ENTRY 14215 20210920 14871421500000001 SUBENT 14215001 20210920 14871421500100001 BIB 10 35 1421500100002 TITLE Measurement of the average energy and multiplicity 1421500100003 of prompt-fission neutrons from 238U(n,f) and 1421500100004 237Np(n,f) from 1 to 200MeV 1421500100005 AUTHOR (J.Taieb,T.Granier,T.Ethvignot,M.Devlin,R.C.Haight, 1421500100006 R.O.Nelson, J.M.O'Donnell,D.Rochman) 1421500100007 INSTITUTE (1USALAS,2FR BRC,1USABNL) 1421500100008 REFERENCE (C,2007NICE,1,429,2007) 1421500100009 FACILITY (LINAC,1USALAS)Experiment was performed at the LANSCE 1421500100010 using the fast neutrons produced by the WNR spallation 1421500100011 source. The 800 MeV proton beam impinges on a 1421500100012 tungsten target producing high-energy neutrons.The 1421500100013 proton-beam structure consists of 300 ps pulses 1421500100014 spaced every 1.8mu-s. 1421500100015 DETECTOR (IOCH)10 cm long ionization chamber containing 94 1421500100016 plates where 380 mg of pure actinide (resp. 238U or 1421500100017 237Np) were deposited was used for detection of 1421500100018 fission fragments and provided a time signal for 1421500100019 neutron energy measurement by time of flight method. 1421500100020 (SCIN) 20 scintillation detectors located 1 m from the 1421500100021 fission chamber covering angles from 45 to 135 degrees 1421500100022 were used. The setup is known as FIGARO and was located1421500100023 at a distance of 22 m from the spallation target. 1421500100024 METHOD (TOF,PSD)Kinetic energy of the incoming neutrons was 1421500100025 measured by time-of-flight defined by linac pulse 1421500100026 timing and ionization chamber time signal. The energy 1421500100027 of fission neutrons was determined by measurement of 1421500100028 time between fission chamber event and timing signal 1421500100029 from scintillation detector. Pulse-shape analysis 1421500100030 was used to separate gammas from neutrons. 1421500100031 INC-SOURCE (SPALL) 1421500100032 ERR-ANALYS (DATA-ERR) No information given 1421500100033 HISTORY (20090125C) Compiled by S.H. 1421500100034 (20101122A) OS. REACTION in sub.2,4 corrected 1421500100035 (20110515U) OS. BIB update 1421500100036 (20210828A) OS. Correction in sub.4 1421500100037 ENDBIB 35 0 1421500100038 NOCOMMON 0 0 1421500100039 ENDSUBENT 38 0 1421500199999 SUBENT 14215002 20110124 13701421500200001 BIB 4 6 1421500200002 REACTION (92-U-238(N,F)0-NN-1,PR,KE) 1421500200003 SAMPLE 380 mg of pure 238U deposited on 94 plates 1421500200004 of the the ionisation chamber 1421500200005 STATUS (CURVE,PRELM) data taken from fig. 1 of 1421500200006 the reference, data are preliminary 1421500200007 HISTORY (20101122A) OS. REACTION SF6 changed from AKE to KE 1421500200008 ENDBIB 6 0 1421500200009 NOCOMMON 0 0 1421500200010 DATA 3 33 1421500200011 EN DATA DATA-ERR 1421500200012 MEV MEV MEV 1421500200013 1.71 2.02 