Electron beam characterization via fluorescence imaging of Rydberg states in atomic vapor
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918005080850432 |
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| author | Behary, Rob Su, Kevin DeStefano, Nicolas Vorobiov, Mykhailo Averett, T. Camsonne, Alexandre Zhang, Shukui Fancher, Charlie Malvania, Neel Mikhailov, Eugeniy Aubin, Seth Novikova, Irina |
| author_facet | Behary, Rob Su, Kevin DeStefano, Nicolas Vorobiov, Mykhailo Averett, T. Camsonne, Alexandre Zhang, Shukui Fancher, Charlie Malvania, Neel Mikhailov, Eugeniy Aubin, Seth Novikova, Irina |
| contents | We demonstrate an all-optical, minimally invasive method for electron beam (e-beam) characterization using Rydberg electrometry. The e-beam passes through a dilute Rb vapor prepared in a quantum superposition of ground and Rydberg states that reduces resonant absorption in a narrow spectral region. Imaging the modifications of Rb fluorescence due to shifts in the Rydberg state from the e-beam electric field allows us to reconstruct e-beam width, centroid position, and current. We experimentally demonstrate this technique using a 20 keV e-beam in the range of currents down to 20 $μ$A, and discuss technical challenges produced by environmental electric potentials in the detection chamber. Overall, we demonstrate the promising potential of such an approach as a minimally invasive diagnostic for charged particle beams. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_21144 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electron beam characterization via fluorescence imaging of Rydberg states in atomic vapor Behary, Rob Su, Kevin DeStefano, Nicolas Vorobiov, Mykhailo Averett, T. Camsonne, Alexandre Zhang, Shukui Fancher, Charlie Malvania, Neel Mikhailov, Eugeniy Aubin, Seth Novikova, Irina Atomic Physics Nuclear Experiment Accelerator Physics Quantum Physics We demonstrate an all-optical, minimally invasive method for electron beam (e-beam) characterization using Rydberg electrometry. The e-beam passes through a dilute Rb vapor prepared in a quantum superposition of ground and Rydberg states that reduces resonant absorption in a narrow spectral region. Imaging the modifications of Rb fluorescence due to shifts in the Rydberg state from the e-beam electric field allows us to reconstruct e-beam width, centroid position, and current. We experimentally demonstrate this technique using a 20 keV e-beam in the range of currents down to 20 $μ$A, and discuss technical challenges produced by environmental electric potentials in the detection chamber. Overall, we demonstrate the promising potential of such an approach as a minimally invasive diagnostic for charged particle beams. |
| title | Electron beam characterization via fluorescence imaging of Rydberg states in atomic vapor |
| topic | Atomic Physics Nuclear Experiment Accelerator Physics Quantum Physics |
| url | https://arxiv.org/abs/2504.21144 |