JPS608384A - Activation of fluorescence of alkali halide with nitrogen - Google Patents

Activation of fluorescence of alkali halide with nitrogen

Info

Publication number
JPS608384A
JPS608384A JP11642683A JP11642683A JPS608384A JP S608384 A JPS608384 A JP S608384A JP 11642683 A JP11642683 A JP 11642683A JP 11642683 A JP11642683 A JP 11642683A JP S608384 A JPS608384 A JP S608384A
Authority
JP
Japan
Prior art keywords
crystal
light ray
fluorescence
alkali halide
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11642683A
Other languages
Japanese (ja)
Inventor
Isao Miyake
功 三宅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP11642683A priority Critical patent/JPS608384A/en
Publication of JPS608384A publication Critical patent/JPS608384A/en
Pending legal-status Critical Current

Links

Landscapes

  • Luminescent Compositions (AREA)

Abstract

PURPOSE:To convert crystal into a fluorescent substance, by keeping an alkali halide crystal in a high-temperature and high-pressure N2 gas for a long time. CONSTITUTION:For example, pure calcium chloride crystal and a dried N2 gas at 1 atmospheric pressure are put in an ampoule heated upto 600 deg.C and kept 24hr. The pressure of N2 gas in the ampoule is about 3 atmospheric pressure. When the treated crystal is irradiated with about 266nm light ray, it emits 400nm light ray. When the crystal irradiated with X-rays, and then with about 550nm light ray, it emits about 450nm light ray.

Description

【発明の詳細な説明】 本発明はアルカリハライド結晶を・、高温、高圧の窒素
気体中に長時間おくことで結晶を螢光体にする方法であ
る。上記の処理をすると結晶は励起光照射により螢光を
発する。又、この結晶にＸ−線等の放射線を当てると、
異なった波長の励起光で異なった波長の螢光を発する様
になる。上記の螢光はいずれも未処理の結晶では得られ
ない、螢光機構については未だ明らかではないが、純粋
のアルカリハうイドを窒素気体中の熱処理で新うたな伯
光体として実用にする可能性が生じる。ここで本発明の
実施例を示す、純粋な塩化カリウム結晶を乾燥した１気
圧の窒素気体とともにアンプル中に入れ６００Ｃまで温
度を上げて２４時間保つ、このときアンプル中の窒素気
体の圧力は約３気圧になっている、この処理をした結晶
に２６６ｎｍ附折の光を当てると４００ｎｍの光を出す
、又、この結晶に、を射線（Ｘ線）を当てた後、５５０
ｎｍ附近の光を当てると４５０ｎｍ附近の光を出す。DETAILED DESCRIPTION OF THE INVENTION The present invention is a method of turning an alkali halide crystal into a phosphor by leaving it in nitrogen gas at high temperature and high pressure for a long period of time. When subjected to the above treatment, the crystal emits fluorescence when irradiated with excitation light. Also, when this crystal is exposed to radiation such as X-rays,
Fluorescence of different wavelengths is emitted by excitation light of different wavelengths. None of the above fluorescence can be obtained from untreated crystals, and the mechanism of fluorescence is still unclear, but it is possible that pure alkali hydride can be put to practical use as a new phosphor by heat treatment in nitrogen gas. Gender arises. Here, an example of the present invention is shown in which pure potassium chloride crystals are placed in an ampoule with dry nitrogen gas at 1 atm and the temperature is raised to 600C and kept for 24 hours.At this time, the pressure of the nitrogen gas in the ampoule is about 3 When this treated crystal under atmospheric pressure is exposed to 266 nm light, it emits 400 nm light;
When exposed to light around nm, it emits light around 450 nm.

特許出願人　三　宅　功Patent applicant Isao Sanyake

Claims (1)

【特許請求の範囲】[Claims] アルカリハライド結晶を窒素気体中で熱処理をして螢光
物質にする方法A method of heat-treating alkali halide crystals in nitrogen gas to turn them into fluorescent materials.
JP11642683A 1983-06-28 1983-06-28 Activation of fluorescence of alkali halide with nitrogen Pending JPS608384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11642683A JPS608384A (en) 1983-06-28 1983-06-28 Activation of fluorescence of alkali halide with nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11642683A JPS608384A (en) 1983-06-28 1983-06-28 Activation of fluorescence of alkali halide with nitrogen

Publications (1)

Publication Number Publication Date
JPS608384A true JPS608384A (en) 1985-01-17

Family

ID=14686794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11642683A Pending JPS608384A (en) 1983-06-28 1983-06-28 Activation of fluorescence of alkali halide with nitrogen

Country Status (1)

Country Link
JP (1) JPS608384A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144080U (en) * 1984-08-24 1986-03-24 株式会社トキメック electric switching valve
JPS62119580U (en) * 1986-01-22 1987-07-29
US5250819A (en) * 1991-04-15 1993-10-05 Canon Kabushiki Kaisha Light emitting device having stepped non-nucleation layer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144080U (en) * 1984-08-24 1986-03-24 株式会社トキメック electric switching valve
JPH0343501Y2 (en) * 1984-08-24 1991-09-11
JPS62119580U (en) * 1986-01-22 1987-07-29
JPH0314615Y2 (en) * 1986-01-22 1991-04-02
US5250819A (en) * 1991-04-15 1993-10-05 Canon Kabushiki Kaisha Light emitting device having stepped non-nucleation layer

Similar Documents

Publication Publication Date Title
Merz et al. Charge conversion of irradiated rare-earth ions in calcium fluoride. I
Delbecq et al. Trapping and annihilation of electrons and positive holes in KCl-TlCl
Baldacchini et al. Optical bands of F2 and F3+ centers in LiF
JPS62501251A (en) Solid state laser using diamond with color center as laser active material
Casler et al. Stability of Color Centers in Alkali Halides
JP2013047179A (en) High temperature/high pressure color change of diamond
JPS608384A (en) Activation of fluorescence of alkali halide with nitrogen
Lushchik et al. Thermalized and hot interstitial halogen ions in alkali halides
Rossiter et al. Preparation of thermoluminescent lithium fluoride
Grabovskis et al. Tunneling recombination luminescence in KBr and KCl
JP2022015867A (en) Optical heating device and heat treatment method
Thomas et al. Correlation of optical absorption and thermoluminescence curves for single crystals of magnesium oxide
RU2293603C2 (en) Method of change of diamond color at high temperature and high pressure
NO141508B (en) FLOATING JACKET.
Coahran et al. The effect of ultraviolet irradiation on nucleic acid isolated from tobacco mosaic virus
Kovaleva et al. Formation of color centers in yttrium orthoaluminate crystals
Antonyak et al. High-energy electronic excitations and radiation defects in SrCl2 crystals
Elsässer et al. Optical Spectra of M, F‐Singlet, and F‐Triplet Centres in NaF
Herley et al. THE THERMAL DECOMPOSITION OF RUBIDIUM PERMANGANATE
Kristianpoller et al. Optically stimulated luminescence in synthetic quartz
JPH0729844A (en) Infrared heating method and equipment for semiconductor substrate
RU2547109C2 (en) Method of producing positive luminescent image on light-sensitive layer
Saksena et al. Cathodo-luminescence of MgO
Mehendru Effects of Heat Treatment and Background Divalent Cation Impurity on the Growth of F Centers in Highly Pure KCl Crystals
Damm et al. The Influence of Plastic Deformation on Thermal Bleaching of Colour Centres in Potassium Chloride Crystals Irradiated by γ Rays