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28 August 2023 to 1 September 2023
University of Vienna
Europe/Vienna timezone

Building an atomic source for the Project 8 experiment

30 Aug 2023, 15:15
15m
Audimax (University of Vienna)

Audimax

University of Vienna

Universitätsring 1 A-1010 Vienna, Austria
Parallel talk Neutrino physics and astrophysics Neutrino physics and astrophysics

Speaker

Dr Larisa Thorne (Johannes Gutenberg University Mainz)

Description

There have been significant gains in characterizing neutrino properties in recent years, however the absolute neutrino mass scale continues to be elusive.
The Project 8 collaboration seeks to probe this quantity directly via kinematic analysis of tritium beta decay, using the cyclotron radiation emission spectroscopy (CRES) technique. In order to make neutrino mass measurements with a design sensitivity of 40meV, the Project 8 experiment must use atomic tritium. To create an atomic tritium source suitable for the Project 8 experiment, molecular tritium is thermally dissociated into atomic tritium, which is then state selected and cooled.
I will report on the current status of the atomic source development, covering subsystems for dissociation in coaxial cracker design, followed by accommodation from a surface which is held at O(10) K. The requisite low-field-seeking states are then magnetically guided, evaporatively cooled, and injected into the trap where the atoms decay.

Submitted on behalf of a Collaboration? Yes

Primary author

Dr Larisa Thorne (Johannes Gutenberg University Mainz)

Presentation materials