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Spectrometer detector
The spectrometer detector is the heart of every spectroscopy instrument. In Azar 1394 (December 2015) RasaAndishan completed the RA-LSC-0526 line scan camera for exactly this job. You can use this camera as the spectrometer detector in your instrument. This spectrometer detector takes exposures of up to 35.5 minutes and picks up even very faint light.
See the full technical specifications on the RA-LSC-0526 line scan camera page. All models are listed in the line scan camera section.
In low-light spectroscopy, the most important thing is being able to collect light for a long time. The RA-LSC-0526 is built for exactly that. Its exposure can be set from 1 μs to 35.5 minutes. Its linear CCD sensor has 3000 pixels over a length of 21 mm. Each pixel is 7 μm wide and 200 μm tall.
The camera covers 400 to 900 nm. If a 500 nm wide band is spread across the sensor, each pixel sees about 0.17 nm of the spectrum. This keeps closely spaced peaks apart. The 200 μm pixel height also captures the image of the entrance slit over its full height.
The camera is also useful for measuring laser beam position. If the laser line jitters slightly in the vertical direction, the tall pixels keep it on the sensor. At 325 lines per second, you get a fresh reading every 3.1 ms. Long exposure also helps you measure very weak radiation. For example, with weak luminescence you can collect light until you have enough signal.
RasaAndishan offers free consultation for its line scan cameras. The cameras come with a three-year unconditional warranty. Our technical team will also help you set the camera up in your own software. The features of this detector's demo software are listed on the product page too.
This camera is used in visible and near-infrared spectrometers and in Raman and fluorescence spectroscopy. Its electronic shutter prevents saturation with bright sources. The output is digitized with a 16-bit converter. See the full specifications and the different versions on the RA-LSC-0526 3000-pixel line scan camera page. To review the basics, read the Spectrometer article on Wikipedia.