Publications by authors named "David Hillesheimer"
Article Synopsis
- * Data collection began in early 2019, and initial analyses revealed that KATRIN doubled the known limit on neutrino mass thanks to the excellent performance of its system components.
- * The laser Raman monitoring system (LARA) continuously tracks the gas composition in the experiment, providing precise measurements of tritium isotopic purity, essential for accurate neutrino mass calculations, achieving greater precision than required.
We present a new custom-built cell for high-resolution absorption spectroscopy of hazardous gases. The use of an aluminum light-pipe enables sensitive detection due to the small tube diameter and an increased particle density in the interaction volume for a limited analyte amount in the cell, while avoiding additional surfaces such as mirrors. To demonstrate this, we have used the cell to measure tritiated water isotopologues (HTO and traces of TO) for which spectroscopic data is scarce, due to the challenge of performing spectroscopy of these highly radio-chemical aggressive substances.
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