If your looking into a carrier in this industry, there are some options. All of the advise so far is correct. Once you get your foot in the door at a plant, you need to make sure you keep your record clean, always disclose everything, even if its traffic ticket, there looking for honesty and integrity.
Going the Decon route is a good place to start. You will learn as you go with respect to contamination and radiation common practices.. etc.. once you have made it through G.E.T (General Employee Training).
When you get to the plant if the Supervisor doesn't know you, let him know who you are and that you are new. This will aid in your job assignments as well as who you are placed with to learn/help.
Absolutely let Joe at Bartlett know you will go ANYWHERE they put you and you will appreciate the experience.
Once you make SR Decon you should be looking for Jr RP positions (this is due to only allowing a certain amount of decon time to go towards your Jr RP Time).
When you start to do Jr RP time you need to access this information on this site to help once again with your path forward.
IF you look at other options like getting a degree in Radiological Sciences or Physics that works also, but keep in mind it will be another 2 years before you get an associates and THEN you will start as a Jr RP Tech, possibly missing the "Hands On" education as a Deconner.
This rout also has a lot of compition - See other threads concerning the time it takes to go from Jr RP to Sr.
As I stated earlier, there are lots of options. Keep your record clean, learn from your peers, ask questions. HAVE FUN!... This is a fun carrier path you have chosen, you will meet a lot of different people with a LOT of different personality's.