Complete and incomplete momentum-transfer processes in the reaction sup 16 O + @Si

Miscellaneous · Mon Jan 01 00:00:00 EST 1990

OSTI ID:5190393

Zingarelli, R A

Complete and incomplete fusion components from the nuclear reaction {sup 16}O + {sup nat}Si were studied at 39.2, 59.0. 80.6, 96.4, 112.4, and 127.8 MeV bombarding energy. Inclusive measurements of evaporation residues (ERs) were made at all energies; ER/{alpha}-particle coincidence measurements were made at 127.8 MeV. Theoretical predictions of observable features of fusion and incomplete fusion are discussed, for inclusive and coincidence measurements. The design, construction, and calibration of a new time of flight (TOF) heavy ion spectrometer for the detection of ERs from this reaction is discussed. A model-independent method for extracting complete and incomplete momentum transfer components (CMT and ICMT) of the inclusive data, which are expected to correspond to complete and incomplete fusion (CF and ICF), is presented. Results of the collection and analysis of both the inclusive and coincidence data are presented. From the inclusive data, the mass, velocity, and angular distributions of the ERs resulting from CMT processes were found in agreement with predictions for CF reactions. From the ERs resulting from ICMT processes, the velocity distributions were found to agree with a two-body projectile fragmentation model; net absorption of clusters of one, two, or three {alpha}-particles seems to be the predominant process.

• Research Organization: Florida State Univ., Tallahassee, FL (United States)
• OSTI ID: 5190393
• Resource Relation: Other Information: Thesis (Ph.D.)
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OXYGEN 16 REACTIONS
HEAVY ION FUSION REACTIONS
INCOMPLETE FUSION REACTIONS
SILICON
CALIBRATION
DATA ANALYSIS
DESIGN
DISTRIBUTION
ENERGY SPECTRA
EVAPORATION MODEL
INCLUSIVE INTERACTIONS
MEV RANGE 10-100
MEV RANGE 100-1000
MOMENTUM TRANSFER
SURFACE BARRIER DETECTORS
TIME-OF-FLIGHT SPECTROMETERS
CHARGED-PARTICLE REACTIONS
ELEMENTS
ENERGY RANGE
HEAVY ION REACTIONS
INTERACTIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEV RANGE
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SEMIMETALS
SPECTRA
SPECTROMETERS
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663530 - Nuclear Mass Ranges- A=20-38- (1992-)