发明授权
US06403276B1 Radiographic UV/blue film material and intensifying screen-film combination
失效
射线照相UV /蓝膜材料和强化屏幕膜组合
- 专利标题: Radiographic UV/blue film material and intensifying screen-film combination
- 专利标题(中): 射线照相UV /蓝膜材料和强化屏幕膜组合
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申请号: US09544911申请日: 2000-04-07
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公开(公告)号: US06403276B1公开(公告)日: 2002-06-11
- 发明人: Kathy Elst , Paul Callant , Ann Verbeeck
- 申请人: Kathy Elst , Paul Callant , Ann Verbeeck
- 优先权: EP99201189 19990416
- 主分类号: G03C516
- IPC分类号: G03C516
摘要:
A film material has been provided with emulsions comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range shorter than 420 nm by the presence of at least one blue spectral sensitizer and of at least one azacyanine dye, the formula of which has been given in the description and in the claims. A radiographic screen/film combination or system has also been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 420 nm, ii) said film corresponds with the film material disclosed hereinbefore.
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