The sTOF,a Favorable Geometry for a Time-of-Flight Analyzer |
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| Authors: | Daniel M Murphy |
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| Institution: | 1.Chemical Sciences Division, National Oceanic and Atmospheric Administration,Earth System Research Laboratory,Boulder,USA |
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| Abstract: | A new geometry for the flight region in a time-of-flight mass spectrometer is presented. It consists of two opposing electrostatic sectors of about 255° each and straight sections with a length appropriate to the turns. The resulting geometry folds into a compact space. The first-order aberrations for position, angle, and energy are all zero. The transverse focusing properties are also excellent. For an energetic, high-divergence ion source such as laser ablation, the sTOF has higher resolution and ion transmission than a reflectron of similar physical size. |
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