| General_Hydrogen Develops technologies and invests in companies for hydrogen infrastructure. |
| H2Gen_Innovations_Inc_ Dedicated to developing, manufacturing and bringing to market low-cost, small-scale hydrogen generators for industrial applications and for the emerging fuel cell vehicle and distributed fuel cell pow |
| H2scan Offers solid-state sensors and process monitors able to quantify hydrogen without cross-sensitivities to other substances. |
| Hydro-gen Offers skid-mounted catalytic steam reforming units for converting hydrocarbons to hydrogen, especially for use in fuel cells. Located in Italy. |
| The_Hydrogen_&_Fuel_Cell_Investor Hydrogen, fuel cells, and investing in an emerging technology. Links to the information available on the Internet. |
| The_Hydrogen_Company Offers a range of hydrogen-related product lines, including fuel cells, catalysts, electrolyzers, portable power units, gas detection systems, and educational materials. |
| Hydrogen_Power_Inc_ Developing hydrogen supply systems based on reacting water with aluminum to form aluminum oxide. |
| Hydrogen_Technology_Applications,_Inc_ Company commercializing novel water electrolysis technology, claimed to be more energy-efficient than traditional electrolysis. Currently marketing a hydrogen gas generator welder. |
| HyRadix Develops fuel processing technology for producing hydrogen for fuel cells and industrial applications, aimed at residential and small industrial markets. |
| Millennium_Cell,_Inc_ Develops technology for separating hydrogen out of raw materials, and producing hydrogen that can be used to generate electricity and power vehicles. |
| MRT Developer of a fluidized-bed membrane reactor process to produce pure hydrogen from natural gas in a single step. Overview of technology, industrial and fuel-cell applications, and company profile. |
| Norsk_Hydro_Electrolysers Manufacture of alkaline electrolysis hydrogen generators, based in Norway. |
| PowerNova_Technologies_Corporation Develops and commercializes hydrogen production technology for fuel cells. |
| Proton_Energy_Systems_Inc_ Manufacturer of proton exchange membrane (PEM) electrolyzers and fuel cell products. |
| Quantiam_Technologies_Inc_ Focused on the development and commercialization of new products for the hydrogen economy as well as extreme materials applications in the aerospace, automotive and chemical process industries. |
| REB_Research_&_Consulting Sells membrane hydrogen purifiers, hydrogen getters, and membrane reactors to produce hydrogen from ammonia, methanol, or hydrocarbons, and offers consulting services in these areas. |
| Safe_Hydrogen Developing a pumpable magnesium hydride slurry for merchant hydrogen and fuel cell applications. Company profile and technology overview. |
| siGEN Fuel cell systems integrator in Scotland, offering a range of fuel cell and electrolysis products to industry and the general public. Provides online shopping. |
| Teledyne_Energy_Systems Specializing in electrolyzers for generation of hydrogen fuel cells, fuel cell test stations, and thermo-electric power systems for space and terrestrial applications. |
| Tianjin_Highland_Energy_Technology_Development_Co_ Company in China developing metal hydride-based hydrogen storage and supply systems. Offers tanks with capacities up to 6000 normal liters, as well as fuel gauges. |
| AP_Adsend Features digital ad delivery from The Associated Press. Used by advertisers and agencies to deliver and manage their creative to thousands of publications and printers worldwide. |
| Cannes_Lions The official website of the international advertising festival. Presents archives, showcase, gallery and a directory related to the advertising world. |
| Certified_Folder_Display_Service,_Inc_ Professional brochure distribution and display service. Maintains a network of visitor information display racks and kiosks throughout the United States. |
| The_Clio_Awards Annual awards honoring creative advertising in package design, print, radio and television. Includes past award archive. |
| Golden_Award_of_Montreux Annual advertising festival held in Switzerland. Includes event information and presentation of winners. |
| A_I_S_E_ Represents the soap, detergents and maintenance products industry for consumers and professional users with international and European official and professional bodies. |
| Alberta_Petro-Chemical_Safety_Council_(Northern) Industry association in Canada aims to share information about and resolve occupational health and safety issues. Includes news, events, and training materials. |
| Alliance_for_the_Polyurethanes_Industry Information regarding recyling, environmental regulation, stewardship and other aspects of the polyurethane industry. |
| American_Chemical_Society A resource for chemistry and chemical applications, including databases, publications, career information and educational resources. |
| American_Chemistry_Council Represents the American chemical industry. Information about the Responsible Care initiative, news articles, press releases, research and testing, and public health. |
| American_Solvents_Council Trade association promotes the benefits and safe use of solvents in manufacturing. Information provided for product uses, handling, regulation and disposal. |
| Association_of_Chemical_Industry_of_Texas ACIT represents the chemical industry in Texas. Environmental, educational, economic, and safety information as well as information regarding meetings and related sites. |
| Association_of_the_Dutch_Chemical_Industry Represents the chemical industry in the Netherlands. Press releases, an annual report, a profile of the Dutch chemical industry, and information about Responsible Care initiatives. |
