JPS6049280A - X-ray detector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention is based on X-challenge or comma! 1. Regarding the X-Mi detector array for converting the incident transmitted radiation (hereinafter referred to as X-rays) into optical iC, 1. History 1.
or sf (7%('-)US%t+%, 378
No. 0291 (197: December 18, 3, line Vb, and 1
This invention relates to an improvement in an X-ray detector for use in a point X-ray device or an X-leg device for medical examinations, as disclosed in J+, September 2, 1997, republished as RE 28544.

The equipment shown in the U.S.% approval of Si + mentioned Stin etc.
l: - the output is collimated by a fixed sulin) and a plurality of sulins), which are collimated by an X1 source and multiple sulins).
1, 1) 1) The X-rays passing through the specimen are k j)') Okushi Q (-Ichi is the one who burns the three X sardines! The town 104 is
11. Outputs a bow. X, 1i of Reigen and Danger
14B/, and/or 11N test specimens one after another in the direction of increasing running power! II.: generate a large number of scan lines by advancing and thereby process the group of signals generated! ν and the quadratic opacity for the
The X-ray detectors in the conventional X-ray equipment are aligned with the direction of XWtjj beam dissemination.
With an 11-long IA notillator plate arranged, L, the first optical beam that absorbs the X iWJ incident on the 7 intillator plates and produces maggots? +I is detected using a photomultiplier (photomultiplier tube). 4K A.1", which has good absorption efficiency for X-rays, small afterglow 1'I-, and/or has a specific engineering process. ]
It has an absorption property of 1 fl+! Illusion to Nine i, 1. lFi It's me or someone and/or k
A, v ■ - East X +i urine j stomach 5 insect screen (xr
- intenso fire screen) as undissolved = t,
Since it is made separately from I, it is transparent to 8J Shuku9 or 4+
'4'; 1, "//The chiller plate efficiently absorbs the
11■i:, LX station! Φ1. /Intillator & is 1/[tteX1lJt! Effect 2. G: If it absorbs well and generates an autopsy, then the number of threads is j9.
Since the light photo/ particles generated in the deep hole of the chiller are absorbed inside the aircraft, they can be brought out with the light 1 beauty device. In order to increase the number of light photons generated in the shallow part of the intilator plate, even if the X-ray component 11 is further
The increase in light photon generation at shallow 19+ from the human blood on the intillator plate (4, the height is not large. Shallow r; In order to increase the number of 96 lives in the number of X-pressure songs, the number of 16 in the first-class foreign excursion of the song arm will be smaller than the decomposition Yj. Regarding the amount of 1xL1 photons emitted per prefecture, the collection efficiency of the X2 system Ei Ruki was quite poor.

In history, in order to accommodate multiple treadmills in the same 11th direction with a wooden sleeve, multiple conventional K, fil long X-ray detectors are arranged in the goblind direction and flat r +: 6 and 7L. However, there is a sufficient amount of
Noi U i! iRishuku-01, I'1-77 The width of the chiller plate is at least 1'l'F i! i21゛1”1
Cut:i-(It will be January 7:'+ to make a small X-ray detector with a sharp knife and an intermediate depth. 11 shi<, even if (・C'J' + i)'(r >'1: calculation:): Rito's j
It is difficult to realize 'l'ii combination by separating them from each other.51
1j -Ch 9, The purpose of this invention is to increase the energy received from the J
Another aspect of the present invention is to provide an X-ray detector that can detect smaller pixels from the valley j volcanic vessel using The purpose is to collect energy - 11 - increase the amount of light by 7 minutes (7 minutes)
Another object of the present invention is to increase the energy collection efficiency (I
The purpose is to provide an X1 length 1j calculator that can reduce the X powder irradiation penetration of fj to 8 bodies tested from C.
1. Another object of the present invention is that each of the play valley detectors can be used to inspect the entire jaw body, so that the 1. That is, different from the previous devices 1') using the unfortunate Aη small detector 1], it is possible that this invention will lead to a permanent conclusion.
To avoid this, the valley detector is standardized by the size of its inertia (R
1) There is no need to do this (false ratio/answer).

