Industry: Machinery & Equipment
Published Date: 2025-03-10
Pages: 79 Pages
Report ld: 4543187
Request Sample
Customized Report
The global market for Cold Field Emission Electron Gun was valued at US$ million in the year 2024 and is projected to reach a revised size of US$ million by 2031, growing at a CAGR of %during the forecast period.
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
The cold field emission electron gun has the characteristics of small electron source emission area, good electron beam focusing, low energy divergence, and high beam current density, which makes it have the advantages of high spatial resolution, high brightness and good monochromaticity. These technical advantages make the cold field emission electron gun have great development potential in the field of high-resolution instruments. The cold field emission electron gun is widely used in the fields of electron energy loss spectroscopy (EELS) for measuring the atomic structure and chemical properties of samples, scanning transmission electron microscope (STEM) with both scanning electron microscope and transmission electron microscope functions. Especially in cryo-transmission electron microscope, the cold field emission electron gun is the best choice because of its low cathode temperature. The cold field emission electron gun occupies an important position in the electron gun market due to its technical advantages and wide application fields.
MARKET SEGMENTATION
REPORT SCOPE
This report aims to provide a comprehensive presentation of the global market for Cold Field Emission Electron Gun, with both quantitative and qualitative analysis, to help readers develop business/growth strategies, assess the market competitive situation, analyze their position in the current marketplace, and make informed business decisions regarding Cold Field Emission Electron Gun.
The Cold Field Emission Electron Gun market size, estimations, and forecasts are provided in terms of output/shipments (Units) and revenue ($ millions), considering 2024 as the base year, with history and forecast data for the period from 2020 to 2031. This report segments the global Cold Field Emission Electron Gun market comprehensively. Regional market sizes, concerning products by Type, by Application, and by players, are also provided.
For a more in-depth understanding of the market, the report provides profiles of the competitive landscape, key competitors, and their respective market ranks. The report also discusses technological trends and new product developments.
The report will help the Cold Field Emission Electron Gun manufacturers, new entrants, and industry chain related companies in this market with information on the revenues, production, and average price for the overall market and the sub-segments across the different segments, by company, by Type, by Application, and by regions.
CHAPTER OUTLINE
Chapter 1: Introduces the report scope of the report, executive summary of different market segments (by region, by Type, by Application, etc), including the market size of each market segment, future development potential, and so on. It offers a high-level view of the current state of the market and its likely evolution in the short to mid-term, and long term.
Chapter 2: Detailed analysis of Cold Field Emission Electron Gun manufacturers competitive landscape, price, production and value market share, latest development plan, merger, and acquisition information, etc.
Chapter 3: Production/output, value of Cold Field Emission Electron Gun by region/country. It provides a quantitative analysis of the market size and development potential of each region in the next six years.
Chapter 4: Consumption of Cold Field Emission Electron Gun in regional level and country level. It provides a quantitative analysis of the market size and development potential of each region and its main countries and introduces the market development, future development prospects, market space, and production of each country in the world.
Chapter 5: Provides the analysis of various market segments by Type, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different market segments.
Chapter 6: Provides the analysis of various market segments by Application, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different downstream markets.
Chapter 7: Provides profiles of key players, introducing the basic situation of the main companies in the market in detail, including product production/output, value, price, gross margin, product introduction, recent development, etc.
Chapter 8: Analysis of industrial chain, including the upstream and downstream of the industry.
Chapter 9: Introduces the market dynamics, latest developments of the market, the driving factors and restrictive factors of the market, the challenges and risks faced by manufacturers in the industry, and the analysis of relevant policies in the industry.
Chapter 10: The main points and conclusions of the report.
QYRESEARCH'S STRENGTHS
Unlike generic global market reports, this study combines macro-level industry trends with hyper-local operational intelligence, empowering data-driven decisions across the Compound Chocolate value chain, addressing:
We identify regional market threats and growth prospects to guide your overseas layout.
We adjust product portfolios in line with local consumption habits.
We unpack rivals’ operation strategies for scattered and highly concentrated industries.
We cover competition landscape, full supply chain and quantified market size data, and deliver tailor-made customized surveys to meet your unique business demands.
We own self-owned massive exclusive databases, backed by 19 years of global market research experience across thousands of sectors.
