JPH04147557A - Deuterium discharge tube - Google Patents
Deuterium discharge tubeInfo
- Publication number
- JPH04147557A JPH04147557A JP27039590A JP27039590A JPH04147557A JP H04147557 A JPH04147557 A JP H04147557A JP 27039590 A JP27039590 A JP 27039590A JP 27039590 A JP27039590 A JP 27039590A JP H04147557 A JPH04147557 A JP H04147557A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- slit
- discharge tube
- anode
- small hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 title claims description 15
- 229910052805 deuterium Inorganic materials 0.000 title claims description 15
- 239000011148 porous material Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005469 synchrotron radiation Effects 0.000 description 1
Landscapes
- Spectrometry And Color Measurement (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、分光光度計等の紫外線光源として用いられる
重水素放電管に係り、特に発光部構造の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deuterium discharge tube used as an ultraviolet light source in a spectrophotometer or the like, and particularly to an improvement in the structure of the light emitting part.
特開号昭５３−１２８１７３号に記載のように、重水素
放電管は、重水素ガスを使用し、陰、陽極間の陽極近傍
に配置した放電を狭窄するためのスリットの孔形状が約
φ１閤の円形の構造になっている。As described in Japanese Patent Application Laid-open No. 53-128173, a deuterium discharge tube uses deuterium gas, and the slit for constricting the discharge, which is placed near the anode between the negative and anode, has a hole shape of about φ1. It has a circular structure.
上記従来技術の重水素放電管に於いては、放電を狭窄さ
せるためのスリット孔の孔形状が円孔である。これに対
し、上記放電管を用いる分光光度計等の分析装置の光の
入射スリット形状はほとんどが短冊形状である。従って
、放電管より放射される光は、装置に備えた短冊形スリ
ットによって左右の光が大きく遮光され、放射光の使用
効率が低いという欠点があった。In the conventional deuterium discharge tube described above, the slit hole for constricting the discharge has a circular hole shape. On the other hand, most of the light incident slits of analyzers such as spectrophotometers using the discharge tube are rectangular. Therefore, the left and right sides of the light emitted from the discharge tube are largely blocked by the rectangular slits provided in the device, resulting in a disadvantage that the efficiency of using the emitted light is low.
本発明の目的は、放射光が高効率に使用できる重水素放
電管を提供することにある。An object of the present invention is to provide a deuterium discharge tube that can use synchrotron radiation with high efficiency.
上記目的を達成するために、重水素放電管が用いられる
分光光度計等装置の、入射スリット形状に合わせること
が望ましい。従って該放電管の放電を狭窄させるための
スリットの孔形状を装置の入射スリットと、概略同一形
状の孔形状を有す重水素放電管にすることにより、達成
できる。In order to achieve the above object, it is desirable to match the shape of the entrance slit of a device such as a spectrophotometer in which the deuterium discharge tube is used. Therefore, this can be achieved by making the deuterium discharge tube have a hole shape of a slit for constricting the discharge of the discharge tube that is approximately the same shape as the entrance slit of the device.
重水素放電管の主たる発光部は、放電を狭窄させるため
のスリットの孔部である。上記放電管を光源として用い
る分光光度計等の分析装置の光学系は、上記放電管の狭
窄放電部の孔形状の像をレンズまたは凹面鏡により分析
装置の短冊形入射スリット上に１：４〜１：５倍像に拡
大結像する様構成されている。このため、該放電管の放
電狭窄スリットの孔形状が円形孔の場合には１分析装置
の入射スリット上に円形像となり、装置の短冊形スリッ
トを通過する光束は極端に減少してしまう。The main light emitting part of a deuterium discharge tube is a slit hole for constricting the discharge. The optical system of an analyzer such as a spectrophotometer that uses the discharge tube as a light source uses a lens or a concave mirror to project an image of the hole shape of the constricted discharge part of the discharge tube onto the rectangular entrance slit of the analyzer at a ratio of 1:4 to 1. : It is configured to form a 5x magnified image. Therefore, if the discharge constriction slit of the discharge tube has a circular hole shape, a circular image will appear on the entrance slit of one analyzer, and the light flux passing through the rectangular slit of the analyzer will be extremely reduced.
しかし、該放電管の放電狭窄スリットの孔形状を装置の
入射スリット形状に合わせた短冊形にすると、装置の入
射スリット上には短冊形像が形成されるため、先便用の
効率が向上し、従って高輝度が得られる。However, if the hole shape of the discharge constriction slit of the discharge tube is made into a rectangular shape that matches the shape of the entrance slit of the device, a rectangular image will be formed on the entrance slit of the device, improving the efficiency of first delivery. , therefore high brightness can be obtained.
第１図は１本発明の一実施例である重水素放電管の横断
面図である。紫外線透過窓５を有する放電容器６内に、
陰極１．陽極２および遮蔽囲い４が設けられており２重
水素ガスが封入されている。FIG. 1 is a cross-sectional view of a deuterium discharge tube which is an embodiment of the present invention. In a discharge vessel 6 having an ultraviolet-transparent window 5,
Cathode 1. An anode 2 and a shielding enclosure 4 are provided and filled with diuterium gas.
