ENTRY L0197 20141118 L025L019700000001 SUBENT L0197001 20141118 L025L019700100001 BIB 7 19 L019700100002 TITLE Photoneutron strengths in 26Mg at energies of L019700100003 astrophysical interest L019700100004 AUTHOR (R.J.deBoer,A.Best,J.Gorres,K.Smith,W.Tan,M.Wiescher, L019700100005 R.Raut,G.Rusev,A.P.Tonchev,W.Tornow) L019700100006 INSTITUTE (1USANOT,1USATNL,1USADKE) L019700100007 REFERENCE (J,PR/C,89,055802,2014) L019700100008 FACILITY (ESTRG,1USATNL) Experiment performed at the High L019700100009 Intensity Gamma-Ray Source (HIGS) at Triangle L019700100010 University Nuclear Laboratiry in Durham L019700100011 INC-SOURCE (LCS)A circular polarized gamma-ray beam was produced L019700100012 by Compton backscattering of laser photons from L019700100013 relativistic electrons in a storage ring. Electrons L019700100014 were accelerated by a 280-MeV linear accelerator and L019700100015 then further accelerated by a booster synchrotron to L019700100016 energies ranging from 498 to 548 MeV. L019700100017 A 1-cm-diameter lead collimator, positioned 3.5 L019700100018 m upstream from the sample, was used to define the L019700100019 gamma-ray beam size which was incident on the sample. L019700100020 HISTORY (20141118C) Compiled by S.H. L019700100021 ENDBIB 19 0 L019700100022 NOCOMMON 0 0 L019700100023 ENDSUBENT 22 0 L019700199999 SUBENT L0197002 20141118 L025L019700200001 BIB 5 21 L019700200002 REACTION (12-MG-26(G,N)12-MG-25,,SIG) L019700200003 SAMPLE (12-MG-24,ENR=0.0041) L019700200004 (12-MG-25,ENR=0.0018) L019700200005 (12-MG-26,ENR=0.9941) L019700200006 The primary sample consisted of 16.4185 g of magnesium-L019700200007 oxide (MgO) powder, enriched in 26Mg. The sample was L019700200008 contained in polycarbonate cylindrical container L019700200009 with 0.16-cm-thick walls and end caps,with an inner L019700200010 cavity 2.30 cm in diameter and 3.10 cm in length. L019700200011 DETECTOR (HE3SP) The detector consisted of several 3He L019700200012 counters moderated by polyethylene and covered a L019700200013 solid angle of nearly 4Pi. The setup was positioned L019700200014 symmetrically along the beam axis. Samples were L019700200015 placed at the center of the detector with their L019700200016 cylindrical axis centered along the beam direction. L019700200017 To decrease the background, cadmium sheets and L019700200018 boron-loaded polyethylene blocks were placed as L019700200019 shielding upstream of the detector. L019700200020 STATUS (TABLE) Data presented in fig. 2a of the reference L019700200021 sent by author (R.deBoer) L019700200022 ERR-ANALYS (DATA-ERR) No information given L019700200023 ENDBIB 21 0 L019700200024 COMMON 1 3 L019700200025 EN-RSL L019700200026 MEV L019700200027 0.2 L019700200028 ENDCOMMON 3 0 L019700200029 DATA 3 14 L019700200030 EN DATA DATA-ERR L019700200031 MEV MB MB L019700200032 11.0 0.22 0.017 L019700200033 11.15 1.09 0.084 L019700200034 11.3 2.45 0.186 L019700200035 11.45 2.61 0.196 L019700200036 11.6 5.45 0.407 L019700200037 11.75 5.91 0.45 L019700200038 11.9 3.07 0.232 L019700200039 12.05 2.84 0.211 L019700200040 12.09 0.37 0.029 L019700200041 12.27 2.17 0.163 L019700200042 12.375 2.96 0.213 L019700200043 12.525 4.04 0.311 L019700200044 12.675 6.82 0.522 L019700200045 12.825 4.28 0.322 L019700200046 ENDDATA 16 0 L019700200047 ENDSUBENT 46 0 L019700299999 SUBENT L0197003 20141118 L025L019700300001 BIB 5 17 L019700300002 REACTION (12-MG-0(G,N),,SIG) L019700300003 