Neutron Electric Dipole Moment Workshop 2026

Session

Wed -3

2 Sept 2026, 20:00

Mattli Antoniushaus, Morschach

Conveners

Wed -3

• Takeyasu Ito (Los Alamos National Laboratory)

Description

Precise magnetic field measurement methods of small magnetic fields, vapor-based magnetometers, magnetometer calibration methods, detection and measurment of magnetic contaminations

6. Prototype shim coil system for magnetic-field control in the TUCAN EDM Experiment

Amala Jaison (University of Manitoba)

02/09/2026, 20:00

Oral Presentation

Magnetic-field uniformity is a critical requirement for neutron electric dipole mo-
ment (nEDM) experiments, where magnetic-field gradients can reduce neutron spin
coherence and contribute to systematic frequency shifts. The TUCAN (TRIUMF Ultra
Cold Advanced Neutron) EDM experiment at TRIUMF requires a stable and homoge-
neous magnetic-field environment for precision neutron...

28. Magnetic impurity scanner for the Los Alamos nEDM experiment

Steven Clayton (Los Alamos National Laboratory)

02/09/2026, 20:25

Oral Presentation

A magnetic impurity scanner was developed to qualify components for the magnetically shielded environment of the Los Alamos nEDM experiment. The scanner uses a turntable on an air bearing to move samples under a magnetometer which itself can be moved to different turntable radii with a gantry robot. This is all contained within a small magnetically shielded room. This presentation will go over...

37. Controlling Magnetic Contamination in the n2EDM Experiment

Cameron Blake Erickson (PSI - Paul Scherrer Institut)

02/09/2026, 20:50

Oral Presentation

Modern neutron electric dipole moment experiments require high precision characterization of magnetic fields to adequately control systematic uncertainties. The measured magnetic fields are modeled by an expansion that practically must assume a finite order and often that the experimental volume is free of magnetic sources. Magnetic contamination, defined as unintended magnetic fields...

56. Simulating ultra-cold neutron transport and storage for the n2EDM experiment

Sylvain Vanneste (Johannes Gutenberg University Mainz)

02/09/2026, 21:15

Oral Presentation

In order to precisely understand and characterise UCN behaviour after production at the Paul Sherrer Institute, transport, storage, and finally detection in the n2EDM experiment, a tailored simulation framework is being developed using the PENTrack software. In addition, two custom-made packages are being developed, that facilitate the configuration and analysis of those simulations. The...