2026-09-18T23:58:28Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/612682022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Denis Dujmic and Peter Fisher.
Wolfe, Ian C
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2011-02-23T14:39:09Z
2011-02-23T14:39:09Z
2010
2010
http://hdl.handle.net/1721.1/61268
701926075
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 71).
CF4 gas is useful in many applications, especially as a drift gas in particle detection chambers. In order to make accurate measurements of incident particles the properties of the drift gas must be well understood. An important property of CF4 which is important for determining particle energy in detectors, the work function, is disputed and not well known. This thesis measures the work function of CF4 gas for use in the Dark Matter Time Projection Chamber as well as all experiments that use CF4 as a drift gas. This was accomplished by bombarding CF4 in a drift chamber and ionizing it, then collecting the ionized electrons on an anode. The work function was found to be 33.8 ± 0.4 eV. This value was then crosschecked against P10, which is well understood.
by Ian C.Wolfe.
S.B.
71 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Measurement of work function in CF₄ gas
Thesis
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Publication
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<Abstract>CF4 gas is useful in many applications, especially as a drift gas in particle detection chambers. In order to make accurate measurements of incident particles the properties of the drift gas must be well understood. An important property of CF4 which is important for determining particle energy in detectors, the work function, is disputed and not well known. This thesis measures the work function of CF4 gas for use in the Dark Matter Time Projection Chamber as well as all experiments that use CF4 as a drift gas. This was accomplished by bombarding CF4 in a drift chamber and ionizing it, then collecting the ionized electrons on an anode. The work function was found to be 33.8 ± 0.4 eV. This value was then crosschecked against P10, which is well understood.</Abstract>
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