• Title/Summary/Keyword: TSEE

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The Study of TSEE and TSL Phenomena on α-A12O3 Single Crystals Using the 2π Proportional Counter (2π 비례계수기에 의한 α-A12O3 단결정의 TSEE와 TSL 현상에 관한 연구)

  • Doo, Ha-Young;Sim, Sang-Hung
    • Journal of Korean Ophthalmic Optics Society
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    • v.9 no.1
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    • pp.69-73
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    • 2004
  • TSEE and TSL phenomena have been measured for ${\alpha}-Al_2O_3$ single crystals by the use of the $2{\pi}$ proportional counter. The ${\alpha}-Al_2O_3$ crystals irradiated to X-ray and UV for the temperature range from room temperature to about 500k degree. Three peaks of TSEE and three peaks of TSL were observed after X-ray irradiation. Also, two peaks of TSEE and three TSL peaks were observed after UV irradiation. TSEE and TSL glow curves of ${\alpha}-Al_2O_3$ single crystals showed very similar to the peaks position regardless of excitation sorts. Form this work, we knew that the $2{\pi}$ proportional counter is useful to not only the energy spectrum analysis device of ${\alpha}$-particle, but also the measurement instrument of TSEE and TSL.

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Thermally Stimulated Exoelectron Emission from LiF(Mg,Cu,Na,Si) Phosphor (LiF(Mg,Cu,Na,Si)형광체의 열자극엑소전자방출)

  • Doh, Sih-Hong;Jeong, Jung-Hyun;Aoki, M.;Nishikawa, T.;Tamagawa, Y.;Isobe, M.
    • Journal of Sensor Science and Technology
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    • v.3 no.2
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    • pp.11-15
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    • 1994
  • The TSEE characteristics of LiF(Mg,Cu,Na,Si)phosphor for gamma and beta rays are described. The TSEE glow curve of this phosphor showed 5 peaks in the range from $20^{\circ}C$ to $400^{\circ}C$ and its main peak appeared at $240^{\circ}C$. The sensitivity of the phospor for $^{60}Co$ gamma rays was about 450counts/mR. TSEE energy dependence for various beta radiation was nearly constant (${\pm}10%$) in the mean beta particle energy range from 0.02MeV to 0.8MeV. The efficiency of TSEE of the phosphor for beta radiation was $(2{\sim}15){\times}10^{-3}$.

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Preparation of Radiation Detector and Radiation Dosimetry - TSEE Charactristics of LiF ( Mg , Cu , Na , Si ) Phosphor - (방사선 검출기의 제작과 방사선 선량측정 - LIF ( Mg , Cu , Na , Si ) 형광체의 TSEE 특성 -)

  • 도시홍
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.27 no.4
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    • pp.328-331
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    • 1991
  • LiF(Mg,Cu,Na,Si) 형광체의 ${\gamma}$선과 $\beta$선에 대한 TSEE 특성을 조사하였다. 상(60)Co ${\gamma}$선에 대한 감도는 약 450 counts/mR이었고, 여러 가지 $\beta$선에 대한 TSEE 에너지 의존성은 $\beta$입자의 평균에너지 0.02MeV에서 0.8MeV 사이에서 $\pm$10%이었다. 그리고 제작된 형광체 앞면에 7mg.cm 상(-2)의 인체 등가물질을 두 면 입사 $\beta$입자의 에너지에 무관하게 피부 흡수 선량을 측정할 수 있었다.

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A Method of Building an Process Model-based CASE Tool to Support Software Development and Management (소프트웨어 개발관리를 지원하기 위한 프로세스 모델 기반 CASE 도구 구축방법의 제시)

  • Jo, Byeong-Ho;Kim, Tae-Dal
    • The Transactions of the Korea Information Processing Society
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    • v.2 no.5
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    • pp.721-732
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    • 1995
  • The IPSE(Integrated Project Support Environment) tool can be seen as a result of an attempt to synthesize the key aspects of language-centered, specific methodology-based and toolkit oriented environments, which are current CASE tools into an organic whole. The IPSE approach based on a process model is regarded as an effective way to implement integrated CASE. The PM-CASE(Process Model based CASE) tool is currently a prototype which draw diagrams describing processes by using a new modeling technique. Attributes related with a task of withen the process model should be defined an saved the database. These attributed are used to retrieve the information of products, and to call the tool related which the task. In this paper, TSEE(Process centered Software Engineering Environment) tools are compared and analyzed. By describing the basic concept, architecture and design of PM-CASE tool, a method of building an process model-based CASE tool is proposed be support an effect software development and management.

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