遮蔽囲い４は、陰極１と陽極２をそれぞれ取り巻くよう
な構造をしており、陽極２と紫外線透過窓５との間の隔
壁には放電を狭窄するための小孔３が設けられている。The shielding enclosure 4 has a structure that surrounds the cathode 1 and the anode 2, respectively, and a small hole 3 for confining the discharge is provided in the partition wall between the anode 2 and the ultraviolet transmitting window 5.
陰極を囲んでいる隔壁にもスリット７が設けられている
。従って、放電は、陰極１からスリット７、小孔３を経
て、陽極２の間で発生する。小孔３による狭窄放電によ
って発生した紫外線は、紫外線透過窓５から取り出させ
る。A slit 7 is also provided in the partition wall surrounding the cathode. Therefore, discharge occurs between the cathode 1, the slit 7, the small hole 3, and the anode 2. The ultraviolet rays generated by the constricted discharge caused by the small holes 3 are extracted through the ultraviolet transmitting window 5.
第２図は、狭窄放電を生じさせる放電集束用スリットの
正面図を示す。実施例によれば、スリット８は、Ｍ、ｏ
金属を用い縦長の小孔を３を形成したものを用いた。小
孔は横０．４ｍ、縮２．５閣とした。FIG. 2 shows a front view of a discharge focusing slit that causes constriction discharge. According to the embodiment, the slit 8 has M, o
A metal plate with 3 vertically long small holes was used. The small hole was 0.4 m wide and 2.5 m in diameter.
また、第３図は、スリット８の縦断面図を示す。Further, FIG. 3 shows a longitudinal cross-sectional view of the slit 8.
図のように小孔３は、湾曲に絞り、狭窄放電が生じ易い
構造とした。上記構造の重水素放電管に於いて、通電放
電の３００ｍＡで点灯した場合、約３０％の光の利用率
が向上できた。As shown in the figure, the small hole 3 was constricted into a curved structure to facilitate constriction discharge. In the deuterium discharge tube having the above structure, when the tube was turned on with a current discharge of 300 mA, the light utilization rate could be improved by about 30%.
上記本発明の重水素放電管に於いて、短冊形入射スリッ
トを有す分光光度計との組合せにより、入射スリット上
に結像される像の拡大率を小さくすることが可能となり
、光利用率が向上させることが出来ると共に高い輝度で
の分析ができるため、Ｓ／Ｎ比の向上が図れる。In the deuterium discharge tube of the present invention, in combination with a spectrophotometer having a rectangular entrance slit, it is possible to reduce the magnification of the image formed on the entrance slit, thereby increasing the light utilization efficiency. Since it is possible to improve the brightness and perform analysis at high brightness, the S/N ratio can be improved.
第１図は本発明の実施例を示す重水素放電管の横断面図
、第２図は放電狭窄用スリットの正面図、第３図は放電
狭窄用スリットの縦断面図を示す６第
閃Fig. 1 is a cross-sectional view of a deuterium discharge tube showing an embodiment of the present invention, Fig. 2 is a front view of a slit for discharge constriction, and Fig. 3 is a longitudinal sectional view of the slit for discharge constriction.
Claims (1)
の入射スリットと概略同形状としたことを特徴とした重
水素放電管。 ２、発光部の孔形状を短冊状としたことを特徴とした特
許請求の範囲第１項記載の重水素放電管。[Scope of Claims] 1. A deuterium discharge tube, characterized in that the pore diameter of the light emitting part is approximately the same shape as the entrance slit of a spectrophotometer. 2. The deuterium discharge tube according to claim 1, wherein the hole shape of the light emitting portion is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27039590A JPH04147557A (en) | 1990-10-11 | 1990-10-11 | Deuterium discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27039590A JPH04147557A (en) | 1990-10-11 | 1990-10-11 | Deuterium discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04147557A true JPH04147557A (en) | 1992-05-21 |
Family
ID=17485664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27039590A Pending JPH04147557A (en) | 1990-10-11 | 1990-10-11 | Deuterium discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04147557A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0700072A3 (en) * | 1994-08-31 | 1997-05-21 | Hamamatsu Photonics Kk | Lighting device for gas discharge tube |
| EP0700071A3 (en) * | 1994-08-31 | 1997-05-21 | Hamamatsu Photonics Kk | Gas discharge tube |
| WO2000034981A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube and optical device |
| WO2000034983A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube |
| WO2000034982A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube |
-
1990
- 1990-10-11 JP JP27039590A patent/JPH04147557A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0700072A3 (en) * | 1994-08-31 | 1997-05-21 | Hamamatsu Photonics Kk | Lighting device for gas discharge tube |
| EP0700071A3 (en) * | 1994-08-31 | 1997-05-21 | Hamamatsu Photonics Kk | Gas discharge tube |
| WO2000034981A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube and optical device |
| WO2000034983A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube |
| WO2000034982A1 (en) * | 1998-12-09 | 2000-06-15 | Hamamatsu Photonics K.K. | Gas discharge tube |
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