Digital camera sensors can actually be used to detect gamma particles. There's a legitimate app you can use on some android phones that can act as a relatively

Digital camera sensors can actually be used to detect gamma particles. There's a legitimate app you can use on some android phones that can act as a relatively accurate cheap radiation detector. It requires you to tape over your camera lens with a piece of electrical tape and then to calibrate your phone in an area with only normal background radiation. The app is https://play.google.com/store/apps/details?id=com.rdklein.radioactivity&hl=en https://play.google.com/store/apps/details?id=com.rdklein.ra....