The invention discloses a traveling wave deflection miniaturized streak
image converter tube, and belongs to the field of optical ultrafast imaging. The
fluorescent lamp comprises various electrodes (a
cathode, a grid
electrode, a focusing
electrode and an
anode), a traveling wave deflector, a fluorescent screen and the like. The device is characterized in that the electrodes and the traveling wave deflectors are all made of good conductor
metal materials. The spherical
cathode can reduce the path difference of emitted electrons at different positions. The grid
electrode and the focusing electrode are both of a short cylinder structure and connected with negative
high voltage. The
anode is of a conical cylinder structure, and the
radius of the incident end of the
electron beam is smaller than that of the emergent end of the
electron beam. The traveling wave deflector comprises two
metal sheets with periodic structures, the two
metal sheets are not limited to be parallelly or symmetrically placed in the
anode, and the traveling wave deflector is matched with
electron beams with different energies by controlling main structural parameters of the traveling wave deflector, so that the traveling wave deflector and the electron beams are kept working synchronously in ultrafast time. Four ports of the two traveling wave deflectors are respectively connected with coaxial ports, and the impedance is not limited to 50 ohms. The traveling wave deflector has high deflection sensitivity, and the
voltage of a scanning power supply is greatly reduced. The traveling wave deflection miniaturized streak
image converter tube has the length of about 100 mm and the
diameter of about 50 mm, and has the advantages of compact structure, light weight,
energy conservation and the like.