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Imaging Characteristics of Plastic Scintillating Fiber Screens for Digital Mammography

Choi, Won-Young    (Nanoptics, Inc., Gainesville   ); Walker, James K.    (Nanoptics, Inc., Gainesville   ); Jing, Zhenxue    (Department of Rediology, University of Florida  );
  • 초록

    A scanning slot digital mammography system Luing a plastic scintillating fiber screen (SFS) is currently being developed To improve the x-ray interaction efficiency and absorption efficiency of an SFS, high Z elements can be added into the scintillating fiber core. In this paper, we investigated theoretically the zero spatial frequency detective quantum efficiency, DQE(0), and modulation transfer function, MTF(f), of three 2 cm thick SFSs made of polystyrene, polystyrene loaded with 5% by weight of lead, and polystyrene Loaded with 10% by weight of tin scintillating fibers. X-ray interaction efficiency, scintillating light intensity distributions and line spread functions were generated using Monte Carlo simulation. DQE(0) and MTF(f) were computed for x-ray energies ranging from 15 to 50 keV. Loading high Z elements into the SFS markedly increased the DQE(0). For x-ray energies used for mammovaphy, DQE(0) values of both high Z element loaded SFSs are about a factor of three higher than the DQE(0) of an Min-R screen. At mammographic x-ray energies, MTF(f) values of all three SFSs are Venter than 50% at 25 Ip/mm spatial frequency, and were found to be dominated by the 20 um individual scintillating fiber diameter used The results show that both hiP DQE(0) and spatial resolution can be achieved with the high Z element loaded SFSs, which make these SFSs attractive for use in a scanning slot detector for digital mammography.


  • 주제어

    Digital Mammography .   Plastic scintillating fiber .   Swank factor .   Detective quantum efficiency .   Modulation transfer function.  

  • 참고문헌 (11)

    1. Absorption and noise in x-ray phosphors , R. K. Swank , J. Appl. Phys. / v.44,pp.4199-4203,
    2. Imaging performance of a prototype scanned-slot digital mammography system , A. D. A. Maidment;M. J. Yaffe;D. B. Plewes;G. M. Mawdsley;I. C. Soutar;B. G. Starkoski , Proc. SPIE 1896 / v.,pp.93-103,
    3. Quenching of the Scintillation Process in Plastic by Organometallics , Sandler;K. C. Tsou , J. Phys. Chem. / v.68,pp.300-304,
    4. Eastman Kodak Company , Technical Data (2-89) / v.,pp.,
    5. Measurement of absorption and noise in an x-ray image intensifier , R. K. Swank , J. Appl. Phys. / v.45,pp.3673-3678,
    6. Studies of x-ray energy absorption and quantum noise properties of x-ray screens by use of Monte Carlo simulation , H. P. Chan;K. Doi , Med. Phys. / v.11,pp.37-46,
    7. Conversion noise measurement for front and back x-ray intensifying screens , D. P. Trauernicht;R. Van Metter , Proc. SPIE 1231 / v.,pp.262-270,
    8. Design and development of a fiber optic TDI CCD-based slot-scan digital mammography system , E. Toker;M. F. Piccaro , Proc. SPIE 2009 / v.,pp.,
    9. New quench-resistant fluors for liquid scintillation counting , W. Wunderly;J. M. Kauffman , Appl. Radiat. Isot. / v.41,pp.809-815,
    10. Monte Carlo Simulation of Photon Transport Phenomenena: Sampling Techniques , J. F. Williamson;R. L. Morin(ed.) , Monte Carlo Simulation in the Radiological Sciences / v.,pp.53-101,
    11. Image information transfer properties of x-ray fluorescent screens , C. E. Dick;J. W. Motz , Med. Phys. / v.8,pp.337-346,

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