Document Type
Conference Proceeding
Publication Date
10-23-2005
Publisher
American Institute of Physics
Volume
842
First page number:
1103
Last page number:
1105
Abstract
Sixty element 3He neutron multiplicity detector systems were designed, constructed and tested for use in cosmic ray experiments with a 30-cm cube lead target. A series of measurements were performed for the cosmic ray configuration at ground level (3 meters water equivalent, mwe), in the St. Petersburg metro tunnel (185 mwe), and in the Pyhäsalmi mine in Finland (583 and 1185 mwe). Anomalous coincidence events with charged cosmic ray particles at sea level produced events with 100-120 neutrons due possibly to the total disintegration of the Pb nucleus. These events were also detected at 185 mwe, but the particles causing such disintegration are currently unidentified. We present examples of preliminary data from the various measurements and discuss future plans for underground experiments including possible searches for Weakly Interacting Massive Particles (WIMP, dark matter).
Keywords
Cosmic rays; Dark matter (Astronomy); Lead; Neutrons – Multiplicity
Controlled Subject
Cosmic rays; Dark matter (Astronomy); Neutrons--Multiplicity
Disciplines
Cosmology, Relativity, and Gravity | Nuclear | Physics
File Format
File Size
186 KB
Language
English
Permissions
Copyright (2005) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Publisher Citation
Ward, Thomas E., Alexander A. Rimsky‐Korsakov, Nikolai A. Kudryashev, and Denis E. Beller. "Integral Neutron Multiplicity Measurements from Cosmic Ray Interactions in Lead." In AIP Conference Proceedings, vol. 842, p. 1103. 2006.
Repository Citation
Ward, T. E.,
Rimsky-Korsakov, A. A.,
Kudryashev, N. A.,
Beller, D. E.
(2005).
Integral Neutron Multiplicity Measurements from Cosmic Ray Interactions in Lead.
, 842
1103-1105.
Available at:
https://digitalscholarship.unlv.edu/hrc_trp_sciences_physics/40
Comments
The following article appeared in (Ward, Thomas E., Alexander A. Rimsky‐Korsakov, Nikolai A. Kudryashev, and Denis E. Beller. "Integral Neutron Multiplicity Measurements from Cosmic Ray Interactions in Lead." In AIP Conference Proceedings, vol. 842, p. 1103. 2006.) and may be found at (http://dx.doi.org/10.1063/1.2220467).