JPH065359B2 - Radiation image information reader - Google Patents
Radiation image information readerInfo
- Publication number
- JPH065359B2 JPH065359B2 JP60258762A JP25876285A JPH065359B2 JP H065359 B2 JPH065359 B2 JP H065359B2 JP 60258762 A JP60258762 A JP 60258762A JP 25876285 A JP25876285 A JP 25876285A JP H065359 B2 JPH065359 B2 JP H065359B2
- Authority
- JP
- Japan
- Prior art keywords
- reading
- erasing
- excitation
- image information
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Radiography Using Non-Light Waves (AREA)
- Facsimiles In General (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
【発明の詳細な説明】 −産業上の利用分野− 本発明は、輝尽性蛍光体板に蓄積記録された放射線画像
情報の読取装置に関する。TECHNICAL FIELD The present invention relates to a device for reading radiation image information accumulated and recorded on a stimulable phosphor plate.
−発明の背景− 蓄積性蛍光体は、X線,紫外線等の放射線が照射される
と、この放射線のエネルギーの一部を蓄積することがで
き、これに励起光を照射するときには蓄積されたエネル
ギーに応じた強度で輝尽発光する。このような性質を利
用し、輝尽性蛍光体板に被写体を透過した放射線を照射
することによって被写体の放射線画像情報を潜像として
記録蓄積し、この輝尽性蛍光体板にはその後にレーザ光
等の励起光を照射して潜像の濃度(蛍光体の各部位での
エネルギー蓄積量)に対応した輝尽発光量を光検出器で
検出、さらには検出信号を処理することによって放射線
画像を読取り、この読取った画像情報を写真フィルムへ
の記録やディスプレイ装置に表示する装置が注目されて
きている。—Background of the Invention— When a stimulable phosphor is irradiated with radiation such as X-rays and ultraviolet rays, a part of the energy of this radiation can be accumulated, and when this is irradiated with excitation light, the accumulated energy is accumulated. It emits stimulated emission with an intensity corresponding to. Utilizing such a property, the radiation image information of the subject is recorded and accumulated as a latent image by irradiating the stimulable phosphor plate with the radiation that has passed through the subject. By irradiating excitation light such as light, the photodetector detects the photostimulated luminescence amount corresponding to the density of the latent image (energy storage amount at each site of the phosphor), and further processing the detection signal to obtain a radiation image Attention has been focused on a device for reading the image data, recording the read image information on a photographic film, and displaying it on a display device.
このような装置において、輝尽性蛍光体板に大容量の光
を照射することにより読取りを行った後の残像を消去で
き、この消去手段を設けることにより、輝尽性蛍光体板
の繰り返し使用が可能となる。In such an apparatus, the afterimage after reading can be erased by irradiating the stimulable phosphor plate with a large amount of light, and by providing this erasing means, the stimulable phosphor plate can be repeatedly used. Is possible.
この消去手段を備える場合、画像情報の記録,読取りに
対する消去の制御手順が適切になされないときには画質
の低下や処理時間の遅延の問題が生じる。これを以下に
詳細に説明する。When the erasing means is provided, problems such as deterioration of image quality and delay of processing time occur when the control procedure of erasing for recording and reading of image information is not properly performed. This will be described in detail below.
まず、画像読取りはレーザ等の励起光源(光学系も含
む)からの光ビーム走査で輝尽性蛍光体板を照射しなが
らこの走査方向と直交する方向に走査位置が代えられ、
この輝尽性蛍光体板の光ビーム走査面に対応配列した光
ファイバーの集光体からの導入光が光電子増倍管等の光
検出器で電気信号に変換され、これら励起光源,集光
体,光検出器等が一体に構成される励起・読取ユニット
は機構系によって光ビーム走査の主走査方向とは直交す
る方向に移動制御という副走査が行われる。First, in image reading, the scanning position is changed in a direction orthogonal to the scanning direction while irradiating the stimulable phosphor plate with a light beam scanning from an excitation light source (including an optical system) such as a laser,
The introduced light from the optical fiber condensing body arranged corresponding to the light beam scanning surface of the stimulable phosphor plate is converted into an electric signal by a photodetector such as a photomultiplier tube, and these excitation light source, condensing body, The excitation / reading unit in which the photodetector and the like are integrated is subjected to a sub-scan, which is a movement control, in a direction orthogonal to the main scanning direction of the light beam scanning by a mechanical system.
