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1. 发明授权

US5357118A Radiation image read-out apparatus, radiation image recording method and apparatus, stimulable phosphor sheet, and cassette 失效
标题翻译：辐射图像读取装置，放射线图像记录方法和装置，可激发的荧光体片和盒
公开(公告)号：US5357118A
公开(公告)日：1994-10-18
申请号：US222528
申请日：1994-04-04
申请人： Takayoshi Fukuoka , Satoshi Arakawa , Ikuo Mori
发明人： Takayoshi Fukuoka , Satoshi Arakawa , Ikuo Mori
IPC分类号： G01T1/29 , G03B42/02 , G21K4/00 , G01N23/04 , G03G5/16
CPC分类号： G21K4/00 , G01T1/2014 , G03B42/02 , G21K2004/06
摘要： In a radiation image read-out apparatus, a phosphor sheet (70), represented by the formula Gd.sub.2 O.sub.2 S:Tb.sup.3+, is located facing a stimulable phosphor sheet (10) in such a manner that when it is exposed to x-rays (44) it produces fluorescence (71) having a wavelength that fall within the stimulation wavelength range of the stimulable phosphor. When the stimulable phosphor sheet (10) is exposed to the fluorescence (71), part of the energy stored on the layer of stimulable phosphor during its exposure to the x-rays (44) is released. In this manner, the stimulable phosphor sheet (10) is approximately simultaneously subjected to the operation for recording the radiation image and the operation for slightly erasing the energy store thereon during its exposure to the x-rays (44).
摘要翻译：在放射线图像读取装置中，以公式Gd 2 O 2 S：Tb 3+表示的荧光体片（70）以与暴露于x射线（44）的方式相对的可激发荧光体片（10）定位，它产生具有落入可刺激的磷光体的刺激波长范围内的波长的荧光（71）。当可刺激的荧光体片（10）暴露于荧光（71）时，释放在其暴露于x射线（44）期间存储在可刺激磷光体层上的能量的一部分。以这种方式，可刺激的荧光体片（10）在暴露于X射线（44）期间大致同时进行用于记录放射线图像的操作和用于稍微擦除其上的能量存储的操作。

2. 发明授权

US4195996A Method of recording radiation image 失效
标题翻译：记录辐射图像的方法
公开(公告)号：US4195996A
公开(公告)日：1980-04-01
申请号：US881944
申请日：1978-02-28
申请人： Yosuke Nakajima , Yoshiyuki Hoshi , Takayoshi Fukuoka
发明人： Yosuke Nakajima , Yoshiyuki Hoshi , Takayoshi Fukuoka
IPC分类号： G03C7/00 , G03C5/16 , G03C7/26 , G03C7/30 , G21K4/00 , G03C1/92
CPC分类号： G03C7/30 , G03C5/16
摘要： A method of recording a radiation image having excellent sharpness which comprisesimage-wise exposing to radiation, in combination with the use of a fluorescent intensifying screen, a light-sensitive photographic element comprising a water-proof opaque support, which has an average degree of reflection of about 70 percent or greater, based on the degree of reflection of a magnesium oxide white plate being 100%, in the spectral wavelength region of from about 380 m.mu. to about 600 m.mu., and having on only one surface thereof a coating of a green sensitized silver halide photographic emulsion containing a phenolic color coupler or an .alpha.-naphtholic color coupler, each capable of forming a quinoneimine dye having a maximum absorption within a spectral wavelength region of about 550 m.mu. to about 700 m.mu. on color development, where the silver halide grains of the emulsion have a number average grain size of about 0.5.mu. to about 2.2.mu. and are present in an amount of from about 0.5 g to about 3 g of silver per m.sup.2, andthen subjecting the image-wise exposed light-sensitive photographic element to a color development processing with a phenylene diamine color developing agent and without a silver-removal step.
摘要翻译：一种记录具有优异清晰度的放射线图像的方法，其包括使用荧光增强屏幕结合使用荧光增强屏幕的成像曝光至辐射的光敏照相元件，所述感光照相元件具有平均度为在约380μm至约600μm的光谱波长区域中，基于氧化铝白板的反射度为100％，反射约70％或更大，并且在其一个表面上仅具有涂层的含有酚颜色成色剂或α-萘色成色剂的绿色敏化卤化银照相乳剂，每种能够形成在显色发展的约550μm至约700μm的光谱波长范围内具有最大吸收的醌亚胺染料，其中乳液的卤化银颗粒的数均粒度为约0.5μm至约2.2μm，并且以约0.5g的量存在至约3g的银，然后使用苯二胺彩色显影剂对图像曝光的感光照相材料进行显色处理，并且不进行银除去步骤。

3. 发明授权

US5340996A Radiation image read-out apparatus, radiation image recording method and apparatus, stimulable phosphor sheet, and cassette 失效
标题翻译：辐射图像读取装置，放射线图像记录方法和装置，可激发的荧光体片和盒
公开(公告)号：US5340996A
公开(公告)日：1994-08-23
申请号：US5866
申请日：1993-01-15
申请人： Takayoshi Fukuoka , Satoshi Arakawa , Ikuo Mori
发明人： Takayoshi Fukuoka , Satoshi Arakawa , Ikuo Mori
IPC分类号： G01T1/29 , G03B42/02 , G21K4/00 , G01N23/04
CPC分类号： G21K4/00 , G01T1/2014 , G03B42/02 , G21K2004/06
摘要： In a radiation image read-out apparatus, a stimulable phosphor sheet, which has been exposed to radiation which has passed through an object whose radiation absorptivity is basically distributed with predetermined characteristics, is exposed to stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to the radiation. The light, which is emitted by the portion of the stimulable phosphor sheet exposed to the stimulating rays, is detected with a photoelectric read-out device, and an image signal representing a radiation image of the object is thereby obtained. An optical filter is located between the stimulable phosphor sheet and the photoelectric read-out device such that the position of the optical filter corresponds to the position of the radiation image of the object stored on the stimulable phosphor sheet. The transmittance of the optical filter with respect to the light emitted by the stimulable phosphor sheet is distributed such that a basic difference in the radiation absorptivity of the object is compensated for.
摘要翻译：在放射线图像读取装置中，暴露于已经通过其辐射吸收率基本上分布有特定特征的物体的辐射的可刺激的荧光体片材暴露于刺激的光线，使得可刺激的荧光体片材发光与在其暴露于辐射期间存储在其上的能量的量成比例。用光电读出装置检测由暴露于刺激光线的可刺激荧光粉片部分发射的光，从而获得表示物体的辐射图像的图像信号。光学滤光器位于可激发的荧光体片和光电读出装置之间，使得滤光器的位置对应于存储在可刺激的荧光体片上的物体的放射线图像的位置。滤光器相对于由可刺激的荧光体片发射的光的透射率被分布成使得物体的辐射吸收率的基本差异得到补偿。

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