DIRECT RADIOGRAPHIC IMAGING PANEL HAVING A DIELECTRIC LAYER WITH AN ADJUSTED TIME CONSTANT
    1.
    发明公开
    DIRECT RADIOGRAPHIC IMAGING PANEL HAVING A DIELECTRIC LAYER WITH AN ADJUSTED TIME CONSTANT 有权
    DIREKTER BILDSENSORFÜRRÖNTGENSTRAHLUNGMIT EINER DIELEKTRISCHEN SCHICHT,DIE EINE ANGEPASSTE ZEITKONSTANTE AUFWEIST

    公开(公告)号:EP1114468A4

    公开(公告)日:2001-09-12

    申请号:EP99930787

    申请日:1999-06-24

    CPC分类号: H01L27/14676

    摘要: A radiation detection sensor (10) includes a charge storage capacitor (14), a radiation sensitive layer (50) over the charge storage capacitor, and a dielectric layer (52) over the radiation sensitive layer. The dielectric layer has an adjusted resistivity rho resulting in a time constant tau = rho kappa epsilon 0 between 0.050 and 20 second, wherein kappa is the dielectric constant of the dielectric layer, and epsilon 0 is the permittivity of free space. The radiation sensitive layer is a photoconductor, and the dielectric layer is, preferably, a linear segmented polyurethane.

    摘要翻译: 辐射检测传感器(10)包括电荷存储电容器(14),电荷存储电容器上的辐射敏感层(50)以及辐射敏感层上的电介质层(52)。 电介质层具有调节的电阻率ρ,导致在0.050和20秒之间的时间常数tau =ρkε0,其中κ是电介质层的介电常数,并且ε0是自由空间的介电常数。 辐射敏感层是光电导体,并且电介质层优选为线性分段聚氨酯。