ENTRY 41380 20241022 42194138000000001 SUBENT 41380001 20241022 42194138000100001 BIB 12 56 4138000100002 TITLE Study of neutron cross-sections and 4138000100003 alpha=SIGgamma/SIGf value for U-235 in the 4138000100004 1 meV - 2 eV energy range 4138000100005 AUTHOR (Yu.V.Grigoriev, V.V.Sinitsa, S.B.Borzakov, G.L.Ilchev,4138000100006 H.Faikov-Stanczyk, Ts.Ts.Panteleev, N.B.Yaneva) 4138000100007 INSTITUTE (4RUSFEI) Grigoriev, Sinitsa 4138000100008 (4ZZZDUB) Borzakov, Ilchev, Faikov-Stanczyk, 4138000100009 Panteleev 4138000100010 (3BULBLA) Yaneva 4138000100011 REFERENCE (R,INDC(CCP)-430,7,2001) 4138000100012 English translation of YK,,(1),3,2000. 4138000100013 (J,YK,,(1),3,2000) Main reference. 4138000100014 ((S,ISINN-8,328,2000)=(S,JINR-E3-2000-192,2000)) 4138000100015 First author S.B.Borzakov. 4138000100016 (T,GRIGORIEV,2005) Dissertation of Grigor'ev Yuriy 4138000100017 Vasil'evich, "Neutron cross section and their integral4138000100018 characteristics in resonance and thermal energy 4138000100019 regions", thesis for Dr. of Phys. and Math.Sciences 4138000100020 submitted to IPPE, Obninsk, 2005. 4138000100021 FACILITY (REAC,4ZZZDUB) Pulse neutron booster IBR-2 of the 4138000100022 Frank Laboratory of Neutron Physics. 4138000100023 INC-SPECT .Mirror neutron guide on 6th neutron channel of the 4138000100024 reactor for measurements with 3 - 70 milli-eV neutron 4138000100025 energy giving neutron flux 3.e+6 n/cm**2/sec 4138000100026 .Neutron beam on 1st neutron channel of the reactor 4138000100027 for measurements with 3 milli-eV - 2 eV neutron energy4138000100028 giving neutron flux 1.e+6 n/cm**2/sec 4138000100029 METHOD (TOF) Flight bases are 27 m and 34 m 4138000100030 DETECTOR (HPGE) Detector volume 80cm**3.Used on 34m flight base.4138000100031 Surrounded by lead and boron carbide with paraffin 4138000100032 placed on 15 cm distance from sample-radiator . 4138000100033 Energy resolution 3 keV. 4138000100034 (GELI) Detector volume 55cm**3.Used on 27m flight base.4138000100035 Without shield placed on 15 cm distance from 4138000100036 sample-radiator. 4138000100037 Energy resolution < 5 keV. 4138000100038 (BF3) Boron counter CHM-13 for neutron spectrum 4138000100039 measurement. 4138000100040 Relative detector efficiency was obtained by NaCl 4138000100041 sample of 102 g weight using gamma yields for Cl-nat 4138000100042 from REL-REF. 4138000100043 REL-REF (R,,A.M.J.Spits+,J,NP/A,264,63,1976) 4138000100044 CORRECTION .To measure recycled neutrons background beryllium 4138000100045 (20 mm), indium(1 mm) and cadmium (2 mm) filters were 4138000100046 used 4138000100047 STATUS (COREL,41368001) ALF at resonances and for different 4138000100048 energy groups ( flight base 122 and 500 m) . 4138000100049 HISTORY (20001005C) + + Compiled at the center - CJD + + 4138000100050 (20001005U) Last checking has been done. 4138000100051 (20090504A) Reference S,ISINN-8 was added. 4138000100052 Free text was corrected to be human-readable. 4138000100053 BIB and COMMON information was added. 4138000100054 (20110424A) M.M. Reference T,GRIGORIEV,2005 was added. 4138000100055 Subent 003 was added. 4138000100056 (20191114U) Ref. YK was corrected. 4138000100057 (20241022U) Status was updated for new rules. 4138000100058 ENDBIB 56 0 4138000100059 NOCOMMON 0 0 4138000100060 ENDSUBENT 59 0 4138000199999 SUBENT 41380002 20241022 42194138000200001 BIB 9 22 4138000200002 REACTION (92-U-235(N,ABS),,ALF) 4138000200003 MONITOR ((MONIT)92-U-235(N,ABS),,ALF) at thermal energy. 