I had ct angio (w dye) last january, is it safe to have chest xray this month considering the amount of radiation during ct?

Radiation exposure: Yes, one CT and one chest xray is within safe limits.

Really good question: you are right to inquire about this. It all depends on how important the chest xray is. Please discuss your concerns with your doctor so that she and you can plan accordingly. It's a good strategy to think about the radiation risk when getting these tests. Thanks for asking.