There's a longer article explaining about Low-Background Steel on Hackaday: http://hackaday.com/2017/03/27/low-background-steel-so-hot-right-now/ http://hackad

There's a longer article explaining about Low-Background Steel on Hackaday: http://hackaday.com/2017/03/27/low-background-steel-so-hot-right-now/ http://hackaday.com/2017/03/27/low-background-steel-so-hot-r...