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51. 发明授权

US06512240B1 Method and apparatus for reading a radiation image that has been stored in a photostimulable screen 失效
标题翻译：用于读取已经存储在可光激励屏幕中的辐射图像的方法和装置
公开(公告)号：US06512240B1
公开(公告)日：2003-01-28
申请号：US09595487
申请日：2000-06-16
申请人： Paul Leblans , Luc Struye
发明人： Paul Leblans , Luc Struye
IPC分类号： A61B600
CPC分类号： C09K11/7733 , A61B6/4216 , A61B6/502 , G01T1/2012 , G01T1/2014 , G01T1/2016 , G21K4/00
摘要： A radiation image read out method and apparatus including stimulating a divalent europium activated cesium halide phosphor screen wherein the halide is at least one of chloride and bromide, that has been exposed to a radiation image, detecting light emitted by the phosphor screen upon stimulation, and erasing the phosphor screen by exposing it to erasing light emitted by at least one laser source.
摘要翻译：一种放射线图像读出方法和装置，包括刺激二价铕活化铯卤化物荧光屏，其中卤化物是已经暴露于辐射图像中的氯化物和溴化物中的至少一种，在刺激时检测由荧光屏发射的光，以及通过将荧光屏暴露于擦除由至少一个激光源发射的光来消除荧光屏。

52. 发明申请

US20010011714A1 Radiation image read-out apparatus 失效
标题翻译：辐射图像读出装置
公开(公告)号：US20010011714A1
公开(公告)日：2001-08-09
申请号：US09765412
申请日：2001-01-22
发明人： Hiroaki Yasuda
IPC分类号： G03B042/02
CPC分类号： G01T1/2014 , G01T1/2016
摘要： In a radiation image read-out apparatus, a stimulable phosphor sheet storing thereon a radiation image is exposed to stimulating light and stimulated emission emitted from the stimulable phosphor sheet upon stimulation by the stimulating light is detected and an image signal representing the radiation image stored on the stimulable phosphor sheet is obtained by photoelectrically converting the stimulated emission. A read-out system includes an array of a plurality of read-out heads, each including a stimulating light source which projects the stimulating light onto the stimulable phosphor sheet and a photodetector which detects the stimulated emission. A conveyor system conveys the stimulable phosphor sheet and the read-out system relative to each other in a direction intersecting the direction of the array of the read-out heads.
摘要翻译：在放射线图像读取装置中，将存储有放射线图像的可刺激的荧光体片暴露于刺激光，并且在刺激光刺激时检测从可刺激的磷光体片发射的受激发射，并且存储表示存储在其上的辐射图像的图像信号可刺激的荧光体片通过光电转换受激发射而获得。读出系统包括多个读出头的阵列，每个读出头包括将刺激光投射到可刺激的荧光片上的刺激光源和检测受激发射的光电检测器。输送系统在与读出头的阵列的方向相交的方向上相对于彼此传送可刺激的磷光体片和读出系统。

53. 发明授权

US06259113B1 Process for erasing a residual radiation image 失效
标题翻译：擦除剩余辐射图像的过程
公开(公告)号：US06259113B1
公开(公告)日：2001-07-10
申请号：US09328003
申请日：1999-06-08
申请人： Makoto Funabashi
发明人： Makoto Funabashi
IPC分类号： G03B4202
CPC分类号： G03B42/02 , G01T1/2016
摘要： A process for erasing a radiation image remaining in a stimulable phosphor sheet in which a radiation image was recorded and then read by applying stimulating rays and collecting stimulated emission produced from the phosphor sheet is performed by applying erasing light onto the phosphor sheet under the condition that both front and back surfaces of the phosphor sheet are irradiated with the erasing light so that the ratio of amount of erasing light applied onto the front surface to that applied onto the back surface would be in the range of 51/49 to 75/25.
摘要翻译：通过在荧光体片材上施加擦除光来擦除残留在可刺激的荧光体片材中的放射线图像的处理，其中记录了放射线图像，然后通过施加刺激光线进行读取并收集从荧光体片材产生的受激发射，用擦除光照射荧光体片的前表面和后表面，使得施加到前表面上的擦除光量与施加到背面上的擦除光量的比率将在51/49至75/25的范围内。

