ENTRY M0759 20100212 M052M075900000001 SUBENT M0759001 20100212 M052M075900100001 BIB 14 31 M075900100002 TITLE Delayed neutron yields and spectra from photofission M075900100003 of actinides: data and calculations with M075900100004 Bremsstrahlung photons below 20 MeV. M075900100005 AUTHOR (D.Dore,J.-C.David,V.Macary,J.-M.Laborie,X.Ledoux, M075900100006 D.Ridikas,A.Vanlauwe) M075900100007 INSTITUTE (2FR SAC,2FR BRC) Bruyeres-le-Chatel. M075900100008 REFERENCE (C,2007NICE,2,1269,2007) M075900100009 #doi:10.1051/ndata:07482 M075900100010 FACILITY (LINAC,2FR BRC) Electron accelerator of CEA/DIF/DPTA M075900100011 INC-SOURCE (BRST) Electron beam impinged on thick Ta target, the M075900100012 Al cylinder stops the residual electrons. M075900100013 SAMPLE Targets of 238U (400 g) and 235U(11 g). M075900100014 PART-DET (DN) M075900100015 METHOD (EXTB,SITA) M075900100016 DETECTOR (HE3SP) Twelve 3He gas counters inside CH2 ring. M075900100017 ANALYSIS (DECAY) The number of delayed neutrons (DN) was M075900100018 obtained as the integral of DN decay spectrum (time M075900100019 dependent yield measured) corrected for background, M075900100020 detector efficiency and contribution of (n,fiss) M075900100021 reactions. The number of fissions (induced by M075900100022 photons and neutrons) was evaluated using the MCNPX M075900100023 transport code. M075900100024 ERR-ANALYS (ERR-S) Statistical errors only: the systematic M075900100025 uncertainty due to the electron charge measurements M075900100026 is difficult to evaluate and has not yet taken into M075900100027 account. M075900100028 STATUS (CURVE) Data from the Figs. 3 and 4, VVV M075900100029 (SPSDD,M0782003) Subent substitution. M075900100030 HISTORY (20081112C) M075900100031 (20100212A) Subent 003 deleted because substitution M075900100032 by M0782003. M075900100033 ENDBIB 31 0 M075900100034 NOCOMMON 0 0 M075900100035 ENDSUBENT 34 0 M075900199999 SUBENT M0759002 20100212 M052M075900200001 BIB 1 3 M075900200002 REACTION (92-U-238(G,F),DL,NU,,BRA) M075900200003 Absolute yield as a ratio of the emitted DN over M075900200004 number of fissions. M075900200005 ENDBIB 3 0 M075900200006 NOCOMMON 0 0 M075900200007 DATA 3 9 M075900200008 EN-MAX DATA ERR-S M075900200009 MEV PRT/FIS PRT/FIS M075900200010 12. .0354 .0021 M075900200011 13. .0357 .0022 M075900200012 14. .0276 .0017 M075900200013 15. .0265 .0018 M075900200014 15.5 .0251 .0015 M075900200015 16.1 .0241 .0015 M075900200016 17.1 .0242 .0015 M075900200017 17.5 .0234 .0015 M075900200018 18.1 .023 .0014 M075900200019 ENDDATA 11 0 M075900200020 ENDSUBENT 19 0 M075900299999 SUBENT M0759003 20100212 M052M075900300001 BIB 3 4 M075900300002 REACTION (92-U-235(G,F),DL,NU,,BRA) M075900300003 STATUS (SPSDD,M0782003) M075900300004 HISTORY (20100212A) Subent 003 deleted because substitution M075900300005 by M0782003. M075900300006 ENDBIB 4 0 M075900300007 NOCOMMON 0 0 M075900300008 NODATA 0 0 M075900300009 ENDSUBENT 8 0 M075900399999 ENDENTRY 3 0 M075999999999