ENTRY 40250 20130213 41594025000000001 SUBENT 40250001 20130213 41594025000100001 BIB 11 37 4025000100002 INSTITUTE (4RUSFEI) 4025000100003 REFERENCE (J,AE,36,(4),282,197404) 4025000100004 (J,SJA,36,355,1974) Engl. translation 4025000100005 #doi:10.1007/BF01229346 4025000100006 AUTHOR (Z.A.Alexandrova, V.I.Bol'shov, V.F.Kuznetsov, 4025000100007 G.N.Smirenkin, M.Z.Tarasko) 4025000100008 TITLE Spectra of the prompt neutrons arising from the 4025000100009 spontaneous fission of Cf-252,Cm-244 and Pu-240 4025000100010 DETECTOR (SCIN) Scintillation detector. Stilbene crystal of 4025000100011 3 cm diameter, 3 cm height. Photomultiplier FEU-13. 4025000100012 Placed at 3 cm from samples. Lead plate of 1 cm 4025000100013 thickness between sample and crystal to suppress 4025000100014 gamma background. 4025000100015 Stability of registration was checked by Tl-208 4025000100016 gamma-source. 4025000100017 Energy scale was calibrated at accelerator using 4025000100018 monoenergetic neutrons from p-t, d-d, d-t reactions. 4025000100019 PART-DET (N) Neutrons 4025000100020 ANALYSIS Influence of distance from source to crystal was 4025000100021 checked in additional measurement by Cf-252 at 2cm 4025000100022 and 75 cm and was found to be negligible. 4025000100023 CORRECTION For coincidence was estimated to be less 1 %. 4025000100024 Influence of lead plate was investigated by Cf-252 4025000100025 spectrum measurement with and without lead plate and 4025000100026 was found to be negligible . 4025000100027 ADD-RES Spectrum temperature was defined for Cf-252, Cm-244, 4025000100028 Pu-240 to be 1.42+-.03, 1.33+-0.03, 1.27+-0.03 MeV, 4025000100029 respectively. 4025000100030 HISTORY (19741218C) Compiled at the Centre 4025000100031 (20100916A) M.M. Subent 002 was corrected. 4025000100032 Subents 003 - 005 were added. 4025000100033 BIB information was added. 4025000100034 Dates were corrected for 4-digits year. 4025000100035 Upper -> lower case correction. 4025000100036 (20130213A) Correction in REACTION: RTE -> RRE 4025000100037 according to the comment of N.Otsuka (NDS,IAEA) . 4025000100038 ERR-ANALYS No information 4025000100039 ENDBIB 37 0 4025000100040 NOCOMMON 0 0 4025000100041 ENDSUBENT 40 0 4025000199999 SUBENT 40250002 20130213 41594025000200001 BIB 5 31 4025000200002 REACTION (96-CM-244(0,F),PR,NU/DE,,RRE/REL) 4025000200003 Spectrum in the form of N(E)/sqrt(E) . 4025000200004 SAMPLE Cm2-O3 oxide of intensity 7.7E+5 alphas/fission, 4025000200005 1.E+4 neutrons/second. 4025000200006 COMMENT Of compiler M.M. Digitized data of Fig.: 4025000200007 E, MeV N(E)/sqrt(E) 4025000200008 2.0370 0.31513E+06 4025000200009 2.4036 0.24511E+06 4025000200010 2.8586 0.16338E+06 4025000200011 3.2598 0.12606E+06 4025000200012 3.7142 87516. 4025000200013 4.1680 64319. 4025000200014 4.6920 43584. 4025000200015 5.2326 31013. 4025000200016 5.8795 18306. 4025000200017 6.3512 12709. 