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KMID : 0371519950180000091
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Bulletin of Wonkwang Health College
1995 Volume.18 No. 0 p.91 ~ p.101
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Study on Structure and Physical Characteristics of Anti-Scatter Grid
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이만구/Lee, M.K.
윤한식/이종석/손지영/이혜남/Yoon, H.S./Lee. J.S/Son, J.Y./Lee, H.N.
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Abstract
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We measured the transmission of primary radiation, scattered radiation and total radiation of grids(8:1 10:1, 12:1, 14:1, 16:1) by a fluorescence meter, when the phantom is a 15cm thick water, and tube voltages are.80kV, 100kV, 120kV, 140kV.
Then, physical characteristics(selectivity, contrast improvement factor, grid exposure factor) are calculated by these transmission.
For user of grid, contrast -improvement factor, and grid exposure factor are especially important, and the result indicate that high ratio grid, without an increase in grid exposure factor.
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KEYWORD
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