JPH11142997A - Radiograph recording and reading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiograph recording and reading device whose operability is good. SOLUTION: This device is provided with a cassette stacker part 3 where a cassette having a medium with a stored radiograph inside is set, an image reading part reading the radiograph of the medium, a medium carrying part taking the medium out of the cassette set on the part 3, carrying it to the image reading part and returning the medium whose reading is finished back to the part 3, and a display part 70 displaying the image read at the image reading part. The part 70 and the part 3 are arranged side by side in a nearly horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation image recording and reading apparatus for reading a radiation image stored in a medium.

[0002]

2. Description of the Related Art A conventional radiation image recording and reading apparatus will be described with reference to the drawings. (1) Overall configuration FIG. 2 is a front configuration diagram of a conventional radiation image recording and reading apparatus.
The overall configuration will be described with reference to FIG. 21 and FIG. 21, which is a right side configuration diagram in FIG.

[0003] In these figures, reference numeral 1001 denotes a vertically arranged three-tiered shelf 1012, 1013, 1014, and each shelf 1012, 1013, 1014 has a cassette 1002 having a medium in which a radiographic image is stored. , 1003,
A cassette stacker unit 1004 is set.

The cassette stacker 1001 has cassettes 100 of different sizes as shown in FIG.
2,1003,1004 can be set. A cassette 100 is provided below the cassette stacker unit 1001.
An image reading unit 1005 for reading a radiation image of a medium in 2,1003,1004 is provided. Further, between the cassette stacker unit 1001 and the image reading unit 1005,
A medium transport unit 1006 is provided for taking out a medium from any of the cassettes 1002, 1003, and 1004 set, transporting the medium to the image reading unit 1005, and transporting the read medium to the cassette.

[0005] Above the cassette stacker section 1001, an operation section 1007 for performing ON / OFF of the apparatus, selection of a cassette, various image processing, and the like, and a radiation image read by the image reading section 1005 and the apparatus. And a display unit 1008 for displaying the state of the user.

(2) Cassette stacker unit As shown in FIG. 22, which is a configuration diagram of the cassette stacker unit in FIG. 20 when viewed from above, cassettes set on the shelves 1012, 1013, and 1014 of the cassette stacker unit 1001. 1002, 1003, and 1004 are shelves 101
2, 1013, 1014, the back surface A, and the shelf 1012,
1013 and 1014 are set so as to contact the right side surface B.

An upright groove 1010 is formed in the center of the front face of the cassette stacker 1001 to facilitate removal of a small-sized cassette, in this conventional example, the cassettes 1003 and 1004.

[0008]

However, the radiation image recording / reading apparatus having the above configuration has the following problems.

(1) Since the operation unit 1007 and the display unit 1008 are provided above the cassette stacker unit 1001, the cassette 100 is transferred to the cassette stacker unit 1001.
After setting 2,1003,1004, the user moves his / her line of sight upward to operate the operation unit 1007,
08 must be confirmed, and the operability is poor.

(2) Cassette 1002, 1003, 1004
Is based on the back side of the device, that is, shelves 1012, 1013, 1
014 is set so as to be in contact with the back surface A.

Therefore, as shown in FIG. 21, shelves 1012, 102 on which large cassettes 1002, 1004 are set.
The operability when setting the small-sized cassette 1003 on the shelf 1013 between 14 and removing the small-sized cassette 1003 set on the shelf 1013 is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a radiation image recording and reading apparatus having good operability.

[0013]

According to a first aspect of the present invention, there is provided a cassette stacker section in which a cassette having a medium in which a radiation image is stored is set, and a radiation image of the medium is stored. An image reading unit to be read, a medium transport unit that takes out a medium from a cassette set in the cassette stacker unit, conveys the medium to the image reading unit, and returns the read medium to the cassette stacker unit; and the image reading unit. A radiation image recording and reading apparatus comprising: a display unit for displaying an image read by a radiographic image recording and reading apparatus, wherein the display unit and the cassette stacker unit are arranged in a substantially horizontal direction. Device.

