Soft X-ray energy corresponding of CsI(Tl) scintillator

The CsI(Tl) scintillator is a key part for the transition from X-ray to visible light in X-ray detectors, which is of crucial importance in X-ray diagnosis for inertial confined fusion. Geant4 is used to imitate the mechanism of the energy deposition of X-ray in the CsI(Tl) scintillator. 1-5 keV X-rays could deposit energies into the CsI(Tl) scintillator with different thickness(20, 30, or 50 m). The deposition energy and deposition efficiency are compared. The results show that the deposition energy increases with the increase of CsI(Tl) scintillator thickness. This theoretically investigation has provided valid proofs for the preparation of the forthcoming experimental study.