Apparatus for investigating low energy ion-molecule reactors and its application to the reactive scattering of N⁺ by H₂

Thesis/Dissertation · Fri Nov 01 00:00:00 EST 1974

DOI:https://doi.org/10.2172/4237624· OSTI ID:4237624

Fair, James Alan ^[1]

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1. Univ. of California, Berkeley, CA (United States)

An apparatus was designed and constructed for measuring the scattering of ions from neutral molecules in a laboratory energy range of 6 to 50 eV. A beam of monoenergetic ions of a specified mass is generated by ionizing the parent neutral in an electron impact source and chen passing the resulting ions through a magnetic momentum analyzer and electrostatic focusing system. The ion beam then passes through a collision cell which contains the neutral target molecules. The scattering ions are detected by a detection system which consists of a crossed electric and magnetic field velocity filter, a quadrupole mass filter and a magnetic electron multiplier. The primary ion source and collision cell are mounted on a rotable cable in a large vacuum chamber and the detection system is mounted on the side of the vacuum chamber. This arrangement allows intensity distributions as a function of angle, mass and velocity to be determined.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-31-012487
• OSTI ID: 4237624
• Report Number(s): LBL-3178
• Resource Relation: Other Information: Thesis. Orig. Receipt Date: 30-JUN-75
• Country of Publication: United States
• Language: English

Related Subjects

N60400* -Physics (Atomic & Molecular)-Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
*HYDROGEN- ION-MOLECULE COLLISIONS
*NITROGEN IONS- ION-MOLECULE COLLISIONS
ANGULAR DISTRIBUTION
CATIONS
CORRELATIONS
DIAGRAMS
DISTRIBUTION
ENERGY DEPENDENCE
EV RANGE 01-10
EV RANGE 10-100
MASS SPECTRA
SCATTERING
STRIPPING
TARGETS
VELOCITY