Practical Electron Microscopy and Database

An Online Book, Second Edition by Dr. Yougui Liao (2006)

Practical Electron Microscopy and Database - An Online Book

Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix

Hybrid Pixel Array Detector (PAD): A Direct Electron Detector

Hybrid pixel array detector (PAD) consists of an array of photodiodes, which are bump-bonded to an application-specific integrated circuit. PADs have been optimized for 4D-STEM through the integration of high-gain and counting circuitry within each pixel, allowing for single-electron sensitivity, high dynamic range, and rapid readout speeds. This detector has also been commercialized and widely used in various 4D-STEM experiments.