ENTRY 41570 20130506 41614157000000001 SUBENT 41570001 20130506 41614157000100001 BIB 12 32 4157000100002 TITLE Statistical analysis of gamma-multiplicity experimental4157000100003 data. 4157000100004 AUTHOR (G.P.Georgiev,T.P.Madjarski, N.B.Janeva) 4157000100005 INSTITUTE (4ZZZDUB) G.P.Georgiev 4157000100006 (3BULBLA) T.P.Madjarski, N.B.Yaneva (=N.B.Yaneva) 4157000100007 REFERENCE (S,ISINN-3,101,1995) Tables of Res.energies,spin,parity4157000100008 In English. 4157000100009 (C,93FRIBOU,,581,1994) 4157000100010 (W,JANEVA,2003) In English. 4157000100011 Article was received in CJD 06 May 2013 from 4157000100012 BNL,S.Mughabghab, who received in 2003 this article 4157000100013 from N.Janeva . First author T.P.Madjarski. 4157000100014 'Resonance parameters of Hf-179'. Prelim.data. 4157000100015 FACILITY (REAC,4ZZZDUB) Fast pulse reactor IBR-30 . 4157000100016 INC-SOURCE (REAC) Collimated neutron beam. 4157000100017 METHOD (TOF) Flight path is 500 m 4157000100018 (COINC) Coincidence multiplicity of gamma-quanta. 4157000100019 Simultaneous measurements of TOF spectra of neutron 4157000100020 capture and neutron scattering. 4157000100021 Single 480 keV gammas produced in B10(n,alpha+gamma) 4157000100022 reaction caused by neutrons scattered in the target and4157000100023 occuring in the thin boron converter surrounding it, 4157000100024 were detected. 4157000100025 DETECTOR (NAICR) 4-pi "daisy-type" (Romashka) scintillation 4157000100026 detector, 16 independent NaI(Tl) crystal sections of 4157000100027 122x122x152 mm3, each viewed by photomultiplier. 4157000100028 Total amount of scintillator about 33 l. 4157000100029 SAMPLE 2.14E-4 nucl/barn of Hf-179. 4157000100030 2.88E-4 nucl/barn of Hf-176. 4157000100031 ERR-ANALYS (DATA-ERR) Errors are not specified 4157000100032 STATUS (COREL,41200001) Data for Sn. 4157000100033 HISTORY (20130506C) M.M. 4157000100034 ENDBIB 32 0 4157000100035 NOCOMMON 0 0 4157000100036 ENDSUBENT 35 0 4157000199999 SUBENT 41570002 20130506 41614157000200001 BIB 7 36 4157000200002 REACTION 1(72-HF-179(N,0),,EN) Resonance energy 4157000200003 2(72-HF-179(N,G),,WID) Gamma-width 4157000200004 3(72-HF-179(N,0),,J) Spin of the resonance 4157000200005 4(72-HF-179(N,0),,PTY) Parity of the resonance 4157000200006 ANALYSIS (AREA) Radiative widths were calculated by using ratios4157000200007 obtained in this experiment and values of 2g*Gn from 4157000200008 REL-REF. Ratio for resonance was defined as 4157000200009 (Sn/Sgamma)*(EPSgamma/EPSn), where 4157000200010 S- area under resonance peak, 4157000200011 EPS - registration efficiency 4157000200012 for scattering (n) and capture (gamma) events. 4157000200013 Values of efficiency of multidetector system obtained 4157000200014 by statistical modelling ( code ROMSD): 4157000200015 EPSgamma(4+)=74.2%, EPSgamma(5+)=76.5%, 4157000200016 EPSn=32.5% for 165.7 - 202.6 eV, 4157000200017 33.3% 82.94 - 165.7 eV, 4157000200018 35.0% 31.14 - 82.94 eV. 4157000200019 ASSUMED (ASSUM,72-HF-179(N,EL),,WID,,2G) 4157000200020 REL-REF (R,,S.F.Mughabghab,B,NEUT.CS 1B,,1984) 4157000200021 Reference for ASSUM . 