JPS54139895A - Thermoluminous phosphor and thermoluminous dosimeter element - Google Patents

Thermoluminous phosphor and thermoluminous dosimeter element

Info

Publication number
JPS54139895A
JPS54139895A JP4745578A JP4745578A JPS54139895A JP S54139895 A JPS54139895 A JP S54139895A JP 4745578 A JP4745578 A JP 4745578A JP 4745578 A JP4745578 A JP 4745578A JP S54139895 A JPS54139895 A JP S54139895A
Authority
JP
Japan
Prior art keywords
thermoluminous
phosphor
caf
atmosphere
srf
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.)
Granted
Application number
JP4745578A
Other languages
Japanese (ja)
Other versions
JPS6123837B2 (en
Inventor
Shusaku Eguchi
Chiaki Kataoka
Keiji Shinomiya
Norio Miura
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.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo KK
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 Dai Nippon Toryo KK filed Critical Dai Nippon Toryo KK
Priority to JP4745578A priority Critical patent/JPS54139895A/en
Publication of JPS54139895A publication Critical patent/JPS54139895A/en
Publication of JPS6123837B2 publication Critical patent/JPS6123837B2/ja
Granted legal-status Critical Current

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  • Measurement Of Radiation (AREA)
  • Luminescent Compositions (AREA)

Abstract

PURPOSE: To obtain a thermoluminous phosphor exhibiting thermoluminous characteristics of high sensitivity than that of a known alkaline earth metal fluoride thermoluminous phosphor by activating CaF2 or/and SrF2 as base material with one or more kinds of rare earth elements.
CONSTITUTION: CaF2 or/and SrF2 and one or more kinds of cpds. of Tb, Pr, Tm, Ho, Sm and Ce easily convertible into their oxides, e.g. fluorides, nitrates and chlorides are weighed so that the mixed compsn. formula is satisfied stoichiometrically, and they are mixed well with a ball mill or the like. In the formula it is desirable to be 5×10-4≤a≤2×10-3. The raw material mixt. is then filled in an alumina crucible or the like and calcined in a carbon atmosphere or a weakly reducing atmosphere such as H2-contg. N2 atmosphere at 600W1100°C. The resulting thermoluminous phosphor (TL phosphor) includes CaF2: 0.0008Pr. This TL phosphor is used in a thermoluminous dosimeter element (TLD element) to give a TLD element of high sensitivity.
COPYRIGHT: (C)1979,JPO&Japio
JP4745578A 1978-04-21 1978-04-21 Thermoluminous phosphor and thermoluminous dosimeter element Granted JPS54139895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4745578A JPS54139895A (en) 1978-04-21 1978-04-21 Thermoluminous phosphor and thermoluminous dosimeter element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4745578A JPS54139895A (en) 1978-04-21 1978-04-21 Thermoluminous phosphor and thermoluminous dosimeter element

Publications (2)

Publication Number Publication Date
JPS54139895A true JPS54139895A (en) 1979-10-30
JPS6123837B2 JPS6123837B2 (en) 1986-06-07

Family

ID=12775613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4745578A Granted JPS54139895A (en) 1978-04-21 1978-04-21 Thermoluminous phosphor and thermoluminous dosimeter element

Country Status (1)

Country Link
JP (1) JPS54139895A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007045870A (en) * 2005-08-08 2007-02-22 Stella Chemifa Corp Fluoride scintillator material having low hygroscopicity and high amount of emission, radiation detector and x-ray ct apparatus
EP2636646A1 (en) * 2010-11-02 2013-09-11 Tokuyama Corporation Metal fluoride eutectic, scintillator for neutrons, and neutron imaging device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007045870A (en) * 2005-08-08 2007-02-22 Stella Chemifa Corp Fluoride scintillator material having low hygroscopicity and high amount of emission, radiation detector and x-ray ct apparatus
EP2636646A1 (en) * 2010-11-02 2013-09-11 Tokuyama Corporation Metal fluoride eutectic, scintillator for neutrons, and neutron imaging device
EP2636646A4 (en) * 2010-11-02 2014-03-05 Tokuyama Corp Metal fluoride eutectic, scintillator for neutrons, and neutron imaging device
US9068114B2 (en) 2010-11-02 2015-06-30 Tokuyama Corporation Metal fluoride eutectic, neutron scintillator and neutron imaging device

Also Published As

Publication number Publication date
JPS6123837B2 (en) 1986-06-07

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