Since the display section and the cassette stacker section are arranged in a substantially horizontal direction, when the cassette is set on the cassette stacker section and the image is confirmed on the display section, the amount of movement of the line of sight can be reduced. Good operability.

According to a second aspect of the present invention, there is provided a radiation image recording and reading apparatus according to the first aspect, wherein a touch panel is provided on a display screen of the display unit. Since the operation of the device can be performed on the display screen by providing the touch panel on the display screen of the display unit, the amount of movement of the line of sight is small when operating the device after setting the cassette in the cassette stacker unit. And operability is good.

According to a third aspect of the present invention, there is provided a radiation image recording / reading apparatus according to the second aspect, wherein the touch panel is of an optical type that reacts by blocking light.
Since a film is not required on the display screen as compared with a resistive film method, an analog capacitive coupling method, or the like that requires a film to be provided on the display screen, the display screen has excellent transparency.

According to a fourth aspect of the present invention, the cassette set in the cassette stacker according to any one of the first to third aspects of the present invention is set based on the front side of the apparatus. The radiation image recording and reading device according to claim 1.

By setting the cassette with the front side of the apparatus as a reference, the setting and taking out of a small-sized cassette becomes easy and the operability is good.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a radiation image recording / reading apparatus as an embodiment of the present invention will be described with reference to the drawings.

1. Schematic Configuration of Radiation Image Recording / Reading Apparatus The schematic configuration of the radiation image recording / reading apparatus of this embodiment will be described. FIG. 5 is a diagram showing a schematic configuration of the radiation image recording and reading apparatus.

The apparatus main body 2 of the radiation image recording / reading apparatus 1 includes a cassette stacker 3, a plate transporter 4, an image reader 5, a system controller 6, a display / operation unit 7, and a power supply unit 8. .

A cassette 9 accommodating radiation image conversion plates as a plurality of types of media can be set in the cassette stacker unit 3, and the cassette 9 accommodating the radiation image conversion plate is loaded into the cassette stacker unit 3. . When a predetermined operation is performed from the display / operation unit 7, the radiation image conversion plate 12 is pulled out from the cassette 9 by the plate transport unit 4.

Extracted radiation image conversion plate 12
Is transported by the plate transport unit 4 toward the image reading unit. In the image reading section 5, the radiation image conversion plate 1
2 is fixed, and reading by laser scanning is started. Radiation image conversion plate 1 that has been read by image reading unit 5
2 is stored in the original cassette 9 following the same route. The erasing operation of the image on the radiation image conversion plate 12 is performed by the erasing unit 13 when the image is stored in the cassette 9. That is, the radiation image conversion plate 12 is stored in the cassette 9 of the cassette stacker unit 3 while erasing the image.

Next, an outline of control of the radiation image recording and reading apparatus 1 will be described. FIG. 6 is a control block diagram of the radiation image recording and reading apparatus. The cassette stacker unit 3 provided in the apparatus main body 2 of the radiation image recording and reading apparatus 1 is provided with a cassette stacker unit mechanism / drive unit 30 and a cassette stacker unit control unit 31, and a cassette containing a plurality of types of radiation image conversion plates. 9 can be set. When the cassette stacker unit mechanism / drive unit 30 is driven based on the control of the cassette stacker unit control unit 31 and the cassette 9 containing the radiation image conversion plate is loaded,
Set to a predetermined state.

The plate transport section 4 is provided with a plate transport section mechanism / drive section 40 and a plate transport section control section 41. Based on a command from the cassette stacker section control section 31, the plate transport section control section 41 controls the plate transport section. The section mechanism / drive section 40 is controlled. Plate transport section mechanism / drive section 40
Pulls out the radiation image conversion plate 12 from the cassette 9 and conveys the extracted radiation image conversion plate 12 toward the image reading unit.

The image reading section 5 includes a sub-scanning section mechanism / drive section 50 and a main scanning section 51. The main scanning section 51 is conveyed in the sub-scanning direction by the sub-scanning section mechanism / drive section 50, and the main scanning section is driven. The image reading by the laser scanning of the unit 51 is performed.

