Scientific Analysis Instruments Limited

Mark Duncan Mills

Stephen Thompson

Victor Carl Parr

A mass spectrometer for analysis of a sampleA laseris provided to illuminate at least part of the surface of the sampleLaser light is conducted via an optical fiberand a zoom optical systemto the sample. A variable ion optical systemis provided to extract and focus ions released from the sampleonto a detectorThe optical and ion optical systems operate continuously and synchronously to vary the fields of laser illumination and view of the sample such that they are substantially confocal and equal in diameter on the surface of the sample. The sample may be a MALDI sample.

Mass spectrometer

A charged particle buncher with a series of spaced apart electrodesarranged to generate a shaped electric field, the series comprising a first electrode, a last electrodeand one or more intermediate electrodes, wherein the shaped electric field is generated substantially without free charges being transferred onto or away from the intermediate electrode or electrodes. The first and last electrodes may be connected to means for transferring charged on to or off the electrode. The first, intermediate and last electrodes may be connected in serried with capacitors.

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Manchester, United Kingdom

Mark Duncan Mills