ENTRY 41322 20191112 41844132200000001 SUBENT 41322001 20191112 41844132200100001 BIB 11 61 4132200100002 INSTITUTE (4RUSFEI) 4132200100003 REFERENCE (J,AE,85,51,1998) Iss.1. Main reference. Data and 4132200100004 correlation matrix of delayed neutron parameters . 4132200100005 (J,AE/T,85,479,1998) Eng.transl. of J,AE,85,51,1998 4132200100006 #doi:10.1007/BF02358784 4132200100007 (C,95OBNIN,,295,1995) Preliminary data 4132200100008 AUTHOR (V.M.Piksaikin,Yu.F.Balakshev,S.G.Isaev,L.E.Kazakov, 4132200100009 G.G.Korolev,V.I.Mil'shin) 4132200100010 TITLE Measurement of the energy dependence of the parameters4132200100011 of delayed neutrons accompanying fission of Np-237 by 4132200100012 fast neutrons . 4132200100013 FACILITY (VDG) Electrostatic cascade generator KG-2.5 4132200100014 DETECTOR (D4PI) Boron counter SNM-11 as assemblage of 4132200100015 30 counters distributed in polyethylene moderator - 4132200100016 for neutron detection. Energy dependence of detector 4132200100017 efficiency is calculated by Monte-Carlo method . 4132200100018 (SOLST) Semiconductor surface-barrier detector for 4132200100019 Cf-252 fission events detection . 4132200100020 (FISCH) Fission chamber for Np-237 and U-235 fission 4132200100021 events detection . 4132200100022 (PROPC) He-3 counter for neutron flux monitoring . 4132200100023 INC-SOURCE (P-T,D-D) 4132200100024 MONITOR (98-CF-252(0,F),PR,NU) 4132200100025 (92-U-235(N,F),DL,NU) 4132200100026 ERR-ANALYS (ERR-S) Error due to fission counting statistics of 4132200100027 U-235 and Np-237 4132200100028 (ERR-1) Error due to fission chamber deposit mass of 4132200100029 U-235 and Np-237 4132200100030 (ERR-2) Error due to extrapolation to zero bias for 4132200100031 U-235 and Np-237 4132200100032 (ERR-3) Error due to sample mass of U-235 4132200100033 (ERR-4) error due to sample mass of Np-237 4132200100034 (ERR-5) Error due to delayed neutron counting 4132200100035 statistical error for U and Np 4132200100036 (ERR-6) Error due to background (two chamber geometry 4132200100037 both for U-235 and Np-237) 4132200100038 (ERR-7) Statistical error caused by delayed neutrons 4132200100039 counts to fission fragments counts ratio 4132200100040 (ERR-8) Error due to delayed neutron from impurities 4132200100041 of U-235. 4132200100042 (ERR-T) Total error. 4132200100043 Error structure is taken from C,95OBNIN. 4132200100044 REL-REF (N,41291001,V.M.Piksaykin+,C,97TRIEST,1,485,199705) 4132200100045 Final data for Np-237 at 1.154 MeV in Subent 41291005.4132200100046 (N,41291001,V.M.Piksaykin+,J,YK,,(1-2),18,1997) 4132200100047 Prelim. data for n-energy 1.154 MeV 4132200100048 (N,41300001,V.M.Piksaykin+,J,YK,,(1),17,1998) 4132200100049 Np-237 DN yields from precursors for energies 4132200100050 En=0.586, 1.008, 3.745, 4.196, 4.719 MeV . 4132200100051 HISTORY (19990125C) + + Compiled at CJD 4132200100052 (20090817A) M.M. Misprint in Title was corrected. 4132200100053 Dates were corrected for 4-digits year. 4132200100054 Free text was corrected to be human-readable. 4132200100055 (20110630A) M.M. J,AE/T,85,(1),1998 was added. 4132200100056 Correlation matrix was added in Subent 003. 4132200100057 (20150513A) V.Z. COVARIANCE lines were corrected 4132200100058 in Subent 003 according to new format . 