-
公开(公告)号：JPS6244947A
公开(公告)日：1987-02-26
申请号：JP18486685
申请日：1985-08-21
Applicant: SHIMADZU CORP
Inventor： KUBODERA TOSHIYA , ITOI HIROTO
Abstract: PURPOSE:To prevent intrusion of such ion as having no interest into the analyzing section by forming the ion source box with three-dimensional tetra electrodes while making an ion take-out hole through one endcap and taking out such ions as higher/lower than specific m/z. CONSTITUTION:Analyzing sample is led through a gap between a ring electrode 4 and an endcap electrode 6 into an ion source where it is impinged against an electron beam and ionized. When applying voltage onto the ring electrode 4 and the endcap electrodes 6, 8, m/z ions having unstable Z-axis are projected through an ion take-out hole 14 then taken out through ion take-out electrode 16 and led through an aperture 18 to the analyzing section 20. When employing this ion source as chemical ionization ion source, reaction gas as well as analyzing sample are led into the ion source where the reaction gas led through a gap between the ring electrode 4 and the endcap electrode 6 into the ion source. When applying high frequency voltage and D.C. voltage, three-dimensional tetra electrode can stabilize/unstabilize the ions within random m/z range.
-
公开(公告)号：JPS61133547A
公开(公告)日：1986-06-20
申请号：JP25469384
申请日：1984-11-30
Applicant: Shimadzu Corp
Inventor： MIISHI KOUZOU , KUBODERA TOSHIYA
Abstract: PURPOSE:To increase the amount of ions introduced into the mass spectrometer and enhance the analysis sensitivity by arranging anion focusing lens between front and rear orifices in the mass spectrometer. CONSTITUTION:An electromagnetic lens 12, whose luminous axis is a line connecting the respective centers of a nozzle 9 and skimmer 8, is arranged, as an ion focusing lens, inside the first chamber 7. A part of plasma under atmospheric pressure is absorbed into the first chamber 7 from the nozzle 9 to form molecular beams. Though the molecular beams are likely to spread out at right angles to themselves, only ions in the molecular beams are selectively prevented from spreading out by the mutual action between the magnetic field of electromagnetic lens 12 and the movement of ions, which are accelerated with a few V of positive potential of plasma to the nozzle 9, caused by electron scattering. This composition serves the first chamber 7 as a separator in which molecular beams are separated into neutral molecules and ions, and then ions in condensed conditions are projected into the inside of the second chamber 4.
Abstract translation: 目的：通过在质谱仪前后排列阴离子聚焦透镜，增加引入质谱仪的离子量，提高分析灵敏度。 构成：将发光轴线连接喷嘴9和撇渣器8的各个中心的线的电磁透镜12作为离子聚焦透镜配置在第一室7的内部。大气压下的等离子体的一部分被吸收到 第一室7从喷嘴9形成分子束。 虽然分子束很可能与其自身成直角扩散，但只有分子束中的离子才能通过电磁透镜12的磁场与离子的移动之间的相互作用被选择性地防止扩散， 由电子散射引起的等离子体对喷嘴9的正电位几V。 该组合物用作分隔器的第一室7，其中分子束被分离成中性分子和离子，然后冷凝条件下的离子投射到第二室4的内部。
-
公开(公告)号：JPS59177848A
公开(公告)日：1984-10-08
申请号：JP5333083
申请日：1983-03-28
Applicant: Shimadzu Corp
Inventor： KUBODERA TOSHIYA , OOE HEIZABUROU
CPC classification number: H01J49/145
Abstract: PURPOSE:To suppress the outflow of reaction gas without decreasing the incidence efficiency of electrons by providing an ionization chamber with an ionization-electron- incoming hole consisting of a plural number of minute holes. CONSTITUTION:An ionization box (B) is provided with an ion-outgoing hole (a), a sample introduction hole (b), an electron-incoming hole (c) and a reaction-gas introduction hole (d). A filament (F) is placed outside the ionization box (B) and installed facing the electron-incoming hole (c). An electron-accelerating voltage of between the order of ten volts and the order of hundred volts is applied across the filament (F) and the ionization box (B). As a result, electron currents discharged from the filament (F) become an electron-ray flux perpendicular to the side surface of the box (B) and electrons corresponding to the electron-incoming hole (c) on the cross section of the electron-ray flux enter into the box (B). When two electron-incoming holes (c) with a diameter of 0.28mm. are provided for example, the amount of gas flowing out from the box (B) can be made 1/1.4 of that caused when an electron-incoming hole (c) with a diameter of 0.40mm. having the same surface area as the total surface area of two holes (c) with a diameter of 0.28mm. while mainitaining the incidence efficiency of electrons. Therefore an ion source in which the outflow of gas is suppressed can be obtained.