Our team operates 24 hours a day, 365 days a year, enabling ultra-fast report turnaround to respond to your research needs efficiently.
We integrate regional risk assessment, localized product optimization and competitor analysis to deliver actionable market strategies.
All data is cross-verified from multiple industry sources to deliver thorough, precise analysis that supports reliable corporate strategic decisions.
We provide responsive, dedicated after-sales support to resolve all follow-up inquiries about reports, data and industry interpretation.
TABLE OF CONTENTS
1 Cold Field Emission Electron Gun Market Overview
1.1 Product Definition
1.2 Cold Field Emission Electron Gun by Type
1.2.1 Global Cold Field Emission Electron Gun Market Value Growth Rate Analysis by Type: 2024 VS 2031
1.2.2 Scanning Electron Microscope
1.2.3 Transmission Electron Microscope
1.3 Cold Field Emission Electron Gun by Application
1.3.1 Global Cold Field Emission Electron Gun Market Value Growth Rate Analysis by Application: 2024 VS 2031
1.3.2 Semiconductor
1.3.3 Material Science
1.3.4 Life Science
1.3.5 Other
1.4 Global Market Growth Prospects
1.4.1 Global Cold Field Emission Electron Gun Production Value Estimates and Forecasts (2020-2031)
1.4.2 Global Cold Field Emission Electron Gun Production Capacity Estimates and Forecasts (2020-2031)
1.4.3 Global Cold Field Emission Electron Gun Production Estimates and Forecasts (2020-2031)
1.4.4 Global Cold Field Emission Electron Gun Market Average Price Estimates and Forecasts (2020-2031)
1.5 Assumptions and Limitations
2 Market Competition by Manufacturers
2.1 Global Cold Field Emission Electron Gun Production Market Share by Manufacturers (2020-2025)
2.2 Global Cold Field Emission Electron Gun Production Value Market Share by Manufacturers (2020-2025)
2.3 Global Key Players of Cold Field Emission Electron Gun, Industry Ranking, 2023 VS 2024
2.4 Global Cold Field Emission Electron Gun Market Share by Company Type (Tier 1, Tier 2, and Tier 3)
2.5 Global Cold Field Emission Electron Gun Average Price by Manufacturers (2020-2025)
2.6 Global Key Manufacturers of Cold Field Emission Electron Gun, Manufacturing Base Distribution and Headquarters
2.7 Global Key Manufacturers of Cold Field Emission Electron Gun, Product Offered and Application
2.8 Global Key Manufacturers of Cold Field Emission Electron Gun, Date of Enter into This Industry
2.9 Cold Field Emission Electron Gun Market Competitive Situation and Trends
2.9.1 Cold Field Emission Electron Gun Market Concentration Rate
2.9.2 Global 5 and 10 Largest Cold Field Emission Electron Gun Players Market Share by Revenue
2.10 Mergers & Acquisitions, Expansion
3 Cold Field Emission Electron Gun Production by Region
3.1 Global Cold Field Emission Electron Gun Production Value Estimates and Forecasts by Region: 2020 VS 2024 VS 2031
3.2 Global Cold Field Emission Electron Gun Production Value by Region (2020-2031)
3.2.1 Global Cold Field Emission Electron Gun Production Value by Region (2020-2025)
3.2.2 Global Forecasted Production Value of Cold Field Emission Electron Gun by Region (2026-2031)
3.3 Global Cold Field Emission Electron Gun Production Estimates and Forecasts by Region: 2020 VS 2024 VS 2031
3.4 Global Cold Field Emission Electron Gun Production Volume by Region (2020-2031)
3.4.1 Global Cold Field Emission Electron Gun Production by Region (2020-2025)
3.4.2 Global Forecasted Production of Cold Field Emission Electron Gun by Region (2026-2031)
3.5 Global Cold Field Emission Electron Gun Market Price Analysis by Region (2020-2025)
3.6 Global Cold Field Emission Electron Gun Production and Value, Year-over-Year Growth
3.6.1 North America Cold Field Emission Electron Gun Production Value Estimates and Forecasts (2020-2031)
