NTRS - NASA Technical Reports Server

Back to Results
A balloon-borne ionization spectrometer with very large aperture for the detection of high energy cosmic raysA balloon experiment which was used to determine the chemical composition of very high-energy cosmic rays up to and beyond 100 GeV/nucleon is described. The detector had a geometric factor of 1 sq m sr and a total weight on the balloon of 2100 kg. The apparatus consisted of an ionization spectrometer, spark chambers, and plastic scintillation and Cherenkov counters. It was calibrated at CERN up to 24 GeV/c protons and at DESY up to 7 GeV/c electrons. In October 1972 it was flown successfully on a stratospheric balloon.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Atallah, K.
Modlinger, A.
Schmidt, W. K. H.
(Max-Planck-Institut fuer Physik und Astrophysik Garching, Germany)
Cleghorn, T. F.
(Max-Planck-Institut fuer Physik und Astrophysik, Garching, West Germany; NASA, Johnson Space Center Houston, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Publication Information
Publication: Nuclear Instruments and Methods
Volume: 124
Subject Category
Instrumentation And Photography
Accession Number
Distribution Limits

Available Downloads

There are no available downloads for this record.
No Preview Available