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ILT, Xenon to Develop Radiometer for Pulsed Light

Photonics.com
Jul 2017
PEABODY, Mass., Aug. 2, 2017 — International Light Technologies Inc. (ILT) has entered into a collaborative agreement with Xenon Corp. to develop a custom version of its ILT2400 handheld radiometer to meet the needs of measuring Xenon’s pulsed light systems.

The ILT2470XE UV Measurement System will be offered in combination with Xenon pulsed light systems including Xenon’s X-1100 low-cost benchtop pulsed light system, that enables researchers to more easily characterize new processes using the technology. Pulsed light offers a number of benefits over continuous light sources because it delivers more photons faster and at lower temperatures.

“To put it in laymen’s terms, think of penetrating a block of wood with a nail: one could press a nail into the wood with a finger for 10 seconds without effect, or exert the same amount of energy and drive the nail instantaneously into the wood with a single strike of a hammer,” said Ryan Hathaway, senior applications engineer at Xenon. “Pulsed light, like the hammer, delivers light at high peak power for deep penetration.”

“Typical light meters — even professional grade meters — can’t react to rapid changes in intensity of the light, from zero/dark to peak,” said Jill Fowler, director of systems and sources at ILT. ”It’s the equivalent of trying to see well on a dance floor under a strobe light. The human eye is simply not able to adjust fast enough. It’s the same for light meters that are not specifically designed to do so.”

Because of this challenge, Xenon was recommending their customers use oscilloscopes for process validation.

“We knew ILT had extensive experience in making precision light measurement systems as we’d used the ILT1700 for over ten years,” Hathaway said. “We had evaluated their ILT2400 handheld meter and liked the ergonomic design and app-based interface, but the unit couldn’t measure pulsed light. We met with Jill Fowler at ILT and asked if their ILT2400 meter could be modified for our application.”

First, modifications were made to increase the speed of the meter. Second, an interface was created to capture the key pieces of data, including flash count, irradiance and dose. The custom “Flash App” on the meter’s home screen was designed to offer Xenon customers an easy means of verifying the UV output of their pulsed lamp systems over a very broad range of intensities and pulse rates for maximum versatility.

ILT is a developer of light measurement and detection systems for the infustrial, academic and research markets. Xenon manufactures high-performance, mercury-free pulsed UV flashlamps and UV/VIS systems.

GLOSSARY
xenon
A rare gas used in small high-pressure arc lamps to produce a high-intensity source of light closely resembling the color quality of daylight.
metrology
The science of measurement, particularly of lengths and angles.
BusinesspartnershipsInternational Light TechnologiesILTXenonlight sourcesmetrologyAmericasindustrial

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