3.6.2 Europe Cold Field Emission Electron Gun Production Value Estimates and Forecasts (2020-2031)
3.6.3 China Cold Field Emission Electron Gun Production Value Estimates and Forecasts (2020-2031)
3.6.4 Japan Cold Field Emission Electron Gun Production Value Estimates and Forecasts (2020-2031)
4 Cold Field Emission Electron Gun Consumption by Region
4.1 Global Cold Field Emission Electron Gun Consumption Estimates and Forecasts by Region: 2020 VS 2024 VS 2031
4.2 Global Cold Field Emission Electron Gun Consumption by Region (2020-2031)
4.2.1 Global Cold Field Emission Electron Gun Consumption by Region (2020-2025)
4.2.2 Global Cold Field Emission Electron Gun Forecasted Consumption by Region (2026-2031)
4.3 North America
4.3.1 North America Cold Field Emission Electron Gun Consumption Growth Rate by Country: 2020 VS 2024 VS 2031
4.3.2 North America Cold Field Emission Electron Gun Consumption by Country (2020-2031)
4.3.3 U.S.
4.3.4 Canada
4.4 Europe
4.4.1 Europe Cold Field Emission Electron Gun Consumption Growth Rate by Country: 2020 VS 2024 VS 2031
4.4.2 Europe Cold Field Emission Electron Gun Consumption by Country (2020-2031)
4.4.3 Germany
4.4.4 France
4.4.5 U.K.
4.4.6 Italy
4.4.7 Netherlands
4.5 Asia Pacific
4.5.1 Asia Pacific Cold Field Emission Electron Gun Consumption Growth Rate by Region: 2020 VS 2024 VS 2031
4.5.2 Asia Pacific Cold Field Emission Electron Gun Consumption by Region (2020-2031)
4.5.3 China
4.5.4 Japan
4.5.5 South Korea
4.5.6 China Taiwan
4.5.7 Southeast Asia
4.5.8 India
4.6 Latin America, Middle East & Africa
4.6.1 Latin America, Middle East & Africa Cold Field Emission Electron Gun Consumption Growth Rate by Country: 2020 VS 2024 VS 2031
4.6.2 Latin America, Middle East & Africa Cold Field Emission Electron Gun Consumption by Country (2020-2031)
4.6.3 Mexico
4.6.4 Brazil
4.6.5 Turkey
4.6.6 GCC Countries
5 Segment by Type
5.1 Global Cold Field Emission Electron Gun Production by Type (2020-2031)
5.1.1 Global Cold Field Emission Electron Gun Production by Type (2020-2025)
5.1.2 Global Cold Field Emission Electron Gun Production by Type (2026-2031)
5.1.3 Global Cold Field Emission Electron Gun Production Market Share by Type (2020-2031)
5.2 Global Cold Field Emission Electron Gun Production Value by Type (2020-2031)
5.2.1 Global Cold Field Emission Electron Gun Production Value by Type (2020-2025)
5.2.2 Global Cold Field Emission Electron Gun Production Value by Type (2026-2031)
5.2.3 Global Cold Field Emission Electron Gun Production Value Market Share by Type (2020-2031)
5.3 Global Cold Field Emission Electron Gun Price by Type (2020-2031)
6 Segment by Application
6.1 Global Cold Field Emission Electron Gun Production by Application (2020-2031)
6.1.1 Global Cold Field Emission Electron Gun Production by Application (2020-2025)
6.1.2 Global Cold Field Emission Electron Gun Production by Application (2026-2031)
6.1.3 Global Cold Field Emission Electron Gun Production Market Share by Application (2020-2031)
6.2 Global Cold Field Emission Electron Gun Production Value by Application (2020-2031)
6.2.1 Global Cold Field Emission Electron Gun Production Value by Application (2020-2025)
6.2.2 Global Cold Field Emission Electron Gun Production Value by Application (2026-2031)
6.2.3 Global Cold Field Emission Electron Gun Production Value Market Share by Application (2020-2031)
6.3 Global Cold Field Emission Electron Gun Price by Application (2020-2031)
7 Key Companies Profiled
7.1 Hitachi
7.1.1 Hitachi Cold Field Emission Electron Gun Company Information
7.1.2 Hitachi Cold Field Emission Electron Gun Product Portfolio
7.1.3 Hitachi Cold Field Emission Electron Gun Production, Value, Price and Gross Margin (2020-2025)
