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Friday, December 4, 2020 | History

3 edition of Evaluation of miniature vacuum ultraviolet lamps for stability and operating characteristics found in the catalog.

Evaluation of miniature vacuum ultraviolet lamps for stability and operating characteristics

Evaluation of miniature vacuum ultraviolet lamps for stability and operating characteristics

final report, Lyman-alpha task

by

  • 39 Want to read
  • 2 Currently reading

Published by The Center in Marshall Space Flight Center, AL .
Written in English

    Subjects:
  • Miniature lamps,
  • Ultraviolet radiation -- Industrial applications

  • Edition Notes

    Statementby W.A. Hurd ; prepared for George C. Marshall Space Flight Center, National Aeronautics and Space Administration
    SeriesNASA-CR -- 171345, NASA contractor report -- 171345
    ContributionsGeorge C. Marshall Space Flight Center, Radiometrics, Inc
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14928004M

    Sterilization by ionizing radiation, primarily by cobalt 60 gamma rays or electron accelerators, is a low-temperature sterilization method that has been used for a number of medical products (e.g., tissue for transplantation, pharmaceuticals, medical devices). Conventional lamps lose up to 40% of UV disinfection power over lamp life. Philips® lamps will deliver up to 85% disinfection power at the end of lamp life providing more uniform disinfection power over the life of the equipment, when the lamps are changed annually. Ultraviolet light wavelength Visible Light nm UV-C UV-B UV-A. of the UV lamp must be shielded with aluminum foil tape or equivalent non-combustible material. When installing this unit, select a mounting location that prevents ultraviolet light exposure of plastic components with unknown resistance to ultraviolet light. Ultraviolet light may cause color shift or structural degradation of plastic components. UV Light Sanitizer Sterilizer Disinfection Portable Lamp UVC Ultra-Violet Wand ⭐️⭐️⭐️⭐️⭐️ Best Seller Same Day Shipping US Stock. Brand New. $ Save up to 6% when you buy more. or Best Offer. Free Shipping. Free Returns. Watch. T H S P O N F U S S O R E D P Z 3 7 E.

    chamber. A radio-frequency ~rf! voltage operating at MHz was applied to the one-turn coil antenna. The MHCL was used as a vacuum ultraviolet ~VUV! light source for absorption spectroscopy. Detailed structure of the MHCL was described in Ref. The O2 MHCL was operated at a total pressure of 1 atm and a discharge current of 10 mA. O2.


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Evaluation of miniature vacuum ultraviolet lamps for stability and operating characteristics Download PDF EPUB FB2

Vacuum ultraviolet (VUV) light has been used in numerous fields, such as cleaning, surface modification, and sterilization, because short wavelength light with high photon energy is capable of breaking strong chemical bonds [1–3]. Therefore, performance improvements of VUV lamps contribute to the progress of these by: 2.

Current third-generation synchrotron light sources cover the range from 10 eV ( nm) to about 20 keV ( Å), a region including the binding energies for the sharpest core levels of all the elements (10 to eV), and in particular the “organic” elements carbon, nitrogen, and oxygen (,and eV).

D high power vacuum UV (VUV) lamps are deuterium dis-charge lamps of W electrical power. Important properties of the lamps are: directed UV radiation, a broad continuous spec-trum between nm and nm, high UV radiation flux at nm and nm. D light sources with a spectral range between nm andFile Size: 1MB.

The designs of vacuum ultraviolet lamps offering a high stability, their basic specifications, and acceptance tests are described. This is a preview of subscription content, log in to check access. Access optionsCited by: 6. Neumeier et al.: Attenuation of vacuum ultraviolet light in liquid argon 3 Fig.

Schematic drawing of the experimental setup. Broad-band VUV light was sent from a deuterium lamp through the inner cell (see g.1), which could be either evacuated or lled with liquid argon, and.

UV Light Box/UV Transilluminator*- Commonly used for visualizing nucleic acids, this “box-shaped” piece of equipment contains an ultraviolet lamp. The clear, glass face allows the light to illuminate the gel while potentially exposing the user. To reduce risk of injury, most models come equipped with a shield to filter excess light.

Analytical performance characteristics of a new vacuum ultraviolet (VUV) detector for gas chromatography (GC) are reported. GC-VUV was applied to hydrocarbons, fixed gases, polyaromatic hydrocarbons, fatty acids, pesticides, drugs, and estrogens.

Applications were chosen to feature the sensitivity and universal detection capabilities of the VUV detector, especially for cases where mass. UV lamps useful for UV/H 2 O 2 treatment processes include the low pressure mercury vapor lamps and excimer UV-vacuum lamps.

The first emits virtually monochromatic radiation at a wavelength close to nm. Xe 2 * excimer sources emit at about nm. Table presents examples of low pressure mercury vapor and excimer UV-vacuum lamps that can be used for the UV/H 2 O 2.

