Spectrometer With Remote Crystal Analyzer and Detector Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing spectrometers require constant reorientation of the crystal analyzer and detector to analyze various elemental fluorescence lines, and this reorientation is challenging in environments like vacuum or inert-air gloveboxes.
Innovation Solution
A spectrometer with remotely oriented crystal analyzer and detector components, allowing precise reorientation and operation in environments such as vacuum or inert-air gloveboxes, using motors and arms to maintain the Rowland geometry while keeping the sample stationary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the crystal analyzer and detector are reoriented to analyze various elemental fluorescence lines, then the spectrometer can measure different energy regions, but the reorientation is challenging in vacuum or inert-air glovebox environments
Solution Approach 1:
The spectrometer employs motorized arms that enable dynamic reorientation of the crystal analyzer and detector while maintaining the Rowland geometry. The first arm rotates the crystal analyzer around a first axis, and the second arm rotates the detector around a second axis, allowing the system to adapt to different measurement requirements without manual intervention, thus resolving the contradiction between versatility and ease of operation in controlled environments.
2Adaptability or versatility
If the crystal analyzer and detector are moved to maintain Rowland geometry, then different Bragg angles and energy regions can be measured, but the sample position must remain fixed
Solution Approach 1:
The system divides the reorientation function into two independent segments: the first arm for rotating the crystal analyzer and the second arm for rotating the detector. This segmentation allows each component to be controlled independently while maintaining the Rowland geometry, enabling measurement of different energy regions without requiring the sample to move, thus managing the complexity through modular design.
3Adaptability or versatility
If remote orientation mechanisms are added to enable operation in vacuum or inert-air gloveboxes, then the spectrometer can operate in controlled environments, but the device complexity increases
Solution Approach 1:
The motorized arms act as intermediaries that enable remote orientation of the crystal analyzer and detector. These arms can be controlled from outside the vacuum or inert-air environment, allowing the spectrometer to operate in controlled environments without requiring direct manual manipulation inside the chamber. The first arm mediates the rotation of the crystal analyzer, and the second arm mediates the rotation of the detector, thus enabling environmentally controlled operation while managing complexity through automated control.
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 precise analysis of elemental fluorescence lines in various environments by maintaining the Rowland geometry without disturbing the environment, with high energy resolution and ability to measure X-ray spectra and absorption fine structures.
Implementation Method 1
When X-rays from the sample encounter the crystal analyzer at a specific angle, only those X-rays with wavelengths that satisfy Bragg's Law are diffracted
Implementation Method 2
Combined with a position-sensitive X-ray detector ('detector'), these refocused rays are measured by placing the detector on the circle, and, using the relationship between the refocused position and the energy, measured X-rays on the detector are assigned to particular energies
Data Source
Figure 1
Figure 2a~2c
Figure 3
AI summary
The invention described herein is a spectrometer having components allowing remote orientation of crystal analyzer and detector.