GADGET: Advancements in UCN Detection for Next-Generation Experiments

General ILL seminar

organised by College 3

Friday, 1 December 2023 at 10h30

Seminar room, ILL 50, 1st floor

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“ GADGET: Advancements in UCN Detection for Next-Generation Experiments ”

William SAENZ-AREVALO

Laboratoire Physique Nucléaire et Hautes Energies, william.saenz-arevalo@lpnhe.in2p3.fr

Since their initial production in 1969, Ultracold Neutrons (UCN) have played a  crucial role in probing new physics through high-precision measurements. As experimental techniques for these investigations undergo upgrades, there is a continuous need for the development of state-of-the-art UCN detectors. This presentation highlights the innovative UCN gaseous detector, GADGET, specifically designed within the framework of the n2EDM project [1].

The talk will delve into the distinctive features of GADGET, shedding light on its design principles and operational characteristics. Notably, the discussion will  emphasize recent breakthroughs in the field, particularly the results obtained from the neutron-to-hidden-neutron oscillation tests conducted during the monitoring of the UCN beam at the Institut Laue-Langevin (ILL) using GADGET [2]. These results not only showcase the detector's capabilities but also contribute to advancing our understanding of fundamental physics.

[1] Ayres, N.J., Ban, G., Bienstman, L. et al. The design of the n2EDM experiment. Eur. Phys. J. C 81, 512, 2021.
[2]  G. Ban, J. Chen, T. Lefort, et al. Search for Neutron-to-Hidden-Neutron Oscillations in an Ultracold Neutron Beam. Phys. Rev. Lett. 131, 191801, 2023.

Estelle Chanel (College 3 Secretary)