University of Illinois Urbana-Champaign

Search for fractionally charged particles in terrestrial samples

Cook, Dwight Dexter

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1969_cook.pdf

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https://hdl.handle.net/2142/25758

Description

Title
Search for fractionally charged particles in terrestrial samples
Author(s)
Cook, Dwight Dexter
Issue Date
1969
Doctoral Committee Chair(s)
Frauenfelder, Hans
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Date of Ingest
2011-07-11T17:00:40Z
Keyword(s)
  • fractionally charged particles
  • terrestrial samples
  • sea water
  • rock
  • quarks
Language
en
Abstract
We have performed a geophysical search for fractionally charged particles (mainly ql quarks) in sea water and rock sample's. The samples,chosen were ten rock samples, which are believed to have been at the earth's surface for a long time, and two three-liter sea water samples. The samples were run through cation exchange columns to separate most of the material from particles of charge ±.2/3 and ± 1/3. The purified samples were then evaporated in an electron gun, which accelerated the negatively charged particles to a solid state detector. The pulse height spectra from the detector were scanned for peaks corresponding to particles of a charge between minus one and zero. No such particles were found. The concentration of ql quarks in the rock samples was < 10^-23 quarks/nucleon and in the sea water samples was ~< 10^-24 quarks / nucleon.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/25758
Copyright and License Information
1969 Dwight Dexter Cook

Owning Collections

Dissertations and Theses - Physics
Dissertations in Physics
Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois