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| THPSC23 |
Low Energy "Pepper-Pot" Emittance Measuring Device |
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- V.S. Klenov, S. Bragin, O. Volodkevich, V. Zubets
RAS/INR, Moscow, Russia
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The device which includes the "pepper-pot" mask, the quartz screen, and the CCD camera was used for measure the transverse emittances of beam at the exit of H-minus ion source for 7-15 keV beam energy. Emittance measuring at such low ions energy required low-level signals from quartz screen to be recorded and processed, while the intense glow of the gas discharge plasma created a spurious illumination of the quartz screen. The issues of obtaining sufficient signal level at such low ions energy, methods of subtracting the signal of non-ion-beam illumination of quartz screen from the full amplitude of the signal as well as issues of data processing and presentation of phase portraits are discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC23
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