Title page for 93222025


[Back to Results | New Search]

Student Number 93222025
Author Jing-yuan Jheng(鄭景元)
Author's Email Address qnaaphy@gmail.com.tw
Statistics This thesis had been viewed 1425 times. Download 1141 times.
Department Physics
Year 2008
Semester 1
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title Simulation on the optically stimulated luminescence based on dynamics and competition model
Date of Defense 2009-01-12
Page Count 71
Keyword
  • OSL TL TLD dose
  • Abstract This study discussed the optical pumping effects by two trapped electrons competition in material. In simulation, quantum probability concept was recruited as the criterion of pumping electronic algorithm and the optical luminescence properties could be obtained by solving the dynamics equations. The result not only indicated the optically stimulated luminescence was dominantly affected by initial trapped concentration, trapped energy levels, the profile of pumping photon energy but to predict the optically stimulated luminescence material's behavior in clean-down electrons process.
    Table of Content 摘 要 ................................................................................................................................................. I
    ABSTRACT .......................................................................................................................................... II
    目 錄 .............................................................................................................................................. III
    圖 目 錄 ................................................................................................................................................ V
    第1章 緒論 ........................................................................................................................................... 1
    1-1 背景 ............................................................................................................................................. 1
    1-2 研究動機 .................................................................................................................................... 3
    1-3 光刺激發光(OSL)簡介 ............................................................................................................... 4
    1-4 OSL 應用 ................................................................................................................................. 7
    1-4-1 人員體外劑量計 ......................................................................................................... 7
    1-4-2 環境劑量偵測 (Environmental dosimetry) ....................................................................... 8
    1-4-3 醫療用計量偵測 (Medical dosimetry) .............................................................................. 8
    1-4-4 回溯計量偵測(Retrospevtive dosimery) ............................................................................ 8
    第2章 理論 ......................................................................................................................................... 10
    2-1 OSL 理論歷史 ............................................................................................................................ 10
    2-1-1 OSL 理論 ............................................................................................................................ 10
    2-1-2 光吸收過程(Optical absorption transition) ....................................................................... 10
    2-2 吸收截面 ................................................................................................................................... 12
    2-3 單陷阱-單中心模型.................................................................................................................. 14
    2-4 激發模式 .................................................................................................................................. 19
    2-4-1 CW-OSL(continuous wave OSL) ...................................................................................... 19
    2-4-2 LM-OSL(linear modulation OSL) ..................................................................................... 20
    2-4-3 POSL (pulsed OSL) .......................................................................................................... 22
    2-4-4 光照TL ................................................................................................................................ 23
    第3章 數值模擬 ................................................................................................................................. 25
    3-1 OSL 理論 ................................................................................................................................... 26
    3-1-1 單競爭模型 ........................................................................................................................ 26
    3-1-2 模擬結果 ............................................................................................................................ 30
    3-2 雙競爭模型 ............................................................................................................................... 38
    3-2-1 理論模型 ............................................................................................................................ 38
    3-2-2 量子機率概念的引入 ............................................................................................................ 39
    3-2-3 模擬結果 .......................................................................................................................... 40
    3-3 討論 .......................................................................................................................................... 45
    第4章 未來展望 ................................................................................................................................. 46
