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Registration of Weak UV-Radiation

#0742


Research of Weak UV-Radiation Registration Methods in Presence of Visible Range Radiation with Use Photoelectron Devices for Surface Condition Analysis

Tech Area / Field

  • PHY-RAW/Radiofrequency Waves/Physics

Status
3 Approved without Funding

Registration date
11.09.1996

Leading Institute
Research Institute of Optical and Physical Measurements, Russia, Moscow

Supporting institutes

  • VNIITF, Russia, Chelyabinsk reg., Snezhinsk

Project summary

The purpose of the project is the research of weak UV-radiation registration methods in presence of visible range radiation with use photoelectron devices for surface condition analyses in systems:
- Control system of electrical isolators of high-voltage equipment and power-generating systems;
- Material protection systems, control and accounting (MPC&A) of nuclear materials (NM);
- Ecological monitoring.

The assumed amount of works on project includes the following interconnected directions of researches:


1. Analysis, choice and substantiation of types of photosensitive devices for weak UV-radiation registration in above-stated systems.
2. Settlement and experimental substantiation of methods of registration.
3. Simulation of specialized "sun-blind" UV-sensitive electron-optical device, meant for receiving information about space distribution weak UV-radiation.

The methods and instruments for registration of weak UV-radiation with the use of wide range radiation sensitive photoelectron devices (including visible range) with using special filters are well known. The main disadvantage of this method is existence of additional optical losses and decreasing of signal/noise ratio. The expected requirements of electron-image tubes with "sun-blind" photokathode for electrical companies in Russia is 8-10 thousands pieces.

Devices with "sun-blind" photokathodes may be also used in nuclear plants security systems and for ecological monitoring. At present such devices doesn't used for these purposes. That's why the state of this work seems to us to be the pioneer one. Realization of project assumes the output of recommendations on development of specialized electron-optical engineering and its application in modern control and measuring systems.

The experience of the participants in electron-image tubes (electron-image converters), and other optic-measurement devices researching and manufacturing will help the successful work.


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