従って、画像読取りは輝尽性蛍光体板の一端部から終端
部まで励起・読取ユニットを移動させ、画像読取りの終
了で該ユニットを読取り開始位置まで戻すことで終了す
る。この後、輝尽性蛍光体板の残像を消去するために消
去ランプを一定時間点灯させる消去制御に入る制御手順
では、1回の記録,読取り,消去に要する処理時間が長
くなる。Therefore, image reading is completed by moving the excitation / reading unit from one end to the end of the stimulable phosphor plate and returning the unit to the reading start position at the end of image reading. After that, in the control procedure of entering the erasing control in which the erasing lamp is turned on for a certain period of time to erase the afterimage of the stimulable phosphor plate, the processing time required for one recording, reading and erasing becomes long.
また、励起・読取ユニットに消去ランプを一体的に設
け、画像読取りを行いながら該読取り完了部分を順次消
去していけば、読取りと消去が並行的に行われて処理時
間の短縮を図ることができる。しかし、この場合には消
去ランプの光が集光体に入射したり、読取り中の走査線
を照射して読取り信号に大きなノイズを発生させて読取
り画像の画質低下を起す問題がある。また、読取りと消
去が並行的に行われるため、読取りあるいは消去の何れ
かの時間的制約を受けてしまい、適正な読取りあるいは
消去を難つかしくする。例えば、比較的速い読取りの副
走査時間内に消去を行うには輝尽性蛍光体板に高い強度
の消去光を与える必要があり、これは大型で大重量の消
去光源及びその駆動機構を必要とするし、上記の読取り
信号へのノイズレベルの増大にもなる。Further, if an exciter / reader unit is integrally provided with an erasing lamp and the read-completed portion is sequentially erased while the image is being read, the reading and erasing can be performed in parallel, and the processing time can be shortened. it can. However, in this case, there is a problem that the light of the erasing lamp is incident on the light condensing body or the scanning line during reading is irradiated to generate a large noise in the read signal to deteriorate the quality of the read image. Further, since reading and erasing are performed in parallel, either reading or erasing is subject to a time restriction, which makes proper reading or erasing difficult. For example, in order to perform erasing within a relatively fast reading sub-scanning time, it is necessary to give a high intensity erasing light to a stimulable phosphor plate, which requires a large and heavy erasing light source and its driving mechanism. However, this also increases the noise level of the read signal.
また、以上までの何れの消去方法にあっても、消去終了
から次回の撮影までの間隔が長い場合には輝尽性蛍光体
板が他の放射線源からの放射線エネルギーを蓄積し、次
回の撮影像にノイズとなるようなカブリを起す問題があ
った。Also, in any of the above erasing methods, if the interval between the end of erasing and the next imaging is long, the stimulable phosphor plate accumulates radiation energy from another radiation source and the next imaging is performed. There was a problem of causing fog in the image.
−発明の目的− 本発明の目的は、消去光による読取り信号へのノイズ発
生を無くしながら処理時間を短縮できる読取装置を提供
することにある。-Object of the Invention-It is an object of the present invention to provide a reading device that can reduce the processing time while eliminating noise in the read signal due to erasing light.
