Upper limit for the presence of superheavy elements in monazite from Madagascar

Journal Article · Fri Jul 01 00:00:00 EDT 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.16.477· OSTI ID:7318983

Middleton, R; Stephens, W E; Moore, G E; Cobern, M E; Fortune, H T; Faul, H

Elastic scattering of 12-MeV /sup 7/Li ions from targets made from Madagascar monazite shows no evidence for the presence of superheavy elements. Upper limits on fractional atomic abundances are 3 x 10/sup -6/ for eka-thorium and 6 x 10/sup -8/ for eka-lead.

• Research Organization: Physics Department, University of Pennsylvania, Philadelphia, Pennsylvania 19174
• OSTI ID: 7318983
• Journal Information: Phys. Rev., C; (United States), Vol. 16:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
LITHIUM 7 REACTIONS
ELASTIC SCATTERING
MONAZITES
TRANS 104 ELEMENTS
NATURAL OCCURRENCE
ABUNDANCE
ALPHA REACTIONS
LEAD
MEV RANGE 10-100
MICA
PROTONS
THORIUM
ACTINIDE COMPOUNDS
ACTINIDES
BARYONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
HADRONS
HEAVY ION REACTIONS
METALS
MEV RANGE
MINERALS
NUCLEAR REACTIONS
NUCLEONS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RARE EARTH COMPOUNDS
SCATTERING
THORIUM COMPOUNDS
THORIUM MINERALS
THORIUM PHOSPHATES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
651925* - Nuclear Properties & Reactions
A=190-219
Experimental- Nuclear Reactions & Scattering- (-1987)
652025 - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)