4157000200022 (N,,G.P.Georgiev+,J,BJP,18,1,1991) Code ROMSD . 4157000200023 ADD-RES Average values of widths are given (milli-eV) as: 4157000200024 Spin,parity Gn Ggamma 4157000200025 5+ 42.6 50.3 4157000200026 4+ 19.1 39.6 4157000200027 In C,93FRIBOU,,581,1994 average Ggamma is given as 4157000200028 47+-6 milli-eV. 4157000200029 strength function S0 in the range up to 200 eV as 4157000200030 (1.8+1.0-0.7)*10**-4 for 4+ set, 4157000200031 (2.4+1.2-0.8)*10**-4 for 5+ set of resonances. 4157000200032 COMMENT Financial support under contract NFNI 571, Bulgarian 4157000200033 Research Foundation. 4157000200034 STATUS (TABLE) Table of W,JANEVA,2003 . 4157000200035 Table 2 of S,ISINN-3,101,1995 -res.energies,spin,parity4157000200036 (PRELM) Preliminary results as mentioned in 4157000200037 W,JANEVA,2003 . 4157000200038 ENDBIB 36 0 4157000200039 NOCOMMON 0 0 4157000200040 DATA 7 38 4157000200041 DATA 1DATA 2DATA-ERR 2DATA 3DATA 4ASSUM 4157000200042 ASSUM-ERR 4157000200043 EV MILLI-EV MILLI-EV NO-DIM NO-DIM MILLI-EV 4157000200044 MILLI-EV 4157000200045 26.50 4157000200046 4157000200047 27.35 5. +1. 4157000200048 4157000200049 31.14 30.8 4.7 4. +1. 7.5 4157000200050 0.7 4157000200051 36.50 54.3 9.2 5. +1. 30. 4157000200052 5. 4157000200053 40.12 44.2 2.3 5. +1. 25. 4157000200054 1. 4157000200055 42.29 38.4 3.3 4. +1. 13. 4157000200056 2. 4157000200057 54.79 23.3 6.3 4. +1. 5.3 4157000200058 1. 4157000200059 69.03 4. +1. 4157000200060 4157000200061 72.50 4157000200062 4157000200063 73.53 51.0 24.4 4. +1. 8. 4157000200064 2. 4157000200065 76.63 5. +1. 4157000200066 4157000200067 82.94 27.2 19.1 5. +1. 6. 4157000200068 2. 4157000200069 85.42 33.6 15.1 4. +1. 7.0 4157000200070 1.5 4157000200071 92.67 4157000200072 4157000200073 101.20 58.1 4.6 5. +1. 130. 4157000200074 10. 4157000200075 103.7 5. +1. 4157000200076 4157000200077 107.8 4157000200078 4157000200079 117.20 56.6 10.6 4. +1. 39. 4157000200080 7. 4157000200081 120.1 4. +1. 4157000200082 4157000200083 129.90 13.6 5.1 4. +1. 10. 4157000200084 3. 4157000200085 137.2 5. +1. 4157000200086 4157000200087 138.1 4. +1. 4157000200088 4157000200089 144.20 63.0 15.6 5. +1. 28. 4157000200090 6. 4157000200091 147.0 4. +1. 4157000200092 4157000200093 152.3 4. +1. 4157000200094 4157000200095 156.30 49.6 9.5 5. +1. 44. 4157000200096 6. 4157000200097 158.6 4157000200098 4157000200099 165.70 33.8 14.3 5. +1. 22. 4157000200100 9. 4157000200101 172.0 4157000200102 4157000200103 177.9 5. +1. 4157000200104 4157000200105 182.60 69.6 25.5 4. +1. 48. 4157000200106 17. 4157000200107 188.5 5. +1. 4157000200108 4157000200109 189.8 4157000200110 4157000200111 192.9 4157000200112 4157000200113 197.9 4157000200114 4157000200115 202.6 71.8 27.6 5. +1. 90. 4157000200116 13. 4157000200117 206.0 4. +1. 