The system control section 6 includes a main CPU 60 and a reading section control image input control section 61. The main CPU 60 is connected to a system disk 62 for storing system programs, image disks 63 and 64 for storing image information, and to a host computer 66, a diagnostic device 67 and a patient registration terminal 68 via a board 65. You. In the main CPU 60, overall control,
It performs image processing, output control, and image management. The reading section control image input control section 61 includes a cassette stacker section control section 31,
The sub-scanning mechanism / drive unit 50 and the main scanning unit 51 are controlled to read the image of the radiation image conversion plate 12, and the image information is sent to the main CPU 60.

The display / operation unit 7 includes a CRT 70 as a display unit for displaying an image read by the image reading unit 5, a CRT 70,
A touch panel 71 as an operation unit provided on the display screen 70 is provided. Command information from the touch panel 71 is sent to the main CPU 60, and the main CPU 60 performs control based on input commands.

Next, the external shape of the radiation image recording and reading apparatus will be described. FIG. 1 is a perspective view of the radiation image recording and reading apparatus, showing a state in which a cassette is not set.
FIG. 3 is a front view of the radiation image recording and reading apparatus with a cassette set, FIG. 3 is a left side view in FIG. 2, and FIG.
FIG. 2 is a right side view of the radiation image recording and reading apparatus in FIG.

Cassette stacker unit 3 and display / operation unit 7
Are arranged side by side in a substantially horizontal direction above the radiation image recording and reading apparatus. That is, the cassette stacker unit 3 is disposed on the upper right side of the radiation image recording and reading apparatus 1, and the display / operation unit 7 is disposed on the upper left side of the radiation image recording and reading apparatus.

The cassette stacker section 3 has a loading section 300 provided for every five slots. The display / operation unit 7 includes a CRT 70 as a display unit and a touch panel 71 as an operation unit provided on the display surface of the CRT 70. Operations such as examination reservation and patient registration on the CRT 70 and the operation of each unit of the apparatus are performed. The status display / setting and the display of the read image are performed.

As the CRT 70, for example, a 15-inch CRT (24-bit color, monochrome 256 gradations, resolution 1024 × 768) is used, and operation input is performed by a touch panel 71 on the CRT 70.

The touch panel 71 of the present embodiment is
A light system that reacts by blocking light, for example, infrared light, was used. The input section 300 includes an input guide section 301 and a storage section 302. The insertion guide portion 301 extends in a groove shape toward the storage portion 302, and is formed so as to guide the cassette 9 to the storage portion 302 in a vertical state. The cassette 9 is stored and held in the storage section 302 with a predetermined gap.

The cassette 9 is vertically loaded with the longitudinal direction of the cassette being horizontal and the front side of the apparatus as a reference.
At the same time as the cassette 9 is inserted, the light-blocking shutter 303 provided at the opening of the storage section 302 is closed for each slot to prevent light leakage from the opening.

The cassette 9 can be removed from each slot, and an LED lamp 304 indicating that reading is in progress is provided so that the cassette 9 is not accidentally removed. 2. Cassette The cassette 9 used will be described in detail.

The cassette accommodating the radiation image conversion plate is configured as shown in FIGS. 7 to 14. FIG. 7 is a perspective view showing a state where the radiation image conversion plate is accommodated in the cassette. FIG. FIG. 9 is a perspective view showing a state where the conversion plate is pulled out, FIG. 9 is a plan view of the cassette, FIG. 10 is a plan view showing a state where the radiation image conversion plate is stored in the cassette, FIG. 11 is a side view of the cassette, and FIG. 13 is a sectional view taken along the line CC of FIG.
FIG. 14 is a cross-sectional view taken along the line DD of FIG.
FIG.

The cassette 9 includes case halves 900 and 901.
And the periphery is tightened with screws 902 to be integrated. An opening 903 is formed in one side of the cassette 9, and the radiation image conversion plate 12 can be pulled out from the opening 903.

