[Info-area1] Seminario Fisica Sperimentale

[Carmen Marinelli]

*Mercoledì 5 Giugno 2019*****
**

**Ore 11 Aula 5**FISICA**

****

****DSFTA Università di Siena

*Dr. Luca Marmugi*
Department of Physics and Astronomy, University College London, Gower 
Street, London WC1E 6BT, United Kingdom

/terrà un seminario dal titolo:/


  *"Biomedical Imaging with Atomic Magnetometers: Progress and
  perspectives"*

Abstract

Building on recent demonstrations [1], electromagnetic induction imaging 
with atomic magnetometers has paved the path to a novel approach to 
biomedical imaging, with the promise of non-invasive and safe /in vivo 
/mapping of organs’ and tissues’ dielectric properties. This technique 
is expected to have a tremendous impact in research and clinical 
practice when electric conductivity plays – or is predicted to play – a 
relevant role [2]. Today, this field, actively investigated by various 
groups worldwide, is at the edge of a major breakthrough: the 
requirements for imaging biological tissues are met [3], and the first 
biomedical images appear to be close to realisation.

In this talk, the most recent progress in imaging with atomic 
magnetometers will be reviewed. The enabling features for biomedical 
imaging will be treated in detail. Sensitivity of the atomic 
magnetometers, extension to low-conductivity range, phase and imaging 
stability, sensitivity to spatial features and resolution, operational 
configurations, as well as perspectives for full 3D mapping and image 
reconstruction will be discussed [3-8].


[1] C. Deans, L. Marmugi, S. Hussain, F. Renzoni, /Electromagnetic 
induction imaging with a radio-frequency atomic magnetometer 
<https://aip.scitation.org/doi/10.1063/1.4943659>/, Appl. Phys. Lett. 
*108*, 10, 103503 (2016)
[2] L. Marmugi, F. Renzoni, /Optical Magnetic Induction Tomography of 
the Heart <https://www.nature.com/articles/srep23962>/, Sci. Rep. *6*, 
23962 (2016)
[3] L. Marmugi, C. Deans, F. Renzoni, /Atomic Magnetometry-Based 
Electromagnetic Imaging of Low-conductivity Semiconductors 
<https://arxiv.org/abs/1805.05743>/, arXiv:1805.05743
[4] C. Deans, L. Marmugi, F. Renzoni, /Sub-picotesla widely tunable 
atomic magnetometer operating at room-temperature in unshielded 
environments <https://arxiv.org/abs/1804.05124>/, Rev. Sci. Instr. *89*, 
8, 083111 (2018)
[5] P. Bevington, R. Gartman, W. Chalupczak, C. Deans, L. Marmugi, F. 
Renzoni, /Non-destructive structural imaging of steelwork with atomic 
magnetometers <https://arxiv.org/abs/1808.03226>/, Appl. Phys. Lett. 
*113*, 6, 063503 (2018)
[6] Y. Cohen, K. Jadeja, S. Sula, M. Venturelli, C. Deans, L. Marmugi, 
F. Renzoni, /A cold atom radio-frequency magnetometer 
<https://arxiv.org/abs/1902.08258>/, Appl. Phys. Lett. *114*, 073505 (2019)
[7] C. Deans, L. Marmugi, F. Renzoni, /Active Underwater Detection with 
an Array of Atomic Magnetometers 
<https://www.osapublishing.org/ao/abstract.cfm?uri=ao-57-10-2346>/, 
Appl. Opt. *57*, 10, 2346-2351 (2018)
[8] C. Deans, L. D. Griffin, L. Marmugi, F. Renzoni, /Machine learning 
based localization and classification with atomic magnetometers 
<https://arxiv.org/abs/1710.06629>/, Phys. Rev. Lett. *120*, 033204 (2018)

Tutti gli interessati sono invitati a partecipare.

https://www.dsfta.unisi.it/it/eventi/seminario-biomedical-imaging-atomic-magnetometers-progress-and-perspectives 
<cid:part9.78030047.FEFD7930 a unisi.it>




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