Published 1978 | Version v1
Report Open

Levels in 165Tm excited by the decay of 9.8 min 165Yb

Creators

  • 1. Ustav Jaderne Fyziky, Rez (Czechoslovakia)
  • 2. Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Nuclear Problems
  • 3. AN Uzbekskoj SSR, Tashkent. Inst. Yadernoj Fiziki
  • 4. Technische Univ., Dresden (German Democratic Republic)

Description

The decay of 165Yb (Tsub(1/2) = 9.8 min) has been investigated with Ge(Li), Si(Li) and Na(Ti) detectors, a toroida β-spectrometer and magnetic β-spectrographs. The isobarically separated samples produced by the YASNAPP facility at the Dubna Institute were used. The simple γ-ray spectra, the conversion electron spectra, prompt nad delayed γ-γ coincidences have been measured. The decay scheme of 165Yb involving 40 excited states in 165Tm has been proposed. 112 transitions from observed 154 were introduced in the decay scheme. The level scheme of 165Tm is extended by adding 10 new leveles: 158.20.; 469.49.; 797.34; 830.98.; 889.85; 921.37; 1466.20; 1790.4O; 1846.56 and 2194.91 keV. spen, parity, log ft for 165Tm levels and multipolarity for some transitions are determined. The first memebers of the rotational bands 1/2+[411], 3/2+[411], 5/2+[402], 7/2+[404], 1/2-[541], 7/2-[523] and 9/2-[514] have been identified

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
29 p.
Report number
JINR-E--6-11299

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
10432014
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BETA-PLUS DECAY; COINCIDENCE SPECTROMETRY; DATA; ELECTRON SPECTRA; ENERGY-LEVEL TRANSITIONS; GAMMA SPECTRA; INTERNAL CONVERSION; KEV RANGE 10-100; KEV RANGE 100-1000; MEV RANGE 01-10; ROTATIONAL STATES; THULIUM 165; YTTERBIUM 165
Descriptors DEC
BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; COINCIDENCE METHODS; CONVERSION; COUNTING TECHNIQUES; DECAY; ELECTRON CAPTURE RADIOISOTOPES; ENERGY LEVELS; ENERGY RANGE; EVEN-ODD NUCLEI; EXCITED STATES; GAMMA DECAY; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; KEV RANGE; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; RARE EARTH NUCLEI; SPECTRA; THULIUM ISOTOPES; YTTERBIUM ISOTOPES

Optional Information

Notes
28 refs.; 5 tables; submitted to the journal Czech. J. Phys.