Diffuse Cosmic X-Ray Background Between 4 and 40 KEV

Abstract

Diffuse X-ray background fluxes have been observed in many of the rocket flights made to study discrete X-ray sources. The X-ray background spectrum observed in two recent (September 20 and September 22, 1966) flights from Johnston Island is presented. Observations were made of backgrounds perpendicular to and in the galactic plane. The X-ray flux was found to be roughly isotropic. It follows a power law spectrum having N(E) 1 6 The total radiated energy observed between 4 and 40 keV is 9 X 10-8 ergs sterad-1.