Determination of the total reaction cross section for heavy ions at 15 MeV/AMU, 25 MeV/AMU, and 35 MeV/ANU
The differential elastic cross sections for /sup 12/C + /sup 12/C and /sup 12/C + /sup 90/Zr were measured at 15 MeV/AMU, 25 MeV/AMU, and 35 MeV/AMU. The differential cross sections were then fit with standard models to determine the total reaction cross sections at these energies. At energies below 15 MeV/AMU the total reaction cross section is geometric. We found neither system could be described by a simple geometric model for these three energies. The total reaction cross sections were compared with calculations made using the optical limit of Glauber theory. These calculations predicted that the total reaction cross section should decrease with increasing energy for the carbon carbon system and should remain constant for the carbon zirconium system. This corresponds to an increase in transparency of about twelve percent over this energy range for both systems. The Glauber model predictions were found to be quite accurate for the carbon carbon system but were completely inconsistent with data for the carbon zirconium system. The predicted values for the total reaction cross section were found to be too small at the low energy and too large at the high energy. The increase in transparency in the carbon zirconium system was twice that of the carbon carbon system.
- Research Organization:
- Washington Univ., Seattle (USA)
- OSTI ID:
- 5212888
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON 12 REACTIONS
ELASTIC SCATTERING
CARBON 12 TARGET
ZIRCONIUM 90 TARGET
CARBON 12
DIFFERENTIAL CROSS SECTIONS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
GLAUBER THEORY
MEV RANGE 100-1000
TOTAL CROSS SECTIONS
ZIRCONIUM 90
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
ENERGY RANGE
EVEN-EVEN NUCLEI
HEAVY ION REACTIONS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
SCATTERING
STABLE ISOTOPES
TARGETS
ZIRCONIUM ISOTOPES
651325* - Nuclear Properties & Reactions
A=6-19
Experimental- Nuclear Reactions & Scattering- (-1987)
651725 - Nuclear Properties & Reactions
A=90-149
Experimental- Nuclear Reactions & Scattering- (-1987)