The radiation image conversion plate 12 is made of
A photostimulable phosphor layer, wherein the stimulable phosphor layer is
Radiation transmittance distribution of subject to irradiation radiation dose
The latent energy is accumulated to form a latent image. Radiation painting
Image conversion plate 12 is stimulated by vapor deposition or coating
Luminescent layer is provided. The stimulable phosphor layer depends on the environment
Shielded by protective material to prevent adverse effects and damage
Or it is coated. Material of radiation image conversion plate
As a fee, for example, M^IX ・ aM^IIX ′_Two・ BM^IIIX ″_Three : cA
Alkali hydride phosphor represented by (where M^IIs at least one of Li, Na, K, Rb and Cs
Represents alkali metal, M ^IIIs Be, Mg, Ca, Sr, Ba, Zn, Cd, Cu, N
represents at least one divalent metal of i, M^IIIIs Sc, Y,
La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, G
a, In represents at least one kind of trivalent metal, X, X ',
X "represents at least one halogen of F, Cl, Br, I,
X, X ', X' 'are Eu, Tb, Ce, Tm, Dy, Pr, Ho, Nd, Yb, Er, Gd, Lu, S
m, Y, Tl, Na, Ag, Cu, represents at least one metal of Mg,
a, b, c are numbers satisfying 0 ≦ a <0.5, 0 ≦ b <0.5, 0 <c ≦ 0.2
Represent. ) Also, for example, (Ba_1-xy Mg_x Ca_y) FX: eEu²⁺ (Where X is at least one of Br and Cl, x, y
And e are 0 <x + y <0.6, xy ≠ 0,10^-6≦ e ≦ 5 × 10^-2What
Is a number that satisfies the condition )
Halide halide, or, for example, BaFX: xCe, yA (where X is at least one of ClBr and I, and A
Is at least one of ln, Tl, Gd, Sm and Zn, and x and
And y are each 0 <x ≦ 2 × 10^-1 And 0 <y <5 × 10^-2 In
You. The phosphor BaBr: Eu represented by)²⁺Fluorescence indicated by
Will be

The radiation image conversion plate 12 is a cassette 9
A pair of locking pins 905 fixed to an inner rigid tray 904 and corresponding to portions other than the area where an image is recorded.
Is provided on the tray 904, and the pair of locking pins 905
Penetrates the tray 904 of the radiation image conversion plate 12. A guide plate 9 is attached to the pair of locking pins 905.
A guide hole 906 a is provided so as to be slidable, and a cap 907 that covers the opening is attached to the guide plate 906.

A lock mechanism 908 is built in the cap 907, and the lock of the lock mechanism 908 can be released from the lock hole 909. Also, the cap 907 has
A pair of levers 910 are provided.
0, the cap 907 is opened and closed, and the radiation image conversion plate 12 together with the tray 904 is pulled out from the cassette 9 or stored.

Table 1 shows an example of the type and size of the cassette 9.

[0042]

[Table 1]

An identification label 911 is affixed to the cassette 9, and identification information in white and black is recorded on the identification label 911. By detecting the identification information of the identification label 911, the type and size of the cassette 9 are determined. And an erroneous insertion into the cassette stacker unit 3 is detected.

Also, the identification direction of the cassette 9 and the front and back sides are determined by the identification seal 911. In addition, cassette 9
The indication of the up and down grid direction is indicated by the up and down indication mark 9
12 and the cassette 9 with the cap 907 facing down.
May be input to the cassette stacker unit 3 to specify the vertical direction.

The cassette 9 includes a case half 900.
A medical record clip 913 is provided at the center, and a concave portion 900a is formed in the case half 900 around the medical record clip 913. The medical record and the like are held by the concave portion 900a and the medical record clip 913.

3. Plate Transport Unit FIG. 15 is a front view showing the configuration of the plate transport unit, FIG. 16 is a side view of the cassette clinch in FIG. 15, and FIG. 17 is a plan view of the cassette clinch.

