Single-Electron Detection and Spectroscopy via Relativistic Cyclotron Radiation
Name
PhysRevLett.114.162501.pdf
Size
1.08 MB
Format
Adobe PDF
Checksum (MD5)
60e6961d0920af751afa451b1cf664aa
Author(s)
Asner, D. M.
Bradley, Richard F.
de Viveiros, L.
Doe, P. J.
Fernandes, J. L.
Fertl, M.
Finn, E. C.
Jones, A. M.
Kofron, J. N.
LaRoque, B. H.
Date Issued
April 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Asner, D. M., et al. "Single-Electron Detection and Spectroscopy via Relativistic Cyclotron Radiation." Phys. Rev. Lett. 114, 162501 (April 2015). © 2015 American Physical Society
Version
Final published version
Abstract
It has been understood since 1897 that accelerating charges must emit electromagnetic radiation. Although first derived in 1904, cyclotron radiation from a single electron orbiting in a magnetic field has never been observed directly. We demonstrate single-electron detection in a novel radio-frequency spectrometer. The relativistic shift in the cyclotron frequency permits a precise electron energy measurement. Precise beta electron spectroscopy from gaseous radiation sources is a key technique in modern efforts to measure the neutrino mass via the tritium decay end point, and this work demonstrates a fundamentally new approach to precision beta spectroscopy for future neutrino mass experiments.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.114.162501
