activity
20142026
most citedFirst ultracold neutrons produced at TRIUMF

41 citations · 85 across the 14 of their papers we have counts for

collaborators

14 papers

physics.ins-det2026

A New High-Intensity Source for Ultracold Neutrons

K. Abe, S. Ahmed, B. Algohi +78

The TRIUMF UltraCold Advanced Neutron (TUCAN) collaboration has completed a new superthermal source for ultracold neutrons (UCNs) at TRIUMF. Neutrons produced in a spallation targe…

physics.ins-det2026

Performance of the TUCAN Magnetically Shielded Room

S. Ahmed, B. Algohi, D. Anthony +64

The TRIUMF Ultracold Advanced Neutron (TUCAN) collaboration has commissioned a large magnetically shielded room to be used for measuring the neutron electric dipole moment (nEDM) t…

physics.ins-det2025

Ultracold Neutron Guide-Coating Facility at U.Winnipeg

T. Hepworth, A. Zahra, B. Algohi +72

We report the construction and commissioning of a new ultracold neutron (UCN) guide-coating facility at the University of Winnipeg. The facility employs pulsed laser deposition (PL…

nucl-ex2025

Initial results of the TRIUMF ultracold advanced neutron source

B. Algohi, D. Anthony, L. Barrón-Palos +83

We report the first results on ultracold neutron production from a new spallation-driven superfluid He (He-II) source at TRIUMF, which is being prepared for a new, precise meas…

physics.ins-det2025

Neutron EDM Experiment with an Advanced Ultracold Neutron Source at TRIUMF

T. Higuchi, B. Algohi, D. Anthony +67

The TRIUMF Ultracold Advanced Neutron (TUCAN) collaboration has been developing a high-intensity ultracold neutron (UCN) source aimed at searching for the neutron electric dipole m…

physics.ins-det2025

Cryogenic systems for the TUCAN EDM experiment

Jeffery W. Martin, B. Algohi, D. Anthony +60

The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment…

physics.ins-det2024

Demonstration of magnetically silent optically pumped magnetometers for the TUCAN electric dipole moment experiment

Wolfgang Klassen, Shomi Ahmed, Kiera Pond Grehan +9

We report the performance of a magnetically silent optically pumped cesium magnetometer with a statistical sensitivity of 3.5 pT/rtHz at 1~Hz and a stability of 90 fT over 150 seco…

nucl-ex2022★ 7 cited

Characterization of electroless nickel-phosphorus plating for ultracold-neutron storage

H. Akatsuka, T. Andalib, B. Bell +51

Electroless nickel plating is an established industrial process that provides a robust and relatively low-cost coating suitable for transporting and storing ultracold neutrons (UCN…

physics.ins-det2022★ 4 cited

The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF

Ryohei Matsumiya, Hiroaki Akatsuka, Chris P. Bidinosti +45

The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of $10^{-27}\,e\cdot\mathrm{c…

physics.acc-ph2019★ 12 cited

A fast-switching magnet serving a spallation-driven ultracold neutron source

S. Ahmed, E. Altiere, T. Andalib +47

A fast-switching, high-repetition-rate magnet and power supply have been developed for and operated at TRIUMF, to deliver a proton beam to the new ultracold neutron (UCN) facility.…

nucl-th2018

Wigner-Eckart Theorem and the False EDM of Hg

Wolfgang Klassen, Jeffery W. Martin, Guillaume Pignol

In neutron electric dipole moment experiments, 199Hg is used as a comagnetometer. The comagnetometer suffers from a false EDM arising in leading order from a gradient dBz/dz in the…

physics.ins-det2018★ 16 cited

A beamline for fundamental neutron physics at TRIUMF

S. Ahmed, T. Andalib, M. J. Barnes +44

This article describes the new primary proton beamline 1U at TRIUMF. The purpose of this beamline is to produce ultracold neutrons (UCN) for fundamental-physics experiments. It del…

physics.ins-det2018★ 41 cited

First ultracold neutrons produced at TRIUMF

S. Ahmed, E. Altiere, T. Andalib +50

We installed a source for ultracold neutrons at a new, dedicated spallation target at TRIUMF. The source was originally developed in Japan and uses a superfluid-helium converter co…

physics.ins-det2014★ 5 cited

Large Magnetic Shielding Factor Measured by Nonlinear Magneto-optical Rotation

Jeffery W. Martin, Russell R. Mammei, Wolfgang Klassen +5

A passive magnetic shield was designed and constructed for magnetometer tests for the future neutron electric dipole moment experiment at TRIUMF. The axial shielding factor of the…