Scintillating articles and method of making the same

Details Scintillating articles and method of making the same Scintillating articles and method of making the same

1991-04-26

1992-12-01

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385141, 385144, 427 69, G02B 622

Patent

active

051685400

ABSTRACT:
A scintillating article comprising a substrate coated with an inorganic scintillating material comprising a doped or undoped material selected from the group consissting of barium fluoride, calcium fluoride, zinc oxide, zinc sulfide, zinc silicate, bismuth germanate, fast cathode ray tube phosphors, yttrium silicate, rare earth silicates, orthosilicates, and mixtures thereof. Also disclosed is an appertaining method of forming such a scintillating article, comprising depositing the inorganic scintillating material by chemical vapor deposition (CVD). In a particularly advantageous embodiment, the substrate is of fibrous form, e.g., a quartz optical quality fiber, which is coated with a scintillating material such as barium fluoride. The scintillating articles of the invention are usefully employed as detectors for ionizing particles in high energy physics applications, such as radiation track imaging and tracking chambers, calorimetry, synchrotron radiation electron detectors, and pixel detectors for active targets, as well as detector elements and high energy particle accelerators and other high rate systems.

REFERENCES:
patent: 4552431 (1985-11-01), Allemand et al.
patent: 4586785 (1986-05-01), Swinehart
patent: 4626068 (1986-12-01), Caldwell
patent: 4788436 (1988-11-01), Koechner
patent: 4812013 (1989-03-01), Aurouet et al.
patent: 4828354 (1989-05-01), Yoshida
patent: 4940603 (1990-07-01), Soltani
Winn, D. R., et al., "Thin Films of Barium Fluoride Scintillator Deposited by Chemical Vapor Deposition", Nuclear Instruments and Methods in Physics Research A 289 (1990) 261-264, North-Holland.

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