| 摘要 |
FIELD: physics. ^ SUBSTANCE: invention relates to sealed neutron tubes and can be used in neutron generators for research of geophysical and field wells. Sealed neutron tube features axial grooves in tube high voltage insulator on the part of end faces perpendicular to insulator axis; ion source and accelerating electrode are installed at collar flanges. Outer diametre of the central flange part is equal to groove diametre and collar diametre is bigger than groove diametre but less inner diametre of cup; central flange part is installed tightly in grooves and collar of the flange is pressed against insulator end faces. ^ EFFECT: increase of neutron yield, reduction of relative shift of ion source and accelerating electrode, reduction of beam axial deviation. ^ 1 dwg |
