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    RADIATION DETECTOR
    2.
    发明专利
    RADIATION DETECTOR 失效

    公开(公告)号：JPS5713381A

    公开(公告)日：1982-01-23

    申请号：JP8782780

    申请日：1980-06-30

    Applicant: ALOKA CO LTD

    Inventor： SATOU HIROO

    IPC: G01T1/20 ,  G01T1/00 ,  G01T1/167

    Abstract: PURPOSE:To enable the accurate measurement of radiation of a heating fluid specimen, by a method wherein a scintillator is closely adhered to the inside of a sample conduit which has a low thermal conductivity and a high transmission factor, and a light is shielded from the outside. CONSTITUTION:A fluid sample, which is in a heated state, is fed in the direction of an arrow mark A in a path of a sample conduit 28. A scintillator 30 is firmly and securely adhered to the inner surface of the sample conduit 28. The sample conduit is made of a material, such as quartz glass, having a low thermal conductivity and a high light transmission factor. One end of a transmitting part 32 is located in a manner to make close contact with a part of the sample conduit 28, the other end is led out to an atmosphere at the room temperature, and is positioned facing and opposite to a light-receiving surface of a photomultiplier. A light-shielding layer 34 is formed at the circumference of the sample conduit 28 and the light-leading part 32 to shield a light from the outside. This permits the accurate measurement of radiation of a fluid sample, being in a heated state, by means of a real time.

    MEASURING DEVICE OF RADIOACTIVITY
    3.
    发明专利
    MEASURING DEVICE OF RADIOACTIVITY 失效

    公开(公告)号：JPS5672376A

    公开(公告)日：1981-06-16

    申请号：JP14946879

    申请日：1979-11-20

    Applicant: ALOKA CO LTD

    Inventor： SATOU HIROO

    IPC: G01T1/20 ,  G01T1/167 ,  G01T7/00 ,  G01T7/02

    Abstract: PURPOSE:To continuously measure accurate radiant ray density in real time, by locating a plurality of scintillators assembled with radiant ray shield tube different in diameter in measured vessel. CONSTITUTION:In a cylindrical shape measuring vessel 10 made of copper, gold, and molybdenum less in the adsorption of radioactive substance, a plurality of scintillators 12-1-12-4 are provided along the flow path of fluid sample, and the radiant ray shield tubes 16-1-16-4 different in diameter are located around them. Thus, in measuring the radiant ray density of tritium gas flowing to the vessel 10 continuously, the measurements different in the efficiency are detected from the scintillators 12-1-12-4, and the density of radiant ray of radioactive substance in tritium gas or the like can be made for corrective operation by using the measurements to obtain accurate measurements without various causes to variance.

    Continuous measurement of tritium on real time
    8.
    发明专利
    Continuous measurement of tritium on real time 失效
    连续三次测量实时

    公开(公告)号：JPS59187280A

    公开(公告)日：1984-10-24

    申请号：JP6066483

    申请日：1983-04-08

    Applicant: Aloka Co Ltd ,  Asahi Chem Ind Co Ltd

    Inventor： KIMOTO KIYOUJI ,  EBISAWA MIKIO ,  KAGEURA YOSHIAKI ,  SATOU HIROO ,  MAEKAWA HIROSHI ,  MITO MASAYASU

    IPC: G01T1/167 ,  G01T1/178 ,  G01T7/02

    CPC classification number: G01T1/178

    Abstract: PURPOSE:To enable continuous measurement of tritium with a high sensitivity by separating tritium moisture from air containing the tritium moisture, radon or thoron employing a hollow yarn membrane made of a fluoride copolymer having a sulfonate group within a specified range of ion exchange capacity. CONSTITUTION:A hollow yarn membrane (a) 10-150mum thick made of a fluoride copolymer as milliequivalent/g H-type dry resin with the ion exchange capacity of 0.5-2.5 containing a duplicating unit of the formula I [(m) is 0 or 1 and (n) 2-5] is provided in a cell (f) being supported with a partition plate (g) with the inner diameter thereof set at 10-1,000mum to satisfy the formula II [IEC is a milliequivalent/g H-type dry resin and L the thickness (micron) of the hollow yarn membrane]. With such an arrangement, a sample air flows from the inlet (b) to the outlet (c) while a carrier gas flows from the inlet (d) to the outlet (e) to remove randon or thoron and thus, the correct concentration of tritium can be measured along with a less response time.