−発明の構成− 上記目的を達成する本発明の放射線画像情報の読取装置
は、放射線撮影により被写体の放射線画像情報が潜像と
して記録された輝尽性蛍光体板に対する位置を往復移動
制御される励起・読取ユニットと、消去手段とを設け、
前記励起・読取ユニットにより前記輝尽性蛍光体板から
の放射線画像情報を読み取り、前記消去手段により前記
読み取りの終了した輝尽性蛍光体板の残像を消去する放
射線画像情報の読取装置において、前記消去手段が、前
記励起・読取ユニットに一体化されているものであり、
前記励起・読取ユニットを移動させる往路で前記放射線
画像情報の読取動作を行わせるとともに、次回の放射線
撮影の直前に、復路で前記消去手段による残像の消去動
作を行うように制御する制御手段を備えたことを特徴と
する。—Structure of the Invention— In a radiation image information reading apparatus of the present invention that achieves the above object, the position is reciprocally controlled with respect to the position of a stimulable phosphor plate on which radiation image information of a subject is recorded as a latent image by radiography. An excitation / reading unit and an erasing means are provided,
In a radiation image information reading device for reading radiation image information from the stimulable phosphor plate by the excitation / reading unit and erasing an afterimage of the stimulable phosphor plate that has been read by the erasing means, The erasing means is integrated with the excitation / reading unit,
A control means is provided for performing a reading operation of the radiation image information on the outward path of moving the excitation / reading unit, and for controlling to perform an afterimage erasing operation by the erasing means on a returning path immediately before the next radiographic imaging. It is characterized by that.
−実施例− 第1図は本発明の一実施例を示す装置構成図であり、胸
部X線撮影に適用した場合である。放射線画像情報読取
装置1は、X線発生源(図示しない)からの放射線(矢
印で示す)が被写体Mを透過した放射線を輝尽性蛍光体
板2に受量することで該被写体Mの放射線画像を潜像と
して記録する。励起・読取ユニット3は読取装置1内で
輝尽性蛍光体板2の背面で昇降機構(図示しない)によ
って上下方向に移動可能に設けられる。-Embodiment- FIG. 1 is an apparatus configuration diagram showing an embodiment of the present invention, and is a case where it is applied to chest X-ray photography. The radiation image information reading apparatus 1 receives the radiation (indicated by an arrow) from the X-ray generation source (not shown) that has passed through the subject M by the stimulable phosphor plate 2 to receive the radiation of the subject M. Record the image as a latent image. The excitation / reading unit 3 is provided inside the reading device 1 so as to be vertically movable by a lifting mechanism (not shown) on the back surface of the stimulable phosphor plate 2.
励起・読取ユニット3はレーザ光源等の光ビーム発生部
(図示しない)からの光ビームを回転多面鏡等の偏光器
4で扇形状の走査ビームとして取り出し、この走査ビー
ムはピント調整用のf−θレンズ等の集光レンズ5を通
り、さらに反射ミラー6,7,8で光路を調整され、半
透鏡9を経て輝尽性蛍光体板2の励起光としてその背面
の走査ビームにされる。半透鏡9で一部分離された光ビ
ームは集束レンズ10等を通して受光素子11に取込まれ、
走査ビームに同期した読取信号処理に供される。The excitation / reading unit 3 extracts a light beam from a light beam generator (not shown) such as a laser light source as a fan-shaped scanning beam by a polarizer 4 such as a rotating polygon mirror, and this scanning beam is f-for focus adjustment. After passing through a condenser lens 5 such as a θ lens, the optical path is adjusted by reflection mirrors 6, 7 and 8, and a scanning beam on the back surface thereof is made as excitation light for the stimulable phosphor plate 2 via a semitransparent mirror 9. The light beam partially separated by the semi-transparent mirror 9 is taken into the light receiving element 11 through the focusing lens 10 and the like,
It is used for read signal processing synchronized with the scanning beam.
