New Real-Time Fluence Correction Method with SRAM Dosimeter for High Accuracy Single-Event Upset Evaluation

For the first time, we propose a single event effect (SEE) Equipment System with a reference SRAM dosimeter, and provide the empirical correlation equations, real-time effective fluence (RTEF), with software for analysis. QRT SEE Equipment System can make and provide the radiation-beam-fluence infor...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2023-05, Vol.70 (5), p.1-1
Main Authors: Yoon, Raehwan, Bae, Dongwoo, Kim, Kiseog, Chung, Sung S., Kih, Joongsik, Lee, Hyeokjae, Woo, Seungjoo, Cho, Changhee, Yoo, Jonghoon, Wender, Stephen A., Kim, Youngboo
Format: Article
Language:English
Subjects:
Correlation
Correlation coefficients
dosimeter
Dosimeters
Empirical equations
Error analysis
Fluence
Irradiation
Measurement uncertainty
Neutrons
Radiation
radiation sensitivity
Radiation tests
Random access memory
Real time
real-time effective fluence (RTEF)
Real-time systems
Regression analysis
Reliability analysis
Semiconductor device measurement
Sensitivity
single event effect (SEE)
Single Event Effects
Single event upsets
soft error
Soft errors
Software reliability
Static random access memory
static random access memory (SRAM)
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Summary:For the first time, we propose a single event effect (SEE) Equipment System with a reference SRAM dosimeter, and provide the empirical correlation equations, real-time effective fluence (RTEF), with software for analysis. QRT SEE Equipment System can make and provide the radiation-beam-fluence information based on soft error count. We clarified that measurement results of soft error count with SRAM dosimeter shows high correlation factor of 0.965 with neutron fluence of LANSCE. According to the correlation equation verified at LANSCE, we extrapolated regression analysis of radiation test data to different radiation facilities without beam profile information for real time beam analysis. When using a SRAM dosimeter for detecting beam profile characteristic, exact data can be obtained if radiation sensitivity of SRAM is measured and compensated. From this perspective, we distinguished SRAM's radiation sensitivity from beam profile using step-wise scan test sequence, and accurate fluence which only contains profile of beam itself could be obtained. On dosimeter, we uniformly arranged 41 SRAMs, which can cover entire beam size of LANSCE ICE-II, 76.2 mm, and derive more accurate correlation equation.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2023.3243555