LEVELS IN Cr$sup 50$, Cr$sup 52$, Cr$sup 53$, AND Cr$sup 5$$sup 4$

Journal Article · Wed Oct 15 00:00:00 EDT 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.112.468· OSTI ID:4293925

Porter, W C; Van Patter, D M; Rothman, M A; Mandeville, C E

Inelastically scattered proton spectra from targets of natural chromiuim and targets enriched in Cr/sup 50/, Cr/sup 53/, and Cr/sup 54/ have been studied for bombarding energies in the region of 4.3 to 4.6 Mev using a double-focusing magnetic spectrometer, at angles of observation of 91.5 and 136.2" . The enriched targets were prepared by the vacunm evaporation of Crsub 2/0/sub 3/ from a small carbon crucible mounted on a tungsten filament onto gold-leaf backings. Surveys were taken up to at least 2.O-Mev excitation. The following level energies in kev were deter mined: Cr /sup 50/,780 plus or minus 3; Cr/sup 52/, 1432 plus or minus 5; Crs/sup 53/, 562 plus or minus 3, 1006 plus or minus 4, and 1287 plus or minus 5; Cr/sup 54/, 842 plus or minus 6. The new level in Cr/sup 50/ occurs at the energy expected for the first 2+ state. Inelastically scattered proton groups corresponding to the known second excited states of Cr/ sup 52/ and Cr/sup 54/ were not of sufficient intensity to be observed. (auth)

• Research Organization: Franklin Inst., Swarthmore, Penna.
• NSA Number: NSA-13-002477
• OSTI ID: 4293925
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 112; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
CARBON
CHROMIUM 50
CHROMIUM 52
CHROMIUM 53
CHROMIUM 54
CHROMIUM OXIDES
ENERGY
ENERGY LEVELS
ENERGY RANGE
ENRICHMENT
EVAPORATION
FOILS
GOLD
INELASTIC SCATTERING
MAGNETIC FIELDS
MEASURED VALUES
NUCLEAR REACTIONS
PHYSICS AND MATHEMATICS
PROTON BEAMS
PROTONS
SCATTERING
SPECTRA
SPECTROMETERS
TARGETS
TUNGSTEN
VACUUM