集光体12は、輝尽性蛍光体板2が励起される走査ビーム
の照射位置に平行に配列された光ファイバー集光端を有
し、該走査ビームで励起された輝尽性蛍光体板2からの
輝尽発光を受光する。この集光体12から導入された光は
輝尽発光波長領域に通過帯域を持つフィルタ等を経て光
検出器13の光電面に入射され、この入射した光量に比例
した電流信号として光検出器13から取出される。この電
流信号はコンピュータ等を制御中枢部とする画像情報処
理装置(図示しない)によってディジタル信号による処
理がなされる。The condensing body 12 has optical fiber condensing ends arranged in parallel to the irradiation position of the scanning beam for exciting the stimulable phosphor plate 2, and the stimulable phosphor plate 2 excited by the scanning beam. It receives the stimulated emission from. The light introduced from the light collector 12 is incident on the photocathode of the photodetector 13 through a filter having a pass band in the stimulated emission wavelength region, and the photodetector 13 is a current signal proportional to the incident light amount. Taken from. This current signal is processed by a digital signal by an image information processing device (not shown) whose control center is a computer or the like.
こうした構成の励起・読取ユニット3とその昇降機構に
より、走査ビームで輝尽性蛍光体板2に励起光を走査
(主走査)させながら走査方向とは直交する上下方向
(図示Y方向)に走査位置を移動させ、各走査点での輝
尽性蛍光体板2からの輝尽発光を集光体12,光検出器13
を経て電気信号として読取り、この読取信号の処理によ
ってX線画像情報を得る。By the excitation / reading unit 3 and the elevating mechanism thereof having such a configuration, the stimulable phosphor plate 2 is scanned with the excitation light by the scanning beam (main scanning) and is scanned in the vertical direction (Y direction in the drawing) orthogonal to the scanning direction. By moving the position, the stimulated emission from the stimulable phosphor plate 2 at each scanning point is collected by the condensing body 12 and the photodetector 13.
Is read as an electric signal and X-ray image information is obtained by processing the read signal.
ここで、読取終了した輝尽性蛍光体板2の残像を消去す
るための消去ランプ14が励起・読取ユニット3に一体に
設けられる。消去ランプ14は、タングステンランプ,ハ
ロゲンランプ、蛍光灯などが使用され、輝尽性蛍光体板
2の背面で集光体12の集光端よりも少し上部でほぼ平行
に発光面が設けられる。また、消去ランプ14の光が輝尽
性蛍光体板2の面に効率良く集中するよう反射フード15
が設けられ、消去ランプ14の光および輝尽性蛍光体板2
からの反射光が光検出器13の光電面を劣化させるのを防
止するよう集光体12及び光検出器13には遮光カバー16及
び集光体12の集光端を遮光する遮光蓋(図示しない)が
設けられる。なお、消去ランプ14として蛍光灯のように
放射線に対して発光するランプを使用するときには消去
時以外はシャッタで覆う遮光手段を設け、撮影時などの
放射線による消去ランプの発光が輝尽性蛍光体板2を照
射しないようにされる。この場合、遮光手段を鉛ガラス
とするときにはその可動手段を不要にする。この消去ラ
ンプ14は、励起・読取ユニット3がその読取動作開始で
読取開始位置(図示では最高位置)から読取終了位置
(最低位置)まで下降しながら読取動作する往路では消
灯制御されており、励起・読取ユニット3がその読取終
了位置から読取開始位置まで上昇する復路で点灯制御さ
れて輝尽性蛍光体板2の消去動作を行う。Here, an erasing lamp 14 for erasing the afterimage of the stimulable phosphor plate 2 that has been read is provided integrally with the excitation / reading unit 3. As the erasing lamp 14, a tungsten lamp, a halogen lamp, a fluorescent lamp, or the like is used, and a light emitting surface is provided substantially parallel to the back surface of the stimulable phosphor plate 2 and slightly above the light collecting end of the light collecting body 12. Further, the reflection hood 15 is arranged so that the light of the erasing lamp 14 is efficiently concentrated on the surface of the stimulable phosphor plate 2.
