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91. 发明专利

JPH09113631A FOREIGN MATTER DETECTOR USING X RAY 失效
公开(公告)号：JPH09113631A
公开(公告)日：1997-05-02
申请号：JP29213695
申请日：1995-10-13
申请人： ISHIDA SEISAKUSHO
发明人： ISHINAMI MASARU
IPC分类号： G01N23/04 , G01V5/00
摘要： PROBLEM TO BE SOLVED: To always clearly discriminate the presence of foreign matters in an object under inspection without requiring the adjustment, etc., of the amount of irradiating x rays even when the object has a different size at the time of inspecting the foreign matter in the object from the transmitting state of the X rays. SOLUTION: A foreign matter detector is constituted in such a way that, when the item of an object of be inspected is designated from the input section 12a of a manipulating device 12, the data for setting the irradiating amount of X rays to the item are read out from the storing section 11c of a controller 11. At the same time, the thickness of the object is measured by means of measuring instrument 8 before the irradiation of the X rays is started and the irradiating amount is set from the measured thickness and the data read out from the section 11c.

92. 发明专利

JPH08220245A DEVICE FOR MEASURING PULSE-TRANSMITTING SPECTRUM OF ELASTIC SCATTERING X-RAY PHOTON 失效
公开(公告)号：JPH08220245A
公开(公告)日：1996-08-30
申请号：JP30599695
申请日：1995-11-24
申请人： PHILIPS ELECTRONICS NV
发明人： JIYOFURII HAADEINGU
IPC分类号： G01N23/04 , G01N23/201 , G01T1/29 , G01T1/36 , G01V5/00 , G21K1/02 , G21K5/02
摘要： PROBLEM TO BE SOLVED: To shorten the inspection time by disposing a pair of X-ray sources at an equal distance while intersecting a beam axis connecting the center of detectors at a predetermined angle and disposing semicircular primary and secondary slits in relation to both beam axes. SOLUTION: An X-ray source 30 is disposed at the same distance as an X-ray source 20 from the surface 42 of a detector such that the beam axes 23, 33 connecting the X-ray source 20, 30 and the center of 48 of detector intersect at a predetermined angle. The beam axes 23, 33 are related to semicircular temporary slits 21, 31 and secondary slits 25, 35. The slits 31, 35 surrounding the beam axis 33 (341, 342) are opened oppositely to the slits 21, 25 surrounding the beam axis 23 (241, 242). Each slit 21, 25, 31, 35 has the opposite ends flush with a plane defined by the beam axes 23, 33. According to the structure, the area of an object to be inspected simultaneously is enlarged and the time required for the inspection is saved.

93. 发明专利

JPH08122440A METHOD AND APPARATUS FOR REMOVING BACKGROUND AND RADIATION MEASURING APPARATUS 失效
公开(公告)号：JPH08122440A
公开(公告)日：1996-05-17
申请号：JP25376694
申请日：1994-10-19
申请人： ARAKI HARUMI
发明人： ARAKI HARUMI
IPC分类号： G01V5/00 , G01T1/167 , G01T1/17 , G01T1/20
摘要： PURPOSE: To remove background from a measurement of γ-value by subtracting the radiation dose in high energy band contiguous to some energy band from the radiation dose detected in that band. CONSTITUTION: A subtractor 14 in a correction circuit 12 subtracts a Compton scattering component C3 from the output value thoron Tn from a γ-ray detector 10 and outputs a corrected value, i.e., the detected thoron value from which the Compton scattering component of background is removed. Similarly, a Compton scattering component C2 is subtracted 16 from a radon Rn and a corrected radon value is outputted. A divider 18 divides the radon Rn by the thoron Tn and multiplies 20 the qoutient by the component C. Furthermore, potassium K is multiplied by 4/3 and a subtractor 24 subtracts the output 20 therefrom thus outputting a corrected value, i.e., a detected value of potassium from which the background is removed. A coefficient unit 26 (28) multiplies the Compton scattering component C1 (scattered γ-ray γs ) by 4/5 (4/3) and a subtractor 30 subtracts the output 26 from the output 28 thus outputting a corrected value, i.e., a detected value of scattered γ-ray from which the background is removed.

94. 发明专利

JPH0815493A WASTE DISPOSAL METHOD 失效
公开(公告)号：JPH0815493A
公开(公告)日：1996-01-19
申请号：JP14790094
申请日：1994-06-29
申请人： NIPPON ISOTOPE KYOKAI , NGK INSULATORS LTD
发明人： FURUKAWA OSAMU , SHIBATA MINORU
IPC分类号： G01N23/04 , B03B13/06 , B07C5/346 , G01V5/00 , G21F9/32
摘要： PURPOSE:To automatically separate a bag-filled glass from lead which is not suitable and protect an operation rate of an incineration from being lowered by irradiating bag-filled waste with an X-ray, image-processing an irradiation image, counting the total number of pixels of a part of a specified range in accordance with metal and glass light receiving part gradation and comparing it with the predetermined number. CONSTITUTION:Bag-filled waste immediately before a charge inlet 9 of an incinerator 8 is irradated with an X-ray from an X-ray irradiation device 15. X-ray intensity indicates metal light receiving part gradation shows 140-160, and the number of pixels corresponding thereto indicates 10-1000. For instance, X-ray generation voltage is set at about 65KV and X-ray generation current at about 2mA so that glass light receiving part gradation may indicate 160-180 and the number of the pixels corresponding thereto may show 1000-3000. And an obtained irradation ray image is successively read along a scanning ray and a signal level is found. After noise is removed by smoothing processing from the signal level and the image is stressed, the total number of pixels is found, compared with a threshold and metal and glass are removed. Thereby a filter is filled with gasificated lead and refractories are protected from deteriorating by molten glass.

