REEMISSION OF IONICALLY PUMPED HELIUM BY HELIUM ION BOMBARDMENT. Scientific paper 403FF530-P1

Technical Report · Wed Feb 01 04:00:00 EST 1961

OSTI ID:4064505

Carmichael, J H; Waters, P M

Measurements were made of the release of ionically pumped helium gas when the metal is bombarded with helium ions. The reemitted helium is distinguished from the bombarding helium by the use of a mass spectrometer and by using either He/sup 3/ as the bombarding atom snd He/sup 4/ as the trapped atom, or vise versa. The data are presented as a function of the amount of gas initially trapped, the number of bombarding ions, the initial kinetic energy of the trapped atoms, and the kinetic energy of the bombarding ions. Comparison of these data with those obtained using kyrpton as the bombarding ion indicates the different behavior in these cases. A replacement mechanism is more consistent with the data where helium is the bombarding ion. The corresponding data using krypton were satisfactorily explained by sputtering of the metal target. (auth)

• Research Organization: Westinghouse Electric Corp. Research Labs., Pittsburgh
• NSA Number: NSA-15-019981
• OSTI ID: 4064505
• Report Number(s): TID-12793
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ATOMS
EMISSION
ENERGY
GASES
HELIUM
HELIUM 3
HELIUM 4
ION BEAMS
IONS
KRYPTON
MASS SPECTROMETERS
MEASURED VALUES
METALS
PHYSICS
PUMPS
SPUTTERING
TARGETS
TRAPS