This work presents a real-time diagnostic method to monitor and characterize a positron beam by using a microchannel plate (MCP), a phosphor screen and a CCD camera. We propose a digitizing method based on single-particle detection. This approach offers the possibility to quantify the particles per unit time that interact with the MCP. This type of detector is based on a consolidated technology and its efficiency has been demonstrated for nuclear radiation and particles in many experiments. This work also presents the detection efficiency as a function of the positron kinetic energy in the range from 50 eV to 17 keV, essential for a complete characterization of the particle beam. The method allows the characterization of a positron beam in real time with a spatial resolution of the order of tens of microns.
Real-time monitoring of a positron beam using a microchannel plate in single-particle mode / G. Vinelli, R. Ferragut, M. Giammarchi, G. Maero, M. Rome', V. Toso. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 15:11(2020), pp. P11030.1-P11030.16. [10.1088/1748-0221/15/11/P11030]
Real-time monitoring of a positron beam using a microchannel plate in single-particle mode
M. Giammarchi;G. Maero;M. Rome';
2020
Abstract
This work presents a real-time diagnostic method to monitor and characterize a positron beam by using a microchannel plate (MCP), a phosphor screen and a CCD camera. We propose a digitizing method based on single-particle detection. This approach offers the possibility to quantify the particles per unit time that interact with the MCP. This type of detector is based on a consolidated technology and its efficiency has been demonstrated for nuclear radiation and particles in many experiments. This work also presents the detection efficiency as a function of the positron kinetic energy in the range from 50 eV to 17 keV, essential for a complete characterization of the particle beam. The method allows the characterization of a positron beam in real time with a spatial resolution of the order of tens of microns.File | Dimensione | Formato | |
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