Liquid Argon scintillation light quenching due to Nitrogen impurities : measurements performed for the MicroBooNE vertical slice test

The neutrino experiment MicroBooNE is currently under construction. To expedite the physics output of MicroBooNE, a smaller version of its optical detection system has been implemented. To demonstrate full operability of this prototype, two physics measurements were performed. The first examines the number of scintillation light components, for although theory explains two components, other groups have seen evidence for a third. The second measures late light quenching as a function of nitrogen gas impurity concentration in the liquid argon. We nd marginal evidence for a third component and further steps are identified to improve upon this study. Our late light quenching measurement also agrees with previously published results in the literature. These two measurements are useful not only from a detector development standpoint, but also for detector simulations.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Physics.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2013

Author dc:creator

• Chiu, Christie Shinglei

Advisor dc:contributor.advisor

• Janet M. Conrad.

• Physics.

Statement dc:rights

• 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.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/83641

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/83641