4132200100059 (20150627U) M.M. Cosmetic correction. 4132200100060 (20150810A) "COREL,41291001", "COREL,41300001" were 4132200100061 deleted according to comment of N.Otsuka(NDS,IAEA). 4132200100062 (20191112U) Ref. YK was corrected and moved in REL-REF 4132200100063 ENDBIB 61 0 4132200100064 COMMON 8 6 4132200100065 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 4132200100066 ERR-7 ERR-8 4132200100067 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 4132200100068 PER-CENT PER-CENT 4132200100069 0.7 0.6 1. 0.05 0.01 0.1 4132200100070 0.6 0.06 4132200100071 ENDCOMMON 6 0 4132200100072 ENDSUBENT 71 0 4132200199999 SUBENT 41322002 20110701 41534132200200001 BIB 3 7 4132200200002 REACTION ((93-NP-237(N,F),DL/GRP,NU)/ 4132200200003 (93-NP-237(N,F),DL,NU)) 4132200200004 SAMPLE Np-O2 oxide powder, density 7 gram/cm**3, packed in 4132200200005 stainless-steel capsule placed in titanium container. 4132200200006 Sample weight is 2.2810 gram 4132200200007 STATUS (TABLE) Table 3 and Table 1 (first two data lines) 4132200200008 of J,AE,85,(1),51,1998. 4132200200009 ENDBIB 7 0 4132200200010 COMMON 1 3 4132200200011 ERR-S 4132200200012 PER-CENT 4132200200013 1.0 4132200200014 ENDCOMMON 3 0 4132200200015 DATA 6 42 4132200200016 EN EN-ERR HL HL-ERR DATA ERR-T 4132200200017 MEV MEV SEC SEC NO-DIM NO-DIM 4132200200018 0.340 0.070 54.43 0.54 0.032 0.001 4132200200019 0.340 0.070 22.10 0.27 0.309 0.009 4132200200020 0.340 0.070 5.81 0.20 0.198 0.009 4132200200021 0.340 0.070 2.32 0.06 0.351 0.014 4132200200022 0.340 0.070 0.428 0.020 0.095 0.004 4132200200023 0.340 0.070 0.196 0.010 0.016 0.001 4132200200024 0.586 0.078 56.37 0.56 0.032 0.001 4132200200025 0.586 0.078 21.98 0.26 0.284 0.008 4132200200026 0.586 0.078 5.09 0.17 0.193 0.009 4132200200027 0.586 0.078 2.26 0.06 0.381 0.015 4132200200028 0.586 0.078 0.433 0.020 0.095 0.004 4132200200029 0.586 0.078 0.197 0.010 0.016 0.001 4132200200030 1.008 0.099 55.32 0.94 0.031 0.001 4132200200031 1.008 0.099 22.71 0.24 0.246 0.007 4132200200032 1.008 0.099 6.53 0.20 0.167 0.007 4132200200033 1.008 0.099 2.37 0.06 0.397 0.009 4132200200034 1.008 0.099 0.483 0.027 0.144 0.007 4132200200035 1.008 0.099 0.202 0.010 0.016 0.001 4132200200036 3.231 0.152 55.18 0.55 0.040 0.001 4132200200037 3.231 0.152 21.90 0.26 0.247 0.007 4132200200038 3.231 0.152 4.71 0.16 0.184 0.008 4132200200039 3.231 0.152 2.79 0.07 0.356 0.014 4132200200040 3.231 0.152 0.579 0.027 0.142 0.007 4132200200041 3.231 0.152 0.211 0.011 0.031 0.002 4132200200042 3.745 0.144 54.66 0.55 0.040 0.001 4132200200043 3.745 0.144 21.78 0.26 0.228 0.006 4132200200044 3.745 0.144 5.74 0.20 0.191 0.009 4132200200045 3.745 0.144 2.26 0.06 0.395 0.016 4132200200046 3.745 0.144 0.719 0.034 0.116 0.005 4132200200047 3.745 0.144 0.199 0.010 0.030 0.002 4132200200048 4.196 0.169 54.68 0.55 0.045 0.001 4132200200049 4.196 0.169 20.95 0.25 0.234 0.007 4132200200050 4.196 0.169 4.96 0.17 0.222 0.010 4132200200051 4.196 0.169 2.24 0.06 0.336 0.013 4132200200052 4.196 0.169 0.845 0.040 0.131 0.006 4132200200053 4.196 0.169 0.203 0.010 0.032 0.002 4132200200054 4.719 0.205 53.23 0.53 0.046 0.001 4132200200055 4.719 0.205 20.97 0.25 0.220 0.006 4132200200056 4.719 0.205 5.18 0.18 0.199 0.009 4132200200057 4.719 0.205 2.38 0.06 0.357 0.014 4132200200058 