Crossed-molecular-beams investigation of the excitation of ground-state neon atoms by 4.6-eV helium metastables

Journal Article · Mon Mar 01 04:00:00 EST 1976 · J. Appl. Phys., v. 47, no. 3, pp. 1062-1064

DOI:https://doi.org/10.1063/1.322724· OSTI ID:4003631

Leasure, E L; Mueller, C R

A molecular beam source has been developed which produces fast metastable helium atoms and was used in a crossed-molecular-beams experiment to measure the absolute differential elastic-collision cross section of these atoms with a velocity-selected beam of ground-state neon atoms. The results at 4.6 eV c.m. show strong evidence of excitations around 5degree and 8degree c.m. The total excitation cross section was estimated at 1.45 A$sup 2$ and probably originates from potential-energy curve crossings at 0.15 and 0.3 eV. (AIP)

• Research Organization: Chemistry Department, Purdue University, Lafayette, Indiana 47907
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-027267
• OSTI ID: 4003631
• Journal Information: J. Appl. Phys., v. 47, no. 3, pp. 1062-1064, Journal Name: J. Appl. Phys., v. 47, no. 3, pp. 1062-1064; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

*HELIUM-- ATOM-ATOM COLLISIONS
*NEON-- ATOM-ATOM COLLISIONS
640304* --Physics Research--Atomic
Molecular & Chemical Physics--Collision Phenomena
ATOMIC BEAMS
COLLIDING BEAMS
CROSS SECTIONS
ENERGY TRANSFER
EXCITATION
GAS LASERS
GROUND STATES
METASTABLE STATES
MOLECULAR BEAMS
N60400* --Physics (Atomic & Molecular)--Collision Phenomena