Means for determining the direction and velocity of nuclear particles

Claim 1

APPARATUS FOR DETERMINING THE VELOCITY AND DIRECTION OF INDIVIDUAL, CHARGED, NUCLEAR PARTICLES OF DIFFERENT VELOCITIES AND DIRECTIONS, COMPRISING A CYLINDRICAL CONTAINER FORMING A CLOSED CHAMBER, A GAS IN SAID CHAMBER, MEANS FOR SELECTIVELY ADJUSTING THE PRESSURE OF SAID GAS SO THAT SAID GAS HAS AN INDEX OF REFRACTION GREATER THAN UNITY, MEANS FOR INTRODUCING SAID PARTICLES INTO SAID GAS TO PRODUCE CERENKOV LIGHT IN SAID GAS HAVING DOMINANT WAVELENGTHS FROM .2 TO .5 MICRON, A MIRROR FOR REFLECTING SAID CERENKOV LIGHT, A LENS HAVING A BOARD FIELD OF VIEW FOR FOCUSING SAID REFLECTED CERENKOV LIGHT INTO INDIVIDUAL RING IMAGES OF LIGHT IN THE FOCAL PLANE OF SAID LENS, THE SIZE AND POSITION OF SAID RING IMAGES CORRESPONDING RESPECTIVELY TO THE VELOCITY AND DIRECTION OF SAID INDIVIDUAL PARTICLES, AND IMAGE INTENSIFYING MEANS HAVING AN UNOBSTRUCTED CESIUM ANTIMONY CATHODE IN THE FOCAL PLANE OF SAID LENS FOR RECEIVING SAID RING IMAGES AND SUPPLYING INTENSIFIED RING IMAGES WHOSE SIZE AND POSITION CORRESPOND WITH THE VELOCITY AND DIRECTION OF SAID RESPECTIVE, INDIVIDUAL, CHARGED, NUCLEAR PARTICLES.