Low-cost open-source high-frequency portable pulse counter for Raspberry Pi and its application to Xray transmission rate measurement

Abstract

Affordable electronics for instrumentation play a vital role in academia since research budgets are tight nowadays. In this paper a low-cost open-source high-frequency portable Raspberry Pi-based pulse counter is presented. Although it is designed as a $ 2 $ channel counter, it can be easily modified to a $ 4 $ channel counter. It provides a relay control interface for experimental-setup integration and counts pulses up to $ 10 $ MHz frequency. Presented system is proved to be accurate by an Xray transmission rate measurement experiment.