t tarbox... off hand for unspecified norm on building surfaces, i'd get some gas proportional probes 'n hook them up to a meter that can be used for both scanning and static reading purposes. i'd get one probe for alpha and one probe for beta/gamma. if you're going for in the ground work, it'll be harder due to geometry and energies, but a na i probe and working knowledge of the baseline for gamma at specified depths will give yinze a indication of where the stuff is.
probes i would use would be ludlum 43-68 gas proportionals. they've got a 100cm2 active surface area....makes it easy to do yer dpm/100cm2 reporting for the na i i'd get a ludlum 44-2 or a 44-10.
meters i prefer are the ludlum 2221...a meter that you can really abuse, no beeps, no whistles, full manual. the eberline asp2e works well also, but isn't anywhere near as durable, but has more capabilities for the hitech kinda surveyor.
'diodes with rad paint'? sounds like sumbuddy has their hands on an old building with radium sources/painted signs. have fun dude, that is a fun isotope to play with.
