Universal stroboscopic electron schlieren detector having beam-pulse synchronizing means

Claim 1

A STROBOSCOPIC MECHANISM FOR SYNCHRONIZING AN ELECTRON BEAM PULSE WITH A PULSE OF ATOMS IN AN ELECTRON OPTICAL SCHLIEREN DETECTOR APPARATUS WHICH COMPRISES: (A) AN ELECTRON BEAM PRODUCING MEANS NORMALLY BIASED OFF, (B) A SOURCE OF ATOMS FOR PRODUCING A CONTINUOUS BEAMS OF ATOMS, (C) A ROTATABLE BEAM CHOPPER THAT INTERCEPTS SAID BEAM OF TOMS, (D) SAID CHOPPER COMPRISING FIRST AND SECOND AXIALLY SPACED DISCS WITH SAID FIRST DISC FACING SAID CONTINUOUS BEAM OF ATOMS NORMAL THERETO, (E) RADIAL SLOTS IN EACH OF SAID DISCS WITH THE SLOTS IN SAID FIRST DISC ARRANGED TO PASS THROUGH SAID BEAM OF ATOMS PRIOR TO THE SLOT IN SAID SECOND DISC, (F) SAID SLOTS IN SAID DISCS PERMITTING A BEAM PULSE OF ATOMS OF SPECIFIC VELOCITY TO PASS THROUGH SAID RADIAL SLOTS IN SAID SECOND DISC IN TIMED SEQUENCE, (G) A LIGHT SOURCE FOR PRODUCING A BEAM OF LIGHT, (H) REFLECTING SURFACES FOR REFLECTING SAID BEAM OF LIGHT ONTO A LIGHT SENSITIVE ELEMENT FOR PRODUCING AN ELECTRICAL SIGNAL DUE TO SAID LIGHT BEAM, (I) SAID SECOND DISC MODULATING SAID LIGHT BEAM TO PERMIT LIGHT PULSES TO BE REFLECTED ONTO SAID LIGHT SENSITIVE ELEMENTS, (J) SAID LIGHT SENSITIVE ELEMENT PRODUCING ELECTRICAL SIGNALS DUE TO SAID INCIDENT LIGHT PULSES, (K) SAID ELECTRICAL SIGNALS BEING DIRECTED TO SAID ELECTRON BEAM PRODUCING MEANS TO BIAS SAID ELECTRON PRODUCING MEANS "ON" TO PRODUCE ELECTRON BEAM PULSES OF A SPECIFIC TIME DURATION, (1) WHEREBY SAID ELECTRON BEAM PULSES ARE DIRECTED THROUGH SAID BEAM PULSES OF ATOMS FOR A SPECIFIC TIME AND ARE SUBSEQUENTLY DETECTED BY A DETECTOR.