• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Characteristic of thermoluminescence in some minerals exposed to the natural radiation and cosmic ray, and its application to meteorites

Research Project

Project/Area Number 02640239
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 核・宇宙線・素粒子
Research InstitutionOsaka Sangyo University

Principal Investigator

FUKUDA Yasunori (1991)  Osaka Sangyo University. Liberal Arts. Professor., 教養部, 教授 (80066943)

長谷川 博一 (1990)  大阪産業大学, 教養部, 教授 (20025232)

Co-Investigator(Kenkyū-buntansha) MORIMOTO Nobuo  Osaka Sangyo University. Liberal Arts. Professor., 教養部, 教授 (10029829)
HASEGAWA Hiroichi  Osaka Sangyo University. Liberal Arts. Professor., 教養部, 教授 (20025232)
福田 和悟  大阪産業大学, 教養部, 教授
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1991: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1990: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsAlkalin feldspars / TL / TL glow peak / anomalous fading / thermal cleaning / natural / X irradiated / emission band / 熱ルミネッセンス特性 / 隕石 / 年代測定
Research Abstract

Thermoluminescence (TL) in alkalin feldspars and whitlockite (beta-Ca_3(PO_4)_2) have been investigated. For heating rate 2OK/min, the TL glow peaks in the natural feldspars appear roughly at the temperature region 200'C - 300'C. In microcline, amazonite, orthoclase, the prominent glow peak is found at about 250. OC - 2700C. On the other hand, the TL glow peaks in X irradiated alkalin feldspars are found at the temper region 800C - 200*C, and the TL glow peaks are not found at the temperature region of natural feldspars.
In X irradiated albite, the TL glow peaks are found at 800C, 1100C, 1700C, 2300C, 3000C by means of the thermal cleaning. The overlap of these TL glow curves may be related to the anomalous fading.
The emission band at about 400nm - 425nm may be due to the AlO^--Al center or AlO_4^<5-> center, and the emission band at 275nm may be related to Pb^+ ions.
The TL emission spectra for Ca_3(PO_4)_2 doped with CeO_2 show a maximum at 350nm for all temperatures during TL measurements. The emission is possibly due to the recombination reaction
Ce^<4+> + e -> Ce^<3+*> -> Ce^<3+> +hnu (350nm).
The TL intensity is changed by Ce^<3+> codoped Tm^<3+>.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] Y.Fukuda,A.Tomita,N.Takeuchi,Y.Kutomi: "Emission Process in Thermally Stimulated Exoelectron Enisson and Thermoluminescence of KCl:Ag Single Crystal" Phys.Stat.Sol(b). 158. 383-387 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Ninagawa,K.Adachi,N.Uchimura,I.Yamamoto,T.Wada,Y.Yamashita,I.Takashima,H.Hasegawa: "Thermduminescence Dating of Calcite Shells in Family Petinidae." Proc.6th.International Specialist Seminar on Thermoluminescence Dating. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukuda: "Thermoluminescence and Thermally Stimulated Exoelectron Emission in Ca_2(PO_4)_2:Ce" Radiation Proteation Dosimetry. 1ー4. 151-156 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukuda,K.Mizuguchi,A.Tomita,.N.Takeuchi: "Thermally Stimulated Exoelectron Emission Sintered C_aB_4O_7 and MgB_4O_7." Aota Universitatis.Wratislaviensis;Matenatyka,Fizyka,Astronomia. LV111. 35-40 (1990)

    • Related Report
      1990 Annual Research Report

URL: 

Published: 1990-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi