ENTRY 23315 20161102 22552331500000001 SUBENT 23315001 20161102 22552331500100001 BIB 12 68 2331500100002 AUTHOR (J.Agramunt, A.R.Garcia, A.Algora, J.Aeystoe, 2331500100003 R.Caballero-Folch, F.Calvino, D.Cano-Ott, G.Cortes, 2331500100004 C.Domingo-Pardo, T.Eronen, W.Gelletly, 2331500100005 M.B.Gomez-Hornillos, J.Hakala, A.Jokinen, D.Jordan, 2331500100006 A.Kankainen, V.Kolkinen, T.Martinez, P.J.Mason,I.Moore,2331500100007 H.Penttilae,Zs.Podolyak, M.Reponen,A.Riego, J.Rissanen,2331500100008 B.Rubio, A.Saastamoinen, J.L.Tain, E.Valencia) 2331500100009 TITLE New Beta-delayed Neutron Measurements in the Light-mass2331500100010 Fission Group . 2331500100011 REFERENCE (J,NDS,120,74,2014) 2331500100012 #doi:10.1016/j.nds.2014.07.010 2331500100013 INSTITUTE (2SPNVAL) J.Agramunt,A.Algora,C.Domingo-Pardo,D.Jordan,2331500100014 B.Rubio,J.L.Tain,E.Valencia. 2331500100015 (2SPNPCM) A.R.Garcia, D.Cano-Ott,T.Martinez. 2331500100016 (2SF JYV) J.Aeystoe,T.Eronen,J.Hakala,A.Jokinen, 2331500100017 A.Kankainen,V.Kolkinen,I.Moore,H.Penttilae,M.Reponen, 2331500100018 J.Rissanen,A.Saastamoinen. 2331500100019 (2SPNUPC) R.Caballero-Folch,F.Calvino,G.Cortes, 2331500100020 M.B.Gomez-Hornillos,A.Riego. 2331500100021 (2UK SUR) W.Gelletly,P.J.Mason,Zs.Podolyak. 2331500100022 FACILITY (OLMS,2SF JYV) Penning trap coupled to the IGISOL mass 2331500100023 separator . 2331500100024 METHOD (MASSP) Fission fragments were produced by 25-MeV 2331500100025 protons on a thin Th target inside the ion guide source2331500100026 of the IGISOL mass separator. 2331500100027 Implantation rates varied between 6 ions/s for 85Ge and2331500100028 1430 ions/s for 88Br. 2331500100029 DETECTOR (D4PI) Neutrons were detected in the BELEN 4PI neutron 2331500100030 counter, consisting of 20 3He proportional tubes with 2331500100031 a gas volume of 2.5cm diameter*60cm at pressure 20 atm.2331500100032 Eight tubes were placed at a radius of 9.5 cm and the 2331500100033 remaining twelve at a radius of 14.5 cm. 2331500100034 The detection efficiency EPSn for this disposition, 2331500100035 as calculated by Monte Carlo (MC) simulations, 2331500100036 is close to 50% for neutron energies up to 1 MeV. 2331500100037 (SI) A 1-mm thick Si detector for beta counting was 2331500100038 placed in front of the implantation point, behind the 2331500100039 tape, and achieved a beta detection efficiency EPSbeta 2331500100040 of about 25%. 2331500100041 (HPGE) Large volume HPGe detector was placed behind the2331500100042 Si detector to monitor source activity. 2331500100043 The ratio EPSbeta/EPSn was determined from calibration2331500100044 runs performed for isotopes with well known Pn values, 2331500100045 88Br, 94Rb, 95Rb, 137I . 2331500100046 ANALYSIS Pn values were determined from the ratio of neutrons 2331500100047 emitted Nn to the number of decays, measured by the 2331500100048 number of beta-particles emitted Nbeta : 2331500100049 Pn= (EPSbeta/EPSn)/(Nn/Nbeta) 2331500100050 ADD-RES (COMP) Two different theoretical calculations performed2331500100051 in the framework of the quasiparticle random phase 2331500100052 approximation (QRPA) - Fig.4 of J,NDS,120,74,2014 : 2331500100053 - The beta-strength calculations of P.Moeller+ are 2331500100054 built on macroscopic-microscopic mass models and 2331500100055 include first-forbidden (FF) transitions, calculated 2331500100056 within the phenomenological gross theory, in addition 2331500100057 to the ordinary Gamow-Teller (GT) transitions; 2331500100058 - The