ENTRY 41662 20190422 41824166200000001 SUBENT 41662001 20190422 41824166200100001 BIB 11 22 4166200100002 INSTITUTE (4RUSFTI) 4166200100003 REFERENCE (J,NP,6,561,1958) 4166200100004 (J,DOK,101,253,1955) Some preliminary results. 4166200100005 AUTHOR (V.S.Gvozdev,L.I.Rusinov,Yu.I.Filimonov,Yu.L.Khazov) 4166200100006 TITLE Investigation of nuclear isomerism in Hf180m 4166200100007 INC-SOURCE Thermal neutrons. 4166200100008 METHOD (ACTIV) Irradiation time 18hr, cooling time 8hr. 4166200100009 DETECTOR (GEMUC) 11 mm internal diameter. For beta detection. 4166200100010 (NAICR) NaI(Tl) crystal and FEU-29 photomultiplier. 4166200100011 For gamma detection. Resolution 9% for Cs-137 line. 4166200100012 CORRECTION For self-absorption. 4166200100013 ADD-RES (DECAY) Decay scheme of Hf-180m on Fig.8 . 4166200100014 . Coefficients of internal conversion ( measured): 4166200100015 Egamma,keV Type 4166200100016 al=0.33+-0.10 57.6 E1 4166200100017 ak=0.035+-0.014 501.2 E3 4166200100018 See also Table on page 571. 4166200100019 . Spin and parity of 1142.9 keV excited level was found4166200100020 to be 9- . 4166200100021 ERR-ANALYS (DATA-ERR) Type of error is not explained in the 4166200100022 article 4166200100023 HISTORY (20190422C) M.M. 4166200100024 ENDBIB 22 0 4166200100025 NOCOMMON 0 0 3 4166200100026 ENDSUBENT 25 0 4166200199999 SUBENT 41662002 20190422 41824166200200001 BIB 6 15 4166200200002 REACTION (72-HF-179(N,G)72-HF-180-M,,SIG) 4166200200003 SAMPLE (72-HF-179,NAT=0.138) 4166200200004 (72-HF-180,NAT=0.354) 4166200200005 Natural Hf fluoride on Al backing, prepared by 4166200200006 evaporation. 15 mm length, 1mm width. Placed on surface4166200200007 of carbon prism, Ta wire is inside this prism. 4166200200008 DECAY-DATA (72-HF-180-M,5.5HR,DG,57.6,,DG,501.2) 4166200200009 (72-HF-181,46.D,DG,133.,,DG,482.) Reference lines. 4166200200010 See reaction in ASSUMED line 4166200200011 ANALYSIS Cross section was calculated on the basis of the 4166200200012 Hf-180m and Ta-181 internal conversion electron line 4166200200013 intensities and ratio of the gamma-line intensities. 4166200200014 ASSUMED (ASSUM,72-HF-180(N,G)72-HF-181,,SIG) 4166200200015 STATUS (TABLE) Text of Abstract and text,page 571 of 4166200200016 Nucl.Phys.,v.6,p.561,1958 4166200200017 ENDBIB 15 0 4166200200018 NOCOMMON 0 0 4166200200019 DATA 5 1 4166200200020 EN-DUMMY DATA DATA-ERR ASSUM ASSUM-ERR 4166200200021 MEV MB MB B B 4166200200022 0.0253 0.18 0.07 10. 3. 4166200200023 ENDDATA 3 0 4166200200024 ENDSUBENT 23 0 4166200299999 ENDENTRY 2 0 4166299999999