4138000200004 MONIT-REF ((MONIT),H.Weigman+,C,91JUELIC,,38,1991) 4138000200005 SAMPLE .Metallic disk samples-radiator with 90% 235U and 4138000200006 10% 238U, 0.25 mm thickness, sample diameter 48 mm, 4138000200007 weight 8 gram . 4138000200008 ANALYSIS (AREA) Value of ALF was calculated as ratio of sum of 4138000200009 areas for radiative capture lines( 642 and triplet 910,4138000200010 913, 915 keV) to the sum of areas for fission lines 4138000200011 (707, 815, 1279 keV). Then was normalized to value for4138000200012 thermal neutrons 0.169. 4138000200013 ERR-ANALYS (DATA-ERR) Total error ( see also MISC-COL ). 4138000200014 MISC-COL (MISC) Max. total error at 95% confidence level ( as 4138000200015 was given in initial compilation, but information 4138000200016 "Max. total error at 95% confidence level" is absent 4138000200017 in the articles; may be this informaion is from an 4138000200018 author, it is not clear). 4138000200019 STATUS (TABLE,,Yu.V.Grigoriev+,R,INDC(CCP)-430,7,2001) Table 14138000200020 Table of J,YK,,(1),3,2000. 4138000200021 Table 1 of S,ISINN-8,328,2000 . 4138000200022 HISTORY (20241022A) Monitors (n,g) and (n,f) C-S were deleted. 4138000200023 DATA-ERR values were corrected 2SIGMA - 1SIGMA error. 4138000200024 ENDBIB 22 0 4138000200025 COMMON 2 3 4138000200026 EN-NRM MONIT 4138000200027 EV NO-DIM 4138000200028 2.53E-02 0.169 4138000200029 ENDCOMMON 3 0 4138000200030 DATA 4 6 4138000200031 EN DATA DATA-ERR MISC 4138000200032 EV NO-DIM NO-DIM NO-DIM 4138000200033 6.0-3 0.171 0.0225 0.045 4138000200034 8.6-3 0.189 0.005 0.010 4138000200035 1.28-2 0.191 0.005 0.010 4138000200036 2.05-2 0.179 0.006 0.012 4138000200037 3.20-2 0.159 0.006 0.012 4138000200038 5.50-2 0.172 0.006 0.012 4138000200039 ENDDATA 8 0 4138000200040 ENDSUBENT 39 0 4138000299999 SUBENT 41380003 20241022 42194138000300001 BIB 6 11 4138000300002 REACTION (92-U-235(N,ABS),,ALF) 4138000300003 MONITOR (92-U-235(N,ABS),,ALF) at thermal energy and 4138000300004 at resonances 0.29, 1.135 eV. 4138000300005 SAMPLE .Metallic disk samples-radiator with 90% 235U and 4138000300006 10% 238U, 0.25 mm thickness, sample diameter 48 mm, 4138000300007 weight 8 gram . 4138000300008 ANALYSIS (AREA) Areas for radiative capture line 642, triplet 4138000300009 910, 913, 915 keV, and fission gamma-lines 707, 815, 4138000300010 doublets 1178+1181 and 1222+124, 1279 keV were defined.4138000300011 ERR-ANALYS (DATA-ERR) Not specified. 4138000300012 STATUS (TABLE,,Yu.V.Grigoriev,T,GRIGORIEV,2005) Table 52 4138000300013 ENDBIB 11 0 4138000300014 NOCOMMON 0 0 4138000300015 DATA 4 24 4138000300016 EN-MAX EN-MIN DATA DATA-ERR 4138000300017 EV EV NO-DIM NO-DIM 4138000300018 1.62 1.37 0.28 0.07 4138000300019 1.37 1.09 0.21 0.06 4138000300020 0.70 0.46 0.24 0.07 4138000300021 0.46 0.34 0.22 0.06 4138000300022 0.34 0.26 0.18 0.05 4138000300023 0.26 0.20 0.21 0.06 4138000300024 0.20 0.14 0.19 0.05 4138000300025 0.14 0.11 0.14 0.03 4138000300026 0.11 0.09 0.16 0.04 4138000300027 0.09 0.07 0.21 0.06 4138000300028 0.07 0.06 0.17 0.04 4138000300029 0.06 0.05 0.19 0.05 4138000300030 0.05 0.04 0.15 0.04 4138000300031 0.04 0.03 0.10 0.03 4138000300032 0.03 0.02 0.10 0.03 4138000300033 0.0225 0.0158 0.12 0.03 4138000300034 0.0158 0.0117 0.12 0.03 4138000300035 0.0117 0.00836 0.22 0.06 4138000300036 0.00836 0.00625 0.20 0.05 4138000300037 0.00625 0.00388 0.34 0.08 4138000300038 0.00388 0.00263 0.22 0.06 4138000300039 0.00263 0.00191 0.37 0.09 4138000300040 0.00191 0.00144 0.43 0.010 4138000300041 0.00144 0.00101 0.53 0.012 4138000300042 ENDDATA 26 0 4138000300043 ENDSUBENT 42 0 4138000399999 ENDENTRY 3 0 4138099999999