4025000200018 7.0138 8476.3 4025000200019 7.6600 5253.7 4025000200020 8.3253 2835.7 4025000200021 9.0402 1830.9 4025000200022 9.8802 868.01 4025000200023 10.702 442.76 4025000200024 11.489 223.99 4025000200025 12.774 157.15 4025000200026 13.587 39.484 4025000200027 correspond to this reaction on CM-244. 4025000200028 STATUS Source of data is not clear, probably from authors. 4025000200029 HISTORY (20100915A) M.M. Reaction was corrected: 4025000200030 98-CF-252(0,F),PR,DE,N -> 96-CM-244(0,F),PR,NU/DE,, 4025000200031 according to the data given on Fig. of 4025000200032 J,AE,36,(4),282,197404 . 4025000200033 ENDBIB 31 0 4025000200034 NOCOMMON 0 0 4025000200035 DATA 2 29 4025000200036 E DATA 4025000200037 MEV ARB-UNITS 4025000200038 2.0400E+00 3.3800E+05 4025000200039 2.2700E+00 2.7700E+05 4025000200040 2.5100E+00 2.3700E+05 4025000200041 2.7700E+00 1.9700E+05 4025000200042 3.0300E+00 1.6300E+05 4025000200043 3.3100E+00 1.3300E+05 4025000200044 3.6000E+00 1.0700E+05 4025000200045 3.9100E+00 8.7500E+04 4025000200046 4.2200E+00 7.0100E+04 4025000200047 4.5500E+00 5.4500E+04 4025000200048 4.8900E+00 4.2500E+04 4025000200049 5.2500E+00 3.2600E+04 4025000200050 5.6100E+00 2.5200E+04 4025000200051 5.9900E+00 1.9500E+04 4025000200052 6.3800E+00 1.4800E+04 4025000200053 6.7900E+00 1.1100E+04 4025000200054 7.2100E+00 8.1400E+03 4025000200055 7.6300E+00 6.0300E+03 4025000200056 8.0800E+00 4.4500E+03 4025000200057 8.5300E+00 3.2300E+03 4025000200058 9.0000E+00 2.3700E+03 4025000200059 9.4800E+00 1.7000E+03 4025000200060 9.9700E+00 1.1800E+03 4025000200061 1.0500E+01 8.4200E+02 4025000200062 1.1000E+01 5.8200E+02 4025000200063 1.1500E+01 4.2100E+02 4025000200064 1.2100E+01 2.6500E+02 4025000200065 1.2600E+01 2.2200E+02 4025000200066 1.3200E+01 1.0800E+02 4025000200067 ENDDATA 31 0 4025000200068 ENDSUBENT 67 0 4025000299999 SUBENT 40250003 20130213 41594025000300001 BIB 5 8 4025000300002 REACTION (98-CF-252(0,F),PR,NU/DE,,RRE/REL) 4025000300003 Spectrum in the form of N(E)/sqrt(E) . 4025000300004 SAMPLE Cf(NO3)3 of intensity 31 alphas/fission, 4025000300005 5.E+4 neutrons/second. 4025000300006 ERR-ANALYS (E-ERR-DIG) Digitizing error of E. 4025000300007 (ERR-DIG) Digitizing error of DATA. 4025000300008 STATUS (CURVE) Fig. of J,AE,36,(4),282,197404 . 4025000300009 HISTORY (20100915C) M.M. 4025000300010 ENDBIB 8 0 4025000300011 COMMON 2 3 4025000300012 E-ERR-DIG ERR-DIG 4025000300013 MEV PER-CENT 4025000300014 0.021 0.01 4025000300015 ENDCOMMON 3 0 4025000300016 DATA 2 19 4025000300017 E DATA 4025000300018 MEV ARB-UNITS 4025000300019 1.9753 0.67165E+06 4025000300020 2.2899 0.52235E+06 4025000300021 2.7434 0.39019E+06 4025000300022 3.1799 0.28675E+06 4025000300023 3.5988 0.21418E+06 4025000300024 4.0002 0.16259E+06 4025000300025 4.4532 0.12650E+06 4025000300026 4.9944 86422. 4025000300027 5.5355 59043. 4025000300028 6.0417 41669. 4025000300029 6.7406 24202. 4025000300030 7.3160 17084. 