摘要:
An apparatus for inspecting a sample includes a sample holder for holding the sample; a multi beam charged particle generator for generating an array of primary charged particle beams; an electro-magnetic lens system for directing the array of primary charged particle beams into an array of separate focused primary charged particle beams on the sample; a multi-pixel photon detector arranged for detecting photons created by the focused primary charged particle beams when the primary charged particle beams impinge on the sample or after transmission of said primary charged particle beams through the sample; and an optical assembly for conveying photons created by at least two adjacent focused primary charged particle beams of the array of separate focused primary charged particle beams to distinct and/or separate pixels or to distinct and/or separate groups of pixels of the multi-pixel photon detector.
摘要:
The invention is directed to a process for the preparation of 2,5-furandicarboxylic acid (FDCA) by fermentation comprising fermenting a suitable starting compound to produce an aqueous solution of a salt of FDCA having a pH of at least 7, optionally removing solids from said solution, e.g. by filtration, subsequently freeze crystallizing the said salt of FDCA from said solution at said pH, isolating the said FDCA salt in the form of solid crystals, preparing an aqueous solution of said salt and crystallizing FDCA as the free acid from said solution at an acidic pH.
摘要:
The present invention relates to a device, comprising: a main body, an arm assembly comprising: a first arm member, a first joint, a second arm member, a second joint, orientation control means for adjusting the orientation of the arm members and/or joints of the arm assembly relative to the main body, one or more passive actuating means for counterbalancing at least a part of the weight of the arm assembly, wherein an adjustable lever mechanism is arranged between the main body and the arm assembly, drive means configured for adjusting the lever arm, one or more orientation sensors for determining the orientation of the arm members and/or joints of the arm assembly relative to the main body, and lever arm control means for adjusting the lever arm of the adjustable lever mechanism with the drive means. The invention further relates to a method of adjusting a lever arm of such a device.
摘要:
The invention relates to an apparatus for inspecting a surface of a sample, wherein the apparatus comprises : at least one charged particle source for generating an array of primary charged particle beams, a condenser lens for directing all charged particle beams to a common cross-over, a lens system for directing the primary charged particle beams from the common cross-over towards the sample surface and for focusing all primary charged particle beams into an array of individual spots on the sample surface, and a position sensitive secondary electron detector positioned at least substantially in or near a plane comprising said common cross-over.
摘要:
The present invention is in the field of a method for removing a high definition nanostructure in a partly free-standing layer, the layer, a sensor comprising said layer, a use of said sensor, and a method of detecting a species, and optional further characteristics thereof, using said sensor. The sensor and method are suited for detecting single ions, molecules, low concentrations thereof, and identifying sequences of base pairs, e.g. in a DNA-strand.