7.1.4 Hitachi Main Business and Markets Served
7.1.5 Hitachi Recent Developments/Updates
7.2 Kimball Physics
7.2.1 Kimball Physics Cold Field Emission Electron Gun Company Information
7.2.2 Kimball Physics Cold Field Emission Electron Gun Product Portfolio
7.2.3 Kimball Physics Cold Field Emission Electron Gun Production, Value, Price and Gross Margin (2020-2025)
7.2.4 Kimball Physics Main Business and Markets Served
7.2.5 Kimball Physics Recent Developments/Updates
7.3 JEOL
7.3.1 JEOL Cold Field Emission Electron Gun Company Information
7.3.2 JEOL Cold Field Emission Electron Gun Product Portfolio
7.3.3 JEOL Cold Field Emission Electron Gun Production, Value, Price and Gross Margin (2020-2025)
7.3.4 JEOL Main Business and Markets Served
7.3.5 JEOL Recent Developments/Updates
7.4 FEI
7.4.1 FEI Cold Field Emission Electron Gun Company Information
7.4.2 FEI Cold Field Emission Electron Gun Product Portfolio
7.4.3 FEI Cold Field Emission Electron Gun Production, Value, Price and Gross Margin (2020-2025)
7.4.4 FEI Main Business and Markets Served
7.4.5 FEI Recent Developments/Updates
8 Industry Chain and Sales Channels Analysis
8.1 Cold Field Emission Electron Gun Industry Chain Analysis
8.2 Cold Field Emission Electron Gun Raw Material Supply Analysis
8.2.1 Key Raw Materials
8.2.2 Raw Materials Key Suppliers
8.3 Cold Field Emission Electron Gun Production Mode & Process Analysis
8.4 Cold Field Emission Electron Gun Sales and Marketing
8.4.1 Cold Field Emission Electron Gun Sales Channels
8.4.2 Cold Field Emission Electron Gun Distributors
8.5 Cold Field Emission Electron Gun Customer Analysis
9 Cold Field Emission Electron Gun Market Dynamics
9.1 Cold Field Emission Electron Gun Industry Trends
9.2 Cold Field Emission Electron Gun Market Drivers
9.3 Cold Field Emission Electron Gun Market Challenges
9.4 Cold Field Emission Electron Gun Market Restraints
10 Research Findings and Conclusion
11 Methodology and Data Source
11.1 Methodology/Research Approach
11.1.1 Research Programs/Design
11.1.2 Market Size Estimation
11.1.3 Market Breakdown and Data Triangulation
11.2 Data Source
11.2.1 Secondary Sources
11.2.2 Primary Sources
11.3 Author List
11.4 Disclaimer
TABLE OF FIGURES
List of Tables
List of Figures
KEY QUESTIONS ADDRESSED BY THE REPORT
Related Reports
The global Cold Field Emission Electron Gun market is projected to grow from US$ million in 2025 to US$ million by 2032, at a CAGR of %(2026-2032), driven by critical product segments and diverse end‑use applications, while evolving U.S. tariff policies introduce trade‑cost volatility and supply‑chain uncertainty.
Published Date: 2026-03-26
Pages: 128
USD 4900.00
(Single User License)
The global Cold Field Emission Electron Gun market size was US$ million in 2025 and is forecast to reach a readjusted size of US$ million by 2032 with a CAGR of %during the forecast period 2026-2032.
Published Date: 2026-03-26
Pages: 65
USD 4250.00
(Single User License)
The global market for Cold Field Emission Electron Gun was estimated to be worth US$ million in 2025 and is projected to reach US$ million, growing at a CAGR of %from 2026 to 2032.
Published Date: 2026-01-19
Pages: 81
USD 3950.00
(Single User License)
The global Cold Field Emission Electron Gun market was valued at US$ million in 2025 and is anticipated to reach US$ million by 2032, at a CAGR of %from 2026 to 2032.
Published Date: 2026-01-14
Pages: 120
USD 2900.00
(Single User License)
The global Cold Field Emission Electron Gun market is projected to grow from US$ million in 2024 to US$ million by 2031, at a CAGR of %(2025-2031), driven by critical product segments and diverse end‑use applications, while evolving U.S. tariff policies introduce trade‑cost volatility and supply‑chain uncertainty.
