Accession Number:

AD0843332

Title:

Experimental Research on Collisions of Heavy Particles at Energies up to 2 MEV

Descriptive Note:

Rept. for 30 Jun 1967-30 Jun 1968

Corporate Author:

PITTSBURGH UNIV PA DEPT OF PHYSICS

Personal Author(s):

• Brackman, R. T.
• Fite, W. L.

Report Date:

1968-10-01

Pagination or Media Count:

80.0

Abstract:

Three types of experiments were performed to study collision properties of ions in the energy range from approximately 50 keV to 2 MeV. The first study made measurements of the electron capture and loss cross sections of N, O, Xe, and U in collision with N2, O2, Ar, and Ne. Results for stripping of electrons from the neutral atoms of the above ions were deduced from the data as well. The second study measured the cross sections for exciting the O, O transition of the first negative bands of N2 at 3914A on impact of Ba, Ba, Xe, O, N, and N2 on N2. In the third study an initial attempt was made to measure the cross section of electron-impact excitation of He to the n 2 state, wherein a fast beam of He was passed through a space charge limited electron cloud and the 304A photons were to be measured. While this novel approach has not yielded the desired cross section, the general approach of placing relative energy in the ion instead of in the electron when studying the interactions between ions and electrons appears to have considerable promise.

Descriptors:

• *ION BOMBARDMENT
• *MOLECULAR ORBITALS
• ARGON
• ELECTRON CAPTURE
• ELECTRONS
• FILMS
• ION BEAMS
• IONS
• MOLECULAR ENERGY LEVELS
• NEON
• NITROGEN
• NUCLEAR CROSS SECTIONS
• OXYGEN
• URANIUM
• VAN DE GRAAFF GENERATORS
• XENON

Subject Categories:

• Particle Accelerators
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE