Alkali-metal spin maser for non-destructive tests

P. Bevington; R. Gartman; W. Chalupczak

doi:10.1063/1.5121606

Alkali-metal spin maser for non-destructive tests

P. Bevington, R. Gartman, W. Chalupczak^*

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Radio-frequency atomic magnetometers offer attractive alternatives to standard detection methods in nondestructive testing, which are based on inductive measurements. We demonstrate a magnetometer in the so-called spin maser configuration, which addresses two important challenges of the technique: shifts in the radio frequency resonance position caused by magnetically permeable samples and the sensor bandwidth. Key properties of the self-oscillating sensor are presented in both a magnetically shielded and an open environment. Demonstration of defect detection via magnetic induction tomography in a ferromagnetic carbon steel sample is presented. The configuration discussed paves the way for a simple, rapid, and robust nondestructive material defect detection system based on an atomic magnetometer.

Original language	English
Article number	173502
Journal	Applied Physics Letters
Volume	115
Issue number	17
DOIs	https://doi.org/10.1063/1.5121606
Publication status	Published - 21 Oct 2019

Funding

This work was funded by the UK Department for Business, Innovation and Skills. P.B. was supported by the Engineering and Physical Sciences Research Council (EPSRC) (No. EP/P51066X/1).

Keywords

magnetic equipment
electrical properties and parameters
amplifiers
magnetic fields
magnetic induction tomography
nondestructive testing techniques
radiofrequency spectroscopy
Larmor precession
optical phase matching

Access to Document

10.1063/1.5121606

Data for: "Alkali-metal spin maser for non-destructive tests"
Bevington, P. (Creator), Chalupczak, W. (Creator) & Gartman, R. (Creator), University of Strathclyde, 11 May 2026
DOI: 10.15129/22dedfce-30bf-4c30-940a-30e475307c29
Dataset

Cite this

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title = "Alkali-metal spin maser for non-destructive tests",

abstract = "Radio-frequency atomic magnetometers offer attractive alternatives to standard detection methods in nondestructive testing, which are based on inductive measurements. We demonstrate a magnetometer in the so-called spin maser configuration, which addresses two important challenges of the technique: shifts in the radio frequency resonance position caused by magnetically permeable samples and the sensor bandwidth. Key properties of the self-oscillating sensor are presented in both a magnetically shielded and an open environment. Demonstration of defect detection via magnetic induction tomography in a ferromagnetic carbon steel sample is presented. The configuration discussed paves the way for a simple, rapid, and robust nondestructive material defect detection system based on an atomic magnetometer.",

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AU - Bevington, P.

AU - Gartman, R.

AU - Chalupczak, W.

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N2 - Radio-frequency atomic magnetometers offer attractive alternatives to standard detection methods in nondestructive testing, which are based on inductive measurements. We demonstrate a magnetometer in the so-called spin maser configuration, which addresses two important challenges of the technique: shifts in the radio frequency resonance position caused by magnetically permeable samples and the sensor bandwidth. Key properties of the self-oscillating sensor are presented in both a magnetically shielded and an open environment. Demonstration of defect detection via magnetic induction tomography in a ferromagnetic carbon steel sample is presented. The configuration discussed paves the way for a simple, rapid, and robust nondestructive material defect detection system based on an atomic magnetometer.

AB - Radio-frequency atomic magnetometers offer attractive alternatives to standard detection methods in nondestructive testing, which are based on inductive measurements. We demonstrate a magnetometer in the so-called spin maser configuration, which addresses two important challenges of the technique: shifts in the radio frequency resonance position caused by magnetically permeable samples and the sensor bandwidth. Key properties of the self-oscillating sensor are presented in both a magnetically shielded and an open environment. Demonstration of defect detection via magnetic induction tomography in a ferromagnetic carbon steel sample is presented. The configuration discussed paves the way for a simple, rapid, and robust nondestructive material defect detection system based on an atomic magnetometer.

KW - magnetic equipment

KW - electrical properties and parameters

KW - amplifiers

KW - magnetic fields

KW - magnetic induction tomography

KW - nondestructive testing techniques

KW - radiofrequency spectroscopy

KW - Larmor precession

KW - optical phase matching

U2 - 10.1063/1.5121606

DO - 10.1063/1.5121606

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AN - SCOPUS:85074059528

SN - 0003-6951

VL - 115

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 173502

ER -

Alkali-metal spin maser for non-destructive tests

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