IMAGE INTENSIFIERS FOR NUCLEAR TRACK IMAGING

Journal Article · Wed Jun 01 04:00:00 EDT 1960 · IRE Trans. Nuclear Sci.

DOI:https://doi.org/10.1109/TNS2.1960.4315752· OSTI ID:4128075

Stoudenheimer, R G; Moor, J C; Palmer, H L

The electron image converter is now a proven device for amplifying a light image containing only a few photons per resolved picture element. Two- and three-stage electrostatically focused cascaded image converters were made specifically for the purpose of intensifying the tracks of nuclear particles passing through a scintillation chamber. Gains as high as 50 per stage were obtained with an input equivalent to screen background as low as 10/sup 5/ photons/ cm/sup 2//sec (slightly more than 10/sup 4/ photoelectrons/cm/sup 2// sec). At reduced voltage and gain, backgrounds were equivalent to about 100 electrons/cm/sup 2//sec (the level of the thermionic emission). Scintillations of individual electrons were recognized. With a fast (P15) phosphor for the first screen, the microsecond image storage accompanied by microsecond pulsing of the applied voltage across the second stage made possible complete elimination of tube background in photographs of nuclear tracks. (auth)

• Research Organization: Radio Corp. of America, Lancaster, Penna.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-025709
• OSTI ID: 4128075
• Journal Information: IRE Trans. Nuclear Sci., Journal Name: IRE Trans. Nuclear Sci. Vol. Vol: NS-7, No. 2-3
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BACKGROUND
ELECTRIC POTENTIAL
ELECTROSTATICS
ENGINEERING AND EQUIPMENT
GAIN
IMAGES
LENSES
PARTICLE TRACKS
PHOSPHORS
PHOTOGRAPHY
PHOTOMULTIPLIERS
PHOTONS
SCINTILLATION COUNTERS
SCINTILLATIONS
THERMIONICS