Physical Science & Biophysics Journal (PSBJ)

ISSN: 2641-9165

Research Article

Evolution Corundum Based Detector in UV and VUV Spectral Region

Authors: Vardanyan J* , Hovhannisyan M , Agajanyan H and Nersisyan M

DOI: 10.23880/psbj-16000127

Abstract

The UV and VUV spectral range of photons is an important area for experimental studies in the field of life sciences and materials science, especially for studies of large molecules, crystals, surface science, etc. Currently, all synchrotron radiation facilities have a special program of experimental studies in the field of VUV spectrum. Large-format ultraviolet image sensors have been and are being actively developed for various space astronomical missions. The detector plays a crucial role in the overall capabilities of the device. There are many detector systems, none of which are ideal for all applications. The wavelength ranges of interest are 10–200 nm for studies in solar physics, 280 nm for communications and missile warnings, and 200–400 nm for studies of the atmosphere. Compactness, high sensitivity, durability and reliability are critical requirements for space applications. One of the earliest methods used to record a system (detection, visualization) - a system based on a scintillator of ionizing radiation (image scanners) remains one of the most flexible and successful methods. However, conventional scintillators have significant limitations: degradation in vacuum, limited point spread function (PSF) (usually> 100 microns FWHM) due to scattering on the screen of a polycrystalline phosphor. Solid scintillation films are ineffective because typically> 90% of the light is captured on the screen by total internal reflection, i.e.

Keywords: Detector; Ultraviolet radiation; Impurities; Corundum; Luminescence; Optical fiber

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