Luminescent reaction measurement device
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IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0474716
(2002-04-11)
|
우선권정보 |
JP-2001-114239(2001-04-12) |
국제출원번호 |
PCT/JP02/003626
(2002-04-11)
|
§371/§102 date |
20040723
(20040723)
|
국제공개번호 |
WO02/086471
(2002-10-31)
|
발명자
/ 주소 |
- Suzuki,Yoshihito
- Kamiya,Akifumi
|
출원인 / 주소 |
- Hamamatsu Photonics, K.K.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
Light resulting from chemiluminescence inside a reaction chamber 4 is transmitted through a light transmitting window 3, a large part of the light is made incident on a photoelectric surface 71 of a photomultiplier tube 2 to generate photoelectrons, and these photoelectrons are successively multipl
Light resulting from chemiluminescence inside a reaction chamber 4 is transmitted through a light transmitting window 3, a large part of the light is made incident on a photoelectric surface 71 of a photomultiplier tube 2 to generate photoelectrons, and these photoelectrons are successively multiplied by surfaces 79 at one side of dynodes 78a, 78, and 78b. Meanwhile, a part of the light that is not made incident on photoelectric surface 71 is made incident on and reflected by a surface 77 at the other side of dynode 78 a, returned to reaction chamber 4 via light transmitting window 3, reflected further by light reflecting surfaces 40 and 41 inside reaction chamber 4, emitted again from light transmitting window 3, and made incident on photoelectric surface 71 of photomultiplier tube 2 to generate and multiply photoelectrons in the same manner as the above. The amount of light made incident on photoelectric surface 71 is thus increased by the amount corresponding to the reflection at surface 77 at the other side of the dynode, thereby enabling detection of light caused by weak chemiluminescence.
대표청구항
▼
What is claimed is: 1. A luminescent reaction measurement device, which makes a sample gas and an oxidizing gas react in a reaction chamber and detects, by means of a light detector, the intensity of the light resulting from the chemiluminescence that occurs during said reaction, wherein inner surf
What is claimed is: 1. A luminescent reaction measurement device, which makes a sample gas and an oxidizing gas react in a reaction chamber and detects, by means of a light detector, the intensity of the light resulting from the chemiluminescence that occurs during said reaction, wherein inner surfaces of said reaction chamber are arranged to be light reflecting, and said reaction chamber is equipped with a light transmitting window that makes said light due to chemiluminescence in said reaction chamber be emitted therefrom towards said light detector that is installed outside said reaction chamber, said light detector is a side-on type photomultiplier tube, comprising a cylindrical container, into which emitted light due to chemiluminescence enters through a peripheral surface, a reflecting type photoelectric surface for photoelectrically converting said light due to chemiluminescence that has entered inside said container and generating photoelectrons, and plurality of dynodes, each having, on a surface at one side, a secondary electron emission surface that emits secondary electrons upon incidence of electrons and thereby successively multiplying and outputting said photoelectrons, and at least one of said dynodes receives, on a surface at a second side, said light due to chemiluminescence that has entered through said peripheral surface and reflects it toward said light transmitting window of said reaction chamber. 2. The luminescent reaction measurement device as set forth in claim 1, wherein the surface at the second side of the dynode that receives and reflects said light due to chemilumiescence is formed of gold. 3. The luminescent reaction measurement device as set forth in claim 1, wherein the dynode that receives and reflects said light due to chemiluminescence by the surface of the second side is a first dynode that first receives the photoelectrons generated by said photoelectric surface. 4. The luminescent reaction measurement device as set forth in claim 2, wherein the dynode that receives and reflects said light due to chemiluminescence by the surface of the second side is a first dynode that first receives the photoelectrons generated by said photoelectric surface. 5. The luminescent reaction measurement device as set forth in claim 1, wherein said photomultiplier tube is equipped with a cooling device that cools said photoelectric surface. 6. The luminescent reaction measurement device as set forth in claim 2 wherein said photomultiplier tube is equipped with a cooling device that cools said photoelectric surface. 7. The luminescent reaction measurement device as set forth in claim 3 wherein said photomultiplier tube is equipped with a cooling device that cools said photoelectric surface. 8. The luminescent reaction measurement device as set forth in claim 4 wherein said photomultiplier tube is equipped with a cooling device that cools said photoelectric surface.
이 특허에 인용된 특허 (6)
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Parks Robert E. (Houston TX), Chemiluminescent sulfur detection apparatus and method.
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Etess Edward (La Jolla CA) Budd Allan L. (San Diego CA), Dual channel nitrogen oxides analyzer.
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Verostko Charles E. ; Atwater James E. ; Akse James R. ; DeHart Jeffrey L. ; Wheeler Richard R., Fiber-optic chemiluminescent biosensors for monitoring aqueous alcohols and other water quality parameters.
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Tachino Masumi,JPX ; Kume Hidehiro,JPX ; Kimura Suenori,JPX ; Goto Takashi,JPX, Photomultiplier with magnetic shielding case.
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Tachino Masumi,JPX ; Kume Hidehiro,JPX ; Kimura Suenori,JPX ; Goto Takashi,JPX, Side-on type photomultiplier.
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Tachino Masumi,JPX ; Kume Hidehiro,JPX ; Kimura Suenori,JPX ; Goto Takashi,JPX, Side-on type photomultiplier comprising an envelope having an opening, a lens element, and a lens positioning structure.
이 특허를 인용한 특허 (1)
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Kreft, Norbert, Device for determining the concentration of at least one gas in a sample gas stream.
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