One Shepard looks like a great program, but damn is it expensive.
That's how I know about One Shepard. Watched Brent for a while now.
I can respect the effort here my pom friend, but some of your advice is lacking.
Geiger counters are for low source threats, a post NUDET environment they're only use is decon of personnel and foodstuffs in a controlled environment, a GM device is easily overwhelmed and will peg out and give off false readings in high sources areas. What you want is a ion-chamber survey meter. Commercial tubes also run the gambit, some are decent and some are just junk, this is where reading and research comes in (anything Ludlum that doesn't cripple you is an immediately score, but they need calibration and maintenance before just tossing them in your inventory) . I'm running an entire CDV surplus line-up, re-capped and lab calibrated CDV-700, 715, and 717, they're pulse hardened and ruggedized. (Some response agencies still use CDV's, but it's the Model 6A, which are the best of the 700's)
Alpha and Beta can be stopped by layered clothing, but you're correct in avoiding inhalation of Alpha and Beta particles, once they lodge they'll still emit and will eventually cause cancer and other issues. Now, you've contradicted yourself a bit, one can't avoid areas of high Gamma/Neutron without the means to detect it, which is where a survey meter come in.
Do your research. I highly advise watching YT channels like Tom at antiprotons or Carl Willis, observe the equipment they use (they almost always provide info on what they're using and antiprotons has a video specifically on purchasing detection/survey equipment.) You can invest in a decent GM device and survey meter and not break the bank.
>To clarify what I meant about avoiding Gamma, is that you can't not breathe, but you might randomly avoid gamma as you move. If you can detect it then even better
Ahh, I gotcha and you're right.