8 papers · 1 filter
Status of Project GRAND's Proportional Wire Chamber Array
J. Poirier, D. Baker, J. Barchie +9
Project GRAND is an extensive air shower array of proportional wire chambers. It has 64 stations in a 100m x 100m area; each station has eight planes of proportional wire chambers…
A Search for Point Sources of Cosmic Primary Rays Which Produce Single Muon Tracks at Ground Level
A. Roesch, J. Carpenter, S. Desch +3
An increased data sample of identified secondary muons is collected at detection level. Project GRAND identifies secondary cosmic ray muons from electrons utilizing a thin steel ab…
Can EGRET's Gamma Ray Sources > 100 MeV Be Seen with Single Secondary Cosmic Muons from Gammas > 30 GeV?
J. Carpenter, S. Desch, T. F. Lin +2
The high energy gamma ray sources provided by experiment EGRET on the Compton Gamma Ray Observatory are examined, testing Project GRAND's ability to detect primary gamma rays by me…
Possible Detection of Gamma Ray Air Showers in Coincidence with BATSE Gamma Ray Bursts
T. F. Lin, J. Carpenter, S. Desch +3
Project GRAND presents the results of a search for coincident high-energy gamma ray events in the direction and at the time of nine Gamma Ray Bursts (GRBs) detected by BATSE. A gam…
Composition of UHE Cosmic Ray Primaries
J. Poirier, J. Carpenter, J. Gress +2
Project GRAND presents results on the atomic composition of primary cosmic rays. This is accomplished by determining the average height of primary particles that cause extensive ai…
Secondary Cosmic Muon Angular Distributions with High Statistics
J. Poirier, J. Gress, T. F. Lin
Project GRAND preents a map in right ascension and declination for single cosmic secondary tracks which have been identified as muons. These muons are measured in stations of propo…