Published April 1999 | Version v1
Journal article Metadata-only

Identification of a new neutron-deficient isotope 235Am

Creators

  • 1. Chinese Academy of Sciences, Lanzhou (China). Inst. of Modern Physics
  • 2. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics

Description

A neutron deficient isotope 235Am has been produced via the reaction 238Pu(p,4n) 235Am by 35 MeV proton bombardment of 238Pu. The reaction products were transported by the He-jet recoil-transport apparatus. Radiochemical separations were performed by liquid-liquid extraction to isolate the americium fraction fro the mixture of the reaction products. The chemically separated Am fractions were used for the X- and gamma-ray measurements. A new neutron-deficient isotope 235Am was definitely identified from the growth and decay of its daughter, 25.3 x min 235Pu and X- γ coincidence measurements. The 235Am half-life was determined to be 15±5 min. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
240
Journal Issue
1
Journal Page Range
p. 379-381
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
30022140
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
AMERICIUM 235; COINCIDENCE SPECTROMETRY; ELECTRON CAPTURE DECAY; GAMMA SPECTRA; HALF-LIFE; NEUTRON-DEFICIENT ISOTOPES; NEUTRONS; PLUTONIUM 238 TARGET; PROTON REACTIONS; SOLVENT EXTRACTION; X-RAY SPECTRA
Descriptors DEC
ACTINIDE NUCLEI; AMERICIUM ISOTOPES; BARYON REACTIONS; BARYONS; BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; COINCIDENCE METHODS; COUNTING TECHNIQUES; DECAY; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; EXTRACTION; FERMIONS; HADRON REACTIONS; HADRONS; HEAVY NUCLEI; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; ODD-EVEN NUCLEI; RADIOISOTOPES; SEPARATION PROCESSES; SPECTRA; TARGETS

Optional Information

Notes
9 refs.