Radiant energy – Fluent material containment – support or transfer means – With irradiating source or radiating fluent material
Patent
1975-02-24
1976-06-29
Church, Craig E.
Radiant energy
Fluent material containment, support or transfer means
With irradiating source or radiating fluent material
250492B, H01J 3700
Patent
active
039671259
ABSTRACT:
A method of preparing a phosphor by injection of activator ions which become luminescent centers into crystals of a base material of the phosphor comprising the steps of generating ions of an activator, accelerating the activator ions by giving kinetic energy thereto, irradiating and injecting the accelerated activator ions into the base material, and agitating the base material.
An apparatus for preparing phosphor according to the method of the invention comprises an activator ion source section having an ion generating section for generating activator ions and an ion accelerating electrode section for accelerating and irradiating the generated activator ions into the base material of the phosphor, a base activating vessel section having an agitating means for containing the base material of the phosphor and for continuously circulating the same therein in order to uniformly irradiate the accelerated activator ions into the base material of the phosphor, and a vacuum system for providing a low-pressure atmosphere at least to the activator ion source section and the base activating vessel section.
REFERENCES:
patent: 2992329 (1961-07-01), Jeppson
patent: 3835327 (1974-09-01), Lawrence
Morimoto Kiyoshi
Takagi Toshinori
Utamura Yukihiko
Church Craig E.
Futaba Denshi Kogyo K.K.
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