Xenon Flashlamps
2Pages

Catalog excerpts

120 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 Xenon Flashlamps 6426 and 6427 Xenon Flashlamps, with 68826 Power Supply. Our flashlamps offer certain advantages over DC arc lamps; they have relatively higher UV output and they emit in short pulses. The short, microsecond, pulses have application in lifetime and kinetic studies. We offer two xenon flashlamps: a 0.32 J and 5 J lamp, for spectral irradiance curves. This page describes the flashlamps only; see page 118 for information on the power supply, housing and other components necessary to build complete Flashlamp Systems. Guided Arc Lamp This small bulb lamp, model 6426, uses arc guiding electrodes to ensure repeatable arc paths. We solder the bulb contacts to the trigger circuit board for highest reliability. The stability of the light output is excellent with a variation of less than 2%. The side emitting bulb has a 3 mm arc gap and a fused silica envelope for highest UV output. Arc dimensions are 3 x 2.5 mm. Maximum pulse energy is 0.32 J. We operate this lamp to 100 Hz. Lamp life is greater than 108 flashes. TIME (ìs) 0 10 20 30 40 50 60 RELATIVE POWER 1.6 ìs Fig. 2 Pulse shape of 6426 Xenon Flashlamp. 5 J Large Bulb Lamp This rugged lamp has a 3 mm electrode gap. The lamp radiates from an intense 3 x 2.5 mm volume, and the envelope is high quality fused silica. You can operate this lamp from low frequencies up to 60 Hz. The input pulse energy, 5 J at frequencies up to 12 Hz, falls to 1 J at 60 Hz. This doesn’t greatly influence the spectral distribution and average irradiance, but the spectral energy density produced by each pulse follows Fig. 3. • Excellent sources of low to medium power UV-NIR CW radiation • Minimize unwanted sample excitation • High ultraviolet peak power • Short pulses allow time resolution 200 400 600 800 1000 WAVELENGTH (nm) IRRADIANCE AT 0.5 m (mW m nm ) -2 -1 10 1 0.1 75 W CONTINUOUS ARC LAMP 6427 FLASHLAMP RUNNING AT 60 Hz WITH THE 68826 POWER SUPPLY Fig. 1 Comparison of average irradiance at 0.5 m from the 6251 75 W xenon DC arc lamp and the 6427 Large Bulb Flashlamp running at 60 Hz (60 W average). A Note About EMI Arc lamp ignition requires high voltage, high frequency pulses to break down the lamp, and a high current discharge to sustain the arc. Ignition creates significant electromagnetic energy, which may occasionally interfere with associated equipment. Even EMI proofed circuits may require extra attention to earthing, cable routing and EMI shielding, to avoid ignition interference. Interference may be more problematic with a pulsed arc lamp system as each pulse requires lamp ignition.

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121 Email: sales@newport.com • Web: newport.com L i g h t S o u r c e s TECHNICAL REFERENCE CALIBRATION SOURCES DEUTERIUM SOURCES ARC SOURCES INCANDESCENT SOURCES MONOCHROMATOR AND FIBER ILLUMINATORS SOLAR SIMULATORS PHOTOLITHOGRAPHY INSTRUMENTS ACCESSORIES FOR ORIEL LIGHT SOURCES 1.13 (29) 1.18 (30) 0.25 (6.3) 1.5 (38) 1.88 (48) 0.12 ARC GAP (3) 2.1 (54) 2.4 (61) 6426 0.32 J GUIDED Xe 0.12 ARC GAP (3) 1.63 (41) 3.25 (83) 0.98 (25) 0.33 (8.3) 6427 5 J LARGE BULB Xe 2.0 (51) Fig. 4 Dimensional diagram of Xenon Flashlamps. Ordering Information Model Lamp Type Effective Arc Size Max Energy (J)...

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Xenon Flashlamps 2Pages

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Xenon Flashlamps
2Pages