    4-1設計一光電系統 ......................................................................................................................... 46
    可以即時讀出OSL的輻射劑量,並評估其效能。 ...................................................................... 46
    4-1-1 想法 ................................................................................................................................... 46
    4-1-3 驗證溫度效應與環境校正 .............................................................................................. 52
    4-2 CROSS SECTION 比較與驗證 .................................................................................................... 55
    4-3 TRAPS AND CENTERS 的競爭研究 ............................................................................................ 57
    4-4 初步架設 ................................................................................................................................... 59
    附錄 ....................................................................................................................................................... 63
    Reference 參考文獻
    [1]  Paul Suetens, Fundamentals of Medical Imanging, Katholieke Universiteit Leuven, 1edition:2002.
    [2]L. Boetter-Jensen, S. W. S. McKeever, and A. G. Wintle, Optically Stimulated Luminescence Dosimetry, 1 edition ed.: Elsevier Science, 2003.
    [3]  Harold E.Johns, John R. Cunningham, 最新放射物理學The Physics of Radiology, 第四版, 新竹黎明出版社.1985
    [4]  原能會, 游離輻射防護安全標準, 2005.
    [5]D. J. Huntley, D. I. Godfreysmith, and M. L. W. Thewalt, "OPTICAL DATING OF SEDIMENTS," Nature, vol. 313, pp. 105-107, 1985.
    [6 ]  Mott, N.F., Davies, E.A., 1971. Electronic Processes in Non-crystalline Materials. Clarendon Press,Oxford.
    [7]B. G. Markey, L. E. Colyott, and S. W. S. McKeever, "Time-resolved optically stimulated luminescence from α-Al2O3:C," Radiation Measurements, vol. 24, pp. 457-463, 1995.
    [8]S. W. S. McKeever, M. S. Akselrod, and B. G. Markey, "Pulsed Optically Stimulated Luminescence Dosimetry Using Alpha-Al2O3: C," Radiation Protection Dosimetry, vol. 65, pp. 267-272, 1996.
    [9]M. S. Akselrod and S. W. S. McKeever, "A Radiation Dosimetry Method Using Pulsed Optically Stimulated Luminescence," Radiation Protection Dosimetry, vol. 81, pp. 167-175, 1999.
    [10]NCRP, "Limitation of Exposure o Ionizing Radiation.," 1993.
    [11]NCRP, "Use of Personal Monitors to Estimate Effective Dose Equivalent and Effective Dose to Workers for External Exposure to Low-LET Radiation," 1995.
    [12]NCRP, "Radiation Protection Guidance for Activities in Low-Earth Orbit," 2000.
    [13]E. R. Benton and E. V. Benton, "Space radiation dosimetry in low-Earth orbit and beyond," Nuclear Inst. and Methods in Physics Research, B, vol. 184, pp. 255-294, 2001.
    [13]A. J. J. Bos, A. J. M. Winkleman, C. W. Moelker, and W. J. C. Okx, "SEAD: A TLD System for the Determination of Man-Made Photon Doses in a Fluctuating Natural Background," Radiation Protection Dosimetry, vol. 85, pp. 227-232, 1999.
    [14]A. L. Huston, B. L. Justus, P. L. Falkenstein, R. W. Miller, H. Ning, and R. Altemus, "Remote optical fiber dosimetry," Nuclear Inst. and Methods in Physics Research, B, vol. 184, pp. 55-67, 2001.
    [15]A. G. Wintle, Luminescence and ESR Dating and Allied Research: Elsevier Science, 1997.
    [16]V. H. Whitley and S. W. S. McKeever, "Photoionization of deep centers in Al2O3," Journal of Applied Physics, vol. 87, pp. 249-256, 2000.
    [17]E. I. Adirovitch, "La Formule de Becquerel et la Loi Elementaire du Decline de la Luminescence des Phosphores Cristallins," J. Phys. Rad, vol. 17, p. 705, 1956.
    [18]傅利德 and 翁寶山, 熱發光的過程、理論與方法: 新竹黎明書店, 1990.
    [19]E. Bulur and H. Y. G, "Infrared (IR) stimulated luminescence from feldspars with linearly increasing excitation light intensity," Radiation Measurements, vol. 30, pp. 505-512, 1999.
    [20]E. Bulur, L. Botter-Jensen, and A. S. Murray, "Optically stimulated luminescence from quartz measured using the linear modulation technique," Radiation Measurements, vol. 32, pp. 407-411, 2000.
    [21]R. Chen, V. Pagonis, and J. L. Lawless, "The nonmonotonic dose dependence of optically stimulated luminescence in Al[sub 2]O[sub 3]:C: Analytical and numerical simulation results," Journal of Applied Physics, vol. 99, pp. 033511-6, 2006.
    [22]E. G. Yukihara, V. H. Whitley, S. W. S. McKeever, A. E. Akselrod, and M. S. Akselrod, "Effect of high-dose irradiation on the optically stimulated luminescence of Al2O3:C," Radiation Measurements, vol. 38, pp. 317-330, 2004.
    [23]E. G. Yukihara, V. H. Whitley, J. C. Polf, D. M. Klein, S. W. S. McKeever, A. E. Akselrod, and M. S. Akselrod, "The effects of deep trap population on the thermoluminescence of Al2O3:C," Radiation Measurements, vol. 37, pp. 627-638, 2003.
    [24]E. Freytag, "Measurement of high doses with glass dosimeters," Health Phys, vol. 20, pp. 93-4, 1971.
    [25]K. Tesch, "Measurement of Doses Between 10-2 and 10-8 Gy with Glass Dosemeters," Radiat Prot Dosimetry, vol. 6, pp. 347-349, December 1, 1983 1983.
    [26]M. Böhm, E. Pitt, and A. Scharmann, "Uncommon TLD Materials," Radiat Prot Dosimetry, vol. 8, pp. 139-143, March 1, 1984 1984.
    [27]R. Chen and S. W. S. McKeever, Theory of Thermoluminescence and Related Phenomena: World Scientific, 1997.
    [28]J. C. Polf, "A study of optically stimulated luminescence in Al 2 O 3 fibres for the development of a real-time, fiber optic dosimetry system," Ph. D. thesis, Oklahoma State University, USA, 2002.
    Advisor
  • C.W. Hsieh(謝奇文)
  • A.E. Chen(陳鎰鋒)
  • Files
  • 93222025.pdf
  • approve immediately
    Date of Submission 2009-01-19

    [Back to Results | New Search]


    Browse | Search All Available ETDs

    If you have dissertation-related questions, please contact with the NCU library extension service section.
    Our service phone is (03)422-7151 Ext. 57407,E-mail is also welcomed.