Detection in an array;
Since the output abstraction is generated without R, the signals from these detectors can be arbitrarily combined to obtain Tanigami's information regarding the brightness of the φ test specimen with respect to the X concept. .

An advantage of the present invention is that it can be used in conjunction with a radiant energy source to create a beam of radiant energy that is simultaneously attracted to a predetermined direct trajectory of the object to be tested.

The cross section of the beam is rectangular, and its major axis is the direction that defines the linear growth direction of the beam.

According to the invention, the detector is transparent to radiant energy.
37 parts of the r141i made of 100% nanoparticles. L sea urchin irradiates beam or hollow part '1+f+・+ QJ
Energy gland θ 44 (with respect to /l:+, 葡蔁te rj
＋１ Rebuild the structure to support the hollow ablation, and in the above-mentioned "h", i'il January will make the root wall of the basin that receives the radiant energy that will be missed. +la refers to a long membrane, and the Tsukimi 1 river is extended parallel to the axis of the hollow river S material in the previous 1. By forming a small rubbing angle with the direction of the self-beam, the path length of the radiant energy of the front line thin array material is greater than the thickness of the film. is,
At least -Ωi+N and li4 of the hollow member are expressed as 1.
Apparatus convex 111. The 9F 1st N? emitted by one piece of self/intilator material 4-1 and reflected by the inner surface of the front I armor material 2611? 3. In another embodiment of this 9B light, a plurality of hollow parts (A or beam 11i) are directed between the drawing directions and parallel to each other and placed next to each other. It is distributed on each film surface of the enticillator material! 1
It is made to be within one square area. Assuming that the width of the return surface of the HIC scintillator is exactly a part of the long axis of the beam divided into 1jJTt1++, each of the film surfaces is Each time it receives a different part of the beam.

, in another embodiment of the invention, the medium amount 1 of r)il
There are two examples of 4fll interest arrangement (play), IL
, these two (broiled;) 1. II History of Array Sondelator Destruction Materials: Q. Opaque Support Plate (I
lj are matched. The IS materials are parallel to each other and are oriented in the forward direction of the beam, and the common plane formed by the film surfaces of the Tani sontilizers is at a small frictional angle r with the force surface of the beam. It's been a long time since I've been in the middle of a long time. , VE
The only thing that stands out is that the signal for the number of bales A and A is received from the machine, and these signals are added to η or reduced by -1 ~
A picture 1 with a specific abstraction of Hakutetsu in the test body: i
'l = 1 history, I 1° - Referring to Figure 1, an X-ray apparatus using the detector array of the present invention - Normal
A rotary disk J3 having a conical beam 11 for forming a conical beam 11, and having a number of stages of slits 1-14 (referred to as rotating slits) made of paulownia wood that is opaque to X-rays. and a fixed slit 16 with a long sword-shaped cross section by measuring 1.1↓ of 5. Row X-ray Bee J, J21/Collimate.