The plate transport section 4 is the apparatus main body 2 of the radiation image recording and reading apparatus 1 and is disposed below the cassette stacker section 3, and is provided between the sub-scanning section 50 and the cassette position of the cassette stacker section 3. The conversion plate 12 is transported.

The rate transport section mechanism / drive section 40 provided in the plate transport section 4 is configured as shown in FIG. 2, and FIGS. That is, the support frame 400 is supported by the guide rails 401 and 402 which are vertically arranged in the plate transport mechanism / drive unit 40. The guide rails 401 and 402 are arranged in a direction orthogonal to the cassette 9 stored in the cassette stacker unit 3. The lower end of the support frame 400 is fixed to a transport belt 403 disposed below, and the transport belt 403 is driven by a transport motor 404, whereby the support frame 400 moves along the guide rails 401 and 402.

The erasing section 1 is provided above the support frame 400.
3 is attached. As the erasing light source of the erasing unit 13, for example, two 300 W halogen lamps (driving voltage 90 V) are used, and the moving speed of the radiation image conversion plate 12 during erasing is 10.5 mm / sec.
Can be changed according to the image recording. The halogen lamp is an erasing light source, and turns on and irradiates the radiation image conversion plate 12 with erasing light to erase an afterimage. The elimination of the afterimage is to irradiate the radiation image exchange plate 12 with erasing light, thereby releasing the residual radiation energy in the radiation image conversion plate 12 after scanning and reading by the laser beam. ,
A guide shaft 410 is provided in the vertical direction.
A cassette clinch 411 is attached to 10 so as to be vertically movable. The cassette lynch 411 is attached to the transport belt 405 arranged in the vertical direction,
The transport belt 405 is driven by a transport motor 406 disposed below the support frame 400, whereby the cassette clinch 411 moves up and down along the guide shaft 410. The support frame 400 is provided with a holding roller 407 for preventing the radiation image conversion plate 12 from falling down, and holds an end of the radiation image conversion plate 12 outside the image recording area.

The cassette lynch 411 has a pair of arms 413 provided inside a support 412 so as to be rotatable about a support pin 414 as shown in FIG. The claw portion 413a provided at the tip of the pair of arms 413 is provided with a pair of levers 9 provided on the cap 907 of the cassette 9.
The pair of arms 413 are urged by springs 417 such that the base 413b is always in contact with the pin 415a of the cam 415.

The cam 415 is rotated by a drive motor 416. The pin 415a pushes the base 413b by the rotation of the cam 415, and the pair of arms 413 is opened and closed. A rotary disk 421 is provided on the rotary shaft 420 of the drive motor 416, and the notch 421 a formed in the rotary disk 421 crosses the photocoupler 422 at a time when the drive motor 41
The operation of the pair of arms 413 is controlled by detecting the rotation angle of the arm 6.

The support 4 of the cassette lynch 411
12 is provided with a pair of unlocking rods 430 for unlocking the lock mechanism 908 of the cap 907. The pair of unlocking rods 430 is
12, is slidably supported by a plate 431, and a solenoid 432 is connected to one of the unlocking rods 430. The unlocking rod 430 is connected to the other unlocking rod 430 by a connecting lever 433 and operates in conjunction therewith. .

The pair of unlocking rods 430 is always urged to the initial position by the spring 434, and the support 41 is moved at the position where the cassette clinch 411 moves upward.
2 is applied to the cap 907 of the cassette 9 and the solenoid 432 is actuated.
Projecting into the lock hole 909 of the cap 907 to release the lock of the lock mechanism 908.

When the lock mechanism 908 is unlocked, the pair of arms 413 is closed and the claw 413a is
07 is engaged with a pair of levers 910, and in this state, the cassette image clinch 411 is moved downward to pull out the radiation image conversion plate 12 from the cassette 9, and the radiographic image conversion plate 12 pulled out by the cassette image clinch 411 is held. The support frame 400 is moved to
Transport to 0.