4157000200118 4157000200119 213.3 4157000200120 4157000200121 ENDDATA 80 0 4157000200122 ENDSUBENT 121 0 4157000299999 SUBENT 41570003 20130506 41614157000300001 BIB 2 3 4157000300002 REACTION (72-HF-179(N,0),,D) 4157000300003 Average level spacing for specified spin and parity 4157000300004 STATUS (TABLE) Text of S,ISINN-3,101,1994, page 108. 4157000300005 ENDBIB 3 0 4157000300006 COMMON 1 3 4157000300007 EN-RES-MAX 4157000300008 EV 4157000300009 213.3 4157000300010 ENDCOMMON 3 0 4157000300011 DATA 3 2 4157000300012 DATA SPIN J PARITY 4157000300013 EV NO-DIM NO-DIM 4157000300014 9.94 5. +1. 4157000300015 10.46 4. +1. 4157000300016 ENDDATA 4 0 4157000300017 ENDSUBENT 16 0 4157000399999 SUBENT 41570004 20130506 41614157000400001 BIB 2 3 4157000400002 REACTION (72-HF-179(N,0),,D) 4157000400003 Average level spacing 4157000400004 STATUS (TABLE) Text of S,ISINN-3,101,1994, page 108. 4157000400005 ENDBIB 3 0 4157000400006 NOCOMMON 0 0 4157000400007 DATA 2 1 4157000400008 EN-RES-MAX DATA 4157000400009 EV EV 4157000400010 213.3 4.54 4157000400011 ENDDATA 3 0 4157000400012 ENDSUBENT 11 0 4157000499999 SUBENT 41570005 20130506 41614157000500001 BIB 2 3 4157000500002 REACTION (72-HF-180(0,0),,SCO) 4157000500003 Spin-cut-off parameter 4157000500004 STATUS (TABLE) Text of S,ISINN-3,101,1994, page 108. 4157000500005 ENDBIB 3 0 4157000500006 NOCOMMON 0 0 4157000500007 DATA 1 1 4157000500008 DATA 4157000500009 NO-DIM 4157000500010 5.2 4157000500011 ENDDATA 3 0 4157000500012 ENDSUBENT 11 0 4157000599999 SUBENT 41570006 20130506 41614157000600001 BIB 2 2 4157000600002 REACTION (72-HF-176(N,0),,D) 4157000600003 STATUS (TABLE) Text of C,93FRIBOU,,581,1994 . 4157000600004 ENDBIB 2 0 4157000600005 NOCOMMON 0 0 4157000600006 DATA 4 1 4157000600007 EN-RES-MAX DATA DATA-ERR MOMENTUM L 4157000600008 EV EV EV NO-DIM 4157000600009 1500. 37. 7. 0. 4157000600010 ENDDATA 3 0 4157000600011 ENDSUBENT 10 0 4157000699999 SUBENT 41570007 20130506 41614157000700001 BIB 3 4 4157000700002 REACTION (72-HF-176(N,G),,WID,,AV) 4157000700003 ADD-RES 17 new levels were observed for Hf-176 in energy range4157000700004 up to 1500.eV. 4157000700005 STATUS (TABLE) Text of C,93FRIBOU,,581,1994 . 4157000700006 ENDBIB 4 0 4157000700007 NOCOMMON 0 0 4157000700008 DATA 3 1 4157000700009 EN-RES-MAX DATA DATA-ERR 4157000700010 EV EV EV 4157000700011 1500. 45. 15. 4157000700012 ENDDATA 3 0 4157000700013 ENDSUBENT 12 0 4157000799999 SUBENT 41570008 20130506 41614157000800001 BIB 2 4 4157000800002 REACTION (72-HF-176(N,G),,STF) 4157000800003 Strength function S0. 4157000800004 STATUS (TABLE) Text of C,93FRIBOU,,581,1994 . 4157000800005 (PRELM) Preliminary data. 4157000800006 ENDBIB 4 0 4157000800007 COMMON 3 3 4157000800008 MOMENTUM L EN-RES-MAX PARITY 4157000800009 NO-DIM EV NO-DIM 4157000800010 0. 200. +1. 4157000800011 ENDCOMMON 3 0 4157000800012 DATA 4 2 4157000800013 DATA +DATA-ERR -DATA-ERR SPIN J 4157000800014 NO-DIM NO-DIM NO-DIM NO-DIM 4157000800015 1.8E-04 1.0E-04 0.7E-04 4. 4157000800016 2.4E-04 1.2E-04 0.8E-04 5. 4157000800017 ENDDATA 4 0 4157000800018 ENDSUBENT 17 0 4157000899999 ENDENTRY 8 0 4157099999999