ENTRY 41662 20190422 418241662 0 1 SUBENT 41662001 20190422 418241662 1 1 BIB 11 22 41662 1 2 INSTITUTE (4RUSFTI) 41662 1 3 REFERENCE (J,NP,6,561,1958) 41662 1 4 (J,DOK,101,253,1955) Some preliminary results. 41662 1 5 AUTHOR (V.S.Gvozdev,L.I.Rusinov,Yu.I.Filimonov,Yu.L.Khazov) 41662 1 6 TITLE Investigation of nuclear isomerism in Hf180m 41662 1 7 INC-SOURCE Thermal neutrons. 41662 1 8 METHOD (ACTIV) Irradiation time 18hr, cooling time 8hr. 41662 1 9 DETECTOR (GEMUC) 11 mm internal diameter. For beta detection. 41662 1 10 (NAICR) NaI(Tl) crystal and FEU-29 photomultiplier. 41662 1 11 For gamma detection. Resolution 9% for Cs-137 line. 41662 1 12 CORRECTION For self-absorption. 41662 1 13 ADD-RES (DECAY) Decay scheme of Hf-180m on Fig.8 . 41662 1 14 . Coefficients of internal conversion ( measured): 41662 1 15 Egamma,keV Type 41662 1 16 al=0.33+-0.10 57.6 E1 41662 1 17 ak=0.035+-0.014 501.2 E3 41662 1 18 See also Table on page 571. 41662 1 19 . Spin and parity of 1142.9 keV excited level was found41662 1 20 to be 9- . 41662 1 21 ERR-ANALYS (DATA-ERR) Type of error is not explained in the 41662 1 22 article 41662 1 23 HISTORY (20190422C) M.M. 41662 1 24 ENDBIB 22 0 41662 1 25 NOCOMMON 0 0 3 41662 1 26 ENDSUBENT 25 0 41662 199999 SUBENT 41662002 20190422 418241662 2 1 BIB 6 15 41662 2 2 REACTION (72-HF-179(N,G)72-HF-180-M,,SIG) 41662 2 3 SAMPLE (72-HF-179,NAT=0.138) 41662 2 4 (72-HF-180,NAT=0.354) 41662 2 5 Natural Hf fluoride on Al backing, prepared by 41662 2 6 evaporation. 15 mm length, 1mm width. Placed on surface41662 2 7 of carbon prism, Ta wire is inside this prism. 41662 2 8 DECAY-DATA (72-HF-180-M,5.5HR,DG,57.6,,DG,501.2) 41662 2 9 (72-HF-181,46.D,DG,133.,,DG,482.) Reference lines. 41662 2 10 See reaction in ASSUMED line 41662 2 11 ANALYSIS Cross section was calculated on the basis of the 41662 2 12 Hf-180m and Ta-181 internal conversion electron line 41662 2 13 intensities and ratio of the gamma-line intensities. 41662 2 14 ASSUMED (ASSUM,72-HF-180(N,G)72-HF-181,,SIG) 41662 2 15 STATUS (TABLE) Text of Abstract and text,page 571 of 41662 2 16 Nucl.Phys.,v.6,p.561,1958 41662 2 17 ENDBIB 15 0 41662 2 18 NOCOMMON 0 0 41662 2 19 DATA 5 1 41662 2 20 EN-DUMMY DATA DATA-ERR ASSUM ASSUM-ERR 41662 2 21 MEV MB MB B B 41662 2 22 0.0253 0.18 0.07 10. 3. 41662 2 23 ENDDATA 3 0 41662 2 24 ENDSUBENT 23 0 41662 299999 ENDENTRY 2 0 4166299999999