In Texas, can a nuclear medicine tech perform a diagnostic CT?

I don’t have a reference to Texas Code regarding being a CT tech with only specialization in Nuc. Med., however, it would be difficult to imagine how a facility could justifiably expect Nuclear techs to comprehend or practice procedures which require an understanding of, among other principles, CT artifacts and the basic differences between gammar radiation versus x-radiation. Undoubtedly, fusion CT/PET would require one to understand the physical differences betweeen particle annihilation versus the use of x-rays and back projection to determine physiolgic differences between 18-FDG PET and enhanced/unenhanced CT.