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MALS Detector Achieves Dynamic Range of 126 dB

The DAWN HELEOS multi-angle light scattering (MALS) detector incorporates both MALS and Quasi-Elastic Light Scattering (QELS) into a single unit. The device achieves a dynamic range of 126 dB, enabling it to virtually never go off scale and resulting in faster sample runs. A 24 bit A/D measurement system is utilized with separate A/Ds for each detector channel, providing the same high sensitivity over the entire range of scattering intensities, which renders post-detector amplifiers unnecessary. Using the device simplifies the light scattering process, allowing the regulation of measurements to be completely automated. By incorporating an air cooled Peltier to temperature-regulate the sample, the process can operate at temperatures between 0 C and 150 C, thus achieving a stability >0.01 C. Furthermore, the device can operate on a corporate network due to its Ethernet interface, allowing the user to control or view the status of the device from multiple locations.
Wyatt Technology
6300 Hollister Ave.
Santa Barbara, CA, 93117