Three-dimensional development of cascade showersinduced by 50-, 100-, and 300-GeV electrons
Five emulsion chambers were analyzed with two different dilution factors exposed to the 50-, 100-, and 300-GeV electron beams at Fermi National Accelerator Laboratory. The longitudinal development and lateral distribution of the number of shower tracks within a certain radius ( < or = 100 ..mu..m) both roughly agree with the theoretical transition and lateral curves by Nishimura and Kidd connected by a spacing factor equal to the dilution factor. The error of the cascade energy measurement by the conventional way, using the transition curves within a radius 50 ..mu..m, is 18--28 % for 50 --100 GeV and 13--14 % for 300 GeV. Track length within a cylinder of the same radius gives less ambiguity than the above method, when the track length is summed up till the depth is greater than 1.4 times the depth of the maximum number of shower tracks within a radius 50 ..mu..m. Other results with details are also described.
- Research Organization:
- Department of Physics, Konan University, Kobe, Japan
- OSTI ID:
- 5234556
- Journal Information:
- Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 22:1; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BREMSSTRAHLUNG
BUBBLE CHAMBERS
CASCADE SHOWERS
ELECTROMAGNETIC RADIATION
ELECTRON-NUCLEON INTERACTIONS
ENERGY RANGE
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
GEV RANGE 100-1000
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MEASURING INSTRUMENTS
NUCLEAR EMULSIONS
PARTICLE INTERACTIONS
RADIATION DETECTORS
RADIATIONS
SHOWERS