Is provided, and the light of the erasing lamp 14 and the stimulable phosphor plate 2 are provided.
In order to prevent the reflected light from the light from deteriorating the photoelectric surface of the photodetector 13, the light collector 12 and the photodetector 13 have a light-shielding cover 16 and a light-shielding cover that shields the light-collecting end of the light-collector 12 (shown in the figure. No) is provided. When a lamp that emits radiation, such as a fluorescent lamp, is used as the erasing lamp 14, a light-shielding means that covers with a shutter is provided except when erasing, and the emission of the erasing lamp due to radiation during photographing is a stimulable phosphor. The plate 2 is not illuminated. In this case, when the light shielding means is made of lead glass, the movable means is unnecessary. The erasing lamp 14 is controlled to be turned off in the forward path where the excitation / reading unit 3 starts the reading operation and descends from the reading start position (the highest position in the figure) to the reading end position (the lowest position) to perform the reading operation. The lighting of the reading unit 3 is controlled in the returning path from the reading end position to the reading start position to perform the erasing operation of the stimulable phosphor plate 2.
第2図は撮影と読取と消去の1サイクル制御を示すタイ
ムチャートである。撮影時には励起・読取ユニット3は
最高位置になる読取開始位置に停止されている。撮影操
作が行われたとき、その撮影信号が与えられたとき(時
刻t1)から移動機構の運転制御を開始し、励起・読取
ユニット3が下降し始めてその移動速度が安定したとき
(時刻t2)に励起光源,偏光器4,光検出器13、遮光
蓋等の遮光手段を読取りに必要な時間TRだけオン制御
し、読取り動作を行わせる。この読取りに必要なときの
み各部をオン制御することでその寿命を延ばす。読取制
御終了で励起・読取ユニット3は最下位まで降下して停
止制御され、該ユニット3を次回の読取りのために読取
開始位置(最高位)まで上昇制御するとき(時刻t3)
に消去ランプ14の点灯制御を行う。そして、励起・読取
ユニット3を読取開始位置まで上昇させたとき(時刻t
4)に消灯制御する。FIG. 2 is a time chart showing one cycle control of photographing, reading and erasing. At the time of photographing, the excitation / reading unit 3 is stopped at the reading start position, which is the highest position. When the photographing operation is performed, the operation control of the moving mechanism is started from the time when the photographing signal is given (time t 1 ), and the excitation / reading unit 3 starts descending to stabilize the moving speed (time t 1 ). excitation light source 2), polarizer 4, the photodetector 13, and only the on control time T R required to read the shading means such as a light-shielding cover to perform the read operation. The life is extended by controlling each part to be turned on only when necessary for this reading. When the reading control is completed, the excitation / reading unit 3 is lowered to the lowest position and is stopped and controlled, and when the unit 3 is raised to the reading start position (highest position) for the next reading (time t 3 ).
Then, the erasing lamp 14 is controlled to be turned on. Then, when the excitation / reading unit 3 is raised to the reading start position (time t
4 ) Turn off the light.
従って、読取りと消去は時間的に完全に分離され、消去
ランプ14の光が読取信号のノイズとして侵入することが
なくなる。そして、読取時間と消去時間は互いに独立的
に設定できるため、読取り,消去夫々に適正な速度に設
定して良好な読取,消去動作を得ることができるし、消
去時間を読取時間に較べて長くすることで消去ランプ14
を小型,軽量のものにできる。Therefore, reading and erasing are completely separated in time, and the light of the erasing lamp 14 does not enter as noise of the read signal. Since the reading time and the erasing time can be set independently of each other, it is possible to set proper speeds for reading and erasing to obtain good reading and erasing operations, and the erasing time is longer than the reading time. Erase lamp 14
Can be small and lightweight.
