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Research on Radiation Tolerant LSIs for High-Intensity Accelerator Experiments

高强度加速器实验用耐辐射LSI研究

基本信息

批准号：
13640310
负责人：
ARAI Yasuo
金额：
$ 2.05万
依托单位：
The High Energy Accelerator Research Organization
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640310/
关键词：
Radiation Tolerance Integrated Circuit Time Measurement Single Event Effect LSI TDC

项目摘要

High radiation levels in future high-energy physics experiments such as in LHC or J-PARC accelerators are one of key issues, and this is also true in space science. On the other hand, LSI technology is a mandatory in these experiments for dealing with large number of readout channels and local processing. Unfortunately commercial LSIs are not always radiation tolerant, so we need to study the radiation effects of the LSI.In this research program, we study radiation effects to the LSIs, andaimed to search methods to improve radiation tolerance without using special silicon process which is far expensive to use in scientific purpose.We have measured radiation tolerance of AMT (Atlas Muon TDC) chip which we developed for muon detector of ATLAS experiment. We have done radiation test with gamma-rays from Co^<60> and proton beam from cyclotron. The AMT chip was fabricated in CMOS 0.3um process, and has time resolution of around 300 ps and can measure timing of input pulses without deadtime.We certified the radiation tolerance of the AMT under LHC condition, and the chip are being installed into giant ATLAS detector. with this achievements, the AMT chip is also a candidate for use in a scientific instruments in BepiColumbo Mercury observation mission which will be launched in 2012 from ESA (European Space Agent).

在未来的高能物理实验中，如在大型强子对撞机或J-PARC加速器中，高辐射水平是关键问题之一，在空间科学中也是如此。另一方面，为了处理大量的读出通道和本地处理，在这些实验中，LSI技术是必不可少的。不幸的是，商用LSI并不总是耐辐射的，因此我们需要研究LSI的辐射效应。在本研究项目中，我们研究了辐射对lsi的影响，旨在寻找在不使用特殊硅工艺的情况下提高辐射耐受性的方法，这种特殊硅工艺在科学研究中是非常昂贵的。对研制的Atlas μ子探测器用AMT （Atlas μ on TDC）芯片的辐射容限进行了测量。我们用Co^<60>的伽马射线和回旋加速器的质子束进行了辐射测试。AMT芯片采用CMOS 0.3um工艺制造，时间分辨率约为300ps，可以测量输入脉冲的时序，无死区。我们对AMT在大型强子对撞机条件下的辐射容限进行了验证，芯片正在安装到大型ATLAS探测器上。有了这一成就，AMT芯片也成为将于2012年由ESA（欧洲航天局）发射的BepiColumbo水星观测任务的科学仪器的候选者。