Published Date: 2025-08-05
Pages: 113
USD 4900.00
(Single User License)
The global Cold Field Emission Electron Gun market size was US$ million in 2024 and is forecast to a readjusted size of US$ million by 2031 with a CAGR of %during the forecast period 2025-2031.
Published Date: 2025-03-10
Pages: 67
USD 4250.00
(Single User License)
The global market for Cold Field Emission Electron Gun was estimated to be worth US$ million in 2024 and is forecast to a readjusted size of US$ million by 2031 with a CAGR of %during the forecast period 2025-2031.
Published Date: 2025-03-10
Pages: 82
USD 3950.00
(Single User License)
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published Date: 2024-06-15
Pages: 99
USD 4350.00
(Single User License)
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published Date: 2024-06-15
Pages: 112
USD 4900.00
(Single User License)
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published Date: 2024-06-15
Pages: 83
USD 2900.00
(Single User License)
The global Cold Field Emission Electron Gun market is projected to grow from US$ million in 2025 to US$ million by 2032, at a CAGR of %(2026-2032), driven by critical product segments and diverse end‑use applications, while evolving U.S. tariff policies introduce trade‑cost volatility and supply‑chain uncertainty.
Published: 2026-03-26
Pages: 128
The global Cold Field Emission Electron Gun market size was US$ million in 2025 and is forecast to reach a readjusted size of US$ million by 2032 with a CAGR of %during the forecast period 2026-2032.
Published: 2026-03-26
Pages: 65
The global market for Cold Field Emission Electron Gun was estimated to be worth US$ million in 2025 and is projected to reach US$ million, growing at a CAGR of %from 2026 to 2032.
Published: 2026-01-19
Pages: 81
The global Cold Field Emission Electron Gun market was valued at US$ million in 2025 and is anticipated to reach US$ million by 2032, at a CAGR of %from 2026 to 2032.
Published: 2026-01-14
Pages: 120
The global Cold Field Emission Electron Gun market is projected to grow from US$ million in 2024 to US$ million by 2031, at a CAGR of %(2025-2031), driven by critical product segments and diverse end‑use applications, while evolving U.S. tariff policies introduce trade‑cost volatility and supply‑chain uncertainty.
Published: 2025-08-05
Pages: 113
The global Cold Field Emission Electron Gun market size was US$ million in 2024 and is forecast to a readjusted size of US$ million by 2031 with a CAGR of %during the forecast period 2025-2031.
Published: 2025-03-10
Pages: 67
The global market for Cold Field Emission Electron Gun was estimated to be worth US$ million in 2024 and is forecast to a readjusted size of US$ million by 2031 with a CAGR of %during the forecast period 2025-2031.
Published: 2025-03-10
Pages: 82
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published: 2024-06-15
Pages: 99
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published: 2024-06-15
Pages: 112
The cold field emission electron gun (CFE) is an electron gun that uses specific materials to directly emit electrons through an electric field under low temperature conditions. It uses the field emission phenomenon generated by strengthening the electric field on the metal surface. Specifically, when a metal surface in a vacuum is subjected to a sufficiently strong electric field, electrons can directly "tunnel" through a narrow energy barrier and leave the cathode to form an electron beam. The cathode is usually made of a thin tungsten wire, and single-crystalline tungsten is welded on the tungsten wire. The tip curvature radius of the single-crystalline tungsten is about 100nm to provide a sharp emission surface. A metal extraction electrode is set opposite the emitter, and a positive voltage of thousands of volts is applied. Due to the tunneling effect, electrons are emitted from the emitter, and these electrons form an electron beam through the small holes on the extraction electrode. Cold field emission electron guns have been widely used in scanning electron microscopes (SEMs) and other instruments that require high-resolution imaging.
Published: 2024-06-15
Pages: 83
REPORT COVERAGE
DESCRIPTION
OVERVIEW
MARKET SEGMENTATION
REPORT SCOPE
CHAPTER OUTLINE
QYRESEARCH'S STRENGTHS
TABLE OF CONTENTS
TABLE OF FIGURES
RLEATED REPORTS
INTEREST IN THIS REPORT?
Get A Free Sample
Request For Quotation
OR
NEED A CUSTOMIZED REPORT?
Customized Report
Request Sample
Pre-Order Enquiry
Add to Cart
Buy Now