Abstract translation: 目的：通过为离子化室提供由多个微孔组成的离子化电子入射孔，来抑制反应气体的流出而不降低电子的发生率。 构成：电离箱（B）具有离子输出孔（a），试样导入孔（b），电子入射孔（c）和反应气体导入孔（d）。 灯丝（F）被放置在电离箱（B）的外部并面向电子入射孔（c）安装。 在灯丝（F）和电离盒（B）之间施加十伏数量级和一百伏特的电子加速电压。 结果，从灯丝（F）放出的电子流变成垂直于盒子（B）的侧面的电子射线，并且与电子发射器件的横截面上的电子入射孔（c）相对应的电子， 射线通量进入盒子（B）。 当两个电子入射孔（c）直径为0.28mm时。 例如，从盒（B）流出的气体量可以是当直径为0.40mm的电子入射孔（c）时引起的气体量的1 / 1.4。 具有与直径为0.28mm的两个孔（c）的总表面积相同的表面积。 同时主导电子的发生率。 因此，可以获得抑制气体流出的离子源。
-
公开(公告)号：JPH01321337A
公开(公告)日：1989-12-27
申请号：JP15744688
申请日：1988-06-23
Applicant: SHIMADZU CORP
Inventor： TAKADA MICHINOSUKE , KUBODERA TOSHIYA
Abstract: PURPOSE:To enable the setting of optimum measuring conditions by providing a light receiving section with a single photo detector and a driving mechanism to move the photo detector in response to a scanning with an optical scanner so that the photo detector is always located at a position opposite to the optical scanner. CONSTITUTION:As a rotary drum 2 is turned, an optical scanner 12 and a light receiving section 30 are rotated. The scanner 12 has a reflector 26 oscillated with a motor and a light beam 24 from a light source scans to cover an area to be measured of an object to be inspected to be detected with a photo detector 34 moving maintaining an opposite positional relationship with a reflector 26. In this manner, with the turning of a drum 2, a radiating position of the light beam 24 with respect to the object to be inspected is changed along a circumferential direction centered on the object to be inspected at a fixed pitch over the entire circumference. This enables the setting of optimum measuring conditions to match the object to be inspected.
-
公开(公告)号：JPH01173839A
公开(公告)日：1989-07-10
申请号：JP33488687
申请日：1987-12-28
Applicant: SHIMADZU CORP
Inventor： TAKADA MICHINOSUKE , KUBODERA TOSHIYA
IPC: G01J3/45
Abstract: PURPOSE:To provide the title spectroscope which is small in size, robust and inexpensive by driving a detector and interference fringes relatively along a surface on which the interference fringes are formed, thereby scanning the interference fringes. CONSTITUTION:The ray from a light source S is split to two rays (a), (b) by a translucent mirror BS and the bisected two luminous fluxes are reflected by reflecting mirrors M1, M2 and are joined by a translucent mirror BS. A lens mirror L is placed on the two rays (a), (b) which hare directed in the directions parallel with each other by the translucent mirror BS. The rays past the lens L are projected on a photodetector K. The detector K moves back and forth in arrow direction along the focal plane on the focal plane of the lens L. The image of the light source S, when viewed from the lens L, is divided two images which appear to be arrayed apart by 2 a according to this constitution. The interference fringes of an equal angle of inclination are formed on the focal plane of the lens L with such images S1, S2 as the light sources. The detector K is moved vertically and the scanning of the interference fringes by the detector K is executed.
