Low intensity X-ray and gamma-ray spectrometer

Details Low intensity X-ray and gamma-ray spectrometer Low intensity X-ray and gamma-ray spectrometer

1980-07-30

1982-08-17

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

G01T 120

Patent

active

043451535

ABSTRACT:
A low intensity X-ray and gamma-ray spectrometer 10 is disclosed for imaging, counting, and energy resolving of single invisible radiation particles. Spectrometer 10 includes a converting device 20 for converting single invisible radiation particles to visible light photons. Another converting device 24 converts the visible light photons to photoelectrons. A fiber optics coupling device 22 couples together converting devices 20 and 24. An intensifying device 26 intensifies the photoelectrons by an average gain factor of substantially 10.sup.4 -10.sup.7. Intensifying device 26 is an anti-ion feedback microchannel plate amplifier which is operated substantially below saturation. A displaying device 32 displays the intensified photoelectrons. Displaying device 32 indicates the spatial position, number, and energy of the incoming single invisible radiation particles.

REFERENCES:
patent: 4142101 (1979-02-01), Yin
patent: 4272678 (1981-06-01), Lange
Lecomte et al., "Channel Electron Multipliers: Properties, Development and Applications," IEEE Trans. on Nuclear Science, vol. NS-25, No. 2, Apr. 1978, pp. 964-973.

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