Computer Science
Scientific paper
May 1969
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969natur.222..650s&link_type=abstract
Nature, Volume 222, Issue 5194, pp. 650-652 (1969).
Computer Science
9
Scientific paper
IN recent years there have been many attempts to detect extraterrestrial gamma radiation of energy greater than 50 MeV (refs. 1-14), but the only positive evidence of the presence of this radiation was obtained recently by the OSO III satellite experiment of Clark et al.15. Their measurements reveal a significant flux of gamma-rays, associated with the galactic plane and an enhancement in the direction of the galactic centre. At present it is not-known whether this flux comes from a number of unresolved point sources, collisions between cosmic-ray protons and interstellar hydrogen, or Compton collisions between cosmic-ray electrons and the high intensity infrared radiation background16,17. Attempts to detect the radiation by balloon experiments have suffered from a high level of locally generated background, which made the identification of the weak galactic source of gamma-rays a difficult task. So far all balloon experiments have had an extrapolated primary flux at the top of the atmosphere greater than 1 × 10-3 photons cm-2 s-1 sr-1, irrespective of the type of detectors used (usually nuclear emulsions, scintillation Cerenkov detectors and spark chambers). This flux is an order of magnitude higher than the value of the isotropic primary flux of (1.2 +/- 0.2) × 10-4 photons cm-2 s-1 sr-1 reported by the OSO III experiment.
No associations
LandOfFree
Detection of High Energy Gamma-rays from the Galactic Disk at Balloon Altitudes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Detection of High Energy Gamma-rays from the Galactic Disk at Balloon Altitudes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of High Energy Gamma-rays from the Galactic Disk at Balloon Altitudes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1390279