A MEASUREMENT OF PROTON TOTAL REACTION CROSS SECTIONS AT 16.6 Mev
Thesis/Dissertation
·
OSTI ID:4165865
The technique of measurement of proton total reaction cross sections by a beam attenuation method has been adapted to the energy range of the Princeton FM Cyclotron. Foil targets of about 0.8-Mev thickness are placed in succession in a proton beam of 17 Mev, which has been cleaned of low energy protons by a magnetic spectrometer. A pair of thin plastic scintillation counters preceding the target act as a counter telescope. The beam stops in a slab of plastic scintillator subtending a large solid angle at the target. Short-recovery-time circuitry employing transistors and tunnel diodes allows average coincidence rates of 10/sup 4/ protons/sec. Previous experiments provided corrections for backward elastic and forward inelastic scattering. Optical model fits to elastic scattering angular distributions and to polarization data predict values for the total reaction cross section. Comparison of these predictions with the experimental results for C, Mg, Al, Ni, Cu, and Pb shows essential agreement. Factors affecting the ultimate accuracy of this experiment are considered in some detail. The facility for rapid data accumulation permitted many experimental tests for various systematic corrections. In the light of these considerations, the prospects for future investigations using this technique are discussed. (Dissertation Abstr.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-001086
- OSTI ID:
- 4165865
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS AT 152 AND 226 Mev
Measurements of pion-helium total cross sections at energies from 51 to 105 MeV
Total cross sections of nuclei for 280 Mev neutrons - I
Journal Article
·
Mon Dec 31 23:00:00 EST 1962
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4732648
Measurements of pion-helium total cross sections at energies from 51 to 105 MeV
Technical Report
·
Fri Oct 01 00:00:00 EDT 1976
·
OSTI ID:7329785
Total cross sections of nuclei for 280 Mev neutrons - I
Technical Report
·
Wed Jan 25 23:00:00 EST 1950
·
OSTI ID:402093
Related Subjects
ABSORPTION
ALUMINUM
ANGULAR DISTRIBUTION
CARBON
COINCIDENCE METHODS
COPPER
CROSS SECTIONS
CYCLOTRONS
EFFICIENCY
ELECTRON TUBES
ENERGY RANGE
FOILS
LEAD
MAGNESIUM
MAGNETIC FIELDS
MEASURED VALUES
MEV RANGE
NICKEL
NUCLEAR MODELS
NUCLEAR REACTIONS
OPTICAL MODEL
PENNSYLVANIA
PERFORMANCE
PHYSICS
POLARIZATION
PROTON BEAMS
SCATTERING
SCINTILLATION COUNTERS
SPECTROMETERS
TARGETS
THICKNESS
TRANSISTORS
ALUMINUM
ANGULAR DISTRIBUTION
CARBON
COINCIDENCE METHODS
COPPER
CROSS SECTIONS
CYCLOTRONS
EFFICIENCY
ELECTRON TUBES
ENERGY RANGE
FOILS
LEAD
MAGNESIUM
MAGNETIC FIELDS
MEASURED VALUES
MEV RANGE
NICKEL
NUCLEAR MODELS
NUCLEAR REACTIONS
OPTICAL MODEL
PENNSYLVANIA
PERFORMANCE
PHYSICS
POLARIZATION
PROTON BEAMS
SCATTERING
SCINTILLATION COUNTERS
SPECTROMETERS
TARGETS
THICKNESS
TRANSISTORS