Determination of diffusion coefficients of mercury atoms in various gases from longitudinal spin relaxation in magnetic gradients

B. Clément, M. Guigue, A. Leredde, G. Pignol, D. Rebreyend, S. Roccia, and S. Touati

Phys. Rev. A 106, 062815 – Published 19 December 2022

Abstract

We present a method to measure the binary diffusion coefficient of mercury atoms in a gas at room temperature and low pressure. It is based on the measurement of the longitudinal spin relaxation of optically pumped mercury-199 atoms in a magnetic field gradient. We provide a consistent set of diffusion coefficients for helium-3, helium-4, argon, krypton, xenon, nitrogen, carbon dioxide, oxygen, and air.

Received 12 September 2022
Accepted 5 December 2022

DOI:https://doi.org/10.1103/PhysRevA.106.062815

Physics Subject Headings (PhySH)

Diffusion Spin relaxation

Nuclear magnetic resonance Optical pumping

Atomic, Molecular & OpticalGeneral Physics

Authors & Affiliations

B. Clément ¹, M. Guigue ², A. Leredde¹, G. Pignol ^1,*, D. Rebreyend¹, S. Roccia¹, and S. Touati ¹

¹Université Grenoble Alpes, CNRS, Grenoble INP, LPSC-IN2P3, 38000 Grenoble, France
²Sorbonne Université, Université Paris Cité, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), 75005 Paris, France

^*guillaume.pignol@lpsc.in2p3.fr

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Vol. 106, Iss. 6 — December 2022

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