Browse Prior Art Database

Image Intensifier

IP.com Disclosure Number: IPCOM000080883D
Original Publication Date: 1974-Feb-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Dreyfus, RW: AUTHOR

Abstract

A device has been provided for changing the geometry of plastic scintillators, so as to make them more efficient sensors of electrons and short wavelength ultraviolet light.

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Image Intensifier

A device has been provided for changing the geometry of plastic scintillators, so as to make them more efficient sensors of electrons and short wavelength ultraviolet light.

A number of individual plastic scintillators 2, capable of being molded into various shapes, are fused into a bundle. Specified regions 4 of each pipe have fluorescent material 6 incorporated therein, so that when such regions are exposed to a beam of electrons 8 or ultraviolet light, such regions scintillate and the scintillations travel upwards of the scintillator or exit at the end 10 of the scintillator. The scintillating light that travels upwardly will hit the silvered surface 12, the latter reflecting the scintillating light back towards the transmitting end 10 of the scintillator.

A cylindrical lens 14 captures the light emanating from the bundle of optical fibers and focuses it upon a screen 16. The latter could be a streak camera that records or displays the intensity changes of a light source as a function of time. Thus, a 10 millimeter high beam of ultraviolet can be condensed to an output beam that is only 0.1 mm high, achieving a 100 fold increase in intensity. The geometry of the output ends 10 may be changed to achieve different light- focussing effects.

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