CMOS Radiation Detector Using Arrayed Correlation

使用阵列相关的 CMOS 辐射探测器

• 批准号: 25630139
• 负责人: OKADA Kenichi
• 金额: $ 1.41万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2013
• 资助国家: 日本
• 起止时间: 2013-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-25630139/
• 关键词: 放射線センサ; SPAD; 発振器

In this work, a radiation detector using a CMOS chip has been studied. PET as a plastic scintillator generates ultraviolet light, and the light is detected by single-photon avalanche diode (SPAD) implemented on a CMOS chip. A bias voltage generation is very important to improve SPAD sensitivity. A SPAD array is self-calibrated for excluding defect-elements and having high bias voltage. A clock generation is also required to measure a dark count, and it is used for the calibration. A low-power and accurate on-chip clock generator is realized by using only standard cells.

本文研究了一种基于CMOS芯片的辐射探测器。PET作为一种塑料闪烁体产生紫外光，该光由CMOS芯片上的单光子雪崩二极管（SPAD）检测。偏置电压的产生对提高SPAD的灵敏度非常重要。SPAD阵列具有排除缺陷元件和高偏置电压的自校准特性。时钟发生器也需要测量暗计数，并用于校准。采用标准单元实现了低功耗、高精度的片上时钟发生器。

项目成果

電圧制御発振器におけるバラクタバイアス抵抗の最適化

压控振荡器中变容二极管偏置电阻的优化

• 发表时间: 2014
• 作者: 桂木真希彦;木村健将;岡田健一;松澤昭
• 通讯作者: 松澤昭

A 0.4ps/bit Digitally-controlled Varactor for a Fully Synthesizable DCO

用于全合成 DCO 的 0.4ps/bit 数字控制变容二极管

• 发表时间: 2014
• 作者: Dongsheng Yang;Wei Deng;Teerachot Siriburanon,岡田健一;松澤昭
• 通讯作者: 松澤昭