These problems are low energy photon and its thin glare was mainly used to in the past, but not matter greatly in the recent industrial x-ray flares for the body, becomes a problem.
These issues are low energy photons and did in the past was mainly used for thin scintillator no serious problem, according to him, is an issue in the recent industrial X-rays of the scintillator.
the problem is that the energy of the photon, and according to the use of thin light mainly in the past is not a problem, but in recent years, the industrial x-ray flash body, become a problem.