54. 发明授权

US5534709A Radiation image reading apparatus 失效
标题翻译：辐射图像读取装置
公开(公告)号：US5534709A
公开(公告)日：1996-07-09
申请号：US299109
申请日：1994-09-02
申请人： Shinichi Yoshimoto , Fumihiro Namiki
发明人： Shinichi Yoshimoto , Fumihiro Namiki
IPC分类号： G01N23/04 , G01T1/29 , G03B42/02 , H04N1/00 , H04N1/04
CPC分类号： H04N1/0283 , G01N23/043 , G01T1/2014 , G01T1/2016 , G03B42/02 , H04N1/00795 , H04N2201/0412
摘要： In a radiation image reading apparatus, a photostimulated phosphor member absorbs a portion of radiation energy transmitted through an object and stores the absorbed radiation energy as a latent image. An excitation light source irradiates excitation light on the photostimulated phosphor member which then emits photostimulated luminescence light which is received and converged by an image reading device, and the latter outputting, as image information, an electrical signal which is dependent on a light intensity of the photostimulated luminescence light. A source of erasing light, having a spectral distribution band positioned substantially in a visible light region and which is normally ON, includes a shutter which is selectively opened to irradiate the erasing light on the photostimulated phosphor during an erasure time and otherwise is closed. A moving mechanism relatively moves the excitation light source and the image reading device with respect to the photostimulated phosphor member, in a moving direction which is perpendicular to the main scan direction.
摘要翻译：在放射线图像读取装置中，受光刺激的荧光体部件吸收通过物体透射的一部分辐射能量，并且将吸收的辐射能量存储为潜像。激发光源将激发光照射在受光刺激的荧光体部件上，然后发射由图像读取装置接收和收敛的受光刺激的发光，后者将图像信息作为图像信息输出，该电信号取决于光强度光刺激发光灯。具有基本上位于可见光区域并且通常为ON的光谱分布带的擦除光源包括选择性地打开以在擦除时间期间照射光激发的荧光体上的擦除光并且否则关闭的快门。移动机构在垂直于主扫描方向的移动方向上使激发光源和图像读取装置相对于受光刺激的荧光体部件相对移动。

55. 发明授权

US5530261A Method and apparatus for detecting residual noise energy levels on stimulable phosphor sheets 失效
标题翻译：用于检测可刺激的磷光体片上的残余噪声能级的方法和装置
公开(公告)号：US5530261A
公开(公告)日：1996-06-25
申请号：US364266
申请日：1994-12-27
申请人： Hiroaki Yasuda
发明人： Hiroaki Yasuda
IPC分类号： G03B42/02 , G01T1/29
CPC分类号： G01T1/2014 , G01T1/2016
摘要： In a method for detecting an energy level of residual noise on a stimulable phosphor sheet, a stimulable phosphor sheet, on which a radiation image has been stored, is exposed to stimulating rays, which cause it to emit light in proportion to the amount of energy stored thereon during its exposure to radiation. The emitted light is detected, and the radiation image is thereby read out. A predetermined amount of erasing energy is given to the stimulable phosphor sheet, from which the radiation image has been read out, and noise having an energy level not higher than a predetermined energy level, which noise is among noise due to radiation image information remaining on the stimulable phosphor sheet, is thereby erased. Residual noise is then read out from the stimulable phosphor sheet, on which the noise having the energy level not higher than the predetermined energy level has been erased. An energy level of the residual noise, which has thus been read out, is then detected.
摘要翻译：在用于检测可刺激的荧光体片材上的残留噪声的能量水平的方法中，将已经存储了放射线图像的可刺激的荧光体片暴露于刺激光线，使得其与能量的量成比例地发光在其暴露于辐射期间存储在其上。检测发射的光，从而读出放射线图像。给予已经读出放射线图像的可刺激的荧光体片材的预定量的擦除能量，以及具有不高于预定能量水平的能量水平的噪声，该噪声是由于辐射图像信息保留在噪声中可刺激的荧光粉片因此被擦除。然后从可激发的荧光粉片上读出剩余噪声，其中具有不高于预定能级的能级的噪声已被擦除。然后检测出已经读出的剩余噪声的能量水平。

