ENTRY 23441 20181031 22762344100000001 SUBENT 23441001 20181031 22762344100100001 BIB 11 56 2344100100002 TITLE First determination of beta-delayed multiple neutron 2344100100003 emission beyond A = 100 through direct neutron 2344100100004 measurement: The P2n value of 136Sb 2344100100005 AUTHOR (R.Caballero-Folch, I.Dillmann, J.Agramunt, J.L.Tain, 2344100100006 A.Algora, J.Aysto, F.Calvino, L.Canete, G.Cortes, 2344100100007 C.Domingo-Pardo, T.Eronen, E.Ganioglu, W.Gelletly, 2344100100008 D.Gorelov, V.Guadilla, J.Hakala, A.Jokinen, 2344100100009 A.Kankainen, V.Kolhinen, J.Koponen, M.Marta, 2344100100010 E.Mendoza, A.Montaner-Piza, I.Moore, C.R.Nobs, 2344100100011 S.E.A.Orrigo, H.Penttilae, I.Pohjalainen, 2344100100012 J.Reinikainen, A.Riego, S.Rinta-Antila, B.Rubio, 2344100100013 P.Salvador-Castineira, V.Simutkin, 2344100100014 A.Tarifeno-Saldivia, A.Tolosa-Delgado, A.Voss) 2344100100015 INSTITUTE (1CANTMF,2GERGSI,2SPNVAL,3HUNKOS,2SF JYV,2SF HLS, 2344100100016 2SPNUPC,2TUKSTU,2UK SUR,2SPNPCM) 2344100100017 (2UK UK) University of Brighton, Brighton, 2344100100018 United Kingdom 2344100100019 REFERENCE (J,PR/C,98,034310,2018) 2344100100020 #doi:10.1103/PhysRevC.98.034310 2344100100021 FACILITY (OLMS,2SF JYV) Penning trap mass spectrometer JYFLTRAP 2344100100022 at the Ion Guide Isotope Separator On-Line (IGISOL) 2344100100023 facility, located in the Accelerator Laboratory of the 2344100100024 University of Jyvaskyla, Finland (JYFL). 2344100100025 SAMPLE Pure ion beams of the isotopes of interest without 2344100100026 isobaric contaminations were produced in nuclear 2344100100027 fission induced by a 25 MeV proton beam with an 2344100100028 intensity of around 7-10 uA on a natural uranium 2344100100029 target. The JYFLTRAP double Penning trap was 2344100100030 used for mass selection of the different isobars 2344100100031 based on their cyclotron resonance frequences. 2344100100032 DETECTOR (SCIN) 3 mm thick plastic scintillator for beta 2344100100033 counting 2344100100034 (HE3SP) 48 3He counter tubes of 2.54 cm diameter 2344100100035 distributed in three concentric rings, and embedded 2344100100036 in a high-density polyethylene (HDPE) matrix to 2344100100037 moderate the neutrons. 2344100100038 One-neutron event detection efficiency in the 0.1-2 MeV2344100100039 energy range is 60% and constant. 2344100100040 Two-neutron event detection efficiency: 36% 2344100100041 The detectors' response were simulated by GEANT4 for 2344100100042 BELEN detector and MCNPX for beta-counter and 2344100100043 experimentally validated at En = 2.13 MeV using a 252Cf2344100100044 source and with beams of isotopes with well-known P1n 2344100100045 values, such as 95Rb and 137I. 2344100100046 PART-DET (B-,DN) 2344100100047 METHOD (COINC) This system integrates all signals from the 2344100100048 beta- and the 3He neutron counters recording their 2344100100049 energy, and a time stamp with a clock of 10 ns 2344100100050 resolution to be able to build the beta-neutron time 2344100100051 correlations over a certain time window. 2344100100052 For 136Sb P2n measurement beta-2n correlation events 2344100100053 were determined. 2344100100054 ANALYSIS (DECAY) The beta and neutron integrals were determined 2344100100055 from the growth-and decay curves using the Bateman 2344100100056 equations. 2344100100057 HISTORY (20181031C) VS 2344100100058 ENDBIB 56 0 2344100100059 NOCOMMON 0 0 2344100100060 ENDSUBENT 59 0 2344100199999 SUBENT 23441002 20181031 22762344100200001 BIB 4 4 2344100200002 REACTION (52-TE-136(0,B-)53-I-136,,PN) 2344100200003 DECAY-DATA (52-TE-136,17.36SEC) 17.63 +- 0.08 2344100200004 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties. 2344100200005 STATUS (TABLE) Table IV of the Phys.Rev.C 98(2018)034310 2344100200006 ENDBIB 4 0 2344100200007 NOCOMMON 0 0 2344100200008 DATA 2 1 2344100200009 DATA DATA-ERR 2344100200010 NO-DIM NO-DIM 2344100200011 0.0147 0.0006 2344100200012 ENDDATA 3 0 2344100200013 ENDSUBENT 12 0 2344100299999 SUBENT 23441003 20190121 22762344100300001 BIB 4 4 2344100300002 REACTION (51-SB-136(0,B-)52-TE-135,,PN) 2344100300003 DECAY-DATA (51-SB-136,0.923SEC) 0.923 +- 0.014 2344100300004 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties. 2344100300005 STATUS (TABLE) Table IV of the Phys.Rev.C 98(2018)034310 2344100300006 ENDBIB 4 0 2344100300007 NOCOMMON 0 0 2344100300008 DATA 2 1 2344100300009 DATA DATA-ERR 2344100300010 NO-DIM NO-DIM 2344100300011 0.322 0.015 2344100300012 ENDDATA 3 0 2344100300013 ENDSUBENT 12 0 2344100399999 SUBENT 23441004 20190121 22762344100400001 BIB 4 4 2344100400002 REACTION (51-SB-136(0,B-)52-TE-135,NUM,PN) 2344100400003 DECAY-DATA (51-SB-136,0.923SEC) 0.923 +- 0.014 2344100400004 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties. 2344100400005 STATUS (TABLE) Table IV of the Phys.Rev.C 98(2018)034310 2344100400006 ENDBIB 4 0 2344100400007 NOCOMMON 0 0 2344100400008 DATA 3 1 2344100400009 PART-OUT DATA DATA-ERR 2344100400010 NO-DIM NO-DIM NO-DIM 2344100400011 2. 0.0014 0.0003 2344100400012 ENDDATA 3 0 2344100400013 ENDSUBENT 12 0 2344100499999 ENDENTRY 4 0 2344199999999