| Australasian_Institute_of_Dangerous_Goods_Consultants The AIDGC (Australasian Institute of Dangerous Goods Consultants)provide advice on storage and handling of all hazardous materials classes, and services including WorkCover License plan stamping. |
| Baltimore_Chemical_Association BCA promotes the chemical industry in Baltimore, MD and offers scholarships to study chemistry or chemical engineering in the state of Maryland. News, information about events, and scholarship informa |
| Canadian_Chemical_Producers\'_Association Represents the majority of Canadian chemical manufacturers. Includes member directory, policy initiatives, and national industry overviews. |
| Canadian_Urethane_Manufacturers_Association Association of processors and suppliers of castable polyurethane materials in Canada. |
| Chemical_and_Allied_Industries\'_Association CAIA launched Responsible Care in South Africa to respond to public concerns about the manufacture, storage, transport, use, and disposal of chemicals. |
| Chemical_Industries_Association The Chemical Industies Association (CIA) is the UK chemical industry's leading trade and employer's association. |
| The_Chemical_Industry_Vision_2020_Technology_Partnership_ Focuses on the technology needs in new chemical science and engineering. Including supply chain management, information systems, manufacturing and operations. Association goal is to maintain U.S. lead |
Reuterweg 65
•
D-60323 Frankfurt/M • Tel
+49 (0)69-720040 • Fax
+49 (0)69-720400 •
info@tectra.de
Impressum
AGBs
H-flux
H-flux Atomic Hydrogen Source with optional shutter
The new H-flux Atomic Hydrogen Source* works by thermally dissociating
hydrogen in an electron bombardment heated fine tungsten capillary
(thermal hydrogen cracker). By bouncing along the hot walls the
molecular hydrogen is cracked to atomic hydrogen. This is e.g. very
useful for in-situ, damage free cleaning of residual oxygen prior to
sample coating or analysis. Other applications are in surface
modifications appreciating the high reactivity of atomic species.
The H-flux Atomic Hydrogen Source is UHV compatible and mounted on a
NW35CF (2.75"OD) flange, making the source an easy retrofit to existing
vacuum systems.
Applications:
Atomic Hydrogen can be used in surface science and
thin film technolgy (MBE, GSMBE) mainly for the following applications:
damage free in situ cleaning e.g GaAs, InP, Ge and
Si. Removal of residual oxygen and carbon.Low temperature cleaningSurfactant - improvement of layer properties during growth post growth surface treatment/improvement chemical passivation and surface reconstruction annealing of amorphous silicon
Key Features:
Key features of the H-flux Atomic Hydrogen Source
are the zero residual ion current and almost 100% cracking efficiency,
due to the superior and unique Bertel design. Integral watercooling is
included as standard to minimise heat load in the system and
outgassing. A manual shutter is available as option.
Zero residual ion currentAlmost 100% cracking efficiencyIntegral water-cooling as standard to minimise heat load in the system
and outgassing Capable of operation in UHV without differential pumping Thermocouple and PID controller as standard for reproducible and
constant operation Filament made of standard Tungsten wire for inexpensive on-site
replacement
Specifications:
Typical operating conditions: the flux of Hydrogen atoms at 10-9 mbar
in a chamber with typical pumps at a distance of 10cm is ca. 5x1013
atoms/cm².
Source Properties:
Gas Flow:
10-5 sccm to 1sccm
Operating Pressure:<10-10 to 10-5 mbar
Hydrogen Flux: ~5x1013 atoms/cm² @ 10cm distance and 10-9 mbar
Beam Divergence: ~15° half angle
Source Hardware:
High Voltage:1,2kV (max) adjustable
Beam current: 50mA (max) adjustable
Power:60W (max) adjustable via voltage and current
In vacuum length: 190mm (without shutter)
In vacuum diameter: 34mm (max)
Mounting Flange:NW40CF (2.75")
Leak valve: required (see option)
Integral cooling:water
Bakeable:200°C
Power Supply:
HV connection via over-specified high voltage
feedthrough with matching connector potted onto the cable and screw-on
retaining sleeve for high-level user safetyAll feedthroughs are user demountable for on-site service/repair Filaments are easily replaced and user fabricated from 0.3mm tungsten
wire of near zero running costs Water-cooled copper jacket to minimise radiated heat and outgassing Water connection via 1/4” Swagelok fittings Gas connection via mini-Conflat (NW16CF) flange Additional spare NW 16CF ports on the multiport for future upgrade with
the options listed above 19" rack mount, 3U high, 230VAC/50Hz (115VAC/60Hz optional)
Options:
Manual shutter: can be operated and closed within
the ID of an DN40CF port.Shutter actuator: for remote/computer controlled shutter operation.
References:
"Simple source of atomic hydrogen for ultrahigh
vacuum applications", U. Bischler and E. Bertel; J. Vc. Sci. Technol. A
11(2), Mar/Apr 1993
"Quantitative characterisation of a highly effective atomic hydrogen
doser", C. Eibl, G. Lackner, and A. Winkler. J.; Vac. Sci. Technol. A
16(5), Sep/Oct 1998.
Atomic Hydrogen Source (front view)
* In cooperation with Prof. Dr. E. Bertel of the
University of Innsbruck
In the interests of continuous product development,
specifications are subject to change without notice.
Quick links to other major tectra products:
Electron
Beam Evaporator -
4-pocket e-beam evaporator - Plasma
Source - Atomic
Hydrogen Source - Sputter Gun - Mini-Coater Deposition
System - Sputter-Coater