When the image reading of the radiation image conversion plate 12 is completed, the support frame 400 is moved in the opposite direction to return to a predetermined position, the cassette clinch 411 is moved upward, and the radiation image conversion plate 12 is stored in the cassette 9. . At this time, when the radiation image conversion plate 12 is stored in the cassette 9 and the cap 907 is closed without operating the pair of lock release rods 430, the lock mechanism 908 automatically locks the cap 907.

4. Image Reading Unit FIG. 18 is a side view of the sub-scanning unit, and FIG. 19 is a diagram showing an optical system of the image reading unit. (1) Sub-scanning Unit Mechanism / Drive Unit The image reading unit 5 is built in the apparatus main body 2 of the radiation image recording and reading apparatus 1 and is arranged below the display / operation unit 7. The sub-scanning mechanism / drive unit 50 provided in the image reading unit 5 conveys the main scanning unit 51 in the sub-scanning direction.

As shown in FIGS. 2, 3, 18, and 19, the sub-scanning mechanism / drive unit 50 has a guide shaft 500 facing the radiation image conversion plate 12 and a ball screw 501 arranged in parallel. Have been. The guide shaft 500 is located above, and the ball screw 501 is located below. The main scanning unit 51 is held vertically by the guide shaft 500 and the ball screw 501, and can be moved horizontally.

The ball screw 501 is provided with a direct drive motor 502.
02 drives the ball screw 501 to move the main scanning unit 51 in the sub-scanning direction.

(2) Main Scanning As shown in FIGS. 18 and 19, the main scanning section 51 includes a laser beam generating section 510, a polygon mirror 511, an fθ lens constituting a condenser 512, a reflecting mirror 513, and a light receiving section. 5
14 and the like are integrally formed. Laser beam generator 5
10 is a gas laser as a light source. It has a solid-state laser, a semiconductor laser, and the like. The laser beam generator 510 generates a laser beam whose emission intensity is controlled as excitation light.

The laser beam reaches the polygon mirror 511 via the optical system, is deflected there, and is condensed by the fθ lens forming the condensing body 512, and is reflected by the reflection mirror 51.
The light path is deflected at 3 and is guided to the radiation image exchange plate 12 as scanning light for stimulating excitation. An image is read by receiving the stimulated emission emitted by the radiation image conversion plate 12 scanned by the laser beam by the light receiving unit 514. The light receiving unit 514 is configured by using a long photomultiplier 514a and a flat plate light collector 514b.

The light enters the long photomultiplier 514a and is photoelectrically converted into an electric signal corresponding to the incident light. That is, the stimulated emission enters the long photomultiplier 514a via the flat light collector 514b and is photoelectrically converted, so that an output current corresponding to a radiation image is obtained. The output current from the long photomultiplier 514a is converted into a voltage signal by a current / voltage exchanger (not shown), amplified by an amplifier (not shown), and then converted into a digital image signal by an A / D converter. The digital image signals are sequentially output to an image processing circuit, where they are subjected to various types of image processing such as gradation processing, and then stored as they are on an image disk or visualized by a CRT 70.

The reading section control image input control section 61 receives various synchronization signals from the polygon mirror 511 and an origin position detection signal from a photo sensor (not shown) for detecting the sub-scanning start position. The main scanning unit 51 is moved at a predetermined speed in the sub-scanning direction from the start position while synchronizing with the main scanning by the polygon mirror 511.

In this embodiment, the incidence angle at which the radiation image conversion plate 12 is irradiated is substantially perpendicular to the plate surface of the radiation image conversion plate 12 by 5 °.

5. Reading Cycle Time (Feed / Load Time) and Processing Capacity The feed / load time of the radiation image recording / reading apparatus 1 is set from when the cassette 9 is loaded into the cassette stacker unit 3 and when the reading is started until the cassette 9 can be extracted. (1
75 μm reading). In the sleep mode, about 10 seconds are added. If the maximum arrival dose on the radiation image conversion plate 12 exceeds 20 mR, a maximum of 18 seconds is added.

