What R Factor are y'all using?
I'm using Agfa D5 and shooting for 2.5 density the r-factor I have is 2.7 . So what r-factor would y'all use and how did you get it? The formula I normally use is: 1st step ( wt + wt + weld build up) gives you total thickness of steel, align the total up with a chart and that gives you the energy of IR192. 2nd step ((pdi*pdi*eIR192*RF)/(Curies*1000)) basic algebra and wala. I always come up with two different shot times using the formula vs. the app, (app 45-60 seconds longer). I know the formula is right, been using it for years. So why isn't it working for me? The Barricade app is great, sure beats using the inverse square law. But don't get to dependent on it bc you cant use it tests.