A new DOI detector design using discrete crystal array with depth-dependent reflector patterns and single-ended readout

Seung-Jae Lee; Chaeyeong Lee; Jihoon Kang; Yong Hyun Chung

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A new DOI detector design using discrete crystal array with depth-dependent reflector patterns and single-ended readout

机译：一种新的DOI检测器设计，使用具有与深度相关的反射器图案和单端读数的离散晶体阵列

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摘要

We developed a depth of interaction (DOI) positron emission tomography (PET) detector using depth-dependent reflector patterns in a discrete crystal array. Due to the different reflector patterns at depth, light distribution was changed relative to depth. As a preliminary experiment, we measured DOI detector module crystal identification performance. The crystal consisted of a 9×9 array of 2mm×2mm×20mm lutetium-yttrium oxyorthosilicate (LYSO) crystals. The crystal array was optically coupled to a 64-channel position-sensitive photomultiplier tube with a 2 mm×2 mm anode size and an 18.1 mm×18.1 mm effective area. We obtained the flood image with an Anger-type calculation. DOI layers and 9×9 pixels were well distinguished in the obtained images. Preclinical PET scanners based on this detector design offer the prospect of high and uniform spatial resolution.

机译：我们使用离散晶体阵列中与深度相关的反射器图案开发了相互作用深度（DOI）正电子发射断层扫描（PET）检测器。由于深度上不同的反射器图案，光的分布相对于深度发生了变化。作为初步实验，我们测量了DOI检测器模块的晶体识别性能。该晶体由2mm×2mm×20mm的oxy正氧化钇钇晶体（LYSO）晶体的9×9阵列组成。晶体阵列与阳极尺寸为2mm×2mm，有效面积为18.1mm×18.1mm的64通道位置敏感光电倍增管光学耦合。我们通过Anger型计算获得了洪水图像。在获得的图像中可以很好地区分DOI层和9×9像素。基于这种探测器设计的临床前PET扫描仪提供了高且均匀的空间分辨率的前景。

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《Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment》 |2017年第21期|1-4|共4页
作者
Seung-Jae Lee; Chaeyeong Lee; Jihoon Kang; Yong Hyun Chung;
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作者单位

Department of Radiological Science, Yonsei University, Wonju 26493, Republic of Korea;

Department of Radiological Science, Yonsei University, Wonju 26493, Republic of Korea;

Department of Biomedical Engineering, Chonnam National University, 50 Daehak-ro, Yeosu, Jeonnam 59626, Republic of Korea;

Department of Radiological Science, Yonsei University, Wonju 26493, Republic of Korea;

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正文语种 eng
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关键词
Depth of interaction; Reflector patterns; Light distribution; Single-ended readout;

机译：互动深度;反射器图案;配光单端读数;

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专利

1. Development of Single-Ended Readout DOI Detector With Quadrisected Crystals [J] . Yoshida Eiji, Obata Fujino, Kamada Kei, IEEE Transactions on Radiation and Plasma Medical Sciences . 2020,第5期

机译：具有四晶体的单端读数DOI检测器的开发
2. Design and simulation of a novel method for determining depth-of-interaction in a PET scintillation crystal array using a single-ended readout by a multi-anode PMT. [J] . Ito M, Lee JS, Park MJ, Physics in medicine and biology. . 2010,第13期

机译：使用多阳极PMT单端读数确定PET闪烁晶体阵列中相互作用深度的新方法的设计和仿真。
3. Prototype pre-clinical PET scanner with depth-of-interaction measurements using single-layer crystal array and single-ended readout [J] . Lee Min Sun, Kim Kyeong Yun, Ko Guen Bae, Physics in medicine and biology. . 2017,第10期

机译：原型预临床PET扫描仪，使用单层晶体阵列和单端读数进行近距离相互作用的测量
4. Evaluation of a sub-millimeter resolution PET detector with a 1.2 mm pitch TSV-MPPC array one-to-one coupled to LFS scintillator crystals and individual signal readout [C] . R. Ota, T. Omura, R. Yamada, IEEE Nuclear Science Symposium and Medical Imaging Conference . 2015

机译：亚毫米分辨率PET检测器的评估，该检测器具有与LFS闪烁体晶体一对一耦合的1.2 mm间距TSV-MPPC阵列，并具有独立的信号读出功能
5. An uncooled microcantilever-based infrared detector array with optical readout. [D] . Corbeil, James L. 2003

机译：具有光学读数的未冷却的基于微悬臂梁的红外探测器阵列。
6. DOI Determination by Rise Time Discrimination in Single-Ended Readout for TOF PET Imaging [O] . R.I. Wiener, S. Surti, J.S. Karp -1

机译：通过TOF PET成像单端读数中的上升时间判别确定DOI
7. An Array of One-Dimensional Porous Silicon Photonic Crystal Reflector Islands for a Far-Infrared Image Detector * [O] . 2008

机译：用于远红外图像探测器的一维多孔硅光子晶体反射器阵列*

A new DOI detector design using discrete crystal array with depth-dependent reflector patterns and single-ended readout

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