Capillary Electron Microscope Specimen Holder for Gas Liquid Observation
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Solution Overview
Problem
Conventional electron microscopes face complications in creating and maintaining gas or liquid environments within capillaries for specimen observation, leading to leakage issues and complex assembly processes, and lack the capability to observe reactions under high resolution with heating or voltage application.
Innovation Solution
An electron microscope with a specimen holder featuring a capillary structure that allows for the transmission of electron beams, equipped with a supply and collection system for gases or liquids, enabling high-resolution imaging of specimens in controlled environments with heating and voltage application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cell parts are adhered or sealing is performed with gasket to prevent gas and liquid leakage, then sealing reliability is improved, but assembly complexity increases
Solution Approach 1:
The capillary structure is nested within the specimen holder, creating a hierarchical arrangement where the capillary (containing gas/liquid) is positioned inside the holder body. This nesting eliminates the need for separate sealing components between the capillary and holder, as the capillary fits into a dedicated receptacle space, thereby maintaining sealing reliability while simplifying assembly.
2Reliability
If conventional sealing methods are used with gaskets, then gas and liquid leakage is prevented, but assembly process becomes complicated
Solution Approach 1:
The sealing function is extracted from the assembly process and integrated into the capillary structure itself. The capillary's inherent design (with its fitted receptacle) provides the sealing capability, eliminating the need to separately install gaskets or perform adhesive bonding operations during assembly.
3Adaptability or versatility
If capillary structure with supply and collection devices is used, then gas/liquid environment control is improved, but device complexity increases
Solution Approach 1:
The capillary structure serves multiple functions simultaneously: it contains the gas or liquid environment, provides a sealed receptacle for the specimen, and incorporates supply and collection devices for fluid management. This multi-functionality achieves superior environment control capability while avoiding the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity.
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
Facilitates easy and safe preparation of gas or liquid environments for electron microscopes, allowing for high-resolution observation of specimen reactions within minute gas, liquid, or mixed spaces, while preventing leakage and simplifying assembly.
Implementation Method 1
an electron source for discharging primary electron beams; electron beam control means for condensing the primary electron beams discharged from the electron source and irradiating a specimen with the primary electron beams
Implementation Method 2
a detector for detecting an electron generated from the specimen
Data Source
AI summary
An object of the invention is to provide an electron microscope which can easily and safely prepare a gas or liquid environment in the electron microscope and can observe a specimen in the environment and a reaction of the specimen at a high resolution and to provide a specimen holder for the electron microscope. In the electron microscope including specimen holding means (6) for holding a specimen (23), the specimen (23) is placed in a capillary (17) through which electron beams are transmittable, the electron microscope includes a supply device for supplying gas or liquid into the capillary (17) and a collection device for collecting the gas or the liquid, and the electron microscope obtains a specimen image of the specimen while flowing the gas or the liquid.