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    • 1. 发明授权
    • Autoradiographic process
    • 放射自显影过程
    • US06066858A
    • 2000-05-23
    • US982102
    • 1997-11-17
    • Motoko KawasakiKatsumi HayashiMasashi HakamataKeiji Mori
    • Motoko KawasakiKatsumi HayashiMasashi HakamataKeiji Mori
    • G01N33/60G03B42/00
    • G01N33/60
    • An autoradiographic process for obtaining locational information on two or more radioactively labeled substances which have different energy or half-life and are contained in a sample such as tissue of an organism. Specifically, the process includes the steps of placing the sample on a stimulable phosphor sheet having a plastic cover layer to cause the stimulable phosphor to absorb radiation energy of the labeled substances and reading the absorbed radiation energy out of the phosphor to obtain an image signal corresponding to one radioactively labeled substance and placing the sample on a stimulable phosphor sheet having a thinner plastic cover layer or no cover film to cause the stimulable phosphor to absorb radiation energy of the labeled substances and reading the absorbed radiation energy out of the phosphor to obtain image signals corresponding to plural radioactively labeled substances. Then, the process includes the step of subjecting the image signals of (a) and (b) to subtraction processing so that image signals corresponding to plural radioactively labeled substances can be separately obtained.
    • 一种放射自显影方法,用于获得具有不同能量或半衰期并且包含在诸如生物体的组织的样品中的两种或更多种放射性标记物质的位置信息。 具体而言,该方法包括以下步骤:将样品放置在具有塑料覆盖层的可刺激的荧光体片上,以使可刺激的荧光体吸收标记物质的辐射能量并从磷光体中读出吸收的辐射能量,以获得相应的图像信号 一种放射性标记的物质,并将样品放置在具有较薄塑料覆盖层或不具有覆盖膜的可刺激的荧光粉片上,以使可刺激的荧光体吸收标记物质的辐射能并从磷光体中读出吸收的辐射能量以获得图像 对应于多个放射性标记物质的信号。 然后,该处理包括对(a)和(b)的图像信号进行减法处理,从而可以分别获得与多个放射性标记物质对应的图像信号。
    • 3. 发明授权
    • Radiation image read-out method and apparatus
    • 辐射图像读出方法和装置
    • US06707058B2
    • 2004-03-16
    • US10022807
    • 2001-12-20
    • Taizo AkimotoMasashi Hakamata
    • Taizo AkimotoMasashi Hakamata
    • G02B2602
    • G03B42/08
    • A stimulable phosphor sheet stored thereon a radiation image is two-dimensionally scanned by a stimulating light beam by projecting the light beam along a main scanning line extending in a main scanning direction and moving one of the stimulable phosphor sheet and the stimulating light beam in a sub-scanning direction relatively to the other so that the stimulable phosphor sheet is exposed to the stimulating light beam along a plurality of main scanning lines arranged in the sub-scanning direction at a predetermined pitch and stimulated emission emitted from the part of the stimulable phosphor sheet exposed to the stimulating light beam is photoelectrically converted to an electric image signal by a photoelectric convertor. The power of the stimulating light beam is controlled depending on the pitch at which the main scanning lines are arranged in the sub-scanning direction.
    • 通过沿着主扫描方向延伸的主扫描线投射光束,通过刺激光束对存储有放射线图像的可刺激的荧光体片进行二维扫描,并将可激发的荧光体片和刺激光束中的一个移动到 副扫描方向相对于另一方,使得可刺激的荧光体片沿预定间距沿副扫描方向布置的多个主扫描线暴露于刺激光束,并且从可刺激荧光体的一部分发射的受激发射 暴露于刺激光束的片被光电转换器光电转换成电图像信号。 刺激光束的功率根据主扫描线沿副扫描方向排列的间距来控制。
    • 4. 发明授权
    • Detection apparatus, detection method, and optically transparent member
    • 检测装置,检测方法和透光构件
    • US07830521B2
    • 2010-11-09
    • US11864711
    • 2007-09-28
    • Hiroaki YamamotoToshihito KimuraHitoshi ShimizuMasashi Hakamata
    • Hiroaki YamamotoToshihito KimuraHitoshi ShimizuMasashi Hakamata
    • G01N21/00
    • G01N21/553G01N2021/157
    • Provided are a detection apparatus, a detection method and an optically transparent member, which can detect a decrease in a precision. A convolution is performed by a convolution portion 80 contained in an image processing portion 38, to acquire the distribution information indicating the light intensity distribution of a light beam, which is totally reflected at the interface and which is incident at a plurality of angles to an dielectric block 52 so as to be totally reflected at the interface of the dielectric block 52. A spatial frequency resolution is performed on the light intensity distribution indicated by the distribution information acquired, by a detection precision evaluating portion 86 contained in the image processing portion 38, to thereby derive the light intensity distribution of each spatial frequency of the light beam. The precision is detected by comparing the light intensity distribution derived, with a threshold value predetermined for each spatial frequency.
    • 提供了能够检测精度降低的检测装置,检测方法和光学透明构件。 通过包含在图像处理部分38中的卷积部分80执行卷积,以获取指示在该界面处被全反射并以多个角度入射的光束的光强度分布的分布信息 介质块52,以便在介质块52的界面处被全反射。通过由图像处理部分38中包含的检测精度评估部分86对由所获取的分布信息指示的光强度分布执行空间频率分辨率 ,从而导出光束的每个空间频率的光强度分布。 通过将导出的光强度分布与针对每个空间频率预定的阈值进行比较来检测精度。
    • 9. 发明授权
    • Radiation image readout method and apparatus
    • 辐射图像读出方法及装置
    • US06759673B2
    • 2004-07-06
    • US10162197
    • 2002-06-05
    • Taizo AkimotoMasashi Hakamata
    • Taizo AkimotoMasashi Hakamata
    • G01N2304
    • G01T1/2014
    • A radiation image readout apparatus scans an excitation light in a main scanning direction and a sub scanning direction over a stimulable phosphor sheet, on which radiation energy has been stored, and detects the stimulated emission emitted thereupon; wherein, various types of phosphor sheets can be read out at a high resolution and high sensitivity. The excitation light energy level for obtaining an adequate sensitivity for each type of phosphor sheet is obtained. A controller controls the intensity of the excitation light emitted from the light source and the speed of the scanning mechanism, that is, the readout speed, whereby the excitation light projected onto a phosphor sheet of which the diffusion rate has been controlled by the inclusion therein of an navy blue colorant is of a greater energy level than the excitation light projected onto the white stimulable phosphor sheet not containing the navy blue colorant.
    • 放射线图像读出装置在主扫描方向和副扫描方向上扫描已经存储有辐射能的可刺激的荧光体片,并检测其上发射的受激发射; 其中可以以高分辨率和高灵敏度读出各种类型的荧光片。 获得用于获得每种类型的荧光粉片的足够灵敏度的激发光能级。 控制器控制从光源发射的激发光的强度和扫描机构的速度,即读出速度,由此投射到通过包含其中的扩散速率被控制的荧光体片上的激发光 的海蓝色着色剂的能量水平比投射到不含海蓝色着色剂的白色可激发荧光粉片上的激发光更大。