ここで、消去動作は、撮影間隔が長い場合には撮影直前
に行うようにして一層好適な消去状態を得る。すなわ
ち、読取動作終了で励起・読取ユニット3を最下位まで
移動した状態で停止させておき、次回の撮影に入る直前
に該ユニット3を読取開始位置まで上昇させながら消去
ランプ14を点灯させて消去動作を行わせ、この消去動作
終了で撮影動作に入るようにする。この制御タイムチャ
ートは第3図に示すようになる。Here, the erasing operation is performed immediately before shooting when the shooting interval is long to obtain a more suitable erasing state. That is, when the reading operation is completed, the excitation / reading unit 3 is stopped in a state where it is moved to the lowest position, and the erasing lamp 14 is turned on while erasing the unit 3 while raising the unit 3 to the reading start position immediately before starting the next photographing. The operation is performed, and the photographing operation is started at the end of this erasing operation. This control time chart is as shown in FIG.
このような消去制御により、消去から撮影までの時間が
短くなり、その間に輝尽性蛍光体板2が他の放射線源か
らの放射線エネルギーを蓄積したり、あるいは本体外部
からの漏れ光等によって次回の撮影像に対してノイズと
なるようなカブリを防止する。また、励起・読取ユニッ
ト3が最下位に位置する停止状態になって外力等による
該ユニット3の落下及びその防止のための安全機構等も
不要にして移動機構を簡単にする利点もある。By such erasing control, the time from erasing to photographing is shortened, during which the stimulable phosphor plate 2 accumulates radiation energy from another radiation source, or leakage light from the outside of the main body causes the next time. Prevents fogging that causes noise in the captured image. Further, there is an advantage that the excitation / reading unit 3 is at the lowest position and is in a stopped state, so that a safety mechanism for preventing the unit 3 from dropping due to an external force or the like is not necessary and the moving mechanism is simplified.
なお、実施例では励起・読取ユニット3を上下方向に昇
降させる場合を示したが、第4図に第1図と同等のもの
を同符号を付して示すように励起・読取ユニット3を水
平方向に移動させる方式あるいは斜め方向に移動させる
方式の読取装置に適用できるのは勿論、読取時に該ユニ
ットを上昇させ、消去時に下降させることでも同等の作
用効果を得ることができる。In the embodiment, the case where the excitation / reading unit 3 is moved up and down is shown. However, as shown in FIG. 4 which is the same as that shown in FIG. The same operation and effect can be obtained not only by being applied to a reading device of a system of moving in a direction or a system of moving in an oblique direction, but also raising the unit at the time of reading and lowering it at the time of erasing.
−発明の効果− 以上のとおり、本発明によれば、励起・読取ユニットに
消去手段を一体に設けた読取装置においてユニットの往
路で読取動作を行わせ、復路で消去動作を行わせるた
め、読取と消去を完全に分離させながらユニットの1往
復で済ませることができ、消去光による読取信号へのノ
イズ侵入を無くしながら処理時間を短縮できる効果があ
る。-Effects of the Invention As described above, according to the present invention, in the reading apparatus in which the erasing unit is integrally provided in the excitation / reading unit, the reading operation is performed on the outward path of the unit and the erasing operation is performed on the return path. It is possible to completely separate the erasure and the reciprocating operation of the unit, and there is an effect that the processing time can be shortened while eliminating noise intrusion into the read signal due to the erasing light.