The processing capacity of the radiation image recording and reading apparatus 1 is defined as the number of processed sheets per hour when the cassettes 9 are continuously loaded in order from the top of the loading section 300, and is as follows. I have.

[0066]

[Table 2]

6. Image Reading Image reading by the image reading section 5 of the radiation image recording and reading apparatus 1 will be described in detail.

(1) Matrix size and read area Table 3 shows the read area and matrix size in each cassette.

[0069]

[Table 3]

(2) Photographing Sensitivity The photographing sensitivity of the image reading section 5 can be set in the following three stages for each part.

That is, the photographing sensitivities are low sensitivity (corresponding to s = 50 to 200), standard (corresponding to s = 200 to 1000), and high sensitivity (corresponding to s = 1000 to 5000), and the definition of the s value is 2.58. × 10 ^-7 PMT when 1535 digital values are output for CKg (1mR) X-ray irradiation
The sensitivity is s = 200, and is a value that relatively expresses the photomultitube (PMT) sensitivity based on the sensitivity.

(3) Removal of grid moiré When the grid is arranged in the direction specified by the cassette upper and lower marks, moiré can be removed. For example, 34, 40, 60, 80 lines / cm are used as the grid to be used. .

(4) Unevenness Correction The correction contents in the image reading unit 5 include unevenness in the main scanning direction (S), unevenness in the vertical direction (F), and unevenness in the polygon (P). These corrections are performed.

As the correction data, the parameters for each correction content are held in two types of 87.5 / 175 μm. 7. System Control Unit The system control unit 6 includes a main CPU 60 and a reading unit control image input control unit 61, and is configured as follows.

(1) System control unit The system control unit performs moire removal and various corrections. It is also used for image transfer with an image control board (ICU). X
GA-24bit color image display is possible.

As a hard disk, a system disk 62 storing a system program and image disks 63 and 64 storing image information are connected. Image data output can be switched between host computer output priority and hard copy priority by user setting.

(2) Image processing The following processing is performed by software of the system control unit. As the gradation processing, an algorithm for each part is set based on the photographing menu. Automatically, LUT rotation / shift is performed by ROI setting and histogram analysis. As manual operation, gradation processing using a fixed LUT is performed.

In the frequency processing, frequency emphasis is performed. Also,
Equalization compresses the dynamic range of the image signal. Two shooting modes (vertical and horizontal), 4
It supports split shooting. As an algorithm, processing conditions are determined for one predetermined division and applied to the entire image. Images are handled as one image.

In the irradiation field confirmation, an arbitrary polygonal irradiation field is automatically confirmed. However, front chest, side chest, abdomen simple,
The pelvis front and the like are limited to rectangles parallel to the edges of the image. The image direction determination automatically determines whether the head-to-tail direction of the human body corresponds to the vertical or horizontal direction of the image. However, only the front of the chest, the front of the child's chest, the simple abdomen, and the front of the pelvis are applicable, but are not limited thereto.

(3) Storage of Image Data The hard disks of the image disks 63 and 64 can be stored. (4) Patient Registration As a patient input method, a Japanese syllabary table displayed on the CRT 70 can be used, and usable character types are, for example, katakana and alphanumeric characters. In addition, it is also possible to automatically input an ID number. Furthermore, kanji can be input from the patient registration terminal.

The unit of patient registration is performed in examination units. For example, up to 24 images can be taken per inspection. The number of reserved inspections can be, for example, up to 100 inspections. According to the radiation image recording / reading apparatus having the above configuration, the operation / display unit 7
When the cassette 9 is set on the cassette stacker unit 3 and the image is confirmed on the operation / display unit, the amount of movement of the line of sight can be reduced. Good operability.

Further, by providing the touch panel 71 on the display screen of the CRT 70 of the operation / display section 7, the operation of the apparatus can be performed on the display screen of the CRT 70, and the cassette 9 is set on the cassette stacker section 3. After that, when the device is operated, the amount of movement of the line of sight is small, so that the operability is good.

