Building a Visible Light Spectrophotometer From NaI Detector
Journal Title: Asian Journal of Chemical Sciences - Year 2017, Vol 2, Issue 2
Abstract
A fluorescence spectrometer is used in the Measurement of a broad range of applications. The main parts of spectrometers are the photocathode connected to photomultiplier and the multichannel scalar (MCS) for Lifetime Measurements in Nanosecond to Seconds Range and multichannel analyzer (MCA) for the intensity and wavelength of UV/V light. There is a wide range of sensors for light sensing applications: from a photomultiplier tube which gives a large voltage pulse for every photon it detects, to cooled thermopiles that absorb kilowatts of power. The aim of this work is to develop and introduce Single Photon Detector as fluorescence spectrometer and chemiluminescence kinetics. For this purpose, the NaI crystal is removed gently from the detector cavity, used in gamma spectroscopy, so that the bare photocathode remained sealed to the photomultiplier. The capability of the system is mainly dependent on the sensitivity of the photocathode. The system is investigated to find a calibration curve of standard solutions. First, applying UV/V atomic absorption spectroscopy and measuring the time course of fluorescence signal from chemiluminescence absorbance. The results obtained are very encouraging to move forward towered more applications.
Authors and Affiliations
Khairi M-S. Abdullah, Lazgin A. Jamil, Parween H. Saleem
Keywords
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- EP ID EP338841
- DOI 10.9734/AJOCS/2017/32418
- Views 140
- Downloads 0
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