New isotope /sup 199/Rn and evidence for an isomeric state /sup 199/Rn/sup m/

Journal Article · Thu May 01 00:00:00 EDT 1980 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.21.2101· OSTI ID:5446802

DiRienzo, A C; Enge, H A; Gazes, S B; Salomaa, M K; Sperduto, A; Schier, W; Wegner, H E

The nuclide /sup 199/Rn has been produced in the /sup 169/Tm(/sup 35/Cl,5n)/sup 199/Rn reaction. The recoiling /sup 199/Rn nuclei were separated from the beam at zero degrees by a recoil-separator arrangement utilizing electric and magnetic fields, and detected by their alpha decay signatures in a surface-barrier detector. Two alpha lines were found with energies 6.990 +- 0.015 MeV and 7.060 +- 0.015 MeV. Alpha decay of the known daughter /sup 195/Po was also observed.

• Research Organization: Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 5446802
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 21:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
CHARGED-PARTICLE REACTIONS
CHLORINE 35 REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DECAY
DISTRIBUTION
ELECTROSTATIC ACCELERATORS
ENERGY RANGE
EVAPORATION MODEL
EVEN-ODD NUCLEI
EXCITATION FUNCTIONS
FUSION REACTIONS
HALF-LIFE
HEAVY ION REACTIONS
HEAVY NUCLEI
ISOTOPE PRODUCTION
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
NANOSEC LIVING RADIOISOTOPES
NEUTRON SPECTRA
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
POLONIUM 195
POLONIUM ISOTOPES
RADIOISOTOPES
RADON 199
RADON ISOTOPES
RECOILS
SECONDS LIVING RADIOISOTOPES
SPECTRA
TARGETS
THULIUM 169 TARGET
VAN DE GRAAFF ACCELERATORS