Single-event effect detection device and method

Abstract

The invention provides a single-event effect detection device, which comprises a light-coupler sensor working unit, an SET amplitude discriminator unit and an SET counting unit, wherein the light-coupler sensor working unit is used for acquiring an SET signal from a radiation environment to be detected; the SET amplitude discriminator unit is used for comparing the SET signal amplitude obtained by the light-coupler sensor working unit with a threshold voltage to discriminate the amplitude ranges of different SET signals; and the SET counting unit is used for counting the number of the SET signals in each amplitude range. The device may also comprise a data mapping unit. The device and the method can realize the measurement of the values of several or tens of MeV.cm<2> / mg LETs and the measurement of the radiation environment of lower magnitudes and quantitatively measure the LET value for characterizing the single event effect of a specific micro electronic element, has a wider LET value quantitative measurement range. In addition, the used sensor has a small volume and small mass; the circuit structure is simple; and the lightening, miniaturization and low power consumption of the detection device can be realized easily.

Description

technical field [0001] The invention relates to the field of space radiation effect detection, in particular, the invention relates to a single event effect detection device and method. Background technique [0002] The space environment is an important factor that endangers the safety and reliability of spacecraft. The space radiation effect is a prominent environmental effect that induces spacecraft anomalies or failures. Radiation environments such as high-energy charged particles in space, magnetospheric substorm injection, and auroral subsidence plasma are likely to induce a series of radiation effects such as total dose effect, single event effect, surface and deep charging effect, among which single event effect is the one that induces spacecraft anomalies Or one of the most malfunctioning radiation effects. On the basis of in-depth research on the single event effect and protection technology of digital integrated circuits, the international aerospace community has...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the reliability of space applications, the effective thickness of the semiconductor detectors that can be used is relatively thick, usually about 400 μm, which is the same as the thickness of the current microelectronic devices that are sensitive to single event effects, which is on the order of microns or ten microns. far from

Due to the large effective detection thickness, the LET value of this technology for inducing the single event effect of modern technology devices is several MeV.cm 2 The measurement of heavy ions per mg is inaccurate or even impossible, which is especially unfavorable for measuring the complex particle environment that can induce single event effects in the accessories of key components on the star

For detecting the proton single-event effect of VHLET events formed by secondary heavy ions generated by nuclear reactions, it is effective to detect the distribution of VHLET spectra measured by extremely thick detectors and the actual VHLET spectra occurring in extremely small microelectronic devices Therefore, it is difficult to correctly infer the degree of proton single event effect actually occurring in microelectronic devices by using this detection result

[0010] On the other hand, this semiconductor detector-based detection technology uses the traditional particle energy measurement technology, which requires a relatively large mass, volume, and power consumption of the detector.

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