Hydrogen Electron Cyclotron Resonance Dissociator Demonstrator for the Project 8 Experiment
Abstract
Project 8, a neutrino mass experiment, employs the novel frequency technique of cyclotron radiation emission spectroscopy (CRES) to perform a model independent measurement of neutrino mass via tritium beta decay. Our pioneering experiment will consist of a beamline that dissociates molecular tritium, surface cools atoms through accommodation, evaporatively cools and slows atoms, and traps them in a CRES resonant cavity to advance towards our sensitivity goal of 40 meV/c^2 for our final electron-weighted neutrino mass measurement. We are prototyping an electron cyclotron resonance (ECR) dissociator that uses a tunable 1 kW 2.45 GHz RF generator and electromagnets to ignite a hydrogen plasma in an aluminum resonant cavity. Our ECR source is designed to produce a high atom flux (~10^19 atoms/second) near room temperature. We present the engineering development, gas diagnostics, and spectroscopy data from our hydrogen plasma.
Related
- Oscillatory photoresistance on the high field side of the cyclotron resonance
- Anisotropic Maxwell neural operator for rapid parametric full-wave modelling of ion cyclotron resonance heating
- Intracavity Dual-Resonance Stimulated Raman Spectroscopy with Cavity Ringdown Readout for Resolving Hydrogen Rotational Raman Transitions
- Construction, commissioning, and performance of the ENUBET demonstrator
- Improvement of Electron Cyclotron Emission Radiometer Towards Real-Time Temperature Measurement in the WEST tokamak
BibTeX
@misc{oueslati2026hydrogen,
title = {{Hydrogen Electron Cyclotron Resonance Dissociator Demonstrator for the Project 8 Experiment}},
author = {Manjinder Oueslati and Walter Pettus and Anna Reine and Hamish Robertson},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.03972},
eprint = {2611.03972},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.03972},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Hydrogen Electron Cyclotron Resonance Dissociator Demonstrator for the Project 8 Experiment
AU - Manjinder Oueslati
AU - Walter Pettus
AU - Anna Reine
AU - Hamish Robertson
PY - 2026
DA - 2026/11/02
PB - arXiv
DO - 10.48550/arxiv.2611.03972
UR - https://arxiv.org/abs/2611.03972
AB - Project 8, a neutrino mass experiment, employs the novel frequency technique of cyclotron radiation emission spectroscopy (CRES) to perform a model independent measurement of neutrino mass via tritium beta decay. Our pioneering experiment will consist of a beamline that dissociates molecular tritium, surface cools atoms through accommodation, evaporatively cools and slows atoms, and traps them in a CRES resonant cavity to advance towards our sensitivity goal of 40 meV/c^2 for our final electron-weighted neutrino mass measurement. We are prototyping an electron cyclotron resonance (ECR) dissociator that uses a tunable 1 kW 2.45 GHz RF generator and electromagnets to ignite a hydrogen plasma in an aluminum resonant cavity. Our ECR source is designed to produce a high atom flux (~10^19 atoms/second) near room temperature. We present the engineering development, gas diagnostics, and spectroscopy data from our hydrogen plasma.
ER -