第1図は本発明の一実施例を示す装置構成図、第2図は
実施例における撮影と読取と消去の制御タイムチャー
ト、第3図は実施例における撮影と消去の関係を示すタ
イムチャート、第4図は本発明に係る他の読取装置の構
成図である。 1…読取装置、2…輝尽性蛍光体板、3…励起・読取ユ
ニット、4…偏光器、5…集光レンズ、12…集光体、13
…光検出器、14…消去ランプ、15…反射フード、16…遮
光カバー。FIG. 1 is a device configuration diagram showing an embodiment of the present invention, FIG. 2 is a control time chart for photographing, reading and erasing in the embodiment, and FIG. 3 is a time chart showing a relation between photographing and erasing in the embodiment. FIG. 4 is a block diagram of another reading device according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Reading device, 2 ... Photostimulable phosphor plate, 3 ... Excitation / reading unit, 4 ... Polarizer, 5 ... Condensing lens, 12 ... Condenser, 13
… Photo detector, 14… Erase lamp, 15… Reflective hood, 16… Shading cover.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 竹内 三喜夫 東京都日野市さくら町1番地 小西六写真 工業株式会社内 (72)発明者 石井 満 東京都日野市さくら町1番地 小西六写真 工業株式会社内 (56)参考文献 特開 昭58−200269(JP,A) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Takeuchi 1 Sakura-cho, Hino City, Tokyo Photo Konishi Roku Photo Industry Co., Ltd. (72) Inventor Mitsuru Ishii 1 Sakura-cho, Hino City Tokyo, Photo Roku Konishi Photo Industry Co., Ltd. (56) Reference JP-A-58-200269 (JP, A)
Claims (1)
が潜像として記録された輝尽性蛍光体板に対する位置を
往復移動制御される励起・読取ユニットと、消去手段と
を設け、前記励起・読取ユニットにより前記輝尽性蛍光
体板からの放射線画像情報を読取り、前記消去手段によ
り前記読取りの終了した輝尽性蛍光体板の残像を消去す
る放射線画像情報の読取装置において、 前記消去手段が、前記励起・読取ユニットに一体化され
ているものであり、 前記励起・読取ユニットを移動させる往路で前記放射線
画像情報の読取り動作を行わせるとともに、次回の放射
線撮影の直前に、復路で前記消去手段による残像の消去
動作を行うように制御する制御手段を備えたことを特徴
とする放射線画像情報の読取装置。1. An excitation / reading unit for controlling reciprocating movement of a position with respect to a stimulable phosphor plate on which radiation image information of a subject is recorded as a latent image by radiography, and an erasing means are provided, and the excitation / reading is performed. A radiation image information reading device that reads radiation image information from the stimulable phosphor plate by a unit, and erases an afterimage of the stimulable phosphor plate that has been read by the erasing unit, wherein the erasing unit is: It is integrated with the excitation / reading unit, and performs the reading operation of the radiation image information on the forward path of moving the excitation / reading unit, and the erasing means on the return path immediately before the next radiographic imaging. 2. A radiation image information reading apparatus, comprising: a control unit that controls to perform an afterimage erasing operation by the.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60258762A JPH065359B2 (en) | 1985-11-20 | 1985-11-20 | Radiation image information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60258762A JPH065359B2 (en) | 1985-11-20 | 1985-11-20 | Radiation image information reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62119537A JPS62119537A (en) | 1987-05-30 |
JPH065359B2 true JPH065359B2 (en) | 1994-01-19 |
Family
ID=17324731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60258762A Expired - Lifetime JPH065359B2 (en) | 1985-11-20 | 1985-11-20 | Radiation image information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH065359B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0731371B2 (en) * | 1987-01-16 | 1995-04-10 | 富士写真フイルム株式会社 | Radiation image information recording / reading device |
JP2003029362A (en) * | 2001-07-18 | 2003-01-29 | Konica Corp | Device and method for reading radiation image information |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5866935A (en) * | 1981-10-16 | 1983-04-21 | Fuji Photo Film Co Ltd | Radiation picture information recording and reading device |
JPS5988729A (en) * | 1982-11-12 | 1984-05-22 | Konishiroku Photo Ind Co Ltd | Device for recording radiant ray picture |
JPS6021043A (en) * | 1983-07-15 | 1985-02-02 | Konishiroku Photo Ind Co Ltd | Radiation picture reader |
-
1985
- 1985-11-20 JP JP60258762A patent/JPH065359B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS62119537A (en) | 1987-05-30 |
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