FIELD: physics.
SUBSTANCE: gas-filled neutron source with a Penning ion source with a thermionic cathode is made in form of an airtight metal-glass bottle. Inside the bottle there is a target, ion-optical system, ion source, working gas generator and gas absorbent. The gas absorbent is placed on one of the inlets of the legs of the gas-filled neutron tube, has a built-in thermo-heater and is made in form of a bushing from sintered fine-grained titanium powder with mass ranging from 100 to 350 mg.
EFFECT: invention allows for increasing electric strength of the ion-optical system of the tube with a Pennning ion source and a thermionic cathode, as well as increasing neutron current and service life.
1 cl, 1 dwg
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