Freedom from DOS at Last!
May 27, 2023
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In a previous post I described one of the “workhorses” I have been using for several years for recording spectra. This is the Oriel MS125
Factors Affecting Spectrometer Performance
November 28, 2022
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Introduction There are a number of technical constraints to consider when selecting a spectrometer for a particular application, whether this involves purchasing a commercial model
Off-Axis Guiders and Sighting Optics
November 11, 2022
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Introduction An off-axis guider is a device well known to all astronomers, professionals and amateurs alike. It usually consists of a compact optical unit inserted
Mercury Lamp Spectral Changes at Start Up
October 10, 2022
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This is a quick post that examines the spectral line emission changes that occur when a Mercury-Argon (Hg-Ar) gas discharge lamp is switched on and
Light Sources for Calibrating Spectrometers
September 29, 2022
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The calibration of spectra in wavelength λ that you will see in these different posts has usually been performed with commercial “pencil-type” spectral lamps of
Spectrometer Calibration
September 14, 2022
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Introduction Modern spectrometers today, regardless of their size, employ sensitive linear CCD and CMOS sensors. The most popular sizes have 1024, 2048 and more recently
Spectrometer Designs
September 3, 2022
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Introduction The development of the spectroscope over the last 160 years since its invention has paralleled the evolution in technological advances. This is particularly the
FICS -Fixed Imaging Compact Spectrograph
June 17, 2022
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Introduction As its name implies, this spectrometer has a fixed diffraction grating. So the wavelength range available and the resolving power (the spectral resolution) are