0.03 1421500200014 2.47 1.99 0.03 1421500200015 3.54 1.94 0.03 1421500200016 4.49 1.97 0.03 1421500200017 5.52 2.01 0.03 1421500200018 6.47 1.97 0.03 1421500200019 7.53 1.81 0.03 1421500200020 8.49 1.89 0.03 1421500200021 9.55 1.93 0.03 1421500200022 11.00 1.98 0.03 1421500200023 13.00 1.98 0.03 1421500200024 15.00 1.94 0.03 1421500200025 17.00 1.96 0.03 1421500200026 19.00 2.00 0.03 1421500200027 21.50 1.96 0.03 1421500200028 24.50 2.04 0.03 1421500200029 27.75 2.02 0.03 1421500200030 30.00 2.01 0.03 1421500200031 32.50 2.05 0.03 1421500200032 37.50 2.04 0.03 1421500200033 42.50 2.08 0.03 1421500200034 47.50 2.10 0.03 1421500200035 52.50 2.10 0.03 1421500200036 57.50 2.13 0.03 1421500200037 65.00 2.15 0.03 1421500200038 75.00 2.17 0.03 1421500200039 85.00 2.20 0.03 1421500200040 95.05 2.21 0.03 1421500200041 110.00 2.24 0.03 1421500200042 130.00 2.25 0.03 1421500200043 150.00 2.30 0.04 1421500200044 170.05 2.29 0.03 1421500200045 190.11 2.29 0.04 1421500200046 ENDDATA 35 0 1421500200047 ENDSUBENT 46 0 1421500299999 SUBENT 14215003 20090505 13531421500300001 BIB 3 5 1421500300002 REACTION (92-U-238(N,F),PR,NU) 1421500300003 SAMPLE 380 mg of pure 238U deposited on 94 plates 1421500300004 of the the ionisation chamber 1421500300005 STATUS (CURVE,PRELM) data taken from fig. 3 of 1421500300006 the reference, data are preliminary 1421500300007 ENDBIB 5 0 1421500300008 NOCOMMON 0 0 1421500300009 DATA 3 33 1421500300010 EN DATA DATA-ERR 1421500300011 MEV PRT/FIS PRT/FIS 1421500300012 1.76 2.60 0.08 1421500300013 2.52 2.78 0.08 1421500300014 3.54 2.91 0.08 1421500300015 4.50 3.14 0.10 1421500300016 5.55 3.17 0.10 1421500300017 6.54 3.08 0.09 1421500300018 7.56 3.16 0.09 1421500300019 8.55 3.42 0.10 1421500300020 9.57 3.49 0.10 1421500300021 11.03 3.68 0.11 1421500300022 13.04 3.92 0.12 1421500300023 15.05 4.15 0.13 1421500300024 17.06 4.33 0.13 1421500300025 19.05 4.62 0.14 1421500300026 21.73 4.72 0.14 1421500300027 24.79 5.19 0.18 1421500300028 27.65 5.63 0.19 1421500300029 30.71 5.95 0.21 1421500300030 33.77 6.22 0.16 1421500300031 37.85 6.58 0.17 1421500300032 42.75 7.07 0.21 1421500300033 47.86 7.43 0.23 1421500300034 52.76 7.88 0.25 1421500300035 57.66 8.21 0.23 1421500300036 65.21 8.59 0.30 1421500300037 75.22 9.08 0.25 1421500300038 85.43 9.57 0.32 1421500300039 95.23 10.01 0.28 1421500300040 110.15 10.48 0.34 1421500300041 130.16 11.21 0.32 1421500300042 150.18 11.77 0.36 1421500300043 170.20 12.27 0.38 1421500300044 190.01 12.78 0.43 1421500300045 ENDDATA 35 0 1421500300046 ENDSUBENT 45 0 1421500399999 SUBENT 14215004 20210920 14871421500400001 BIB 4 7 1421500400002 REACTION (93-NP-237(N,F)0-NN-1,PR,KE) 1421500400003 SAMPLE 380 mg of pure 237NP deposited on 94 plates 1421500400004 of the ionization chamber 1421500400005 STATUS (CURVE,PRELM) data taken from fig. 4 of 1421500400006 the reference, data are