Which component in flow cytometry uses time-delay integration (TDI) technology?

The correct choice is the CCD camera, which utilizes time-delay integration (TDI) technology to enhance its performance in flow cytometry applications. TDI is a method used in imaging systems that allows for the continuous exposure of the CCD sensor to moving particles, effectively increasing the signal-to-noise ratio and improving the sensitivity and resolution of the captured images.

In flow cytometry, where cells or particles are flowing in a stream and are illuminated, the TDI technology captures the movement of these particles as they pass through the laser beam. The integration of the signal occurs across multiple frames, enabling the system to gather more light and detail from each particle, leading to superior data quality, particularly useful in applications requiring high sensitivity and precision.

Other components mentioned, such as the ADC converter, voltage amplifier, and digital signal processor, do play important roles in the flow cytometry system but do not specifically employ TDI technology. The ADC converter translates analog signals into digital data but does not enhance signal capture in the way that TDI does. Voltage amplifiers boost signal strength, while digital signal processors perform data calculations and analysis but are not the components that utilize TDI for image acquisition. Thus, the CCD camera stands out as the component integrating TDI technology for improved