1) In the above-mentioned Stinco J's U.S. Bamboo Meter 1tE28544, there is one picture (the general configuration used for the 1' beam and its 51υ construction are shown). This redundancy", ・is times・t・, slit 1
11% of 4 and δ of the fixed slit 1G are the X most beam e2 or moxibustion calli that comes out from there; It's swollen, and that JK power) 1 many L<:!
Iff・j method 1] Or the direction of the beam, the axis scanning direction 荀 4 negative cutting no J direction ζ' に 10. The rounded slit 16 is trapezoidal in shape, with the ends facing the same end.
The cross-sectional shape r of the beam 12 is maintained as a saw rectangle while the beam 12 passes from one end of the fixed slit 16 to the other end.
1, the X-ray beam 12 is scanned in the straight line direction indicated by arrow 17 along the object 18 to be tested, and object 1+18 is repeatedly scanned in the direction of arrow 17 Obtain a secondary raster scan of the object 18 by translating the object 18 (or
A1 bone beam (d, detection); 11 array 19t (incident. 7+exit) to Raku array 19', output 11i to output point 20 of some detector in that array 4 prompt'lj
Group 6, each suspender 1 in the array has its own output, and each suspender 1 in the array has its own sheath 8 and/or processed as described below. I made an ITIJ image representing 1jlJ degree of X hand of 4 pieces of 18 pieces. Referring to FIGS. 1 to 6, the detector array 19 has a plurality of detectors 1, It, Iu, and IV, each having a rectangular surface and parallel to the scanning direction 17. -J' f□c has 11 elongated stripes,
The dimensions of the 3-machine extraction are not a critical issue, but for the sake of clarity, each detector has a depth of 2 cm (X': direction of incidence of the Z beam 12 on t+), a depth of 4 crn, and The length in the scanning direction is 1.5 tit (see FIGS. 5 and 6). Each detection and J includes a hollow opening 21 having an internal reflective surface made of aluminum, for example, and the facing surface of the hollow layer 01 is made of paulownia wood with a meanness of 0.1 rrun. The completed plane II! j! , (sort) 22 has a total of 7t (see Figure 6). Detection of armored method'zrr I
, If, . The direction of the X-ray beam 12 is 17 (lL/I:IIJ:S)1. When the Screen 22? 413 minutes of irradiation 1, irradiated / 2. The female 2 clean emits light photons, and the first and second beams are reflected by i1 in the hollow member, and
f411 One or more pieces placed at the ends of a long sword or two swords (・-1,9iJ O) Shunto 1) L-shaped and 1 prominence, attached to one or more The photomultiply tube 23 (see FIG. 3) is provided with the photomultiple tube 23 (see FIG. 3).

In this preferred implementation (1vl), there are 19 arrays J and 4 K arrays.・! jBlue i■2 detector rows 1', II', IIl'.

...The first detector row 1, +1, l
, . They are separated from each other and supported by the substrates 22bK.When changing the outside of the griller after such a shift, the detectors 22bK and 22bK are separated from each other and supported.

II, l,... and detector array Bi, II',
Illo... are shifted from each other (see Figure 2).

For the entire detector array 19, the X-symmetrical beam 12 or the scintillator screen of each detector is provided with a grain zinc nozzle of 2 (see Figure 6).
(See No. 21-1) X Nor beam 1
2 is inclined with respect to the incident direction 4, so that the path length of the X-ray through the scintillator is longer than the thickness of the scintillator. To explain the history in detail with reference to Fig. 6, for each rotation, the width of the slit 14 is 0.7 mm, that is, the shorter 9 sides of the X-ray beam of the Llr plane are 0.7 mm. If the Xi beam is incident on the ftilator screen 22 with a thickness of 0.1 + nm, the MN length for actually selecting the screen 22 will be 1.5 mm.

Due to the dimensions of the valleys in the array and the surface of the detector and the scintillator screen associated with that detector, the part of the scintillator screen that has been summed in each capsule is projected from the X i4J4 direction. length of the beam 'i' +
il (P) Last time (Xi sieve run; direction that cuts the ml direction)
Length 1, 1 of the beam 12 [Do not remove the divided part on the surface long axis dimension P 1, Whole sheet 22 while cutting =
From the direction of X group j JJ, +9 i, 1. The number of detectors in one row is such that the length of the detector is at least equal to or greater than P; All r'dj components of the XiW beam are not received by the clean bending force (see Figure 1).11 For example, the detectors described above are arranged in 2011 i\ll in each row. , with the valley detector
- Length of the long sleeve of the beam: 41) If 0.7 mm is received (Hiroteru, Figure 6), the cross-sectional length of the entire 2011irl detector will be 14 mm *l + I P 'k J →
(It is possible to receive the entire a7 beam.)
171 Daisho) 6. One row is parallel to the X green beam and the detector 1 is parallel to the X green beam.
II, I,... Kasanotani side and cinching 22
The straight line passing through the intersection of; 1υ is the calculator Bi, II', l'.

W far is applied to the detector beam 12 so that the intersection between the tlj11 and the scintillator 22a is 1N.
do.

