METHOD FOR REPRODUCING THE THERMAL AND MECHANICAL ACTION OF X-RAY RADIATION ON ELEMENTS OF RADIO-ELECTRONIC EQUIPMENT USING AN ELECTRON BEAM Russian patent published in 2023 - IPC G01N3/18 G01N25/58 G01N23/02 

FIELD: radio electronic equipment.

SUBSTANCE: invention relates to a technique for testing materials and elements of radio electronic equipment (REA) by reproducing thermomechanical loads by a high-intensity pulsed electron beam (PEB) and can be used to test samples of multilayer materials and elements of REA for resistance to X-ray radiation (XR). The method of reproducing the thermal and mechanical action of XR on REA elements with the help of PEB consists in identifying REA structural elements that are critical to thermal and mechanical effects (CE). The spatial distribution of the absorbed dose is calculated under the influence of XR and under the influence of PEB for each CE, the maximum values of tensile mechanical stresses and temperatures for each CE are determined, a calculation is made by the criterion of equality of the maximum tensile stresses, the values of the fluence of the energy of the PEB, equivalent to the values of the fluence of the energy of the XR with given parameters for each CE. A calculation is made of the values of the PEB energy fluence, which are equivalent to the values of the XR energy fluence in relation to the thermal effects for each CE. Mechanical and thermal fields in the CE are created with the help of the simulating effect of the PEB, equivalent to those arising under the influence of XR with given parameters according to the criteria of equality of the maximum values of tensile stresses and maximum temperature.

EFFECT: providing the ability to determine and predict the level of resistance of modern PEB products, taking into account thermal and thermomechanical effects when exposed to XR through the use of PEB.

1 cl, 3 dwg