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1992 Fiscal Year Final Research Report Summary

Development of measuring system for highly sensitive thermoluminescence applicable to young age determination

Research Project

Project/Area Number 03554023
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 分析・地球化学
Research InstitutionNIIGATA UNIVERSITY

Principal Investigator

HASHIMOTO Tetsuo  Niigata Univ., Faculty of Science, Professor, 理学部, 教授 (50027439)

Project Period (FY) 1991 – 1992
KeywordsThermoluminescence / Age determination / Quartz grains / Highly sensitive TL-measurement / Contour indication / TL-spectrometry / Rapid spectrometry / Imaging analysis
Research Abstract

For the confirmation of reliable thermoluminescence (TL) dating toward young age, some basic research has been developed from both aspects of TL-spectrometry using an image intensified diode array unit and the development of highly sensitive TL-measuring system.
In the former case, the file data, consisting of about 1 Mbite or more, from the spectrometric system were converted from binary into decimal code along with shortening data sizes. The final three dimensional TL-spectrum, comprising of wavelengths, temperatures, and TL-intensities, could be displayed as a contour map; one could easily recognize the change of TL-spectra for a variety of weak TL-specimens. Furthermore, the file data could be used for the presentation of glow-curves and spectrum in the desired wavelength and temperature regions.
In the latter, the simultaneous TL-measuring (IPDA) system in blue-and red-regions has been developed for the reliable gelogical age determination as well as archeological dating using two p … More hoton-counting parts, a newly devised heater installed with a quartz glass and two ceramics heaters, and a computer as a system control part. The application of a light pipe between the heater and a photomultiplier extremely served the effective collection of weak TL-emission until several times in detection sensitivity. By using the present TL-measuring system, the kinetic parameters regarding a single TL-peak at 320゚C of the natural quartz grains were determined in both blue-and red-regions. The results after best-curve fitting procedure to glow-curves utilized for the evaluation of mean lives of the trapped electrons.
Moreover, the TL-properties were analyzed using both IPDA spectrometry and TLCI-method after thermally annealing treatment of originally blue-TL Z-cut quartz slices; an apparent color change from blue-to red-TL has unexpectedly occurred in some parts of slices after annealing treatment beyond 900゚C. This interesting result should suggested with respect of some information about causes of red-TL on natural quartzes, which has been initially found in our laboratory. Less

  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] T.HASHIMOTO(橋本 哲夫): "Autoradiograpic obmntion of Al-,Mn-,Na-distnbatren onvock slice using noution aetiratoan-induced radooaetivslg and prefemtial utiligation of inaging plate as its alternatine deteetor" Radioisotopes. 41. 618-626 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO(橋本 哲夫): "Prinesple of single and multiple time interval analysis applocable to radooactire naolides with half-life of mitli scond ovder" J.Radioanal.Nucl.Chem.Art.159. 375-387 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO(橋本 哲夫): "Activation energies from blue-and red-TL of guartq grains and mean lives of trapped oleetrens related to nodural red-TL" Nucl.Traeho Radoat.Meas.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO: "Depondance of red-thermoluminescance on Eu-anomaly in natural guartqes" Nucl.Tracks Radoat.Meas.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO: "Dsteetion sensitority of time iuterval analysis for the determination of α-radiormclides with milli-second order lives" J.Radioanal.Nucl.Chem.Art.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 橋本 哲夫: "天然鉱物の放射線由来のルミネッセンススペクトル" Radioisotopes. 42. 201-202 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 橋本 哲夫(分体執筆): "第4版実験化学講座14 3・4微弱放射能測定技術" 丸善, 550(65) (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO(分担執筆): "“Handbook of Hot Atom Chemistry"5・5Luminescence from irvidirteel nater,5・7α-recoil damage and HAC" KODANSHA, 500(15) (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.HASHIMOTO(分担執筆): "“Handbook of Hot Atom Chemistry"5・7α-recoil damage and HAC" KODANSHA, 448(15) (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Hashimoto, S.Sakaue, M.Kojima, T.Sakai: "New after-glow color images from some rock slices irradiated with gamma-rays:" Radioisotopes. 40. 219-225 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, T.Sakai, N.Shirai, S.Sakaue, M.Kojima: "Thermoluminescent spectrum changes of natural quartzes dependent on annealing treatment and aluminium-contents;" Anal, Sciences. 7. 687-690 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, Y.Uezu, Y.Yamamoto, H.Washio, M.Noguchi: "Principle of single and multiple time interval analysis applicable to radioactive nuclides with half-life of milli-second order;" J.Radioanal. Nucl. Chem. Articles. 159. 375-387 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, S.Sakaue, H.Ohira: "Autoradiographic observation of Al-, Mn-, Na-distribution on rock slice using neutron activation-induced radioactivity and preferential utilization of imaging plate as its alternative detector." Radioisotopes. 41. 618-626 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, M.Kojima, N.Shirai, M.Ichino: "Activation energies from blue-and red-TL of quartz grains and mean lives of trapped electrons related to natural red-TL;" Nucl. Tracks Radiat. Measur.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, K.Yokosaka, S.Notoay, T.Ojima, S.Sakaue: "Dependence of red-thermoluminescence on Eu-anomaly in natural quartzes;" Nucl, Tracks Radiat. Measur.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto, Y.Uezu, F.Ishizuka, H.Washio: "Detection sensitivity of time interval analysis for the determination of alpha-radionuclides with milli-second order lives:" J.Radioanal. Nucl. Chem. Articles.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto: "5-7 alpha-recoil damage and HAC:" ゙Handbook of Hot Atom Chemistry゙ (edited by J.P.Adloff and T.Matsuura) Kodansha. 443-448 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.J.Arnikar, S.F.Patil, T.Hashimoto: "5-5 Luminescence from irradiated materials:" ゙Handbook of Hot Atom Chemistry゙ (edited by J.P.Adloff and T.Matsuura) Kodansha. 423-433 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hashimoto: "Spectrum of radiation-induced luminescence from natural minerals (in Japanese)" Radioisotopes. 42. 201-202 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Sakamoto, K.Komura, T.Nakanishi, T.Hashimoto: "3.4 Measuring techniques of low level radioactivities" Jikkennkagaku Kouza (4th edition) Maruzen, Tokyo. (1992)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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