ERIC Number: EJ1361831
Record Type: Journal
Publication Date: 2022-Sep
Pages: 3
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0031-921X
EISSN: EISSN-1943-4928
Measuring Atmospheric Radon Levels Using a Cloud Chamber
Geske, Matthew; Murray-Weston, Crystal; Lelack, Graham
Physics Teacher, v60 n6 p498-500 Sep 2022
The Wilson cloud chamber, invented in 1911 by Scottish physicist Charles Wilson, is a remarkably simple and effective charged particle detector. Cloud chambers were used regularly in particle physics experiments for decades, until being supplanted by bubble chambers. In this article, we describe a lab activity that is suitable for introductory-level physics students using a cloud chamber to measure the rate of alpha decay in the atmosphere. In performing this experiment, the students deepen their understanding of alpha decay, including the random nature of the process. They also become acquainted with statistical uncertainties from measuring a random process.
Descriptors: Science Instruction, Physics, Science Experiments, Science Laboratories, Laboratory Experiments, Laboratory Equipment, Scientific Concepts, Concept Formation
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://aapt.scitation.org/journal/pte
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A