Demonstration of tritium adsorption on graphene.

In this work, we report on studies of graphene exposed to tritium gas in a controlled environment. The single layer graphene on a SiO/Si substrate was exposed to 400 mbar of T, for a total time of ∼55 h. The resistivity of the graphene sample was measured during tritium exposure using the van der Pauw method.

µRA-A New Compact Easy-to-Use Raman System for All Hydrogen Isotopologues.

We have developed a new compact and cost-efficient Laser-Raman system for the simultaneous measurement of all six hydrogen isotopologues. The focus of this research was set on producing a tool that can be implemented in virtually any existing setup providing in situ process control and analytics. The "micro Raman (µRA)" system is completely fiber-coupled for an easy setup consisting of (i) a spectrometer/CCD unit, (ii) a 532 nm laser, and (iii) a commercial Raman head coupled with a newly developed, tritium-compatible all-metal sealed DN16CF flange/Raman window serving as the process interface.