Geiger Counter: the Classic Radiation Detector

Video Description

At long last, I cover the most well-known radiation detector of all: the iconic Geiger Counter. Though originally conceived in 1908 by German physicist Hans Geiger as part of experiments that led to the discovery of the atomic nucleus, the detector was not perfected until 1928. The Geiger counter is based around the Geiger-Müller tube, which detects radiation by using a powerful electric field to accelerate and multiply electrons produced by ionization, producing electric pulses strong enough to be easily detected and processed by simple electronics. 0:00 Introduction 1:29 Geiger, Rutherford, and Alpha Particles 3:10 Townsend Avalanches 3:44 Geiger's 1908 Detector 4:40 Discovery of the Atomic Nucleus 6:16 Geiger-Müller Tubes: Design Overview 8:10 Windowless GM Tubes 9:01 Neutron Detection 9:47 GM Tubes: Basic Function 11:07 Geiger Counter: Exterior Features 11:48 Geiger Counter: Battery System 12:50 Geiger Counter: Detection Circuit 14:35 Pulse Length Limitation 16:07 Spurious Discharges 16:31 Gas Quenching 17:55 External Quenching 18:17 Detection Limits 18:51 Proportional Counters 20:37 Outro Canadian Army Radiation Instruments video: https://youtu.be/XZX_T4QVUrE Cold War Civil Defence Radiation Instruments video: https://youtu.be/faJLf_k9UrI CD 717 Gamma Survey Meter video: https://youtu.be/maWRvegUzqk Spinthariscope video: https://youtu.be/Hyr9-uVxQKc Scintillation Counter video: https://youtu.be/nNGSm3jieIM Cloud Chamber video: https://youtu.be/OtcdY0oEkOQ SOURCES https://pmc.ncbi.nlm.nih.gov/articles/PMC3228631 https://nationalmaglab.org/magnet-academy/history-of-electricity-magnetism/museum/geiger-counter-1908/ https://www.aps.org/archives/publications/apsnews/201206/physicshistory.cfm http://www.national-radiation-instrument-catalog.com/new_page_144.htm https://steemit.com/gadgets/@proteus-h/what-s-inside-a-1960s-american-civil-defense-geiger-counter https://archive.org/details/Pop195710/Popular Electronics/Pop-1955-07/page/n27/mode/2up https://www.electronics-tutorials.ws/waveforms/monostable.html