Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Thermal Neutron Radioscopy

この論文にアクセスする

この論文をさがす

著者

抄録

The purpose of this study was to study the influence of scattered neutrons on void fraction measurement of two-phase flow using thermal neutron radioscopy and to develop a practical correction method for scattered neutrons. Experimental and analytical studies resulted in the followings. (1) It was confirmed that neutrons scattered in the object could be smoothed out by taking an appropriate distance between the object and the converter. The distance was roughly estimated to be greater than the object width and was independent of the object thickness. The maximum distance was estimated to be the product of the spatial-resolution and L/D ratio of the neutron radiography facility in view of the image unsharpness due to unparallelness of an incident neutron beam. (2) The previously proposed method for correcting scattered neutrons (∑-scaling method) was verified experimentally. (3) In such a system that neutrons scattered in surrounding shields cannot be ignored, it was pointed out analytically that void fraction measured without no corrections of scattered neutrons might include a large measurement error. This measurement error depended on the void fraction, the object material, and the flux of scattered neutrons.

収録刊行物

  • Journal of nuclear science and technology

    Journal of nuclear science and technology 34(10), 996-1005, 1997-10-25

    Atomic Energy Society of Japan

参考文献:  26件中 1-26件 を表示

  • <no title>

    BARTON J. P.

    Proc. 5th Int. Symp. Advaned Nucl. Energy Res. 125, 1993

    被引用文献1件

  • <no title>

    AKIYAMA M.

    Thermal Sci. Eng. 3, 2, 1995

    被引用文献1件

  • <no title>

    von der HARDT P.

    Neutron Radiography Handbook, 1981

    被引用文献6件

  • <no title>

    MISHIMA K.

    Int. J. Multiphase Flow 19, 115, 1993

    被引用文献1件

  • <no title>

    MISHIMA K.

    Int. J. Multiphase Flow 22, 702, 1996

    被引用文献1件

  • <no title>

    MISHIMA K.

    Annu. Rep Res. Reactor Inst. Kyoto Univ. 27, 245, 1994

    被引用文献1件

  • <no title>

    IWAMURA T.

    Nucl. Eng. Des. 149, 195, 1994

    被引用文献1件

  • <no title>

    MISHIMA K.

    Nucl. Eng. 41, 46, 1995

    被引用文献1件

  • <no title>

    KOBAYASHI H.

    Ionizing Radiat. 22, 3, 1996

    被引用文献1件

  • <no title>

    TAMAKI M.

    Neutron Radiography (4) 837, 1994

    被引用文献1件

  • <no title>

    KOBAYASHI H.

    Neutron Radiography (3) 903, 1990

    被引用文献1件

  • <no title>

    MURATA Y.

    Neutron Radiography (4) 583, 1994

    被引用文献1件

  • <no title>

    HRDLLICKA Z.

    Neutron Radiography (3) 131, 1990

    被引用文献1件

  • <no title>

    KOBAYASHI H.

    J. Nucl. Sci. Technol. 29, 1045, 1992

    被引用文献3件

  • <no title>

    TAKENAKA N.

    Nucl. Instrum. Methods, Phys. Res. A377, 153, 1996

    被引用文献1件

  • <no title>

    MOCHIKI K.

    Ionizing Radiat. 22, 27, 1996

    被引用文献1件

  • Radiation detectors and their uses

    KOBAYASHI H.

    KEK Proc. 93-8 174, 1993

    被引用文献1件

  • <no title>

    MATSUBAYASHI M.

    Neutron Radiography (4) 415, 1994

    被引用文献1件

  • <no title>

    HIBIKI T.

    J. Nucl. Sci. Technol. 30, 516, 1993

    被引用文献1件

  • <no title>

    HIBIKI T.

    Nucl. Technol. 110, 422, 1995

    被引用文献2件

  • <no title>

    YOSHII K.

    Nucl. Instrum. Methods, Phys. Res. A377, 76, 1996

    被引用文献1件

  • <no title>

    HKBIKI T.

    Trans. JSME, Ser. B. 62, 919, 1996

    被引用文献1件

  • <no title>

    ODA M.

    Nucl. Instrum. Methods, Phys. Res. A377, 72, 1996

    被引用文献1件

  • <no title>

    KOBAYASHI H.

    Nucl. Instrum. Methods, Phys. Res. A377, 80, 1996

    被引用文献1件

  • <no title>

    HIBIKI T.

    Nucl. Instrum. Methods, Phys. Res. A388, 204, 1997

    被引用文献1件

  • <no title>

    TAKENAKA N.

    Fusion Eng. Des. 27, 607, 1995

    DOI 被引用文献1件

各種コード

  • NII論文ID(NAID)
    10002078287
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4326334
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