- K. Hatanaka
RCNP, Osaka, Japan
- H. Muto
Suwa University of Science, Chino, Nagano, Japan
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The Center for Nuclear Study, the University of Tokyo and RIKEN Nishina Center have been developing the AVF Cyclotron system at RIKEN. One of the important developments is to improve the transport system of the injection beam line. The transport efficiencies tend to decrease as beam intensities increase. To solve this problem, we developed the calculation method to trace a beam trajectory with a four-dimensional (4D) beam emittance measured by pepper-pot emittance monitor (PEM) as initial value. The reason for using the 4D beam emittance is that the transport system has rotating quadrupole magnets and solenoid coils, and that the space charge effect can be introduced. The beams through a pepper-pot mask can be detected on the potassium bromide fluorescent plate inclined 45 degree to the beam to be recorded by digital camera using developed PEM. We compared the calculated beam trajectory with the measurement of other beam diagnostics and quantified the degree of fit. It has been found that the degree of fit is improved by changing fiducial points on the fluorescent plate and optimizing the thickness of the fluorescent agent and the exposure time and gain of the digital camera.
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Poster TUPP022 [2.306 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP022
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About • |
paper received ※ 04 September 2019 paper accepted ※ 10 September 2019 issue date ※ 10 November 2019 |
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Export • |
reference for this paper using
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