Green Emitting Fluorescent Screens
Digital Screen
for Radiography
. Brightest Gd2O2S : Tb for better sharpness and high emission efficiency
. Double layer structure for improved sharpness
. Extremely reliable in high exposure and high humidity conditions
. High large area uniformity
. available in sizes up to 72 x 127 cm
DRZ - Standard : High Resolution
DRZ - Plus : Balance between Brightness and Resolution
DRZ - High : Superior Brightness
Flat panel detector technologies are classified to two types, direct conversion method and indirect conversion method. Direct conversion method uses a-Se, photo-conductor, and indirect conversion method makes use of a scintillator, CsI:TI or Gd2O2S:Tb, and a-Si TFT.
There are many points of evaluations of these methods, less exposure, image quality, stability and safety, etc. Indirect method using Gd2O2S:Tb has good characteristics in the points of stability, safety, economy and ecology.
In digital radiographing systems using Gd2O2S:Tb fluorescent screen, many methods as like below are applied including Flat Panel Detector System.
Applications
High Image Quality type : FPD area sensor covered by screen
Foods and Baggage Inspection : line sensor covered by slit screen
Easy and brief structure type : CCD camera with fluoroscopic screen
PI-200
for Portal Imaging in Radio-Therapy
This screen has very much x-ray absorption and thick emitting layer of phosphor with super high brightness on MV radiographing.
