Interactions of slow H, H 2, and H 3 with thin carbon foils

Abstract

Interaction processes resulting from the transit of incident 2–30 keV H +, H + 2 and H + 3 through 1.2 to 2.5 μg cm −2 carbon foils are investigated by examining the charge state and angular scatter distributions of atomic and molecular species that exit the foils. A comparison of the scatter distributions of exiting H + 2 and H 0 from incident H + 2 and H + 3 show that the atomic components of transmitted molecules scatter independently from foil atoms. For a given foil thickness, the measured fractions of H + 2 from incident H + 2 and H + 3 are inversely proportional to the square of the angular scatter half-width.