Title:
【発明の名称】分光分析のための方法および装置
Document Type and Number:
Japanese Patent JP2003523510
Kind Code:
A
Abstract:
A method and apparatus for the spectrochemical analysis of a sample in which a solid state array detector (82) is used to detect radiation (62) of spectrochemical interest. The invention involves the use of a shutter (72) adjacent the entrance aperture (70) of a polychromator (74-80) to expose the detector (82) to the radiation (62) for varying lengths of time whereby for short duration exposure times charge accumulation in elements (i.e. pixels) of the detector (82) due to high intensity components of the radiation is limited and for longer exposure times charge accumulation in elements (pixels) of the detector (82) due to feeble intesity components of radiation (62) is increased. This ensures that each reading of the detector (82) includes at least one exposure in which the amount of charge accumulated at each wavelength of interest is neither too little or too great. The problems of feeble radiation components not being accurately measurable and of high intensity radiation components exceeding the charge carrying capacity of elements (pixels) of the detector (82) are thereby able to be avoided. An attenuator (90) may be placed between the radiation source (60) and the detector (82) to permit longer exposure times to be used for very high intensity radiation.
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Inventors:
Wilson, Philip Balmont
Mark Richard, Williams
Bricker, Dower Cameron
Hummer, Michael Ron
Martin Keith, Masters
Campbell, Stewart Ralph
Leighton, Peter George
Mark Richard, Williams
Bricker, Dower Cameron
Hummer, Michael Ron
Martin Keith, Masters
Campbell, Stewart Ralph
Leighton, Peter George
Application Number:
JP2001560638A
Publication Date:
August 05, 2003
Filing Date:
February 15, 2001
Export Citation:
Assignee:
Bearrian Australia Proprietary Limited
International Classes:
G01J3/02; G01J3/18; G01J3/28; G01J3/36; G01N21/27; G01N21/31; (IPC1-7): G01N21/27; G01J3/36
Domestic Patent References:
| JPS5716323A | 1982-01-27 | |||
| JPS6472018A | 1989-03-16 | |||
| JPH05340816A | 1993-12-24 | |||
| JPS58186964A | 1983-11-01 | |||
| JPH09145478A | 1997-06-06 | |||
| JPH11142240A | 1999-05-28 |
Attorney, Agent or Firm:
Fukami Hisaro (5 others)