I can very much recommend this guide:
http://boards.cityofheroes.com/showf...Number=8840181
Use and abuse. There are SO many ways to build rad/rad.
I used a build close to the above solo AND in teams.
Whatever is good for you is good for your teammates (IMHO).
-Morty
Thx Morty! That was a good read. I came up with this:
Hero Plan by Mids' Hero Designer 1,401
http://www.cohplanner.com/
[u]Click this DataLink to open the build![u]
RadRadSolo: Level 50 Technology Defender
Primary Power Set: Radiation Emission
Secondary Power Set: Radiation Blast
Power Pool: Fitness
Power Pool: Leaping
Power Pool: Leadership
Power Pool: Speed
Ancillary Pool: Electricity Mastery
Hero Profile:
Level 1: Radiation Infection -- EndRdx(A), EndRdx(3), EndRdx(3), DefDeb(5), DefDeb(5), ToHitDeb(7)
Level 1: Neutrino Bolt -- Acc(A), Dmg(19), Dmg(19), Dmg(25)
Level 2: Accelerate Metabolism -- EndMod(A), EndMod(7), EndMod(9), RechRdx(9), RechRdx(11), RechRdx(11)
Level 4: Irradiate -- Acc(A), Dmg(25), Dmg(29), Dmg(31), EndRdx(40)
Level 6: Enervating Field -- EndRdx(A), EndRdx(13), EndRdx(13)
Level 8: Hurdle -- Jump(A)
Level 10: Electron Haze -- Acc(A), Dmg(31), Dmg(31), Dmg(33), EndRdx(40), RechRdx(40)
Level 12: Lingering Radiation -- Acc(A), RechRdx(15), RechRdx(15), RechRdx(17), EndRdx(17)
Level 14: Health -- Heal(A)
Level 16: Combat Jumping -- DefBuff(A)
Level 18: Super Jump -- Jump(A)
Level 20: Aim -- RechRdx(A), RechRdx(21), RechRdx(21)
Level 22: Stamina -- EndMod(A), EndMod(23), EndMod(23)
Level 24: Assault -- EndRdx(A), EndRdx(50)
Level 26: Tactics -- EndRdx(A), ToHit(27), ToHit(27), ToHit(29)
Level 28: Cosmic Burst -- Acc(A), Dmg(33), Dmg(33), Dmg(34), RechRdx(46), RechRdx(46)
Level 30: Acrobatics -- EndRdx(A)
Level 32: Radiant Aura -- Heal(A), Heal(34), Heal(34), RechRdx(37), RechRdx(37), EndRdx(37)
Level 35: Neutron Bomb -- Acc(A), Dmg(36), Dmg(36), Dmg(36), EndRdx(39), RechRdx(43)
Level 38: Hasten -- RechRdx(A), RechRdx(39), RechRdx(39)
Level 41: Thunder Strike -- Acc(A), Dmg(42), Dmg(42), Dmg(42), EndRdx(43), RechRdx(43)
Level 44: Shocking Bolt -- Acc(A), Hold(45), Hold(45), RechRdx(45), RechRdx(46)
Level 47: Power Sink -- EndMod(A), EndMod(48), EndMod(48), RechRdx(48), RechRdx(50), RechRdx(50)
Level 49: Mutation -- RechRdx(A)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Vigilance
Any good? 
EDIT: That last power can be changed. Didnt know what to get.
Tbh man, Rad/Rad is overpowered any way you look at it, they can even tank LR (witnessed it myself).
Just be careful with yours and leave some foes alive for the rest of us mate 
Hmmm i know you dont want to use set ios but procs in /rad can reach benny hill levels of silly. Especially when everytihng starts to trigger left and right.
Looks like a solid build.
Power Sink is a smart choice with all those toggles.
A note on Radiation Infection (RI):
Irradiate has a huge -Defense debuff.
I'd slot 2xEndRedux 3xToHitDebuff in RI.
This is my opinion, depending on your playstyle you might want the -defense in RI
I'm surprised you didn't take Charged Armor.
It seems you'll be playing more from range?
But then why Thunder Strike?
-2 cents from Morty
Hello defenders!
I would like some help with a rad/rad solo build. Im planning on doing the oro badges and my current rad/rad team build isnt working
i havent planned on using any sets! SO's is the way to go. Any tips or even a complete build to look at?
Thanks in advance!