Monitoring of particle count rate and LET variations with pulse stretching inverters
- This study investigates the use of pulse stretching (skew-sized) inverters for monitoring the variation of count rate and linear energy transfer (LET) of energetic particles. The basic particle detector is a cascade of two pulse stretching inverters, and the required sensing area is obtained by connecting up to 12 two-inverter cells in parallel and employing the required number of parallel arrays. The incident particles are detected as single-event transients (SETs), whereby the SET count rate denotes the particle count rate, while the SET pulsewidth distribution depicts the LET variations. The advantage of the proposed solution is the possibility to sense the LET variations using fully digital processing logic. SPICE simulations conducted on IHP's 130-nm CMOS technology have shown that the SET pulsewidth varies by approximately 550 ps over the LET range from 1 to 100 MeV center dot cm(2) center dot mg(-1). The proposed detector is intended for triggering the fault-tolerant mechanisms within a self-adaptive multiprocessing systemThis study investigates the use of pulse stretching (skew-sized) inverters for monitoring the variation of count rate and linear energy transfer (LET) of energetic particles. The basic particle detector is a cascade of two pulse stretching inverters, and the required sensing area is obtained by connecting up to 12 two-inverter cells in parallel and employing the required number of parallel arrays. The incident particles are detected as single-event transients (SETs), whereby the SET count rate denotes the particle count rate, while the SET pulsewidth distribution depicts the LET variations. The advantage of the proposed solution is the possibility to sense the LET variations using fully digital processing logic. SPICE simulations conducted on IHP's 130-nm CMOS technology have shown that the SET pulsewidth varies by approximately 550 ps over the LET range from 1 to 100 MeV center dot cm(2) center dot mg(-1). The proposed detector is intended for triggering the fault-tolerant mechanisms within a self-adaptive multiprocessing system employed in space. It can be implemented as a standalone detector or integrated in the same chip with the target system.…
Author details: | Marko AndjelkovićORCiDGND, Junchao ChenORCiDGND, Aleksandar SimevskiORCiD, Oliver SchrapeORCiDGND, Miloš KrstićORCiDGND, Rolf KraemerORCiD |
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DOI: | https://doi.org/10.1109/TNS.2021.3076400 |
ISSN: | 0018-9499 |
ISSN: | 1558-1578 |
Title of parent work (English): | IEEE transactions on nuclear science : a publication of the IEEE Nuclear and Plasma Sciences Society |
Publisher: | Institute of Electrical and Electronics Engineers |
Place of publishing: | New York, NY |
Publication type: | Article |
Language: | English |
Date of first publication: | 2021/08/15 |
Publication year: | 2021 |
Release date: | 2024/04/25 |
Tag: | (SET) count rate; Particle detector; SET pulsewidth distribution; pulse stretching inverters; single-event transient |
Volume: | 68 |
Issue: | 8 |
Number of pages: | 10 |
First page: | 1772 |
Last Page: | 1781 |
Funding institution: | German Research Foundation, Deutsche Forschungsgemeinschaft (DFG) through the Project REDOXGerman Research Foundation (DFG) [KR 3576/29-2] |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Informatik und Computational Science |
DDC classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Peer review: | Referiert |