ENTRY 23335 20170410 22592333500000001 SUBENT 23335001 20170410 22592333500100001 BIB 13 70 2333500100002 TITLE Backward-forward reaction asymmetry of neutron elastic 2333500100003 scattering on deuterium 2333500100004 AUTHOR (E.Pirovano,R.Beyer,A.R.Junghans,N.Nankov,R.Nolte, 2333500100005 M.Nyman,A.J.M.Plompen) 2333500100006 REFERENCE (J,PR/C,95,024601,2017) 2333500100007 #doi:10.1103/PhysRevC.95.024601 2333500100008 INSTITUTE (2ZZZGEL) E.Pirovano,N.Nankov,M.Nyman,A.J.M.Plompen 2333500100009 (2GERZFK) R.Beyer,A.R.Junghans 2333500100010 (2GERPTB) R.Nolte 2333500100011 REL-REF (N,,N.Nankov+,J,NDS,119,98,2014) 2333500100012 Similar measurement but with pure statistics. 2333500100013 (I,,F.Gabriel+,J,NIM/B,161-163,1143,2000) 2333500100014 (I,,J.Teichert+,J,NIM/A,507,354,2003) 2333500100015 (I,,R.Beyer+,J,NIM/A,723,151,2013) 2333500100016 Three refs. for facility details. 2333500100017 The data acquisition system details: 2333500100018 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 2333500100019 Darmstadt, "Multi-Branch-System 5.0", 2333500100020 https://www.gsi.de/en/work/research/electronics/ 2333500100021 data processing/data acquisition/mbs.htm (2006). 2333500100022 FACILITY (LINAC,2GERZFK) Neutron time-of-flight facility nELBE.2333500100023 The electrons are produced in pulses of 5ps width(FWHM)2333500100024 , kinetic energy up to 40 MeV; the repetition rate 2333500100025 101 kHz . 2333500100026 The data acquisition (DAQ) system was based on 2333500100027 commercially available VME modules read out by a 2333500100028 CES RIO4 VME Power-PC running the real time operating 2333500100029 system LynxOS and the DAQ software MBS developed by 2333500100030 GSI Darmstadt. 2333500100031 INC-SOURCE (BRST,PHOTO) Neutrons are produced by an electron beam 2333500100032 impacting on a liquid lead target, via (gamma,n) 2333500100033 reactions induced by bremsstrahlung. 2333500100034 INC-SPECT The neutron beam is defined by a collimator: 2333500100035 a steel tube with lead and polyethylene inserts, 2333500100036 installed at 95deg with respect to the primary 2333500100037 electron beam, with 3 cm of lead as absorber. 2333500100038 DETECTOR (GLASD) Eight cylindrical Li glass detectors enriched 2333500100039 in Li-6 from Scionix(model 51 B 12,7/2M-O-E1-LiG-Neg-X)2333500100040 were mounted on an Al frame, in two groups of four, 2333500100041 at 165deg and 15deg to the beam axis; 2333500100042 diameter -50.8 mm, 2333500100043 thickness 12.7 mm, 2333500100044 Li-6 content - 7.4% weight, 2333500100045 density - 2.5 - 2.7 g/cm3. 2333500100046 Composition (% in weight) 2333500100047 SiO(2) 56.% 2333500100048 MgO 4.% 2333500100049 Al(2)O(3) 18.% 2333500100050 Ce(2)O(3) 4.% 2333500100051 Li-6(2)O 18.% 2333500100052 See Table III and Fig.3 of J,PR/C,95,024601,2017 for 2333500100053 details. 2333500100054 SAMPLE -Deuterated polyethylene disk, 99.999% enrichment in 2333500100055 deuterium . 2333500100056 -Graphite disk was used to assess the contribution of 2333500100057 carbon in the CD2 measurement. 2333500100058 - Empty sample. 2333500100059 Sample was placed at 6.100+-0.001 m from the neutron 2333500100060 source. 2333500100061 Samples: 2333500100062 CD2 graphite 2333500100063 Diameter,cm 7.00+-0.02 11.0+-0.1 2333500100064 Thickness,cm 0.30+-0.02 0.93+-0.02 2333500100065 Areal density,g/cm2 0.3236+-0.0009 1.52+-0.01 2333500100066 METHOD (TOF) 2333500100067 CORRECTION For the background and the multiple scattering in the 2333500100068 target. 2333500100069 Dead time correction. 2333500100070 Carbon contribution was subtracted . 2333500100071 HISTORY (20170410C) M.M. 2333500100072 ENDBIB 70 0 2333500100073 NOCOMMON 0 0 2333500100074 ENDSUBENT 73 0 2333500199999 SUBENT 23335002 20170410 22592333500200001 BIB 4 11 2333500200002 REACTION ((1-H-2(N,EL)1-H-2,,DA)//(1-H-2(N,EL)1-H-2,,DA)) 2333500200003 REL-REF (A,,J.Golak+,J,EPJ/A,50,177,2014) 2333500200004 ANALYSIS Ratio was defined as 2333500200005 (N165*EPS15)/(N15*EPS165) , 2333500200006 where N15, N165- is number of detected events due to 2333500200007 single scattering on deuterium at 15 and 165 deg 2333500200008 angles, respectively; 2333500200009 EPS15, EPS165 -detection efficiency at 15 and 165 deg,2333500200010 respectively. 2333500200011 STATUS (UNOBT) Request for the data was sent 12.04.2017 2333500200012 Data are on Fig.15 of J,PR/C,95,024601,2017 2333500200013 ENDBIB 11 0 2333500200014 COMMON 2 3 2333500200015 ANG-NM ANG-DN 2333500200016 ADEG ADEG 2333500200017 165. 15. 2333500200018 ENDCOMMON 3 0 2333500200019 NODATA 0 0 2333500200020 ENDSUBENT 19 0 2333500299999 ENDENTRY 2 0 2333599999999