Circular dichroism detection system
AssigneeThe Science and Technology Facilities Council
InventorsSpyros Manolopoulos, David Thomas Clarke, Peter David Read, Gareth Royston Jones, Gareth Ernest Derbyshire
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Abstract
A detection system includes a modulator to apply a circular polarization modulation to an incident beam of radiation, a sample holder through which the modulated beam is pass, a grating to diffract the beam of radiation, an array of solid state detectors arranged to receive different wavelengths of the beam, and a process arranged to synchronise detected signals with the modulation applied by the modulator, in order to measure the spectral circular dichroism of the sample.
Claims51
A circular dichroism detection system comprising a modulator to apply a modulation to an incident beam of radiation, a sample cell through which the modulated beam of radiation is passed, a beam expander to expand the beam of radiation, an array of detectors arranged to receive different parts of the expanded beam of radiation, and a processor arranged to synchronise detected signals with the modulation applied by the modulator, wherein the modulator is configured to apply a modulated circular polarisation to the beam and is configured to apply a modulation at a frequency greater than 1 kHz, the processor further comprising a digitiser arranged to digitise detected signals before they are synchronised with the modulation applied by the modulator.
A circular dichroism detection system comprising a modulator to apply a modulation to an incident beam of radiation, a sample cell through which the modulated beam is passed, at least one solid state detector, and processor arranged to amplify and digitise signals detected by the at least one detector, and then to subsequently synchronise the amplified and digitised signal with the modulation applied by the modulator, wherein the modulator is configured to apply a modulated circular polarisation to the beam and is configured to apply a modulation at a frequency greater than 1 kHz, the processor further comprising a digitiser arranged to digitise detected signals before they are synchronized with the modulation applied by the modulator.
A circular dichroism detection method comprising applying a modulation to an incident beam of radiation, passing the modulated beam of radiation through a sample held in a sample cell, expanding the beam of radiation, detecting different part of the expanded beam of radiation using an array of solid state detectors, synchronising detected signals with the applied modulation, wherein applying the modulation includes applying a modulated circular polarization to the beam and applying the modulation at a frequency of greater than 1 kHz and digitising the detected signals before they are synchronized with the applied modulation.
A circular dichroism detection method comprising applying a modulation to an incident beam of radiation, passing the modulated beam of radiation through a sample, detecting the beam of radiation using at least one solid state detector, amplifying and digitising the signals detected by the at least one detector, and then subsequently synchronising the amplified and digitised signals with the applied modulation, wherein applying the modulation includes applying a modulated circular polarization to the beam and applying the modulation at a frequency of greater than 1 kHz and digitising the detected signals before they are synchronized with the applied modulation.
Dependencies are inferred from the claim text.