OK, you just trained in a specialty, you should have some job assistance at your school. Most of the NDT types in nuclear are already experienced (did their time in pipeline / chemical plants).
Don't jump off your recent training to fall into Decon / RP - look outside of nuclear for now until you can complete your level II certs, etc. Then you may have better luck getting into nuclear.
Expand your view - NDT work is in almost all industries, from power, manufacturing, construction, etc.
Good luck.