IPAC2017 - List of Authors (Calvi, G.M.A.)

Paper	Title	Page
MOPVA017	Electrostatic Pickup in the CNAO Injection Line	884
	A. Parravicini, G.M.A. Calvi, E. Rojatti, C. Viviani CNAO Foundation, Milan, Italy
	The paper concerns the electrostatic pickup (PUB) installed in the injection line of the CNAO, the Italian facility for Oncological Hadrontherapy. The PUB has been designed with the purpose of having a continuous and non-interceptive measurement of the beam transverse position short upstream the injection in the synchrotron. Detector commissioning has not been immediate since a number of primary ions and secondary electrons fall on the PUB electrodes in many configurations, resulting in a significantly distorted signal. After the identification, and consequent rejection, of a few circumstances where the PUB cannot work properly, the commissioning proceeded on a twofold way, designing a mechanical shield to stop ions before hitting the electrodes and developing an advanced data-analysis algorithm to go beyond the signal distortion. The use of the new algorithm was sufficient to make the PUB successfully working and, after a proper calibration with upstream and downstream profile monitors, the PUB started to provide the expected results. The PUB is working as a watch-dog since January 2016. Details on the data-analysis algorithm and first year measurements are discussed in the paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPVA017
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Paper

Title

Page

Electrostatic Pickup in the CNAO Injection Line

884

A. Parravicini, G.M.A. Calvi, E. Rojatti, C. Viviani
CNAO Foundation, Milan, Italy

The paper concerns the electrostatic pickup (PUB) installed in the injection line of the CNAO, the Italian facility for Oncological Hadrontherapy. The PUB has been designed with the purpose of having a continuous and non-interceptive measurement of the beam transverse position short upstream the injection in the synchrotron. Detector commissioning has not been immediate since a number of primary ions and secondary electrons fall on the PUB electrodes in many configurations, resulting in a significantly distorted signal. After the identification, and consequent rejection, of a few circumstances where the PUB cannot work properly, the commissioning proceeded on a twofold way, designing a mechanical shield to stop ions before hitting the electrodes and developing an advanced data-analysis algorithm to go beyond the signal distortion. The use of the new algorithm was sufficient to make the PUB successfully working and, after a proper calibration with upstream and downstream profile monitors, the PUB started to provide the expected results. The PUB is working as a watch-dog since January 2016. Details on the data-analysis algorithm and first year measurements are discussed in the paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPVA017

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)