2026-09-18T20:48:07Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/993142026-06-16T18:54:05Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Peter Fisher.
Deaconu, Cosmin Ştefan
Massachusetts Institute of Technology. Department of Physics.
Massachusetts Institute of Technology. Department of Physics
2015-10-14T15:05:09Z
2015-10-14T15:05:09Z
2015
2015
http://hdl.handle.net/1721.1/99314
923021117
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 169-175).
Identification of the composition of dark matter is one of the major unsolved puzzles in modern physics. Detectors with sensitivity to the direction of certain classes of dark matter particles have potentially very powerful discrimination ability against more mundane backgrounds. The Dark Matter Time Projection Chamber (DMTPC) collaboration is actively working on a directional detection method using low-pressure CF₄ gas detectors with optical readout. This work constructs a model for the directional reconstruction ability of DMTPC detectors, evaluates the model against calibration data, and finally uses the model to project the directional sensitivity of the under-construction next generation DMTPC detector. This detector is expected to have a cubic meter of fiducial volume which, at 30 Torr, corresponds to a fluorine target mass of 120 g.
by Cosmin Ştefan Deaconu
Ph.D.
175 pages
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Physics.
A model of the directional sensitivity of low-pressure CF₄ dark matter detectors
Thesis
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<Abstract>Identification of the composition of dark matter is one of the major unsolved puzzles in modern physics. Detectors with sensitivity to the direction of certain classes of dark matter particles have potentially very powerful discrimination ability against more mundane backgrounds. The Dark Matter Time Projection Chamber (DMTPC) collaboration is actively working on a directional detection method using low-pressure CF₄ gas detectors with optical readout. This work constructs a model for the directional reconstruction ability of DMTPC detectors, evaluates the model against calibration data, and finally uses the model to project the directional sensitivity of the under-construction next generation DMTPC detector. This detector is expected to have a cubic meter of fiducial volume which, at 30 Torr, corresponds to a fluorine target mass of 120 g.</Abstract>
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