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公开(公告)号：JP2005031017A
公开(公告)日：2005-02-03
申请号：JP2003272849
申请日：2003-07-10
Applicant: MATSUMOTO SHIGEAKI
Inventor： MATSUMOTO SHIGEAKI
Abstract: PROBLEM TO BE SOLVED: To provide a compact radiation absolute hygrometer that has a simple structure and can perform accurate measurement. SOLUTION: In the radiation absolute hygrometer having an ion chamber 10 equipped with a high-potential electrode 11 and a collector electrode 12 arranged in parallel, a radiation source 13 is provided on the side of the high-potential electrode 11 and the distance between the high-potential electrode 11 and the collector electrode 12 is set larger than the range distance of radiation. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2000105222A
公开(公告)日：2000-04-11
申请号：JP27502198
申请日：1998-09-29
Applicant: KAWAGUCHI TOSHIRO , YOSHIMURA ATSUSHI
Inventor： KAWAGUCHI TOSHIRO , YOSHIMURA ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To carry out a continuous humidity measurement by a simple constitution without permitting a leakage current to flow between electrodes even if the humidity is high. SOLUTION: In this hygrometer, a left side flat plate 1 of right and left conduction flat plates 1, 2 vertically provided in parallel while keeping a predetermined space is earthed through an ampere meter 3; and two sheets of right and left conductive center flat plates 4, 5 are interposed in parallel to the right and left conductive flat plates 1, 2 between the right and left conductive flat plates 1, 2 in a state of connecting to a battery 6 such that the left side center flat plate 4 becomes an anode. The two sheets of right and left conductive center flat plates 4, 5 are provided with an ionization chamber levitated in an air by a magnetic levitation with the battery 6; a radiation source 7 disposed at a lower required position between a left side flat plate 1 and a left side center flat plate 4 of the ionization chamber; and a draft mechanism such that a wind is ventilated to a space between the left side flat plate 1 and the left side center flat plate 4 of the ionization box.
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Patent Agency Ranking
公开(公告)号：JPS5710477A
公开(公告)日：1982-01-20
申请号：JP8552980
申请日：1980-06-23
Applicant: FUKUOKA HOUSHIYASEN KK
Inventor： TAKEI TSUTOMU , AKAGAWA TATSU
Abstract: PURPOSE:To measure a does as a variable-area does by a construction wherein a dosimeter consits of a high voltage electrode and a current collecting electrode being attached to a 3-layer plastic film. CONSTITUTION:A 3-layer plastic film 2-4 is spread within a ring-shaped frame 1 and a space is provided between the layers. A high voltage electrode 5 in the form of an aluminum foil is made to stick to either surface of the middle layer of the plastic film 3. A current collecting electrode 7 in the form of an aluminum foil is attached to the almost whole inside surface of the external layer of the plastic film 2, while a current electrode 8 in the form of a small piece of aluminun foil is attached to the inside surface in the center of the other external layer of the plastic film 4. A protective ring 9 in the form of aluminum foil is attached to the whole inside surface of the external layer of the plastic film 4 through a small gap t on the external perimeter of a current collecting electrode 8.
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公开(公告)号：JP2019144190A
公开(公告)日：2019-08-29
申请号：JP2018030582
申请日：2018-02-23
Applicant: 富士電機株式会社
Abstract: 【課題】電離箱に接続されるケーブルや電流検出器を削減して構成の簡略化、コストの低減を可能にしつつ、放射線による電離電流のみを高精度に検出可能とした電離箱式放射線検出装置を提供する。 【解決手段】高圧電極301及び信号電極302が内蔵されて電離ガスが封入される電離箱300と、MIケーブルであって高圧電極301に接続された電源用ケーブル100及び信号電極302に接続された信号用ケーブル200と、高圧電極301と信号電極302との間に高電圧を印加するための電源部400と、信号用ケーブル200に接続されて信号出力電流を測定し、所定の演算を行う信号処理部500と、を備え、信号処理部500は、電源部400により印加電圧の極性を反転させた各状態で第1,第2の信号出力電流を測定し、これらの差電流と電流感度とを用いて放射線の線量率を演算する。 【選択図】図1
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公开(公告)号：JPH02304851A
公开(公告)日：1990-12-18
申请号：JP12646489
申请日：1989-05-19
Applicant: AGENCY IND SCIENCE TECHN , ALOKA CO LTD
Inventor： MATSUMOTO TAKESHI , SAKIHARA KATSUHIKO , MATSUBARA SHOHEI
Abstract: PURPOSE:To directly perform measurement regarding 1cm deep dosage equivalent and to perform this measurement correctly by providing an adjusting board made of a metal board of a specific area and low energy adjusting films formed on the adjusting board. CONSTITUTION:An adjusting board 20 is provided on a collector 14 while the collector 14 is equipped with a disc part 14b at the tip of its support 14a wherein circular adjusting boards 20a, 20b having the same area are respectively adhered to the surface and the rear of this disc part 14b and further low energy adjusting films 22a, 22b are overlappingly formed on them. Since the adjusting board 20 is made of a metal board, radiation incident to the adjusting board 20 is to generated electron beam mainly by photoelectric effect in a low energy region and by mainly by Compton effect in an intermediate energy region so that radiation corresponding to 1cm deep dosage equivalent can be measured by these functions. Thus the value of 1cm deep dosage equivalent can be directly measured and can be correctly measured.
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公开(公告)号：JPS6124655B2
公开(公告)日：1986-06-12
申请号：JP8552980
申请日：1980-06-23
Applicant: Fukuoka Hoshasen Kk
Inventor： TAKEI TSUTOMU , AKAGAWA TATSU
CPC classification number: H01J47/04
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