Coincidences between extensive air showers and the Soudan 1 underground muon detector

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.1459· OSTI ID:7206049

Das Gupta, U; Border, P; Johns, K; Longley, N; Marshak, M; Peterson, E; Ruddick, K; Shupe, M ^[1]; Ayres, D; Dawson, J; Fields, T; Goodman, M; May, E ^[2]

---

1. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

We have operated the Soudan 1 underground muon detector in coincidence with a 36-m{sup 2} detector situated at the Earth's surface. Such a combination of detectors can yield information on the composition of the primary cosmic rays at energies above {similar to}3{times}10{sup 15} eV, where there is an abrupt change in the slope of the energy spectrum. The present experiment was meant to test the feasibility of operating such a system, and to obtain a first sample of data before the complete installation of the much larger Soudan 2 detector. These initial data seem to favor a light composition in the energy range 10{sup 15}--10{sup 16} eV, but there are significant systematic uncertainties.

• OSTI ID: 7206049
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662330* -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGED PARTICLE DETECTION
COINCIDENCE METHODS
COINCIDENCE SPECTROMETRY
COSMIC ELECTRONS
COSMIC RADIATION
COSMIC SHOWERS
COUNTING TECHNIQUES
DETECTION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY SPECTRA
EXTENSIVE AIR SHOWERS
FERMIONS
IONIZING RADIATIONS
LEPTONS
MUON DETECTION
NUCLEAR CASCADES
RADIATION DETECTION
RADIATIONS
SECONDARY COSMIC RADIATION
SHOWERS
SPECTRA
UNDERGROUND FACILITIES