Hermetically Sealed Radiation Detector Module for Parallel Analysis
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Solution Overview
Problem
Conventional radiation detectors experience instrumental dead time due to prolonged measurement times in highly radioactive environments, leading to inaccurate energy and dose rate measurements or the need for prolonged exposure, which is undesirable.
Innovation Solution
A radiation detector module system that performs parallel spectroscopic and dose rate analysis using separate measurement channels with adjustable times, allowing for simultaneous and accurate measurements, and includes a metallic enclosure with a hermetically sealed radiation sensor to reduce dead time and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional radiation detectors use prolonged measurement times to improve statistical accuracy, then measurement precision is improved, but instrumental dead time increases and productivity decreases
Solution Approach 1:
The patent divides the measurement process into two independent parallel channels: a spectroscopy channel for energy measurement and a dose rate channel for counting rate measurement. Each channel operates with its own measurement time, allowing simultaneous measurements without interference. This segmentation resolves the contradiction by enabling statistical accuracy through multiple events in the dose rate channel while maintaining fast spectroscopy measurements in the spectroscopy channel.
Solution Approach 2:
The patent transitions from sequential single-channel measurement to parallel multi-channel measurement, adding a temporal dimension where measurements occur simultaneously rather than sequentially. The first analysis channel performs spectroscopy analysis with longer measurement time while the second analysis channel performs dose rate analysis with shorter measurement time, both operating concurrently to resolve the throughput-precision tradeoff.
2Measurement precision
If conventional radiation detectors ignore subsequent signals during pulse measurement, then measurement precision is maintained, but loss of information increases due to missed events
Solution Approach 1:
The patent segments the signal processing into two independent parallel analysis channels that simultaneously process different aspects of the radiation signals. The first channel focuses on spectroscopy analysis for energy measurement while the second channel performs dose rate analysis, both processing signals concurrently without ignoring subsequent events. This allows complete event processing while maintaining measurement precision.
3Reliability
If radiation detector modules are exposed to highly radioactive environments, then measurement capability is maintained, but reliability decreases due to instrumental dead time
Solution Approach 1:
The patent segments the detection system into two parallel channels with different measurement characteristics. The spectroscopy channel maintains reliability for energy measurement while the dose rate channel handles high count rates efficiently. This segmentation allows the system to operate reliably in highly radioactive environments by distributing the measurement burden across two independent processing paths.
Solution Approach 2:
The patent implements dynamic measurement time adjustment where the second measurement time for dose rate analysis can be optimized based on the radiation environment. This dynamic adaptation allows the system to maintain reliability by adjusting measurement parameters in real-time according to the radiation conditions, preventing instrumental dead time from compromising measurement accuracy.
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
Enables reliable and simultaneous spectroscopic and dose rate measurements in high radiation environments, reducing instrumental dead time and improving measurement accuracy and speed.
Implementation Method 1
a radiation sensor disposed within the enclosure; readout electronics configured to provide radiation detection event signals corresponding to incident ionizing radiation in the radiation sensor
Data Source
AI summary
Techniques are disclosed for systems and methods to provide a radiation detector module for a radiation detector. A radiation detector module includes a metallic and/or metalized enclosure, a radiation sensor disposed within the enclosure, readout electronics configured to provide radiation detection event signals corresponding to incident ionizing radiation in the radiation sensor, and a cap including an internal interface configured to couple to the readout electronics and an external interface configured to couple to a radiation detector, where the cap is configured to hermetically seal the radiation sensor within the enclosure. The cap may be implemented as an edge plated printed circuit board (PCB) including a slot configured to mate with a planar edge of an open surface of the enclosure, where the slot is soldered to the planar edge of the enclosure to hermetically seal the radiation sensor within the enclosure.