FIELD: investigations in nuclear physics and nuclear power engineering.
SUBSTANCE: proposed device has cylindrical ionization chamber with screen, high-voltage power supply, and charge-sensing amplifier. Used as cathode is detector case whose outer surface is coated with insulating material and used as working material is extremely pure xenon held under pressure of 40 - 50 at density of 0.3 - 0.6 g/cm3 and doped with hydrogen in the amount of 0.2 - 0.3% of total content of xenon. Metal screen disposed inside ionization chamber has degree of screening inefficiency σ ˜ 3 - 5%.
EFFECT: improved resolving power.
1 cl, 1 dwg
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