In particular, as mentioned above regarding the dimensions in Figure 6, if one corner of the rotating slit is set at 07, the trough detector capacity in the detector array will be in the direction that cuts detector 11 by fJ'Q. An example of an X MUM photon incident near the top edge of the detector 11 (Fig. 2?), which is about 0.7 mm.
≦1) The crosstalk effect arises from the fact that d) is output by either the detection A<l or the one-bundle output device 11. This effect can be reduced by using the non-chillator screen once.
In the case of mm, the length used by detectors l and x and y is 5 mm, respectively. The distance to the entrance is 3 meters.
m. The edge effect, or crosstalk, is about 1. mm (!: It's not that big.

The number of four detectors used in the array should be as large as possible to increase the collection efficiency of X-ray photons. Therefore, VIJ
Place the detector in the array as described above.
0 detectors are used, so 20 detector pairs J-11I-11'
,...one that uses fireflies This is shown in the funeral 5-J, t
This will be a seven-person detector array. With such 20 pairs of 1Σ output r and 7ξ array VC, the result is 20 pairs of [,54,ILIIl]11,+1(l). The relative position of 18 and r'jj +, i effect, 1γ play 19 is short-term capital for each la draw) J times 17'
tv jI lido IJ 6)) times the distance is equal to the simplicity of the valley 1 bundle generator kill su J-rasa 71 之), so the energy collected from the or J″', I) /
+: Kotsu Rugiha 1 ((Rii J 'H:H',),・ノ1.・In addition・1−ru 1・j」Ibi・gu1sujiru+:I'l'1tt By using = as 1:lA/ξ, it is possible to reduce j!ii +,'i411sJljii to the trying body by improving the convergence efficiency. Eha Saya'))4 'j'V y
20 old 1st 4 out i & ka array used for 1
．． i;) u;"It is possible to make a difference between 7 and 20, and therefore it is possible to reduce the time to about 1/1-yIo of X1ffl's light IJj. The relative position of the detector array f is determined by the beam J
111 pull'f1. If you shift the dividing capacity of the array (for example, 0.7 mm in Fig. 6) by r to L to r to the number of people t1,
The valley detector detects the entire ice, Jl: jl □I-ru no 1.
Because of this, it is only necessary to increase the output from some detectors to achieve these benefits. Illustration 17
Considering the sequence of data that can be taken in, the 3rd and 2nd binoculars that can Rj one data (MJ! data) by the detector I during the first sweep of the beam.・In the sweep, another Cheetah f: is captured by detector I, but one data is also obtained by detector 11, which is Mi
Since the line data from J times of detector l and the test object have the same quotient, these two retakes are added by 1p-a,
During the beam sweep of the third street, the handling test 1 test is extremely active against the detector array, so the 2
From the field Qi L rotation nf in the test subject 1 where the retake of the 1st nail and the retake of the 1st nail by the detector I were obtained, the first line data of the −C gorge was obtained by the detector ■, and these All line data are incremented. The same applies below. Addition of such line data is performed by a suitable computer program or a dedicated circuit (see Figure 1), and is performed by a suitable computer program or a dedicated circuit (see Figure 1), as described above.
significant benefits can be achieved.

By the various detectors in the array, Haku et al., No. 1. When the signal (1-ta) is combined, the bamboo tester will successively scan the same area of the test object one after another with a short delay of 18''. I have to.

My faith is broken! When combining i, the scan X corresponding to the part far from the rotation center of the slit of the rotary tisf 13,
A series of detectors along the V subsection of the 11-beam is more convenient!
8) It is necessary to perform an excessive phase correction because of the negative tIiν. , at the center of the image, or at the center of the image (i.e., where the active slit 14 is perpendicular to the length of the detector array 19, no phase correction is required by 6°; however, towards the edges of the image , the X-leg experienced by each detector at any instant (i.e., during the idle zumbling period) corresponds to the projection through the test object at 11th order of distance from the centerline of the array. Deru 3, therefore crossroads 1
] 'Before adding a series of line takes to form the NJ image, each combined take sample must correspond to a respective position equidistant from the center line (position in one sample). It is necessary to give an advantageous phase difference to a series of line data so that This phase difference may be corrected at once in each detector, or ↑Fit may be corrected by interpolation using a uniform non-wear measurement.

