McPherson - Model 625 - Mercury Calibration Source
From Spectral Lamps and Light Sources for Spectroscopy
Mercury calibration lamps are small, rugged, and easy to use. Because the lamps operate at low pressure, well spaced, intrinsically narrow and bright Mercury emission lines dominate the output spectrum. Background between the lines is very low. The output wavelengths are known exactly and are ideal for spectral calibration. Single lines are easily isolated with optical filters for alignment or other applications. Closely spaced lines are very useful for testing the resolution of dispersive instruments. Mercury spectral calibration lamps make excellent high intensity short wave UV sources too. About 90% of the total output is in the 253.65nm emission line. Appropriate UV eye safety measures are required. The visible lines are intense and useful for calibration of McPherson spectrometers.
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Product Details
- Narrow, Discrete Spectral Lines
- Excellent Stability
- Long Life
- Fits to McPherson 5' Slits
Specifications
- Source : Low pressure Hg pencil-type lamp
- Source Emission : Discrete, Narrow, Intense Line Emission
- Typical Intensity at 253.65nm : 4400 uW/cm2 at 0.75inch distance
- Image Size : approx 3mm x 20mm high
- Power Supply : AC, 110V and 220V versions available
- Rated Lamp Life : 5000 hours
- Size : 5' dia x 1' long
- Weight : 1 lbs
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