Experimental limits on deviations from Z/sup 2/ dependence of Cerenkov radiation by heavy ions
Journal Article
·
· Phys. Rev., A; (United States)
We have exposed a variety of Cerenkov radiators to relativistic Ne, Ar, and Fe ions at the Lawrence Berkeley Laboratory's Bevalac and have examined the charge dependence of the Cerenkov emission. Classically, and to first order in relativistic quantum theory, the dependence is Z/sup 2/, although certain higher-order corrections suggest a Z/sup 4/ dependence as well. Our experimental results are consistent with a pure Z/sup 2/ dependence and limits are placed on Z/sup 3/ and Z/sup 4/ higher-order contributions to Cerenkov emission, whose theoretical bases are briefly discussed. In addition to primary Cerenkov emission, we discuss light sources such as Cerenkov emission by secondary electrons, saturated radiator scintillation, and others which are confronted in most experimental configurations incorporating Cerenkov radiators.
- Research Organization:
- Department of Physics and Space Sciences Laboratory, University of California, Berkeley, California 94720
- OSTI ID:
- 5315502
- Journal Information:
- Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 21:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACRYLATES
ARGON IONS
ATOMIC IONS
ATOMIC NUMBER
BEAMS
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
CHERENKOV RADIATION
COLLISIONS
CORRECTIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ION BEAMS
ION COLLISIONS
IONS
IRON IONS
NEON IONS
RADIATION TRANSPORT
RADIATIONS
RELATIVISTIC RANGE
TRANSMISSION
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACRYLATES
ARGON IONS
ATOMIC IONS
ATOMIC NUMBER
BEAMS
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
CHERENKOV RADIATION
COLLISIONS
CORRECTIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ION BEAMS
ION COLLISIONS
IONS
IRON IONS
NEON IONS
RADIATION TRANSPORT
RADIATIONS
RELATIVISTIC RANGE
TRANSMISSION