4.719 0.205 0.707 0.033 0.145 0.007 4132200200059 4.719 0.205 0.206 0.010 0.033 0.002 4132200200060 ENDDATA 44 0 4132200200061 ENDSUBENT 60 0 4132200299999 SUBENT 41322003 20150627 41694132200300001 BIB 5 44 4132200300002 REACTION ((93-NP-237(N,F),DL/GRP,NU)/ 4132200300003 (93-NP-237(N,F),DL,NU)) 4132200300004 ANALYSIS Data obtained by the summation method 4132200300005 SAMPLE Np-O2 oxide powder, density 7 gram/cm3, packed in 4132200300006 stainless-steel capsule placed in titanium container. 4132200300007 Sample weight is 2.2810 gram. 4132200300008 COVARIANCE Correlation matrix: 4132200300009 A- intensity of precursors producing, 4132200300010 b- neutron background intensity, 4132200300011 a -relative yield, 4132200300012 T - half-life. 4132200300013 (XY,14,N,Correlated Parameters) 4132200300014 N Parameter 4132200300015 1 A 4132200300016 2 b 4132200300017 3 a1 4132200300018 4 T1 4132200300019 5 a2 4132200300020 6 T2 4132200300021 7 a3 4132200300022 8 T3 4132200300023 9 a4 4132200300024 10 T4 4132200300025 11 a5 4132200300026 12 T5 4132200300027 13 a6 4132200300028 14 T6 4132200300029 (Z,105,NO-DIM,COR) 4132200300030 1.00 4132200300031 0.01 1. 4132200300032 0. 0. 1. 4132200300033 -.32 -.10 0. 1. 4132200300034 -.35 -.04 0. .75 1. 4132200300035 -.26 .03 0. .06 -.04 1. 4132200300036 -.09 0. 0. .26 .23 .39 1. 4132200300037 -.08 .01 0. .01 -.28 .56 -.09 1. 4132200300038 -.01 -.01 0. .50 .50 .43 -.05 .40 1. 4132200300039 -.52 0. 0. .13 .17 .15 -.33 -.06 .04 1. 4132200300040 .33 0. 0. .09 .09 .08 .02 .05 -.06 .16 1. 4132200300041 -.28 0. 0. .06 .06 .06 .01 .06 -.07 .07 -.01 1. 4132200300042 .11 0. 0. .01 .01 .01 0. 0. 0. .01 -.01 0. 1. 4132200300043 -.03 0. 0. .01 .01 .01 0. 0. 0. .01 -.01 0. 0. 1.4132200300044 STATUS (TABLE) Table 1 of J,AE,85,(1),51,1998 ; 4132200300045 Table 2 - correlation matrix. 4132200300046 ENDBIB 44 0 4132200300047 COMMON 3 3 4132200300048 EN EN-ERR ERR-S 4132200300049 MEV MEV PER-CENT 4132200300050 1.008 0.099 1.0 4132200300051 ENDCOMMON 3 0 4132200300052 DATA 3 6 4132200300053 HL DATA ERR-T 4132200300054 SEC NO-DIM NO-DIM 4132200300055 55.71 0.035 0.009 4132200300056 20.25 0.247 0.057 4132200300057 5.20 0.155 0.050 4132200300058 2.24 0.382 0.080 4132200300059 0.546 0.155 0.040 4132200300060 0.193 0.027 0.012 4132200300061 ENDDATA 8 0 4132200300062 ENDSUBENT 61 0 4132200399999 SUBENT 41322004 20110701 41534132200400001 BIB 3 7 4132200400002 REACTION ((93-NP-237(N,F),DL/GRP,NU)// 4132200400003 (93-NP-237(N,F),DL/GRP,NU)) .Measurements 4132200400004 relative to 55 sec group yield 4132200400005 SAMPLE .Np-O2 Oxide powder, density 8 gram/cm**3, 4132200400006 sample weight is 2. gram 4132200400007 STATUS (PRELM) Preliminary data 4132200400008 (TABLE) Table of C,95OBNIN,295,1995 4132200400009 ENDBIB 7 0 4132200400010 COMMON 2 3 4132200400011 EN HL-DN 4132200400012 MEV SEC 4132200400013 1.2 55.69 4132200400014 ENDCOMMON 3 0 4132200400015 DATA 4 6 4132200400016 HL-NM HL-ERR DATA ERR-S 4132200400017 SEC SEC NO-DIM NO-DIM 4132200400018 55.69 0.69 1. 4132200400019 22.21 0.21 8.18 0.31 4132200400020 6.15 0.23 5.58 0.42 4132200400021 2.50 0.08 12.28 0.78 4132200400022 0.77 0.08 3.03 0.62 4132200400023 0.27 0.03 0.49 0.16 4132200400024 ENDDATA 8 0 4132200400025 ENDSUBENT 24 0 4132200499999 ENDENTRY 4 0 4132299999999