preliminary 1421500400007 HISTORY (20101122A) OS. REACTION SF6 changed from AKE to KE 1421500400008 (20210828A) REACTION code modified 1421500400009 ENDBIB 7 0 1421500400010 NOCOMMON 0 0 1421500400011 DATA 3 33 1421500400012 EN DATA DATA-ERR 1421500400013 MEV MEV MEV 1421500400014 1.28 1.98 0.05 1421500400015 1.76 2.02 0.05 1421500400016 2.51 1.98 0.05 1421500400017 3.52 1.99 0.05 1421500400018 4.52 1.98 0.05 1421500400019 5.49 2.01 0.05 1421500400020 6.51 2.00 0.05 1421500400021 7.50 1.88 0.05 1421500400022 8.52 1.95 0.05 1421500400023 9.51 2.00 0.05 1421500400024 11.01 2.01 0.05 1421500400025 13.02 1.93 0.05 1421500400026 15.03 2.06 0.05 1421500400027 17.00 2.02 0.05 1421500400028 19.33 1.95 0.05 1421500400029 21.74 2.01 0.05 1421500400030 24.76 2.02 0.05 1421500400031 27.51 2.17 0.05 1421500400032 30.64 2.09 0.05 1421500400033 33.66 2.14 0.05 1421500400034 42.52 2.14 0.05 1421500400035 47.50 2.18 0.05 1421500400036 52.53 2.13 0.05 1421500400037 57.46 2.15 0.05 1421500400038 65.01 2.15 0.05 1421500400039 75.07 2.16 0.05 1421500400040 85.08 2.19 0.05 1421500400041 95.14 2.18 0.06 1421500400042 110.08 2.17 0.05 1421500400043 130.10 2.19 0.05 1421500400044 150.03 2.22 0.05 1421500400045 170.10 2.23 0.06 1421500400046 190.07 2.22 0.06 1421500400047 ENDDATA 35 0 1421500400048 ENDSUBENT 47 0 1421500499999 SUBENT 14215005 20090505 13531421500500001 BIB 3 5 1421500500002 REACTION (93-NP-237(N,F),PR,NU) 1421500500003 SAMPLE 380 mg of pure 237NP deposited on 94 plates 1421500500004 of the the ionisation chamber 1421500500005 STATUS (CURVE,PRELM) data taken from fig. 5 of 1421500500006 the reference, data are preliminary 1421500500007 ENDBIB 5 0 1421500500008 NOCOMMON 0 0 1421500500009 DATA 3 33 1421500500010 EN DATA DATA-ERR 1421500500011 MEV PRT/FIS PRT/FIS 1421500500012 1.77 2.81 0.08 1421500500013 2.50 3.14 0.09 1421500500014 3.50 3.28 0.09 1421500500015 4.50 3.42 0.10 1421500500016 5.50 3.61 0.11 1421500500017 6.50 3.68 0.11 1421500500018 7.50 3.62 0.12 1421500500019 8.50 3.82 0.12 1421500500020 9.50 4.00 0.13 1421500500021 11.00 4.58 0.13 1421500500022 13.00 4.72 0.13 1421500500023 15.00 4.97 0.16 1421500500024 17.00 5.22 0.17 1421500500025 19.00 4.98 0.16 1421500500026 21.69 5.42 0.18 1421500500027 24.56 5.54 0.16 1421500500028 27.50 5.76 0.18 1421500500029 30.63 6.21 0.21 1421500500030 33.67 6.38 0.18 1421500500031 37.72 6.72 0.20 1421500500032 42.79 6.96 0.18 1421500500033 47.68 7.32 0.18 1421500500034 52.75 7.45 0.21 1421500500035 57.81 7.99 0.24 1421500500036 65.00 8.33 0.24 1421500500037 75.00 8.65 0.30 1421500500038 85.00 9.20 0.28 1421500500039 95.00 9.23 0.31 1421500500040 110.00 9.77 0.28 1421500500041 130.00 10.19 0.28 1421500500042 150.00 11.06 0.32 1421500500043 170.00 11.28 0.32 1421500500044 190.00 11.56 0.32 1421500500045 ENDDATA 35 0 1421500500046 ENDSUBENT 45 0 1421500599999 ENDENTRY 5 0 1421599999999