-
Patent Agency Ranking
公开(公告)号：JPS62168331A
公开(公告)日：1987-07-24
申请号：JP28707885
申请日：1985-12-20
Applicant: SHIMADZU CORP
Inventor： KUBODERA TOSHIYA , TAKEDA TAKEHIRO
Abstract: PURPOSE:To simplify the putting in and out works of a collision chamber and shorten the time of evacuation, by installing a slit and the collision chamber side by side on a same base plate, and making the base plate slide in a direction vertical to the orbit of ions from the outside of a vacuum receptacle. CONSTITUTION:A collision chamber (C) is installed on a base plate (P) beside a slit (S). The collision chamber is one box, and its front and rear walls in an ion transmission direction are provided with openings (a) through which ions are able to be transmitted, so that a gas for activating the cillision can be introduced. Then, either the slit (S) or the collision chamber (C) can be located on the orbit (Ob) of ions, by sliding the base plate (P). Thus, they can be switched simply and quickly, and the vacuum of a mass spectrograph is not broken, so that the time of evacuation can be shortened.
-
公开(公告)号：JPS6264042A
公开(公告)日：1987-03-20
申请号：JP20415885
申请日：1985-09-13
Applicant: SHIMADZU CORP
Inventor： MIISHI KOZO , SHIMAZU KOZO , KURATANI YUICHI , TAKEDA TAKEHIRO , KUBODERA TOSHIYA
Abstract: PURPOSE:To enable easy maintenance, long life of a scintillator and measurement in a wide dynamic range, by providing the scintillator near the last stage of a secondary electron multiplier and selecting two measurement modes, high sensitivity mode and normal measurement mode. CONSTITUTION:Mode 1 is selected by operating switches S1-S3 to disconnect a dynode Dyn at the last stage from a dividing resistor and connect it to an amplifier 38, in order to amplify ion current incident on Dy1 and feed it to a signal processing circuit. Voltage -Vs is impressed from a high voltage power soppy 34 on the metal film 24 of a scintillator 22 to repel electrons emitted from Dyn. In the case of mode 2, switches S1-S3 are placed on 'a'- contact side with voltage -Vd impressed on Dy1 from a high voltage power supply 32 and divided voltages impressed respectively on Dy1-Dyn. Voltage +Vs is impressed on the scintillator 22 by the power supply 34 to accelerate incident ion current, which has been amplified an Dy1-Dyn, and convert it into photons which are then fed to amplifier 38 via a photomultiplier 30.
-
公开(公告)号：JPS6226757A
公开(公告)日：1987-02-04
申请号：JP16527785
申请日：1985-07-25
Applicant: SHIMADZU CORP
Inventor： MIISHI KOZO , KUBODERA TOSHIYA
Abstract: PURPOSE:To automate operation of an inductive coupling plasma mass spectrograph by controlling starting and suspension of the operation of the mass spectrograph by comparing the variation in the amount of light from inductive coupling plasma, which results from sample introduction and is detected by a photodetector which is installed in the mass spectrograph, with a predetermined level. CONSTITUTION:Ions produced in an inductive coupling plasma torch 2 are collected by a sampling nozzle 8, converged by a convergent lens system 12 and then introduced into a tetrode rod 16 to separate the ions according to mass. Then, the separated ion groups are introduced into a secondary electron duplicator tube 18 and subjected to mass spectrography. A photodiode 20 used as the photodetector is installed on the central axis of the tetrode rod 16 in order to monitor the light of inductive coupling plasma. Variation in the optical amount of the inductive coupling plasma resulting from sample introduction is detected by the photodiode 20 and the detection result is delivered to a scanning control circuit 26. Operation of this mass spectrograph is started when the detection result is the same or higher than a predetermined level and stopped when the detection result is lower than the set level. Due to the above structure, it is possible to automate measurement by positively utilizing the light from the plasma.
