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- 松田 久
- 大阪大学名誉教授
書誌事項
- タイトル別名
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- Ion Optics for the High Performance Mass Spectrometer of Doulbe Focusing Type.
- 高性能2重収束質量分析計のイオン光学
- コウセイノウ 2ジュウ シュウソク シツリョウ ブンセキケイ ノ イオン コウ
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抄録
Ion optics for the high performance mass spectrometer is investigated. In order to estimate the characteristics of a mass spectrometer numerically, a performance factor, PF, and an aberration factor, AF, are introduced and defined. The PF is defined as a product of four factors related to C/X (C, mass dispersion; X, image magnification), deflection angle of magnetic sector, total path length and ion beam transmission through magnet gap. Each factor consists of a ratio compared to the value for 180° magnetic analyzer. The AF is defined as a maximum resolving power calculated from the simulated image under the incident ion beam conditions of 1% spread of α, δ, y, β.<br>Almost perfect higher order focusing and high performance are attained by mass spectrometers with the field arrangement of QQHQC and QQQHQC (Q, quadrupole; H, homogeneous magnetic sector; C, cylindrical electric sector). In these mass spectrometers, the value of PF reaches 100 and that of AF 260,000.
収録刊行物
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- 質量分析
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質量分析 40 (6), 283-291, 1992
一般社団法人 日本質量分析学会
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詳細情報 詳細情報について
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- CRID
- 1390001206494293248
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- NII論文ID
- 130000259266
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- NII書誌ID
- AN0010555X
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- ISSN
- 05428645
- 18804225
- 18843271
- 13408097
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- NDL書誌ID
- 3810141
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可