高性能矿平面板X射线成像器通过叶片涂层进行成像
Aiping Zhang1,2, Shujie Tie1, Xiaojuan Lu1
1Sichuan Research Center of New Materials, Institute of Chemical Materials, China Academy of Engineering Physics, Chengdu, 610200, China.
Small methods
|December 10, 2024
概括
研究人员开发了一种新的刀片涂层方法,用于制造大型,均的矿X射线探测器膜. 这一突破使得低剂量应用的高性能平面X射线成像器成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 医疗成像医学成像
- 探测器物理学的物理
背景情况:
- 矿X射线探测器为低剂量成像提供了卓越的性能.
- 为平面X射线成像仪 (FPXI) 制造大面积,均和稳定的矿膜仍然是一个重大挑战.
- 可扩展的合成路线对于商业化矿X射线探测器技术至关重要.
研究的目的:
- 在薄膜晶体管 (TFT) 背景上开发大规模化物矿厚薄膜的一般合成路径.
- 为了使FPXI能够高通量制造均且稳定的矿膜.
- 为了弥合矿探测器潜力和市场进入之间的差距.
主要方法:
- 开发了一种先进的前体糊,优化用于刀片涂层.
- 直接沉积300微米厚的矿膜在使用刀片涂层的像素TFT基板上.
- 薄膜均性,暗电流,噪声,灵敏度,检测极限和空间分辨率的表征.
主要成果:
- 通过叶片涂层实现高度均的300微米厚的矿膜.
- 在制造的X射线探测器中证明了稳定的暗电流和最小的噪声.
- 实现了高灵敏度 (15200μC Gy-1 cm-2),低检测极限 (26.8 nGy-1),以及优异的空间分辨率 (0.95 lp mm-1) 与微不足道的交叉通话.
结论:
- 开发的叶片涂层方法为大面积矿X射线探测器薄膜提供了高通量制造解决方案.
- 制造的 (BA) 2(MA) 9Pb10I31矿FPXI在先进的X射线成像中表现出有前途的性能.
- 这项工作有助于基于矿的低剂量X射线探测器进入市场.
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