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Electron Beam Characterization via Quantum Coherent Optical Magnetometry by DeStefano, Nicolas; Pegahan, Saeed; Ramaswamy, Aneesh; Aubin, Seth; Averett, T.; Camsonne, Alexandre; Malinovskaya, Svetlana; Mikhailov, Eugeniy E.; Park, Gunn; Zhang, Shukui; Novikova, Irina is a scholarly article available to read on EtoBox.

What is Electron Beam Characterization via Quantum Coherent Optical Magnetometry about?

We present a quantum optics-based detection method for determining the position and current of an electron beam. As electrons pass through a dilute vapor of rubidium atoms, their magnetic field perturb the atomic spin's quantum state and causes polarization rotation of a laser resonant with an optical transition of the atoms. By measuring the polarization rotation angle across the laser beam, we recreate a 2D projection of the magnetic field and use it to determine the e-beam position, size and total current. We tested this method for an e-beam with currents ranging from 30 to 110 {\mu}A. Our approach is insensitive to electron kinetic energy, and we confirmed that experimentally between 10 to 20 keV. This technique offers a unique platform for non-invasive characterization of charged particle beams used in accelerators for particle and nuclear physics research.

Author

DeStefano, Nicolas; Pegahan, Saeed; Ramaswamy, Aneesh; Aubin, Seth; Averett, T.; Camsonne, Alexandre; Malinovskaya, Svetlana; Mikhailov, Eugeniy E.; Park, Gunn; Zhang, Shukui; Novikova, Irina

Published

2024

Language

EN