Instead of adding one data signal, four bundle hangers 1'11
By l'+l'+---, it's Haku. From fortune telling, Kaidezaki, 1
1 + m + - ... to pick up the signal 1 + m + -... Some number 1 - of the construction by VC (you may go 3, 1 + II + In) -・
...is 18 forces of energy x 1] and a detector]
'+II°-1-Ill''-... What, c6 that determines the higher Ei Luki X gland dl

[Brief explanation of the drawing]

Figure 1 shows the detection by this invention) (i array 1 has fluorescent X
Figures 1 and 2 of the i-direction device are the detector array in Figure 1, Figure 3 is Q, and Figure 21 is the δ of
'', J! A Glue at A [open-, Figure 4 is line 1 in Figure 2]
3 to B, and Figure 5 are applicable to the actual iL example of this invention.
Figure 6 is a valley) related to the operation at the scraping angle of the extraction height (11jr 1l of one detector showing the J-method)
Figure 1. 10: X-ray gap, 13: Rotating tisf, 14: Rotating slit, 16 Two solid boss slits, 18: #J, Trial 1, History'
Roast body, 19: Detector play, 21: Middle Moto phase, 22:7
Notilator screen, 22a:/inch screen, 22b: opaque plate, 23: first multiplier. 'jjli'l Output 1: IIT person American Niens &'2/Nonialink Incorporate Soto agent I''+1-!l!J・Small drawing IP)
(No change in content) 1.1, -1~> 1~ Hekute [L2 and -8 Procedural Amendment W (Method) (3) 11ij 41158 December 2311% Formula%, Title of Invention X-ray Detector: Relationship with the 3-drawer case Patent applicant American Science and Engineering Incorporated 4, Agent 6615 Aigoku Building, 4-2-21 Shinjuku, Shinjuku-ku, Tokyo Patent attorney Kusano Ni I-IL , “...(
1) Enter 1li5. in the patent applicant column of the application. +1 Edit it like a correction application. (21 The letter of appointment is unsealed. 51 of the drawings (no changes to the self-answer).

Claims (1)