-
公开(公告)号：JPS61128455A
公开(公告)日：1986-06-16
申请号：JP24993884
申请日：1984-11-26
Applicant: Shimadzu Corp
Inventor： KUBODERA TOSHIYA , TAKEDA TAKEHIRO
CPC classification number: H01J49/02 , H01J49/326
Abstract: PURPOSE:To easily establish switching between common mass analysis and analysis of ion split reaction caused by collision activation by slidably moving an integrally coupled ion source slit and collision chamber in the direction crossing with the ion track. CONSTITUTION:A double convergence mass analyzer capable of analyzing ion split reaction caused by collision activation by a linked scan method is formed so that an integrally coupled collision chamber CC and ion source slit Si can be slidably moved in the arrow mark A direction, perpendicular to an ion track O. For an ordinary mass analysis, the ion source slit Si is positioned on the track, and on the other hand, for the analysis utilizing the linked scan method of ion split caused by collision activation, the slit Si is withdrawn to position the collision chamber CC on the ion track. Thereby, contamination of the colli sion chamber can be prevented and a process for positioning it can also be omitted.
Abstract translation: 目的：通过在与离子轨道交叉的方向上滑动移动整体耦合的离子源狭缝和碰撞室，容易地建立通常的质量分析和碰撞激活引起的离子分离反应分析。 构成：能够通过连接的扫描方式分析由碰撞激活引起的离子分离反应的双重收敛质量分析器被形成为使得整体耦合的碰撞室CC和离子源狭缝Si能够沿箭头A方向可滑动地移动，垂直于 离子轨道O.对于通常的质量分析，离子源狭缝Si位于轨道上，另一方面，为了利用由碰撞激活引起的离子分裂的链接扫描方法进行分析，将狭缝Si取出到 将碰撞室CC定位在离子轨道上。 由此，可以防止混凝土室的污染，也可以省略对其进行定位的工序。
-
公开(公告)号：JPS59184445A
公开(公告)日：1984-10-19
申请号：JP5732583
申请日：1983-03-31
Applicant: Shimadzu Corp
Inventor： MIISHI KOUZOU , KUBODERA TOSHIYA
CPC classification number: H01J49/16
Abstract: PURPOSE:To enable the spectra of different substances to be simultaneously obtained so as to enable accurate measurement of the mass of a sample by using two emitters the currents of which can be separately controlled. CONSTITUTION:A sample the accurate mass of which is to be determined, is fixed to an emitter 1. A reference sample is fixed to an emitter 2. A current region in which the mass spectra of these substances are obtained, is measured beforehand. After current-controlling circuits 10 and 11 are adjusted in such a manner that the emitters 1 and 2 simultaneously enter a current region in which the two substances indicate their respective mass spectra, current feeding to the emitters 1 and 2 is started. As a result, the mass spectra of the two substances appear simultaneously, thereby enabling the distance between the two spectra to be directly measured. Consequently, the accurate mass of the sample substance can be obtained.
Abstract translation: 目的：使得能够同时获得不同物质的光谱，以便通过使用两个发射体来准确测量样品的质量，其中电流可以单独控制。 规定：要确定其准确质量的样品固定在发射体1上。参考样品固定在发射体2上。事先测量其中获得这些物质的质谱的当前区域。 在电流控制电路10和11被调整为使得发射器1和2同时进入两个物质指示它们各自的质谱的当前区域之后，开始向发射器1和2的电流馈送。 结果，两种物质的质谱同时出现，从而可以直接测量两个光谱之间的距离。 因此，可以获得样品物质的准确质量。
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.022 seconds)
