STUDY OF PRIMARY COSMIC RAY ALPHA AND PROTON ENERGY SPECTRA, GEOMAGNETIC CUT-OFF ENERGIES AND TEMPORAL VARIATIONS

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B

DOI:https://doi.org/10.1007/BF02962562· OSTI ID:4257208

McDonald, F B

A new detector is described employing both a Cherenkov counter and a scintillation counter for measuring the cosmic-ray charge and energy spectrum. Alpha and proton energy spectra, alpha cut-off energies, and temporal variation obtained during a series ef Skyhook balloon flights are discussed. Five of the Skyhook flights reached an altitude greater than 114,000 feet. The alpha integral and differential energy spectrum data are tabulated and plotted. The alpha differential spectrum has a maximum in the vicinity of 325 Mev/nucleon and decreases at lower energies. The calculated cut-off energy for alpha particles at 55 deg was found to be 330 Mev/nucleon, in agreement with the data of Fowler et al. (A.C.)

• Research Organization: State Univ. of Iowa, Iowa City
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-008011
• OSTI ID: 4257208
• Journal Information: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 8, Suppl. No. 2; ISSN NUCIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
BALLOONS
CHERENKOV COUNTERS
COSMIC RADIATION
EARTH
ELECTRIC CHARGES
ENERGY
GEOMAGNETISM
GEOPHYSICS
LEVELS
MAGNETIC FIELDS
MEASURED VALUES
NUCLEONS
PHYSICS AND MATHEMATICS
PRODUCTION
PROTONS
RADIATION DETECTORS
SCINTILLATION COUNTERS
SPECTRA
VARIATIONS