Further, the touch panel 71 is of an optical system which reacts by blocking light. Since a film is not required on the display screen as compared with a resistive film method, an analog capacitive coupling method, or the like that requires a film to be provided on the display screen, the display screen has excellent transparency.

Further, since the cassette 9 set in the cassette stacker section 3 is set with reference to the front side of the apparatus, it is easy to set and take out a small size cassette, and the operability is good. .

[0085]

As described above, according to the first aspect of the present invention, since the display unit and the cassette stacker are arranged substantially horizontally, the cassette is set on the cassette stacker. In the case of checking the image on the display unit, the amount of movement of the line of sight is small, so that the operability is improved.

According to the second aspect of the present invention, since the touch panel is provided on the display screen of the display unit, the operation of the apparatus can be performed on the display screen. Therefore, after setting the cassette in the cassette stacker unit, When operating the apparatus, the amount of movement of the line of sight is small, and the operability is good.

According to the third aspect of the present invention, since the touch panel is of an optical type that reacts by blocking light, it can be compared with a resistive type, an analog capacitive coupling type, or the like that requires a film to be provided on a display screen. Since a film is not required on the display screen, the transparency of the display screen is excellent.

According to the fourth aspect of the present invention, by setting the cassette with reference to the front side of the apparatus, it is easy to set and take out the small-sized cassette,
Operability is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a radiation image recording and reading apparatus, showing a state in which a cassette is not set.

FIG. 2 is a front view of the radiation image recording and reading apparatus in a state where a cassette is set.

FIG. 3 is a left side view of FIG.

FIG. 4 is a right side view of the radiation image recording and reading apparatus in FIG. 2;

FIG. 5 is a diagram illustrating a schematic configuration of a radiation image recording and reading apparatus.

FIG. 6 is a control block diagram of the radiation image recording and reading apparatus.

FIG. 7 is a perspective view showing a state where a radiation image conversion plate is stored in a cassette.

FIG. 8 is a perspective view showing a state where a radiation image conversion plate is pulled out from a cassette.

FIG. 9 is a plan view of the cassette.

FIG. 10 is a plan view showing a state where a radiation image conversion plate is stored in a cassette.

FIG. 11 is a side view of the cassette.

FIG. 12 is a sectional view taken along section line CC of FIG. 9;

FIG. 13 is a sectional view taken along section line DD in FIG. 9;

FIG. 14 is a sectional view taken along section line EE in FIG. 9;

FIG. 15 is a front view illustrating a configuration of a plate transport unit.

FIG. 16 is a side view of the cassette clinch in FIG. 15;

FIG. 17 is a plan view of the cassette lynch.

FIG. 18 is a side view of a sub-scanning unit.

FIG. 19 is a diagram illustrating an optical system of an image reading unit.

FIG. 20 is a front configuration diagram of a conventional radiation image recording and reading apparatus.

FIG. 21 is a configuration diagram of a right side surface in FIG. 20;

FIG. 22 is a configuration diagram when the cassette stacker unit in FIG. 20 is viewed from above.

[Explanation of symbols]

 3 Cassette stacker section 7 Display / operation section 9 Cassette 70 CRT (display section) 71 Touch panel (operation section)

Claims (4)

[Claims] A cassette stacker for setting a cassette having a medium in which a radiation image is stored; an image reading unit for reading a radiation image of the medium; a medium from a cassette set in the cassette stacker; A medium transport unit that takes out the image, transports the image to the image reading unit, and returns the read medium to the cassette stacker unit, and a display unit that displays an image read by the image reading unit. A radiation image recording / reading device, wherein the display unit and the cassette stacker unit are arranged in a substantially horizontal direction. 2. The radiation image recording and reading apparatus according to claim 1, wherein a touch panel is provided on a display screen of the display unit. 3. The radiation image recording and reading apparatus according to claim 2, wherein the touch panel is of an optical type that responds by blocking light. 4. The radiation image recording and reading apparatus according to claim 1, wherein the cassette set in the cassette stacker is set on the basis of a front side of the apparatus.