56. 发明授权

US4906847A Radiation image read-out and reproducing apparatus 失效
标题翻译：辐射图像读出和再现装置
公开(公告)号：US4906847A
公开(公告)日：1990-03-06
申请号：US291015
申请日：1988-12-28
申请人： Nobuyoshi Nakajima , Toshitaka Agano , Ryousuke Furue
发明人： Nobuyoshi Nakajima , Toshitaka Agano , Ryousuke Furue
IPC分类号： G01T1/29 , G03B42/02 , H04N1/207 , H04N1/387
CPC分类号： H04N1/3871 , G01T1/2014 , G01T1/2016 , G03B42/02 , H04N1/207
摘要： A radiation image read-out and reproducing apparatus comprises a section for feeding a stimulable phosphor sheet carrying a radiation image stored thereon, a section for feeding a recording sheet, a section for photoelectrically reading ID information, and a light beam scanning section. The light beam scanning section comprises a read-out main scanning system for scanning a light beam in a main scanning direction on the stimulable phosphor sheet, a reproducing main scanning system for scanning a light beam in a main scanning direction on the recording sheet, and a sub-scanning system for moving the stimulable phosphor sheet and the recording sheet in a sub-scanning direction, thereby to read out a radiation image from a stimulable phosphor sheet and to reproduce a radiation image and ID information on a recording sheet by modulating the light beam in the reproducing main scanning system in accordance with a radiation image read out and information detected by the ID information reading section.
摘要翻译：放射线图像读出和再现装置包括用于馈送携带存储在其上的放射线图像的可刺激磷光体片的部分，用于馈送记录片的部分，用于光电读取ID信息的部分和光束扫描部分。光束扫描部分包括用于在可刺激的荧光体片上扫描主扫描方向上的光束的读出主扫描系统，用于在记录片材上沿主扫描方向扫描光束的再现主扫描系统，以及副扫描系统，用于沿副扫描方向移动可刺激的荧光体片材和记录片材，从而从可刺激的荧光体片材读出放射线图像，并通过调制记录片材在记录片材上再现辐射图像和ID信息根据读出的放射线图像在再现主扫描系统中的光束和由ID信息读取部分检测到的信息。

57. 发明授权

US4852975A Irradiation image erase unit for use with stimulable phosphor sheet 失效
标题翻译：用于可刺激荧光粉片的照射图像擦除单元
公开(公告)号：US4852975A
公开(公告)日：1989-08-01
申请号：US137706
申请日：1988-02-25
申请人： Sadami Yamada
发明人： Sadami Yamada
IPC分类号： G01T1/29
CPC分类号： G01T1/2016
摘要： An irradiation image erase unit for erasing a residual image from a stimulate phosphor sheet with erasure light is disposed in the vicinity of an image read-out unit which converts light emitted from the stimulable phosphor sheet upon stimulation thereof into an electric signal. The irradiation image erase unit comprises a box-shaped casing having a slot for passage of the stimulable phosphor sheet therethrough into the casing, and erasure light sources disposed in the casing for emitting the erasure light. A pair of rollers is mounted on the casing adjacent to the slot for introducing the stimulable phosphor sheet into the casing. The rollers or a cover enclosing the rollers serves to prevent the erasure light from leaking out of the casing toward the image read-out unit.
摘要翻译：用于从具有擦除光的刺激荧光体片擦除残留图像的照射图像擦除单元设置在图像读出单元附近，该图像读出单元将从刺激后的可刺激荧光体片发射的光转换为电信号。照射图像擦除单元包括：盒形壳体，其具有用于使可刺激的荧光体片通过其中的狭缝的槽，并且设置在壳体中用于发射擦除光的擦除光源。一对辊安装在与槽相邻的壳体上，用于将可刺激的磷光体片引入壳体中。辊子或包围辊子的盖子用于防止擦除光从壳体向图像读出单元泄漏。

