ENTRY O1888 20221105 O091O1888 0 1 SUBENT O1888001 20221105 O091O1888 1 1 BIB 11 45 O1888 1 2 TITLE Proton induced fission of 181Ta at high excitation O1888 1 3 energies. O1888 1 4 AUTHOR (Y.Ayyad, J.Benlliure, E.Casarejos, H.Alvarez-Pol, O1888 1 5 A.Bacquias, A.Boudard, M.Caamano, T.Enqvist, V.Foehr, O1888 1 6 A.Kelic-Heil, K.Kezzar, S.Leray, D.Mancusi, C.Paradela,O1888 1 7 D.Perez-Loureiro, R.Pleskac, J.L.Rodrigues-Sanchez, O1888 1 8 D.Tarrio) O1888 1 9 INSTITUTE (2SPNSAU,2GERGSI,2FR SAC,2SF OUL) O1888 1 10 REFERENCE (J,PR/C,89,054610,2014) O1888 1 11 (J,KPS,59,1852,2011) prelim results O1888 1 12 (J,EPJ/CS,8,07011,2010) prelim results O1888 1 13 (C,2011GHENT,,(CINV07),2011) prelim results O1888 1 14 SAMPLE The target consisted of a liquid hydrogen cell O1888 1 15 85 mg/cm**2 inside a container with 100 mum titanium O1888 1 16 windows and a cryostat for liquefying the hydrogen. O1888 1 17 DETECTOR (MWPC) The Multi-wire chamber (MW) and thick iron slitsO1888 1 18 were used to collimate the 181Ta beam at the target. O1888 1 19 A first scintillator detector (start) placed upstream O1888 1 20 of the target, determined the beam flux. O1888 1 21 (IOCH) Two Multi-Sample Ionization Chambers (MUSIC), O1888 1 22 200 mm*80 mm window surface and 460 mm of active O1888 1 23 length, which measured the energy loss of the tantalum O1888 1 24 beam particles and that of the products of the O1888 1 25 reaction, respectively. These ionization chambers, O1888 1 26 has almost 100% efficiency for the detection of O1888 1 27 relativistic heavy nuclei. O1888 1 28 A veto scintillator with a 15 mm diameter hole placed O1888 1 29 just before the target allowed the rejection of beam- O1888 1 30 halo particles and misaligned beam trajectories. O1888 1 31 (SCIN) The two fission fragments were detected O1888 1 32 independently, but in temporal coincidence, by a doubleO1888 1 33 paddle scintillator, placed downstream of the target, O1888 1 34 300 mm*70 mm and 3 mm thickness each paddle. O1888 1 35 FACILITY (SYNCH,2GERGSI) The SIS18 synchrotron O1888 1 36 (LINAC,2GERGSI) the UNILAC linear accelerator O1888 1 37 METHOD (TOF) O1888 1 38 COMMENT *By authors*.Fission yields were obtained from fission-O1888 1 39 event measurements corrected by the background and O1888 1 40 additional effects such as the secondary reactions of O1888 1 41 the fragments in the target and the geometrical O1888 1 42 acceptance of the experimental setup. O1888 1 43 STATUS (TABLE) Table 3 of Phys.Rev.,C89(2014)054610 O1888 1 44 HISTORY (20110125C)SB O1888 1 45 (20140611A).Final reference was added O1888 1 46 (20221105U) SD: Ref. 2011GHENT added. O1888 1 47 ENDBIB 45 0 O1888 1 48 NOCOMMON 0 0 O1888 1 49 ENDSUBENT 48 0 O1888 199999 SUBENT O1888002 20140611 O053O188800200001 BIB 2 14 O188800200002 REACTION ((1-H-1(73-TA-181,F),,SIG)=(73-TA-181(P,F),,SIG)) O188800200003 Inverse kinematics. O188800200004 ERR-ANALYS (ERR-SYS) The uncertainty is given by author in O188800200005 table. O188800200006 (ERR-S).Statistical uncertainty is given by author in O188800200007 table. O188800200008 (ERR-1).Uncertainty in the beam intensity approx.5% O188800200009 (ERR-2).Uncertainty in the target thickness approx.4% O188800200010 (ERR-3,,5.0).Uncertainty of the geometrical correction O188800200011 factor was estimated to be smaller than 5%. O188800200012 (ERR-4,,1.).Uncertainty of the correction factors owingO188800200013 to the beam attenuation and the secondary reactions of O188800200014 the fission fragments were smaller than 1%. O188800200015 (ERR-T).Total uncertainty is reported in table O188800200016 ENDBIB 14 0 O188800200017 COMMON 2 3 O188800200018 ERR-1 ERR-2 O188800200019 PER-CENT PER-CENT O188800200020 5. 4. O188800200021 ENDCOMMON 3 0 O188800200022 DATA 5 4 O188800200023 EN DATA ERR-T ERR-S ERR-SYS O188800200024 MEV/A MB MB PER-CENT PER-CENT O188800200025 300. 6.55 1.00 0.48 15.21 O188800200026 500. 7.53 1.40 0.51 18.54 O188800200027 800. 13.09 1.62 0.32 12.34 O188800200028 1000. 20.17 2.19 0.46 10.85 O188800200029 ENDDATA 6 0 O188800200030 ENDSUBENT 29 0 O188800299999 ENDENTRY 2 0 O188899999999