X-ray Analysis Cell for Simultaneous Diffraction and Absorption
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Solution Overview
Problem
Current X-ray analysis technologies cannot simultaneously measure X-ray diffraction and X-ray absorption fine structure at ultra-high temperatures in the same field of view due to incompatible optical systems and challenges with thermal insulation and window placement.
Innovation Solution
A cell for X-ray analysis with a furnace, multiple windows, and a holder that allows for simultaneous X-ray diffraction and X-ray absorption fine structure measurements, enabling ultra-high temperature heating and cooling while maintaining a gas atmosphere, with focused heaters and a rotatable stage for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate measurement methods are used for X-ray diffraction and X-ray absorption fine structure, then measurement compatibility is improved, but measurement precision at the same micro area deteriorates
Solution Approach 1:
The patent combines two separate measurement systems (XRD and XAFS) into a single integrated cell structure. The furnace contains multiple windows (first window for incident X-rays, second window for diffracted X-rays, third window for transmission X-rays) that allow both diffraction and absorption measurements to occur simultaneously on the same sample at the same location, eliminating the need for separate measurements and enabling precise micro-area analysis.
2Temperature
If ultra-high temperature heating is implemented, then temperature capability is improved, but thermal insulation and window placement become more difficult
Solution Approach 1:
The furnace is divided into distinct functional zones with separate windows positioned at specific locations. The first window allows incident X-rays to enter, the second window allows diffracted X-rays to exit, and the third window allows transmission X-rays to pass through. This segmentation allows each window to be optimized for its specific function while managing thermal loads independently, making ultra-high temperature operation feasible.
Solution Approach 2:
The patent introduces a holder structure that positions the sample in a specific location within the furnace, serving as an intermediary between the heating system and the measurement system. The holder enables precise sample positioning while allowing X-rays to access the sample through multiple window paths, facilitating both diffraction and absorption measurements at ultra-high temperatures.
3Adaptability or versatility
If multiple windows are added to the furnace, then measurement functionality is improved, but structural complexity increases
Solution Approach 1:
The furnace structure is designed with multi-functionality, serving both as a heating chamber for ultra-high temperature operation and as a measurement chamber for both XRD and XAFS measurements. The integrated design with multiple windows allows the same furnace structure to support diverse measurement techniques simultaneously, reducing the need for separate specialized equipment.
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 simultaneous measurement of X-ray diffraction and X-ray absorption fine structure at temperatures up to 1500°C or higher, allowing for precise evaluation of micro-area changes without interference between measurement types.
Implementation Method 1
a furnace including a space where the sample is held and a focused heater heating the sample
Implementation Method 2
a furnace including a space where the sample is held and a focused heater heating the sample
Implementation Method 3
a first window provided to the furnace and allowing passage of incident X-rays directed at the sample
Implementation Method 4
a second window provided to the furnace and allowing passage of exiting X-rays emerging from the sample
Implementation Method 5
a third window provided to the furnace; the cell enabling simultaneous measurements of the X-ray diffraction of the sample, at outside of the second window and the X-ray absorption fine structure of the sample, through the third window
Implementation Method 6
X-ray diffraction is a technique in which a substance is irradiated with X-rays to obtain and analyze its diffraction pattern
Implementation Method 7
X-ray absorption fine structure measurement is a technique in which a substance is irradiated with X-rays to obtain information including electronic state of the atom absorbing X-rays and its peripheral structure based on the transmittance
Implementation Method 8
the furnace includes a flow path where a fluid for cooling the furnace flows
Implementation Method 9
a gas injection portion in communication with the space, for filling the space with gas or letting the gas to flow in the space
Data Source
AI summary
Provided are a cell for X-ray analysis and an X-ray analysis apparatus that enable simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a material (sample) in the same field of view on the sample (same position on the sample). The cell for X-ray analysis of the present invention enables simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a sample in the same field of view on the sample and includes a furnace including a space where the sample is held and a focused heater heating the sample, a first window provided to the furnace and through which X-rays directed at the sample is incident, a second window provided to the furnace and from which X-rays emerging from the sample exit, a third window provided to the furnace, and a holder that positions the sample in the space. The cell for X-ray analysis makes it possible to simultaneously measure X-ray diffraction of the sample at outside of the second window and X-ray absorption fine structure of the sample through the third window.