58. 发明授权

US4816678A Method of detecting stored radiation energy level on stimulable phosphor sheet 失效
标题翻译：检测可刺激磷光体片上储存的辐射能量水平的方法
公开(公告)号：US4816678A
公开(公告)日：1989-03-28
申请号：US169702
申请日：1988-03-18
申请人： Yoshimi Takasaki
发明人： Yoshimi Takasaki
IPC分类号： G03B42/02 , A61B6/00 , G01T1/208 , G01T1/29 , H04N1/04 , G05B1/02
CPC分类号： G01T1/208 , G01T1/2014 , G01T1/2016
摘要： A method of detecting stored radiation energy level on a stimulable phosphor sheet comprises the steps of storing a predetermined level of radiation energy on a stimulable phosphor sheet for test before image read-out is carried out by scanning a stimulable phosphor sheet carrying a radiation image stored thereon with stimulating rays which cause the stimulable phosphor sheet to emit light and detecting the emitted light by a photomultiplier, carrying out the scanning and light detection for the stimulable phosphor sheet for test, and detecting a voltage Vo generated at a bleeder resistor of the photomultiplier at each scanning position. In the course of carrying out image read-out from the stimulable phosphor sheet carrying the radiation image stored thereon, a voltage V generated at the bleeder resistor is detected at each scanning position, and the voltage V is compared with the voltage Vo. Based on the value V-Vo, a radiation energy level exceeding the predetermined level is detected.
摘要翻译：一种在可刺激的荧光体片上检测存储的辐射能量水平的方法包括以下步骤：通过扫描携带存储的辐射图像的可刺激磷光体片，在预先执行图像读出之前将预定水平的辐射能量存储在可刺激的荧光体片上用于测试在其上具有刺激性的光线，其使可刺激的荧光体片发光，并通过光电倍增管检测发射的光，对用于测试的可激发的荧光体片进行扫描和光检测，并检测在光电倍增管的泄放电阻器处产生的电压Vo 在每个扫描位置。在从携带其上存储的放射线图像的可刺激的磷光体片进行图像读出的过程中，在每个扫描位置处检测在泄放电阻器处产生的电压V，并将电压V与电压Vo进行比较。基于值V-Vo，检测到超过预定水平的辐射能量水平。

59. 发明授权

US4780609A Radiation image erase unit for use with stimulable phosphor sheet 失效
标题翻译：用于可刺激荧光粉片的辐射图像擦除单元
公开(公告)号：US4780609A
公开(公告)日：1988-10-25
申请号：US740458
申请日：1985-06-03
申请人： Sadami Yamada
发明人： Sadami Yamada
IPC分类号： G01T1/29 , G01T1/11
CPC分类号： G01T1/2016
摘要： A radiation image erase unit for erasing a residual image from a stimulable phosphor sheet with erasure light is disposed in the vicinity of an image read-out unit which converts light emitted from the stimulable phosphor sheet upon stimulation thereof into an electric signal. The irradiation image erase unit comprises a box-shaped casing having a slot for passage of the stimulable phosphor sheet therethrough into the casing, and erasure light sources disposed in the casing for emitting the erasure light. A pair of rollers is mounted on the casing adjacent to the slot for introducing the stimulable phosphor sheet into the casing. The rollers or a cover enclosing the rollers serves to prevent the erasure light from leaking out of the casing toward the image read-out unit.
摘要翻译：用于从具有擦除光的可刺激的磷光体片上擦除残留图像的放射线图像擦除单元设置在图像读出单元的附近，该图像读出单元将从刺激的可刺激的荧光体片发射的光转换成电信号。照射图像擦除单元包括：盒形壳体，其具有用于使可刺激的荧光体片通过其中的狭缝的槽，并且设置在壳体中用于发射擦除光的擦除光源。一对辊安装在与槽相邻的壳体上，用于将可刺激的磷光体片引入壳体中。辊子或包围辊子的盖子用于防止擦除光从壳体向图像读出单元泄漏。

60. 发明授权

US4695726A Radiation image reproducing method and apparatus 失效
标题翻译：辐射图像再现方法和装置
公开(公告)号：US4695726A
公开(公告)日：1987-09-22
申请号：US732210
申请日：1985-05-09
申请人： Hideo Watanabe , Nobuyoshi Nakajima
发明人： Hideo Watanabe , Nobuyoshi Nakajima
IPC分类号： G03B42/02 , A61B6/00 , G01T1/00 , G01T1/29 , H04N1/409 , H04N7/18 , G03C5/16
CPC分类号： H04N1/409 , G01T1/2014 , G01T1/2016
摘要： In the radiation image recording and reproducing system, a radiation image stored in a stimulable phosphor sheet at an n+1'th object image recording step is read out to obtain an electric image signal, and an electric image signal corresponding to radiation energy remaining in the stimulable phosphor sheet after an n'th image recording step is subtracted from the electric image signal obtained after the n+1'th image recording step. A visible image only of the radiation image recorded at the n+1'th image recording step is reproduced on the basis of an electric image signal obtained by the subtraction.
摘要翻译：在放射线图像记录和再现系统中，读出在第n + 1个物体图像记录步骤中存储在可刺激的荧光体片中的放射线图像，以获得电图像信号，并且将与图1 在第n + 1个图像记录步骤之后获得的电图像信号中减去在第n个图像记录步骤之后的可刺激的荧光体片。基于通过减法获得的电图像信号再现仅在第n + 1个图像记录步骤记录的放射线图像的可视图像。

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