Item – Theses Canada

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OCLC number
72255620
Link(s) to full text
LAC copy
LAC copy
Author
Simard, Olivier,1979-
Title
An enhanced measurement of the angular response of photomultiplier tubes at the Sudbury Neutrino Observatory.
Degree
M. Sc. -- Carleton University, 2005
Publisher
Ottawa : Library and Archives Canada = Bibliothèque et Archives Canada, [2005]
Description
2 microfiches
Notes
Includes bibliographical references.
Abstract
The angular response of the photomultiplier tubes (PMTs) of the Sudbury Neutrino Observatory (SNO) is measured for an extended detector volume. Analytic and Monte Carlo studies of the reflections on the acrylic vessel made possible a full analysis of the optical data taken in a fiducial volume of 550 cm in radius, a 25% increase compared to previous analysis methods. The heavy and light water total extinctions found in that extended volume are consistent with previous measurements. The PMT angular response is also consistent, but extends in the range of incident angle [40°, 45°]. An approximation of the error due to this new optics on the energy scale uncertainty leads to a reduction of 1.25% on that uncertainty.
ISBN
0494007907
9780494007907