3He Magnetometry Workshop

13 Oct 2024, 18:00 → 15 Oct 2024, 23:40 America/Detroit

340 West Hall and breakout rooms (University of Michigan)

Tim Chupp (University of Michigan - LSA Physics)

Accurate magnetic field calibrations over a broad range of fields are essential for a number of applications ranging from applied to fundamental, for example the muon g-2 measurement. Calibration with high-purity H2O NMR has been a standard for fields above a few 1/10's T while recent advances with 3He optical magnetometry promise more accurate and more precise calibration over a broad range of fields. To realize the full potential of 3He magnetometry and applications, a number of issues should be discussed and addressed including magnetometer design and construction for specific ranges of magnetic field, systematic effects, and the gyromagnetic ratio of atomic 3He. 

 This workshop intends to bring together a sustainable community to discuss the experimental and theoretical challenges of absolute magnetometry with 3He and applications to fundamental and applied science. 

In addition to local participation (encouraged), remote particaption via Zoom will also be facilitated.

Monday, 14 October

QED and theory issues for the 3He atom magnetic moment

1 QED theory of the nuclear magnetic shielding in 3He

Speaker: Krzysztof Pachucki (University of Warsaw)

2 Discussion

3 Higher-order nuclear effects in atomic spectra

Speaker: Natalia Oreshkina

4 Discussion

10:20 Break

5 Quadratic Zeeman Effect in 3He

Speaker: Gordon Drake (University of Windsor)

6 Discussion

12:00 Lunch

g-factor measurements

7 Direct measurement of the 3He+ magnetic moments

Speaker: Stefan Dickopf (MPK Heidelberg)

8 Discussion

9 Field calibration using protons in water

Speaker: Dave Kawall

10 Discussion

14:20 Break

11 H2O diamagnetic shielding measurement with 3He

Speaker: Tim Chupp (University of Michigan - LSA Physics)

12 Discussion

13 Designing uniform magnetic fields

Speaker: Christopher Crawford

14 Discsussion

15 Discussion: summary of what we know and need to know about gh'

Lab visit

18:30 Workshop Dinner

Tuesday, 15 October

3He Magnetometers in action

16 Low-frequency characterization of a 3He magnetometer for space applications

Speaker: Cristian Maria-Moreno

17 Discussion

18 Precise magnetometry at cryogenic temperatures with gaseous helium-3 NMR probes

Speaker: Werner Heil (Uni Mainz)

19 Discsussion

09:50 Break

20 Fermilab muon g-2 calibration with an absolute 3He magnetometer

Speaker: David Aguillard

21 Discussion

22 He-3 probe for J-PARC g-2/EDM and Museum experiment

Speaker: Naoyuki Sumi

23 Discussion

24 Potential for a commercial helium-3 magnetometer

Speaker: Tom Kornack

25 Discussion

12:10 Lunch

Applications, exotic physics, magnets and magnetic shielding

26 Precision Tests of Fundamental Interactions and Their Symmetries using Exotic Ions in Penning Traps

Speaker: Klaus Blaum

27 Discussion

28 Towards Nuclear Spin Squeezing in Helium-3 by Continuous Quantum Nondemolition Measurement

Speaker: Haroon Saeed

29 Discussion

14:30 Break

30 Cryogenic 3He NMR for the Project 8 Neutrino Mass Experiment

Speaker: Elise Novitsky

31 Discussion

32 Advancing EDM searches with ultracold molecules at FRIB

Speaker: Xing Wu

33 Discsussion

Workshop Summary