WAY OF FORMING OF NEUTRON FLOW OF GAS-FILLED NEUTRON TUBE Russian patent published in 2009 - IPC G21G4/02 G01V5/04 H01J27/04 

FIELD: physics.

SUBSTANCE: invention concerns ways of manufacturing of gas-filled neutron tubes and forming of a neutron flow. The way of forming of a neutron flow of a gas-filled neutron tube with an ionic source consists in creation of a magnetic field by disk and ring magnets; azimuthally symmetric transition of a magnetic field through zero value is formed at an exhaust outlet for ions in a cavity of the anticathode of an ionic source. Parametres of the disk and ring magnets are chosen from conditions: B_d≥2B_c≥240 mT; 2.5≤S/h≤3.0; 2.0≤D/l≤2.5, where: B_d - maximum magnetic induction of a disk magnet; B_c - maximum magnetic induction of a ring magnet; S - distance between magnets; D - diametre of a cavity in the anticathode; l - depth of a cavity in the anticathode; h - anode height.

EFFECT: increase of a neutron flow, reduction of working pressure, increase of reliability and operational life, reduction of diametre of the device.

2 cl, 2 dwg