calculations of I.N.Borzov are based on energy 2331500100059 density functionals to obtain ground state properties, 2331500100060 and both GT and FF transitions are treated in a 2331500100061 consistent microscopic way. 2331500100062 REL-REF (N,,P.Moeller+,J,PR/C,67,055802,2003) 2331500100063 (N,,I.N.Borzov,J,PR/C,71,065801,2005) 2331500100064 (N,,I.N.Borzov,J,NP/A,777,645,2006) 2331500100065 Details of theoretical calculations- see ADD-RES. 2331500100066 COMMENT This work was partially supported by Spanish 2331500100067 Ministerio de Economia y Competitividad under grants 2331500100068 FPA2008-06419, FPA2011-24553, FPA2011-28770-C03-03. 2331500100069 HISTORY (20161101C) M.M. 2331500100070 ENDBIB 68 0 2331500100071 NOCOMMON 0 0 2331500100072 ENDSUBENT 71 0 2331500199999 SUBENT 23315002 20161102 22552331500200001 BIB 4 7 2331500200002 REACTION (35-BR-91(0,B-)36-KR-91,,PN) 2331500200003 REL-REF (A,,B.Pfeiffer+,J,PNE,41,39,2002) Close 2331500200004 (D,,G.Rudstam+,J,AND,53,1,1993) 57 % larger 2331500200005 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in 2331500200006 the article. 2331500200007 STATUS (TABLE) Text, page 76 of J,NDS,120,74,2014 2331500200008 (PRELM) Preliminary results 2331500200009 ENDBIB 7 0 2331500200010 NOCOMMON 0 0 2331500200011 DATA 2 1 2331500200012 DATA DATA-ERR 2331500200013 NO-DIM NO-DIM 2331500200014 0.295 0.005 2331500200015 ENDDATA 3 0 2331500200016 ENDSUBENT 15 0 2331500299999 SUBENT 23315003 20161102 22552331500300001 BIB 4 7 2331500300002 REACTION (33-AS-86(0,B-)34-SE-86,,PN) 2331500300003 REL-REF (D,,G.Rudstam+,J,AND,53,1,1993) Larger 8% 2331500300004 (D,,B.Pfeiffer+,J,PNE,41,39,2002) Larger 37% 2331500300005 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in 2331500300006 the article. 2331500300007 STATUS (TABLE) Text, page 76 of J,NDS,120,74,2014 2331500300008 (PRELM) Preliminary results 2331500300009 ENDBIB 7 0 2331500300010 NOCOMMON 0 0 2331500300011 DATA 2 1 2331500300012 DATA DATA-ERR 2331500300013 NO-DIM NO-DIM 2331500300014 0.355 0.006 2331500300015 ENDDATA 3 0 2331500300016 ENDSUBENT 15 0 2331500399999 SUBENT 23315004 20161102 22552331500400001 BIB 4 7 2331500400002 REACTION (33-AS-85(0,B-)34-SE-85,,PN) 2331500400003 REL-REF (D,,G.Rudstam+,J,AND,53,1,1993) Larger 6% 2331500400004 (D,,B.Pfeiffer+,J,PNE,41,39,2002) Larger 15% 2331500400005 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in 2331500400006 the article. 2331500400007 STATUS (TABLE) Text, page 76 of J,NDS,120,74,2014 2331500400008 (PRELM) Preliminary results 2331500400009 ENDBIB 7 0 2331500400010 NOCOMMON 0 0 2331500400011 DATA 2 1 2331500400012 DATA DATA-ERR 2331500400013 NO-DIM NO-DIM 2331500400014 0.631 0.010 2331500400015 ENDDATA 3 0 2331500400016 ENDSUBENT 15 0 2331500499999 SUBENT 23315005 20161102 22552331500500001 BIB 4 8 2331500500002 REACTION (32-GE-85(0,B-)33-AS-86,,PN) 2331500500003 REL-REF (A,,K.-L.Kratz+,J,ZP/A,340,419,1991) Agree 2331500500004 ERR-ANALYS (DATA-ERR) Uncertainty is based on the 68.3% confidence2331500500005 interval around the minimum of the graph representing 2331500500006 the value of the log-likelihood as a function of Pn 2331500500007 value. 2331500500008 STATUS (TABLE) Text, page 76 of J,NDS,120,74,2014 2331500500009 (PRELM) Preliminary results 2331500500010 ENDBIB 8 0 2331500500011 NOCOMMON 0 0 2331500500012 DATA 2 1 2331500500013 DATA DATA-ERR 2331500500014 NO-DIM NO-DIM 2331500500015 0.172 0.018 2331500500016 ENDDATA 3 0 2331500500017 ENDSUBENT 16 0 2331500599999 ENDENTRY 5 0 2331599999999