Note: An improved 3D imaging system for electron-electron coincidence measurements

作者：Lin Yun Fei; Lee Suk Kyoung; Adhikari Pradip; Herath Thushani; Lingenfelter Steven; Winney Alexander H; Li Wen^*

来源：Review of Scientific Instruments, 2015, 86(9): 096110.

DOI：10.1063/1.4931684

We demonstrate an improved imaging system that can achieve highly efficient 3D detection of two electrons in coincidence. The imaging system is based on a fast frame complementary metal-oxide semiconductor camera and a high-speed waveform digitizer. We have shown previously that this detection system is capable of 3D detection of ions and electrons with good temporal and spatial resolution. Here, we show that with a new timing analysis algorithm, this system can achieve an unprecedented dead-time (<0.7 ns) and dead-space (<1 mm) when detecting two electrons. A true zero dead-time detection is also demonstrated.

• 出版日期2015-9