[Claims] (IJ) A beam of radiant energy swept through the object to be tested in a predetermined direct direction
Because of the radiant energy #M which is made to 111) The detector array is oriented in the direction of A plurality of two long hollow members are arranged in parallel to each other in instant contact (ml), and the lengthwise direction of the central part of the valley (is the straight 1sj).
r! It is oriented parallel to the scanning direction, and the hollow part of the moon is made of a material that is transparent to radiant energy and reflects light photons.
The hollow member has an elongated rectangular root surface extending in the longitudinal direction of the frame, and is arranged to receive the radiant energy passing through the hollow part as the beam is swept in the direction of the trachea. The length of each membrane surface is at least equal to the orthogonal running length of the front six beams, and 11% of the membrane surface is When the beam is swept in the constant strain direction, the membrane surface receives only a portion of the beam, and the valley is the size of a portion of the long dimension of the cross section of the beam, and the valley of the scintillator is The membrane surfaces of the membrane are tilted to receive the portion of the beam at a scraping angle, different membrane surfaces receiving different portions of the beam and emitted by the membrane of the antitilator material. A plurality of photoresponsive elements for receiving a first light beam are connected to the hollow member of the hollow string;
(2) the elongated hollow member; each of the hollow members having a rectangular cross-section, and wherein the membrane surface of the scintillator material associated with each of the hollow members constitutes an inner surface of one of the hollow members. X described in Section 1
line detector. (,31'+il 815) Each of the hollow sections is a long and narrow parallel square prism, and the hollow sections are lined up one after another with the blood and body 7. +3iJ/
Notilator material; (1) an X-edge detector according to claim 1, wherein the valley membrane is implanted with one continuous note arranged between the east-twisted rows of the hollow tips; (4) The ff1fJ hollow parts of one row of the pair of rows are arranged evenly with respect to the hollow members of the other row. Paragraph 3 of the above-mentioned continuous/-
1. is the incident direction p of the beam toward the front 6C array 11C.
It is placed on the surface that contains the friction angle against c.
"Projected dimensions of the inclined sheet of the encircling material";
A special request request morning m1.2-: X-type 4 hanging device listed in Section 3.1, which has a size at least equal to the long sleeve dimension of the cross section of the beam in a direction perpendicular to the direction of travel of the beam; . (6) ff of the scintillator monthly fee! J: Self-membrane planes are mutually ('( is common: () I).
1. (7) The elongated rectangular membrane iMJ has each f3+j Q
α The center diameter of the beam has the same dimensions, so that the surface of the Tanimae eye 11' is made to be able to receive the horizontally symmetrical bone division of the beam. Monkey [,!
λ curvature 1 detector 1 described in Section 1, (8) Create a transmitted radiation beam and test that beam J'
An object f: a detector installed in a device that sweeps a radiant energy source through the object, the detector receiving radiant energy as it passes through the object. (5 includes a number of elongated hollow members transparent to the radiant energy, and the hollow member extends in the length direction thereof and responds to the incident radiant energy) The scintillator material includes an effacement film of the ζ-th scintillator material that emits the first scintillator material.
In the direction of incidence of the beam into the hollow part 4''A associated with the trap (of the change/ventilator material), set the angle of incidence of the beam to the hollow part 4''A. The position of the plurality of hollow members relative to each other and 111J i<711;+
The position with respect to j and the firf pulling direction of the front 1 heel and 1
11 - rii associated with each said hollow member in an angular direction;
The dimensions between the scintillators and the scintillators are selected so that the film surfaces of each hollow member receive different portions of the beam, respectively.
The light beam emitted by the older brother 1fC of 1 is Li
＞A sufficient number of photoresponsive elements to generate an output signal in response to
tt, coupled to a plurality of hollow shrines;
The opacity is beneficial to the radiant energy of the memorial, and the hanging device has a step. (9) The long inside members are arranged in a line in the direction away from the source of the radiation, so that the front beam is formed in the hollow part of the body. Claim No. 8 which is adapted to perform the following:
X-edge detector as described in section. , (10) 11 above. The long hollow members are arranged in rows of long hollow members, and the beams are simultaneously incident on different middle members of different L'IJ listings. The X-ray detector according to claim 8 of the patent claim. The X-ray detector according to claim 10, wherein the X-ray detector is arranged so as to be in a common plane. (9) is an X-ray detector according to claim 10, which is arranged parallel to each other; ,ts!l 1
jL: The detector includes an elongated hollow part made of a transparent material 11 which is oriented to the radiant energy, and the inner surface of the hollow base 1) is adapted to reflect the light beam 1), A means for hitting the hollow part A,1 in a low value relationship with the radiant energy source such that the hollow member is illuminated by the hollow member A,1 is disclosed. ) Te part (,11j-1
Receives nine-passing I-drawing energy/C-th inter-film light'・1
), including the elongated back of the burr, before: iL
: L9Q': The l river is flat with the shaft of the hollow ITS material ■
The path length of the radiant energy that passes through one block of the scintillator material T1 by forming a small friction angle with the direction of the beam or the path length of the radiant energy of the IjW light emitted by the IN of the hollow material and reflected by the IN of the hollow material; X IJ1 was designed to provide a means for receiving photons.
limit output, 4° (14),) i+ The nIJ film of the chiller material is set in the direction of the plane-bending beam ((-Illusion 2). iT φll Tagawa Paragraph 13 of the claim X h'44 ejector in the range 13th term Δα of the rib cap-lees VCed to be VC. (16) in, lI long j return r of the scintillator phase material.
L'', the X-ray detector of the J3JJ1st War of Waitrl-til'4, which is extended to the same length as the elongated Nakanitto Shrine. , (7) The thickness of the film after removing the non-tilator is 0.
．． ]-mm order. ,