4025000300031 8.0674 9528.3 4025000300032 8.8514 6153.5 4025000300033 9.6887 3575.5 4025000300034 10.507 2290.6 4025000300035 11.313 1042.5 4025000300036 12.496 652.46 4025000300037 13.428 204.29 4025000300038 ENDDATA 21 0 4025000300039 ENDSUBENT 38 0 4025000399999 SUBENT 40250004 20130213 41594025000400001 BIB 6 9 4025000400002 REACTION (94-PU-240(0,F),PR,NU/DE,,RRE/REL) 4025000400003 Spectrum in the form of N(E)/sqrt(E) . 4025000400004 SAMPLE Pu-O2 oxide of intensity 1.9E+7 alphas/fission, 4025000400005 8.E+3 neutrons/second. 4025000400006 CORRECTION Correction for O-18(alpha,n) reaction contribution. 4025000400007 ERR-ANALYS (E-ERR-DIG) Digitizing error of E. 4025000400008 (ERR-DIG) Digitizing error of DATA. 4025000400009 STATUS (CURVE) Fig. of J,AE,36,(4),282,197404 . 4025000400010 HISTORY (20100915C) M.M. 4025000400011 ENDBIB 9 0 4025000400012 COMMON 2 3 4025000400013 E-ERR-DIG ERR-DIG 4025000400014 MEV PER-CENT 4025000400015 0.021 0.01 4025000400016 ENDCOMMON 3 0 4025000400017 DATA 2 24 4025000400018 E DATA 4025000400019 MEV ARB-UNITS 4025000400020 2.3639 96120. 4025000400021 2.7456 87985. 4025000400022 3.1816 66799. 4025000400023 3.5171 39394. 4025000400024 3.9383 24801. 4025000400025 4.1493 18971. 4025000400026 4.4471 14281. 4025000400027 4.7969 10578. 4025000400028 5.1284 8499.2 4025000400029 5.4959 6143.9 4025000400030 5.7755 4935.8 4025000400031 6.2123 3511.1 4025000400032 6.4918 2843.7 4025000400033 6.8413 2176.1 4025000400034 7.3478 1486.5 4025000400035 7.7840 1119.5 4025000400036 8.1867 770.75 4025000400037 8.6575 575.77 4025000400038 9.2007 337.00 4025000400039 9.8310 187.90 4025000400040 10.403 173.50 4025000400041 11.502 85.037 4025000400042 12.697 19.399 4025000400043 13.789 16.945 4025000400044 ENDDATA 26 0 4025000400045 ENDSUBENT 44 0 4025000499999 SUBENT 40250005 20130213 41594025000500001 BIB 5 8 4025000500002 REACTION (94-PU-240(0,F),PR,NU/DE,,RRE/REL) 4025000500003 Spectrum in the form of N(E)/sqrt(E) . 4025000500004 SAMPLE Pu-Br4 of intensity 1.9E+7 alphas/fission, 4025000500005 1.E+3 neutrons/second. 4025000500006 ERR-ANALYS (E-ERR-DIG) Digitizing error of E. 4025000500007 (ERR-DIG) Digitizing error of DATA. 4025000500008 STATUS (CURVE) Fig. of J,AE,36,(4),282,197404 . 4025000500009 HISTORY (20100915C) M.M. 4025000500010 ENDBIB 8 0 4025000500011 COMMON 2 3 4025000500012 E-ERR-DIG ERR-DIG 4025000500013 MEV PER-CENT 4025000500014 0.021 0.01 4025000500015 ENDCOMMON 3 0 4025000500016 DATA 2 14 4025000500017 E DATA 4025000500018 MEV ARB-UNITS 4025000500019 1.9489 95226. 4025000500020 2.2281 79033. 4025000500021 2.4030 67743. 4025000500022 2.6472 58078. 4025000500023 2.9092 47808. 4025000500024 3.1708 40657. 4025000500025 3.3644 31352. 4025000500026 3.7121 27328. 4025000500027 3.9424 18056. 4025000500028 4.5495 15879. 4025000500029 4.9863 11296. 4025000500030 5.1314 6767.1 4025000500031 5.4767 7112.9 4025000500032 5.8501 3259.7 4025000500033 ENDDATA 16 0 4025000500034 ENDSUBENT 33 0 4025000599999 ENDENTRY 5 0 4025099999999