95. 发明专利

JPH07505216A 失效
公开(公告)号：JPH07505216A
公开(公告)日：1995-06-08
申请号：JP50925992
申请日：1992-05-15
IPC分类号： G01N23/18 , G01N23/04 , G01V5/00

96. 发明专利

JPH06201837A INVESTIGATING APPARATUS OF MAGMA ACTIVITY DIRECTION 失效
公开(公告)号：JPH06201837A
公开(公告)日：1994-07-22
申请号：JP36193092
申请日：1992-12-25
申请人： RIKEN DENSHI CO LTD
发明人： YASUNAGA SOICHIRO
IPC分类号： G01T3/00 , G01T7/00 , G01V1/00 , G01V5/00 , G01V5/02
摘要： PURPOSE:To grasp the activity situation of magma by a method wherein a thermal-neutron detection sensor is surrounded by a Cd cylindrical shield which is provided with a window and by a neutron moderator, a cylinder including the moderator is turned around a shaft at low speed and neutrons from the window are received. CONSTITUTION:A cadmium shield cover 8 is turned so as to be interlocked with a synchronous motor 3 and an encoder 4, and also a window around a neutron sensor 5 is turned. In addition, the intrusion of neutrons from the upper part is shielded by a cadmium plate. When the neutrons are incident on the sensor 5, pulses are generated, and they enter a thermal recorder 15 through an amplifier 10. The encoder 4 gives clock pulses to the recorder 15. When the window is directed to the flying direction of the neutrons, the sensor 5 generates more pulses, and the recorder 15 records them. When both the flying direction and the detection amount of the neutrons are found out, a region where the activity of magma is active can be found out.

97. 发明专利

JPH0646185B2 失效
公开(公告)号：JPH0646185B2
公开(公告)日：1994-06-15
申请号：JP31094886
申请日：1986-12-29
IPC分类号： G01N23/04 , G01N23/10 , G01N33/00 , G01N33/02 , G01V5/00

98. 发明专利

JPH06138252A X-RAY INSPECTION DEVICE 失效
公开(公告)号：JPH06138252A
公开(公告)日：1994-05-20
申请号：JP28988292
申请日：1992-10-28
申请人： TOSHIBA CORP
发明人： KOSUGE HIDEO , UYAMA KIICHIRO
IPC分类号： B07C5/346 , G01N23/04 , G01V5/00 , G21K1/02
摘要： PURPOSE:To equalize inspection resolution over the whole scanning range of X-ray beams. CONSTITUTION:An opening formed by a fixed slit 2 and a rotating slit 3 makes a round trip in the longitudinal direction of the slit 3 as a rotary disc 4 rotates within the whole range of the angle of deflection of X-ray beams. At a position where the angle of rotation of the disc 4 is different by phi0 in + or - direction, the X-rays pass the same position of the slit 3. The inside surface of the slit 3 is formed into two slopes 3a, 3b of inclination matching the distance from the center O of the disc 4 so that the apparent area of the opening is always uniform relative to changes in the angle theta of deflection of the X-rays, and the slopes 3a, 3b are in symmetry with respect to the center of the slit 3. Therefore, the apparent area of the opening is changed in such a way as to be held constant relative to changes in the angle theta of deflection of the beams and so inspection resolution can be equalized over the whole scanning range of the X-ray beams.

99. 发明专利

JPH05323039A RADIATION INSPECTOR 失效
公开(公告)号：JPH05323039A
公开(公告)日：1993-12-07
申请号：JP12835192
申请日：1992-05-21
申请人： TOSHIBA CORP
发明人： YAMAMOTO TERUO , TSUCHIYA TAKEO
IPC分类号： B65H43/08 , G01N23/04 , G01V5/00
摘要： PURPOSE:To provide a radiation inspector by which a clear image can be formed without increasing the installation area. CONSTITUTION:A first X-ray scanning mechanism is built on one side of an X-ray tube 1 and a rotary disc 5A, a collimator 9A, a scattered X-ray detector 6A and a transmission X-ray detector 11A are arranged. A second X-ray scanning mechanism is built on the other side of the X-ray tube 1 and a rotary disc 5B, a collimator 9B, a scattered X-ray detector 6B and a transmission X-ray detector 11B are arranged. An arm 10b is provided as attitude changer between conveyors 12A1 and 12A2 and 12B1 and 12B2.

100. 发明专利

JPH0582556B2 失效
公开(公告)号：JPH0582556B2
公开(公告)日：1993-11-19
申请号：JP13594584
申请日：1984-06-30
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： NISHIDE AKIHIKO , NUMAGAMI HIDEO
IPC分类号： G01N23/04 , G01V5/00 , G01V8/10

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