    Abstract translation: 目的：通过将含氚水分，氡气或钍气的氚水分与含有磺酸盐基团的氟化物共聚物制成的中空丝膜分离在离子交换容量的规定范围内，可以高灵敏度地连续测量氚。 构成：将含有式I [（m）的复制单元的离子交换容量为0.5-2.5的毫当量/ g H型干燥树脂的氟化物共聚物制成的中空丝膜（a）为0〜 或者1和（n）2-5]设置在由内径为10-1000μm的隔板（g）支撑的电池（f）中以满足式II [IEC是毫当量/ g H型干树脂和L中空丝膜的厚度（微米）]。 通过这样的布置，样品空气从入口（b）流到出口（c），同时载气从入口（d）流出到出口（e）以去除兰顿或钍气，因此，正确的浓度 可以测量氚的响应时间较短。

    PORTABLE X-RAY GENERATOR
    9.
    发明专利
    PORTABLE X-RAY GENERATOR 失效

    公开(公告)号：JPS58145098A

    公开(公告)日：1983-08-29

    申请号：JP2723782

    申请日：1982-02-22

    Applicant: ALOKA CO LTD

    Inventor： KOBAYASHI HIROSHI ,  ICHINOKAWA TAKEO ,  SATOU HIROO ,  MAEKAWA HIROSHI ,  NAKAOKA HIROSHI

    IPC: H01J35/00 ,  A61B6/00 ,  A61B6/14 ,  H05G1/06

    Abstract: PURPOSE:To improve controllability at use for medical treatment or the like, by integrally enveloping the base unit part of an X-ray tube, cell, charge circuit, high voltage generator circuit and control switch through an insulator and fully coating a device with a conductive material. CONSTITUTION:A base unit part 13 except a thin contour part 14 of an X-ray tube 11 having the part 14 emitting X-rays from its point end, rechargeable cell 31, charge circuit 33 having a core 37 wound with a coil 36 and able to be operated from the outside without using wiring connection by approximating a core 39 wound with a coil 38 from the outside, high voltage generator circuit 32, and remotely controlled switch 41 used with an optical fiber, optical switch, etc. are integrally molded by synthetic resin 34 and fully coated by a conductive material 35 to form a portable X-ray generator 30. Accordingly, the generator can be safely used for a medical treatment device, while the necessity for using a cable or the like can be eliminated and controllability can be substantially improved.

    SMALL X-RAY TUBE
    10.
    发明专利
    SMALL X-RAY TUBE 失效

    公开(公告)号：JPS58145049A

    公开(公告)日：1983-08-29

    申请号：JP2723682

    申请日：1982-02-22

    Applicant: ALOKA CO LTD

    Inventor： KOBAYASHI HIROSHI ,  ICHINOKAWA TAKEO ,  SATOU HIROO ,  MAEKAWA HIROSHI ,  NAKAOKA HIROSHI

    IPC: H01J35/14 ,  H01J35/24

    Abstract: PURPOSE:To easily perform focusing of an electron beam to a target, by arranging permanent magnets to the periphery of a small diameter part of a tube body and suitably selecting magnetic force of the permanent magnet and its position. CONSTITUTION:A tube body 12 is constituted by a major diameter part 13 and minor diameter part 14 and the inside is evacuated or sealed with gas. A point filament 15 for generating an electron beam is arranged in the inside of the part 13. While a target 17 for converting the electron beam to X-rays is arranged at the tip of the part 14. Further one or plural annular permanent magnets 20 are provided to the periphery of the part 14, and a position of the magnet can be suitably moved and adjusted along the part 14. Suitable selection of magnetic force and the position of said magnet 20 can focus to permit the electron beam to efficiently collide against a small area part of the target 17.

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