SAMPLE Natural MgO sample with wight of 4.3 g. The sample was L019700300004 contained in polycarbonate cylindrical container L019700300005 with 0.16-cm-thick walls and end caps,with an inner L019700300006 cavity 2.30 cm in diameter and 3.10 cm in length. L019700300007 DETECTOR (HE3SP) The detector consisted of several 3He L019700300008 counters moderated by polyethylene and covered a L019700300009 solid angle of nearly 4Pi. The setup was positioned L019700300010 symmetrically along the beam axis. Samples were L019700300011 placed at the center of the detector with their L019700300012 cylindrical axis centered along the beam direction. L019700300013 To decrease the background, cadmium sheets and L019700300014 boron-loaded polyethylene blocks were placed as L019700300015 shielding upstream of the detector. L019700300016 ERR-ANALYS (DATA-ERR) No information given L019700300017 STATUS (TABLE) Data presented in fig. 2b of the reference L019700300018 sent by author (R.deBoer) L019700300019 ENDBIB 17 0 L019700300020 COMMON 1 3 L019700300021 EN-RSL L019700300022 MEV L019700300023 0.2 L019700300024 ENDCOMMON 3 0 L019700300025 DATA 3 14 L019700300026 EN DATA DATA-ERR L019700300027 MEV MB MB L019700300028 11.0 0.15 0.012 L019700300029 11.15 0.41 0.032 L019700300030 11.3 0.56 0.042 L019700300031 11.45 0.5 0.037 L019700300032 11.6 0.96 0.072 L019700300033 11.75 1.03 0.079 L019700300034 11.9 1.04 0.079 L019700300035 12.05 1.02 0.076 L019700300036 12.09 0.34 0.027 L019700300037 12.27 0.62 0.046 L019700300038 12.375 0.68 0.049 L019700300039 12.525 1.18 0.091 L019700300040 12.675 1.5 0.115 L019700300041 12.825 1.05 0.079 L019700300042 ENDDATA 16 0 L019700300043 ENDSUBENT 42 0 L019700399999 SUBENT L0197004 20141118 L025L019700400001 BIB 5 21 L019700400002 REACTION 1(12-MG-26(G,0),,EN) L019700400003 2(12-MG-26(G,N),,WID/STR,,RG) L019700400004 SAMPLE (12-MG-24,ENR=0.0041) L019700400005 (12-MG-25,ENR=0.0018) L019700400006 (12-MG-26,ENR=0.9941) L019700400007 The primary sample consisted of 16.4185 g of magnesium-L019700400008 oxide (MgO) powder, enriched in 26Mg. The sample was L019700400009 contained in polycarbonate cylindrical container L019700400010 with 0.16-cm-thick walls and end caps,with an inner L019700400011 cavity 2.30 cm in diameter and 3.10 cm in length. L019700400012 DETECTOR (SCIN) The neutron detection setup consisted of nine L019700400013 liquid scintillation detectors. The detectors had an L019700400014 active scintillation volume of 2in diameter by 2in L019700400015 length and the scintillation material was BC501A. L019700400016 STATUS (TABLE) Data taken from tab. 1 of the reference L019700400017 ERR-ANALYS1(DATA-ERR) Uncertainty in the energies is dominated L019700400018 by the 2" thickness of the scintillation detectors L019700400019 2(ERR-S) Statistical uncertainty L019700400020 (ERR-SYS) Systematic uncertainty, chiefly the result ofL019700400021 the uncertainty in the beam flux and the detector L019700400022 efficiencies L019700400023 ENDBIB 21 0 L019700400024 NOCOMMON 0 0 L019700400025 DATA 5 5 L019700400026 DATA 1DATA-ERR 1DATA 2ERR-S 2ERR-SYS 2 L019700400027 MEV MEV EV EV EV L019700400028 11.150 0.008 1.7 0.1 0.5 L019700400029 11.289 0.025 1.01 0.03 0.20 L019700400030 11.329 0.031 1.59 0.05 0.31 L019700400031 11.506 0.055 5.7 0.15 1.1 L019700400032 11.749 0.087 38.9 1.2 7.6 L019700400033 ENDDATA 7 0 L019700400034 ENDSUBENT 33 0 L019700499999 ENDENTRY 4 0 L019799999999