Neutron streak camera
OwnerChing L. Wanginventor
Life of this patent
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Abstract
Apparatus for improved sensitivity and time resolution of a neutron measurement. The detector is provided with an electrode assembly having a neutron sensitive cathode which emits relatively low energy secondary electrons. The neutron sensitive cathode has a large surface area which provides increased sensitivity by intercepting a greater number of neutrons. The cathode is also curved to compensate for differences in transit time of the neutrons emanating from the point source. The slower speeds of the secondary electrons emitted from a certain portion of the cathode are matched to the transit times of the neutrons impinging thereupon.
Claims7
A neutron streak camera electrode assembly for receiving neutrons from a point source of neutrons and providing secondary electrons indicative of said neutrons, comprising:
- a cathode of neutron-sensitive material which emits slower secondary electrons when struck by neutrons from the point source, said cathode having a curved configuration and positioned along an axis with respect to said point source, the cathode being curved so that differences between the arrival times of neutrons, simultaneously emanating from the point source of neutrons but arriving at different times at the cathode, are compensated for by the transit times of the secondary electrons which are emitted from said curved cathode for each neutron striking the cathode;
- an anode having a voltage impressed thereupon for accelerating the secondary electrons emitted by the cathode.
Dependencies are inferred from the claim text.