Friction Driven X-Ray Source Using Triboelectric Discharge
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Solution Overview
Problem
Existing methods for generating high-energy radiation, such as X-rays, require significant power and are difficult to scale for commercial use outside laboratory settings, especially when trying to achieve sufficient intensity using mechanical contacts in a controlled environment.
Innovation Solution
A device utilizing sliding frictional contact between dissimilar materials in a low-pressure environment, with one surface being an electrical insulator and the other a metallic electron target, to induce tribocharging and electrical discharge, generating high-energy radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If high voltage power supply is used to accelerate electrons into a material to generate X-rays, then X-ray generation is achieved, but significant power is consumed
Solution Approach 1:
The patent replaces the traditional high-voltage electrical acceleration system with a mechanical friction-based system. Two dissimilar materials are brought into sliding contact to generate triboelectric charges, which are then discharged to accelerate electrons toward a target, producing X-rays without requiring high-voltage power supplies
Solution Approach 2:
The invention changes the fundamental mechanism from electrical field acceleration to mechanical friction-based charge generation. By controlling the sliding contact parameters (materials, pressure, velocity) of two dissimilar materials, the system generates sufficient triboelectric charge to accelerate electrons and produce X-rays at lower power consumption
2Productivity
If mechanical contact methods are used to generate X-rays in a controlled environment, then X-ray generation is achieved, but sufficient intensity for commercial use is difficult to obtain
Solution Approach 1:
The patent employs dissimilar materials with complementary properties for the friction contact surfaces. One material is selected for its ability to generate positive triboelectric charge while the other generates negative charge, optimizing the charge generation efficiency and resulting X-ray intensity for commercial applications
Solution Approach 2:
The system uses repetitive sliding contact between the two materials to continuously generate triboelectric charges. This periodic mechanical action maintains a steady stream of accelerated electrons toward the target, producing consistent X-ray intensity suitable for commercial use
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method efficiently produces high-energy radiation with reduced power consumption and allows for commercial-scale generation of X-rays, overcoming the limitations of traditional high-voltage electron acceleration methods.
Implementation Method 1
sliding frictional contact between two surfaces, in proximity to an electron target, in a housing providing a low pressure environment, with the two surfaces of such dissimilar material so as to provide for tribocharging
Implementation Method 2
the sliding frictional contact on at least part of one of the surfaces at most intermittent over time so as to allow for electrical discharge
Implementation Method 3
X-rays are generally generated by electron braking (bremmstrahlung) or inner shell electron emission within a material
Data Source
AI summary
A high energy radiation generator utilizes sliding friction in a low pressure environment to generate high energy radiation, for example x-rays. The sliding friction may be generated by sweeping one material against a second material, for example rotating a surface of a rotor against a membrane, in the presence of an electron target, which may be one of the first material or the second material, or a different material.