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MICRO-CONTROLE / Spectra-Physics
Calibrated Sources and Services

Calibrated Sources and Services

Product catalog summary

Overview: This document provides technical specifications and guidelines for Oriel calibrated light sources, including deuterium and quartz tungsten halogen (QTH) lamps. These lamps are used for spectral irradiance calibration in UV and VIS-NIR ranges.

Specifications: The document details the calibration ranges and power options for different lamp types. QTH lamps are available in 45 W, 200 W, and 1000 W, with calibration ranges from 250 to 2400 nm. Deuterium lamps are available in a 30 W model with a calibration range of 200 to 400 nm.

Calibration and Uncertainty: Each lamp is NIST traceable and tested for specification compliance. Uncertainty values for both NIST and Newport are provided, with additional uncertainty due to calibration transfer. Tables in the document list these values for different wavelengths.

Usage Recommendations: Users are advised to select lamps based on the irradiance levels they need to measure. Deuterium lamps are recommended for measurements below 330 nm due to their higher UV radiation output and minimal visible light emission.

Safety Considerations: Safety precautions include using open-air mounts and wearing UV goggles to minimize exposure. The document emphasizes the importance of posting safety signs and avoiding flammable materials near high-power lamps.

Ordering Information: The document provides model numbers for complete calibration sources and individual lamps, along with their respective calibration ranges and wattages.

Catalog excerpts

72 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 L i g h t S o u r c e s TECHNICAL REFERENCE MONOCHROMATOR AND INCANDESCENT SOURCES ARC SOURCES DEUTERIUM SOURCES CALIBRATION SOURCES FIBER ILLUMINATORS PHOTOLITHOGRAPHY SOLAR SIMULATORS INSTRUMENTS ACCESSORIES FOR ORIEL LIGHT SOURCES Oriel Calibrated Sources and Services 63945 Calibrated Deuterium Lamp These NIST traceable calibrated lamps are reliable sources of known spectral irradiance in the UV and VIS-NIR. Use these systems to calibrate your own irradiance source, or to transfer our NIST traceable calibration to a spectroscopic detection system. We offer deuterium and quartz tungsten halogen irradiance standards as individual lamps and as complete sources, which include a Radiometric Power Supply, lamp mount and lamp (with calibration data). NIST Traceable Each of our calibrated lamps is thoroughly tested to specification. Lamps are preconditioned and selected as necessary. The irradiance measurements are taken in our specially outfitted calibration laboratory. In the U.S., the National Institute of Standards and Technology (NIST) provides original uncertainties for their standard lamps. This range varies according to wavelength and lamp structure. There is an additional, small, uncertainty introduced during our procedure. Tables 1 and 2 show both (NIST and Newport’s) uncertainty values for the 1000 W QTH and 30 W deuterium lamps. Table 1 k = 2 Uncertainty Values for 63978 1000 W QTH Source Wavelength (nm) Approximate NIST Uncertainty (%) Approximate Newport's Uncertainty* (%) 250 2.23 2.8 350 1.35 2.5 654.6 1.01 2.5 900 1.34 2.5 1300 1.42 2.5 1600 1.89 2.8 2000 3.29 2.8 2400 6.50 2.8 * Additional uncertainty due to calibration transfer. Note: the uncertainty values can vary from time to time. Table 2 k = 2 Uncertainty Values for 63979 30 W Deuterium Source Wavelength Range (nm) Approximate NIST Uncertainty (%) Approximate Newport's Uncertainty* (%) 200 1.1 3.0 210 1.0 3.0 250 1.0 3.0 350 1.0 3.0 * Additional uncertainty due to calibration transfer. Note: the uncertainty values can vary from time to time. Produce Your Own Standard Lamps have a limited life. If you use the lamp frequently, we recommend that you purchase one or more non-calibrated lamps to produce your own working standard(s). Which Source Do I Choose? We offer three types of calibrated irradiance sources: Calibrated QTH Sources • 250 - 2400 nm or 300 - 2400 nm (lamp dependent) calibration range • Offered in 45 W, 200 W and 1000 W powers Calibrated Deuterium Sources • 250 - 400 nm calibration range • 30 W model, only Custom Sources/Calibrations • Calibrations of your lamp • Custom standards Choose a lamp that provides irradiance levels close to what you would like to measure in your wavelength range of interest. Using a lamp that produces too much or too little irradiance puts higher demands on the linearity of your detection system. If you need an irradiance standard below ~330 nm, choose the deuterium lamp. This lamp provides more UV radiation than the QTH lamps (see Fig. 1), is calibrated down to 200 nm, and has the additional advantage of producing very little visible light. The low level of visible and near IR radiation reduces the out of band problems that plague UV calibration of instruments based on silicon photodiodes and other broadband detectors.

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73 Email: [email protected] • Web: newport.com TECHNICAL REFERENCE CALIBRATION SOURCES DEUTERIUM SOURCES ARC SOURCES INCANDESCENT SOURCES MONOCHROMATOR AND FIBER ILLUMINATORS SOLAR SIMULATORS PHOTOLITHOGRAPHY INSTRUMENTS ACCESSORIES FOR ORIEL LIGHT SOURCES WAVELENGTH (nm) IRRADIANCE (mW m nm ) -2 -1 0.01 10 1.0 0.1 100 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 1000 W QTH LAMP 45 W QTH LAMP 200 W QTH LAMP DEUTERIUM LAMP Fig. 1 Spectral irradiance of calibrated lamps Open Air Lamp Mounts Our Calibrated Lamps are run in open-air. The mounts holding the lamps are simple, rod-mounted...

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