Secondary Cosmic-Ray Photons below Cascade Energy
- 15 August 1961
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 123 (4), 1435-1439
- https://doi.org/10.1103/physrev.123.1435
Abstract
Investigations with small unshielded scintillation crystals carried through the atmosphere by balloons, show large fluxes of photons in the energy region 30 to 300 kev in equilibrium with the primary cosmic ray beam. At 90 g depth the flux is about 22 photons compared with a charged particle flux determined from a Geiger tube of 1.9 at this same depth. The photon flux at zero depth, taken to be the albedo of this secondary cosmic-ray component, has been estimated by extrapolation to be 8 photons greater than 30 kev.
Keywords
This publication has 2 references indexed in Scilit:
- Balloon observations of X rays in the auroral zone IIJournal of Geophysical Research, 1960
- Balloon observations of X-rays in the auroral zone IJournal of Geophysical Research, 1960