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ERIC Number: EJ1040107
Record Type: Journal
Publication Date: 2014-Sep
Pages: 3
Abstractor: As Provided
Reference Count: 10
ISSN: ISSN-0021-9584
Description of the Role of Shot Noise in Spectroscopic Absorption and Emission Measurements with Photodiode and Photomultiplier Tube Detectors: Information for an Instrumental Analysis Course
McClain, Robert L.; Wright, John C.
Journal of Chemical Education, v91 n9 p1455-1457 Sep 2014
A description of shot noise and the role it plays in absorption and emission measurements using photodiode and photomultiplier tube detection systems is presented. This description includes derivations of useful forms of the shot noise equation based on Poisson counting statistics. This approach can deepen student understanding of a fundamental principle that can ultimately limit the sensitivity of a spectroscopic measurement.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A