Laser Radiation Detection via Edge-Sensor Scattering
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Solution Overview
Problem
Current protective wall systems for high-intensity laser radiation are inadequate in ensuring timely protection due to contamination and the need for numerous sensors, and existing active systems are costly and complex to implement.
Innovation Solution
A protective device with a disc-shaped, semi-transparent first element integrated into the protective device, where the element is designed with a radiation-absorbing or reflective second material on the beam impingement side, and a sensor is positioned to detect scattered radiation via nanoparticles, allowing for rapid shutdown of the laser source without requiring a large number of sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If passive protective walls are used to shield laser radiation, then protection is provided, but the surfaces become contaminated with oil, dirt and dust causing the original protective properties to be lost
Solution Approach 1:
The protective system uses the laser radiation itself to activate the detection mechanism. When radiation contaminates or damages the first element, the scattered radiation automatically triggers the sensor to switch off the laser source, making the system self-monitoring without requiring additional active components on the wall surfaces.
Solution Approach 2:
The patent replaces passive mechanical protective walls with an active optical detection system. Instead of relying on material properties that degrade over time, the system uses radiation-guiding properties of the first element combined with sensors to detect hazardous radiation and trigger shutdown, substituting physical barrier reliance with optical field detection.
2Reliability
If active detection systems are implemented to monitor laser radiation, then timely protection is achieved, but the system becomes complex and costly requiring numerous sensors
Solution Approach 1:
The patent transitions from monitoring the three-dimensional space between walls to monitoring the two-dimensional surface of the first element itself. By placing sensors at the peripheral edges to detect scattered radiation from the first element's surface, the system reduces the monitoring problem from volumetric to surface-level, requiring fewer sensor positions.
Solution Approach 2:
The first element serves multiple functions: it acts as both the protective wall closing the opening and the radiation-guiding element for detection. This dual functionality eliminates the need for separate detection walls or additional complex sensor arrangements, as the same structural element enables both protection and monitoring.
3Reliability
If the protective wall system uses a large number of sensors to monitor all surfaces, then complete coverage is achieved, but the device complexity and cost increase significantly
Solution Approach 1:
The patent extracts the detection function from the bulk space monitoring and concentrates it at the peripheral edges of the first element. By placing sensors only at the edges to detect scattered radiation from the element surface, the system achieves effective monitoring without requiring sensors distributed throughout the entire protective space.
Solution Approach 2:
Instead of providing complete 360-degree monitoring of all wall surfaces, the system uses partial monitoring at the critical peripheral edges of the first element. This partial action is sufficient because scattered radiation from hazardous beam impact will reach the edge sensors, providing adequate detection without exhaustive coverage.
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 solution enables reliable monitoring of both the first element and the space between walls, ensuring quick and effective protection from hazardous laser radiation by using a minimal number of sensors and maintaining optical protection for observers.
Implementation Method 1
which conducts hazardous radiation which has struck it, in particular by scattering and/or total reflection, to a sensor
Implementation Method 2
which conducts hazardous radiation which has struck it, in particular by scattering and/or total reflection, to a sensor
Implementation Method 3
The third material or the filter must absorb the radiation to such an extent
Implementation Method 4
or alternatively reflected by the third material or the filter
Data Source
Figure 1
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AI summary
The invention relates to an assembly and method for detecting laser radiation which hits a disc (20, 28) sealing an opening (16, 18) of an enclosure, wherein at least one sensor (22) detecting the radiation is aligned having the radiation sensitive region (24) thereof on a circumferential edge section (26) of the disc, which is designed to be radiation-conducting. In order to enable secure monitoring both of the disc and of the enclosure, without a plurality of sensors being required, according to the invention, the enclosure has two walls (12, 14) spaced apart from each other and having openings (16, 18) which are sealed by the disc (20), the disc (20, 28) is arranged between the walls at the edge and the sensor (22) is arranged having the sensitive region (24) thereof between the walls, spaced apart from the disc or within an opening of the disc.