Photoprotons from lead 208 and tantalum

Technical Report · Wed Sep 01 00:00:00 EDT 1954

OSTI ID:6432423

Toms, M E; Stephens, W E

The photoprotons ejected from thin foils of tantalum and enriched lead 208 by the 23 MeV bremsstrahlung X rays from the University of Pennsylvania betatron have been observed in nuclear emulsions. Yields measured in units of 10/sup 4/ protons per mole per roentgen unit, are: tantalum, 5.6 +- 0.5; lead 208, 2.6 +- 0.3. The angular distribution of the lead 208 protons shows a strong forward asymmetry while the tantalum protons are more isotropic. Both proton energy distributions are in good agreement with the predictions of the direct process.

• Research Organization: Pennsylvania Univ., Philadelphia (USA). Dept. of Physics
• OSTI ID: 6432423
• Report Number(s): DOE/NBM-5002318; ON: TI85002318
• Country of Publication: United States
• Language: English

Related Subjects

651825* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYONS
BASIC INTERACTIONS
DATA
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
FERMIONS
FOILS
HADRONS
INFORMATION
INTERACTIONS
LEAD 208 TARGET
MEV RANGE
MEV RANGE 10-100
NUCLEAR EMULSIONS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE PRODUCTION
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
PHOTOPROTONS
PROTONS
SPECTRA
TANTALUM 181 TARGET
TARGETS