UV Radiation from the Night-Time Atmosphere seen from the “Universitetsky-Tatiana” Satellite

Abstract

Articles you may be interested inA readout for large arrays of microwave kinetic inductance detectors Rev. Sci. Instrum. 83, 044702 (2012); 10.1063/1.3700812 HIRDES-The main instrument of the WSO/UV satellite AIP Conf.Characterization and real-time optical measurements of the ionizing radiation dose response for a new radiochromic medium Med.Abstract. Detectors on the "Universitetsky-Tatiana" satellite measured a smoothly varying intensity of UV radiation from the night-time atmosphere in the nadir direction and the intensity of the energetic electron flux at the orbit. At high latitudes the UV intensity in the auroral oval is interpreted as being due to electrons penetrating into the atmosphere. At middle latitudes the UV intensity is an order of magnitude less and more data are needed to reveal the origin of this radiation. Millisecond flashes of UV radiation were observed. The flashes' energy, temporal profile and global distribution are similar to these parameters for Transient Luminous Events (TLEs). These studies will be continued aboard the next satellite "Tatiana-2".

Program of transient UV event research at Tatiana‐2 satellite

“…Tatiana data on the electron flux at the orbit allow comparison of the latitude profiles of electron flux and profiles of UV radiation. In auroral zone the position of UV intensity is correlated to electron intensity at the Tatiana orbit, if movement of electron to its track end in the atmosphere along the geomagnetic field is taken into account [ Dmitriev et al , 2009].…”

Transient luminous events registered with a ground pinhole

“…This perturbation was considerate as background noise in the tracking of the original particle. The high brightness of TLE may allow us to use the simplest pinhole optics for measuring the image in pixels of UV detector [5,6]. The optimal imaging quality in a pinhole camera is achieved if the hole size is equal to the detector pixel size.…”

Ultraviolet radiation detector to obtain the energy and rate of particles at different heights

“…The UV detector [1] consists of a very small scintillator plastic as first transducer, see figure 1. Scintillation detectors make use of special materials, when exposed to ionizing radiation, they emit a small flash of light.…”