Center for Emerging Energy Sciences

                     

Projects  -  Advanced Materials Fabrication & Diagnostics:

AI Feature Identification: Platinum islands & volcanoes

 

 

Tritium extraction

Tritium extraction can usually be achieved with ~60% efficiency before measuring the activity using a 2009 Quantulus GCT 6220 Scintillator, which has a detection limit of about one femtomole.

     

 

 

Absorbed atmospheric 4He in various technical materials

Total helium amount outgassed and release temperature of out-gassing from different materials.:

·       PTFE melting temperature: 327 °C

·       Nylon melting temperature: 220 °C; decomposition temperature: 307 °C

 

 

 

Deuterium and Protium Purification System

We have developed a method that eliminates the ⁴He isotopes from the as-delivered stock supply of protium or deuterium gas.   Our FT-ICR MS techniques described above are used to determine the low ambient level of ⁴He in this supply gas.  In all cases encountered to date, the ambient ⁴He concentrations in hydrogen supply gasses have been lowered to undetectable levels (< 0.001 ppm). We also purge the environments that surround our cells and instruments to < 0.005 ppm of ⁴He, to prevent any accidental mis-interpretation of ambient ⁴He for produced ⁴He in our experiments. We also check for any air invasion isotopes (²⁰Ne or ⁴⁰Ar) in every aliquot during mass spectrometry.

 

 

 

 

 

Focused Ion Beam

DynaCool

Collaborative Projects Using Dynacool

Zeiss Crossbeam 540 Nanostructure characterization