Title: Using cyclotron radiation emission for ultra-high resolution x-ray spectroscopy

Journal Article · · New Journal of Physics

Abstract Cyclotron radiation emission spectroscopy (CRES) is an approach to measuring the energy of an electron trapped in an externally applied magnetic field. The bare electron can come from different interactions, including photoelectric absorption, Compton scatters, beta decay, and pair production. CRES relies on measuring the frequency of the electron’s cyclotron motion, and because the measurement times extend over 10 6 –10 7 cycles, the energy resolution is on the order of a single electronvolt. To date, CRES has only been performed on internal beta-emitting radioisotopes, but the technology can be applied to x-ray spectrometery through appropriate selection of a target gas and sufficient intensity of the distinct x-ray source. The applications of this technology range from high-precision measurements of atomic energy levels to calibrations of basic science experiments, to trace element identification. In this work we explore the use of CRES for x-ray spectroscopy within the rubric of measuring the energy levels of argon. Though the energy levels of argon are well established, we adopt this motivation as an example question around which a detector may be designed. The issues we explore include target material, density, electron trapping depth, noise levels, and overall efficiency. We also discuss spectral deconvolution and how the multiple peaks obtained from a single target/source pair can be used to enhance the robustness of the measurement.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1833137
Report Number(s):
LLNL-JRNL-790159
Journal Information:
New Journal of Physics, Journal Name: New Journal of Physics Journal Issue: 3 Vol. 23; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (30)

The EBIT Calorimeter Spectrometer: A New, Permanent User Facility at the LLNL EBIT journal January 2008
Development of MMC Gamma Detectors for Precise Characterization of Uranium Isotopes journal June 2018
A perfect crystal X-ray analyser with meV energy resolution journal April 1996
Calibration of electron spectra journal January 1973
Recent developments in Geant4
  • Allison, J.; Amako, K.; Apostolakis, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 835 https://doi.org/10.1016/j.nima.2016.06.125
journal November 2016
X-ray Emission Spectroscopy of Nitrogen-Rich Compounds journal April 2011
Optimized transition-edge x-ray microcalorimeter with 2.4eV energy resolution at 5.9keV journal November 2005
NEXAFS at nitrogen K-edge and titanium L-edge using a laser-plasma soft x-ray source based on a double-stream gas puff target journal March 2019
A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap journal December 2019
Natural widths of atomic K and L levels, K α X‐ray lines and several K L L Auger lines journal April 1979
Argon KLL and KLM Auger Electron Spectra journal November 1977
The Kα 1,2 X-ray spectra of the 3d transition metals Cr, Fe, Co, Ni and Cu journal February 1987
Determining the neutrino mass with cyclotron radiation emission spectroscopy—Project 8 journal March 2017
Limitations on energy resolution of segmented silicon detectors journal April 2018
Measurements of K X-ray fluorescence cross-sections, fluorescence yields, level widths and radiative vacancy transition probabilities for the elements Zr, Mo, Cd, Er at 59.54 keV journal December 2017
Atomic Photoelectric Effect at High Energies journal February 1960
Widths and asymmetries of the K   α 1 and K   α 2 x-ray lines and the L 2 and L 3 fluorescence yields of the transition elements journal December 1974
X-ray fluorescence and Auger-electron coincidence spectroscopyof vacancy cascades in atomic argon journal June 1997
X-ray nonlinear optical processes using a self-amplified spontaneous emission free-electron laser journal September 2007
Electron radiated power in cyclotron radiation emission spectroscopy experiments journal May 2019
Relativistic cyclotron radiation detection of tritium decay electrons as a new technique for measuring the neutrino mass journal September 2009
Single-Electron Detection and Spectroscopy via Relativistic Cyclotron Radiation journal April 2015
Nonlinear Spectroscopy with X-Ray Two-Photon Absorption in Metallic Copper journal August 2018
High Resolution Photoexcitation Measurements Exacerbate the Long-Standing Fe XVII Oscillator Strength Problem journal June 2020
Measurement of the Th 229 Isomer Energy with a Magnetic Microcalorimeter journal September 2020
Ultrafast Time-Resolved Hard X-Ray Emission Spectroscopy on a Tabletop journal September 2016
X-Ray Wavelengths journal January 1967
X-Ray Fluorescence Yields, Auger, and Coster-Kronig Transition Probabilities journal October 1972
The Auger spectra in argon induced by electron impact – new measurements with high resolution journal January 2020
Theoretical photoionization cross sections from 1 to 1500 keV. report January 1973