Other articles where Vacuum-ultraviolet radiation is discussed: spectroscopy: Broadband-light sources: intense sources of ultraviolet and vacuum-ultraviolet radiation, and so excitation in an electron discharge remains a common method for this portion of the spectrum.

(The term vacuum ultraviolet refers to the short-wavelength portion of the electromagnetic spectrum where the photons are. The Germise UV light smartphone sanitizer is a travel, portable folding UV light wand that uses a 3-watt UV-C lamp to sterilize and kill germs.

Germise is one of the few UV sterilization light manufacturers that discloses the specific wavelength used (nm). A strong germicidal effect is provided by the light in the shortwave UV-C band, but a care should be taken to handle UV-C light and important to design systems for UV-C light to exclude leakage UV.

A team of Japanese and Malaysian researchers has developed a small vacuum-ultraviolet ()-emitting lamp that combines a carbon-nanofiber (CNF) cold-cathode field emitter with a thin-film potassium magnesium fluoride (KmgF 3) phosphor that emits light at to nm wavelengths, with emission peaks at the and nm small, efficient lamp could be used for many industrial.

European Operations: Ultra-Violet Products Ltd., Unit 1, Trinity Hall Farm Estate, Nuffield Road, Cambridge CB4 1TG UK • Tel: +44(0) USING THE ULTRAVIOLET LAMP Plug your lamp into a standard AC outlet. Single ultraviolet wavelength lamps utilize an ON/OFF rocker switch. Multiple ultraviolet wavelength.

The LED UV light cured monomers that passed the compatibility testing were then surface coated on the AFP propellant substrate and the actual mixes were characterized for incompatibility via Vacuum Thermal Stability (VTS).

The propellant surface coating formulations that passed the VTS test were then scaled up to g surface coating. The UV-Radiation Source. For use in very small vacuum chambers or machinery, we offer designs, in which „Compact“ sources from natural quartz are used.

To ensure optimal desorption and cleaning efficiency, this design should only be used in small systems and low volume laboratory equipment, spanning short distances. The urine will glow in the dark using a blacklight (longwave UV light).

Since the UV light is relatively weak, it works best to darken the room as much as possible. Using lower wattage blacklights (4 watt) require being close to the inspection area with it as dark as possible.

Relevant UV Lamp Models. Mini UV Black Light Lamp, LW UVL Electrodeless VUV Light Sources. Resonance Ltd. electrodeless Vacuum Ultra-Violet sources are designed to be reliable, compact and maintenance free with an operating life often in excess of hours.

We offer light sources with line, continuum, molecular, and Auroral emissions that mount to a inch or larger CF type flange. Cold cathode germicidal UV lamps have favorable operating characteristics at reduced temperatures. They are, therefore, widely used in walk-in refrigerators and holding rooms.

STER-L-RAY ® Cold Cathode germicidal UV lamps are well suited for disinfection of air and surfaces due to their long life and low depreciation. Cold Cathode germicidal. Ultraviolet Lamps 1 – 30 Interest Areas. Life Science; Chemicals; Chromatography; Industries; Fisherbrand; Outlet Corner; Events and Exhibitions.

The Story of Science World; Activate Science; On-Site Exhibitions; Trade Shows; Digital Commerce Update; Webinars; Business Solutions. Centrifuge Guide; New Lab Start-Up Program.

Others believe UV lamps provide a false sense of security, or don’t see the merit in a UV lamp (see NIH reference). Germicidal lamps utilize UVc radiation (typically nm wavelength). This energy is very good at doing a specific task, but it’s a poor broad spectrum decontaminant, and here is why.

What your BSC's UV lamp can do. Read About Safety and the Use of UV-C Germicidal Light - Since Atlantic Ultraviolet Corporation has engineered and manufactured ultraviolet water purification equipment, ultraviolet air sanitizing systems, uv surface disinfection systems, and germicidal uv lamps for residential, commercial and industrial Germicidal UV-C Applications.

Adaptive Cruise Control (ACC) Operating Characteristics and User Interface Adaptive cruise control (ACC) is an enhancement of conventional cruise control systems that allows the ACC-equipped vehicle to follow a forward vehicle at a pre-selected time gap, up to a driver selec.

Ultraviolet light assemblies ("lights") provide the invisible ultraviolet (UV) light that causes fluorescent minerals to glow. Some background information about ultraviolet light will help the new collector understand the different types of UV lights. Ultraviolet light has wavelengths shorter than visible light, while infrared has.

The designs of vacuum ultraviolet lamps offering a high stability, their basic specifications, and acceptance tests are described. Discover the world's research 17+ million members.

“Our lamp is a promising light source in terms of lifetime, size, heat conduction and stability,” said Shingo Ono of the Nagoya Institute of Technology in Japan, who led the research. “[It] has the potential to be an excellent alternate light source to low-pressure mercury lamps, excimer lamps and deuterium lamps.”.

Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 (with a corresponding frequency around 30 PHz) to nm ( THz), shorter than that of visible light, but longer than radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the is also produced by electric arcs and specialized lights, such.

Researchers have created a "solid-state lamp" that emits high-energy ultraviolet (UV) light in the shortest wavelengths that have ever been detected. The wavelengths are from to nanometers, which is considered vacuum UV light, an American Institute of Physics news release reported.

This type of light can propagate inside of a vacuum. Vacuum ultraviolet lamp of the future created in Japan 22 April The VUV lamp, which has a potential to be powerful tool for the surface treatment and optical cleaning, was.

Design rules for vacuum chambers C. Hauviller CERN, Geneva, Switzerland Abstract Producing a vacuum chamber means de fining the boundary conditions (inner and outer envelopes, operational constraints, etc.), choosing the material, designing the parts, manufacturing and assembling these parts together and putting them under vacuum.

These lamps possess excellent features, such as high output, high stability, and extended service life, which are necessary for light sources used in analytical instruments.

The L series lamps guarantee an operating life of hours, which is the longest operating life of any deuterium lamp. Photodetectors or light sensors can be broadly divided by their operating principle into three major catego-ries: external photoelectric effect, internal photoelectric effect and thermal types.

The external photoelectric effect is a phenomenon in which when light strikes a metal or semiconductor placed in a vacuum, electrons.

• The 11SC-1 is a short wave (nm) ultraviolet lamp with a lighted tube length of 2 1/8 in (cm), 1/4 in (cm) outside diameter (OD).

It may be used alone or with any of three separately available light shields, each with a different aperture for directing the light. • The 11SC-2 is a short wave UV lamp with a lighted tube length. Abstract.

Large area, surface discharge pumped, vacuum ultraviolet (VUV) light source. A contamination-free VUV light source having a 2 emission area in the nm region of the electromagnetic spectrum with an average output power in this band of about 2 J/2 at a wall-plug efficiency of approximately 5% is described.

takes lamps F10, K10 and M10 Aluminum, with bracket which holds lamp, face down, mm above the x mm base Approximate area of effective radiation at table level is x mm with single-tube lamps; x mm with two-tube lamp F50 Ultraviolet Lamp Tube 4.

Characteristics of Spacecraft Materials, and the older ASTM E, Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment.

Material identification, location, vacuum exposed surface area, operating temperature range and condensable outgassing. Buy UVP Handheld mini ultraviolet lamps and more in our comprehensive Light and Sound stores. FREE SHIPPING on all orders.

See Details. United States. Shopping Cart. Item Total = $ Items = 0. View Cart. United States. A special fluorescent tracing additive for oil, fuel or Automatic Transmission Fluid (ATF). Brings leaks to light with an ultraviolet lamp. Once the Reveal additive circulates through the system, leaks are easy to locate under a UV lamp.

NC Abstract. Large area, surface discharge pumped, vacuum ultraviolet (VUV) light source is disclosed. A contamination-free VUV light source having a cm{sup 2} emission area in the nm region of the electromagnetic spectrum with an average output power in this band of about 2 J/cm{sup 2} at a wall-plug efficiency of approximately 5% is described.

The UV LED lamps are much smaller than the regular ultraviolet lamps and can be installed in spaces that do not permit installation of regular UV lamps. All UV lamps are powered by ballasts that provide the starting electrical voltage to ionize the gas in the UV lamp.

X-rays Ultraviolet Visible Light Infrared VACUUM- UV-C UV-B UV-A UV Hg - Low-pressure Lamp nm Wavelength (nm) Figure 1. UV Light Spectrum. Medium Pressure (MP) Lamps Aquafine MP lamps are considered to be polychromatic lamps, lamp hours relative elect.

lamp operating cost relative annual O&M costs 8, hrs 4. The range of lights manufacturers,wholesalers we represented is extensive. If you are mainly looking for newest Ultraviolet Lamp and Ultraviolet Lamp factory, Here you will find all the options you can ever have imagined.

Be sure to consider all the options you might be able to find such as uv light, uv lamp, uv sterilizer.A vacuum ultraviolet (VUV) field emission lamp was developed by using a neodymium ion doped lutetium fluoride (Nd 3+: LuF 3) thin film as solid-state phosphor and carbon nanofiber field electron emitters.

The thin film was synthesized by pulsed laser deposition and incorporated into the lamp. The cathodoluminescence spectra of the lamp showed multiple emission peaks at, and &#.Early Adoption of UV-C Light Emitting Diode Technology for Water Disinfection.

Combined Life Cycle Assessment and Life Cycle Costing of UV-based Treatment of Emerging Contaminants. Optimizing efficiency of Low-Pressure Lamp UV Systems. An Insider’s Guide to UV Treatment for Swimming Pools and Spray Pads – Regulations, Technologies, and.