ENTRY 30923 20160708 31743092300000001 SUBENT 30923001 20160708 31743092300100001 BIB 12 43 3092300100002 TITLE Measurement of the cross sections for the 238U(n,2n) 3092300100003 and 232Th(n,2n) reactions in the 13.5 - 14.8 MeV 3092300100004 energy range 3092300100005 AUTHOR (P.Raics,S.Nagy,S.Daroczy,N.V.Kornilov) 3092300100006 INSTITUTE (3HUNDEB,4RUSFEI) 3092300100007 REFERENCE (R,INDC(HUN)-029,3,1990) 3092300100008 FACILITY (CCW,3HUNDEB) Cockcroft-Walton accelerator. 3092300100009 INC-SOURCE (D-T) D-T reaction by bombarding a TiT target with 3092300100010 analyzed deuteron beam from a Cockcroft-Walton 3092300100011 accelerator. Neutron energy was varied by changing 3092300100012 the emission angle to the deuteron beam. 3092300100013 PART-DET (DG) 3092300100014 METHOD (ACTIV,STTA) 3092300100015 DETECTOR (GELI) Activity of the residual nuclei for the 3092300100016 238U(n,2n), 115In(n,n'), 27Al(n,p), 27Al(n,alpha) and 3092300100017 56Fe(n,p) reactions have been determined by a 3092300100018 Ge(Li) - detector of 40 cm3 having energy resolution 3092300100019 of about 3 keV (FWHM) at 1000 keV. 3092300100020 (FISCH,SCIN) Monitoring of the time variation of the 3092300100021 neutron flux was performed either by the fission 3092300100022 chamber or a 6LiI(Eu3) or stilbene detector. These 3092300100023 data were then used to compute the corrections for 3092300100024 the initial activities of different half-lives. 3092300100025 (D4PI) Activity of the Al and Cu foils has also been 3092300100026 determined by 4Pi-beta counting using a flow-type 3092300100027 proportional counter. The efficiency was measured by 3092300100028 calibrated sources 3092300100029 CORRECTION The following corrections were applied to the 3092300100030 measured fission events: losses in pulses due to the 3092300100031 discriminator threshold calculated from pulse height 3092300100032 spectra, laboratory angular distribution of 3092300100033 fragments, and fragment self-absorption in the layer. 3092300100034 ERR-ANALYS (ERR-T) total uncertainty includes: 3092300100035 (1) Uncertainties in flux measurements: 3092300100036 (ERR-1) System. uncertainty in nuclear data 3092300100037 (ERR-2)System.uncertainty in Ge(Li) detector efficiency3092300100038 (DATA-ERR1) Random uncertainty in nuclear data 3092300100039 (DATA-ERR3) Random uncertainty in Ge(Li) detector 3092300100040 efficiency 3092300100041 * and uncertainties in activity of final nucleus 3092300100042 described in Subents 002, 003 3092300100043 HISTORY (20100604C) SD 3092300100044 (20160624U) VS. MONITOR, DECAY-MON corrected in 002. 3092300100045 ENDBIB 43 0 3092300100046 COMMON 4 3 3092300100047 ERR-1 ERR-2 DATA-ERR1 DATA-ERR3 3092300100048 PER-CENT PER-CENT PER-CENT PER-CENT 3092300100049 1.0 1.5 1.0 1.0 3092300100050 ENDCOMMON 3 0 3092300100051 ENDSUBENT 50 0 3092300199999 SUBENT 30923002 20160708 31743092300200001 BIB 9 43 3092300200002 REACTION (92-U-238(N,2N)92-U-237,,SIG) 3092300200003 SAMPLE Uranium samples were produced by pressing oxide 3092300200004 powder. Two types: samples of natural isotopic 3092300200005 abundance and made from uranium highly depleted in 3092300200006 235U. 3092300200007 DECAY-DATA (92-U-237,6.75D,DG,208.0,0.218, 3092300200008 DG,267.5,0.0073, 3092300200009 DG,332.4,0.0121) 3092300200010 Data are from R.Gunnink; Gamma Gamma Library File 3092300200011 GELI B1075. L.L.L. Report, 197S (not published) 3092300200012 REL-REF (R,,U.Reus+,J,AND,29,193,1983) Energy and intensity of 3092300200013 gamma-lines 3092300200014 MONITOR ((MONIT1)13-AL-27(N,A)11-NA-24,,SIG) 3092300200015 ((MONIT2)13-AL-27(N,P)12-MG-27,,SIG) 3092300200016 ((MONIT3)49-IN-115(N,INL)49-IN-115-M,,SIG) 3092300200017 ((MONIT4)29-CU-65(N,2N)29-CU-64,,SIG) 3092300200018 ((MONIT5)29-CU-65(N,2N)29-CU-64,,SIG) 3092300200019 ((MONIT6)29-CU-63(N,2N)29-CU-62,,SIG) 3092300200020 ((MONIT7)29-CU-63(N,2N)29-CU-62,,SIG) 3092300200021 DECAY-MON ((MONIT1)11-NA-24,14.97HR,DG,1368.5,1.0, 3092300200022 DG,2753.9,0.999) 3092300200023 ((MONIT2)12-MG-27,9.45MIN,DG,843.76,0.718, 3092300200024 DG,1014.4,0.282) 3092300200025 DG,2113.05,0.143) 3092300200026 ((MONIT3)49-IN-115-M,4.486HR,DG,336.23,0.458) 3092300200027 ((MONIT4)29-CU-64,12.701HR,DG,511.,,B) 3092300200028 ((MONIT5)29-CU-64,12.701HR,DG,511.,,B) 3092300200029 ((MONIT6)29-CU-62,9.74MIN,B) 3092300200030 ((MONIT7)29-CU-62,9.74MIN,B) 3092300200031 ERR-ANALYS Additionally to uncertainties described in Subent 001, 3092300200032 total uncertainty includes: 3092300200033 (1) Uncertainties in flux measurements: 3092300200034 (DATA-ERR2,0.5,0.9) Random uncertainty in flux activity3092300200035 (2) Uncertainties in activity of final nucleus: 3092300200036 (ERR-4) System.uncertainty in sample position and 3092300200037 self-absorption 3092300200038 (ERR-5) System.uncertainty in sample weight 3092300200039 (ERR-6) System.uncertainty in gamma-intensity 3092300200040 (DATA-ERR5) Random uncertainty in sample position and 3092300200041 self-absorption 3092300200042 (DATA-ERR6,0.4,1.0) Random uncertainty in peak area 3092300200043 STATUS (TABLE) table 6 from INDC(HUN)-029,3,1990 3092300200044 HISTORY (20160624U) VS. MONITOR, DECAY-MON corrected. 3092300200045 ENDBIB 43 0 3092300200046 COMMON 4 3 3092300200047 ERR-4 ERR-5 ERR-6 DATA-ERR5 3092300200048 PER-CENT PER-CENT PER-CENT PER-CENT 3092300200049 1.0 0.7 1.0 1.5 3092300200050 ENDCOMMON 3 0 3092300200051 DATA 11 19 3092300200052 EN EN-RSL DATA ERR-T MONIT1 MONIT2 3092300200053 MONIT3 MONIT4 MONIT5 MONIT6 MONIT7 3092300200054 MEV MEV MB MB MB MB 3092300200055 MB MB MB MB MB 3092300200056 13.51 0.12 1072. 49. 125.6 81.5 3092300200057 78.3 830. 736. 400. 413. 3092300200058 13.55 0.10 1053. 38. 125.5 3092300200059 77.3 3092300200060 13.55 0.10 1087. 39. 3092300200061 77.3 3092300200062 13.75 0.10 1005. 46. 123.3 79.6 3092300200063 72.0 870. 772. 411. 459. 3092300200064 13.76 0.08 982. 35. 123.3 3092300200065 72.0 3092300200066 13.76 0.08 1021. 36. 3092300200067 3092300200068 13.76 0.10 997. 45. 79.6 3092300200069 872. 773. 439. 461. 3092300200070 14.08 0.10 868. 31. 120.4 3092300200071 65.2 3092300200072 14.08 0.10 891. 32. 120.4 3092300200073 65.2 3092300200074 14.10 0.19 895. 41. 120.4 77.0 3092300200075 65.0 930. 816. 487. 517. 3092300200076 14.13 0.11 864. 39. 120.4 76.7 3092300200077 64.6 933. 818. 491. 521. 3092300200078 14.40 0.16 782. 36. 117.6 74.7 3092300200079 61.8 990. 843. 524. 562. 3092300200080 14.41 0.20 753. 90. 117.4 3092300200081 3092300200082 14.42 0.10 773. 28. 117.2 3092300200083 61.7 3092300200084 14.42 0.10 794. 29. 3092300200085 3092300200086 14.45 0.12 778. 36. 116.5 74.3 3092300200087 61.4 1000. 847. 535. 569. 3092300200088 14.62 0.21 732. 58. 114.0 3092300200089 3092300200090 14.73 0.15 685. 24. 113.5 72.2 3092300200091 60.1 3092300200092 14.80 0.17 696. 32. 112.5 71.6 3092300200093 59.8 1070. 870. 585. 616. 3092300200094 ENDDATA 42 0 3092300200095 ENDSUBENT 94 0 3092300299999 SUBENT 30923003 20100604 31463092300300001 BIB 5 25 3092300300002 REACTION (92-U-238(N,2N)92-U-237,,SIG,,AV) 3092300300003 SAMPLE Uranium samples were produced by pressing oxide 3092300300004 powder. Two types: samples of natural isotopic 3092300300005 abundance and made from uranium highly depleted in 3092300300006 235U. 3092300300007 DECAY-DATA (92-U-237,6.75D,DG,208.0,0.218, 3092300300008 DG,267.5,0.0073, 3092300300009 DG,332.4,0.0121) 3092300300010 Data are from R.Gunnink; Gamma Gamma Library File 3092300300011 GELI B1075. L.L.L. Report, 197S (not published) and 3092300300012 U.Reus, At.Data Nucl.Data Tabl. 29 194 (1983). 3092300300013 ERR-ANALYS Additionally to uncertainties described in Subent 001, 3092300300014 total uncertainty includes: 3092300300015 (1) Uncertainties in flux measurements: 3092300300016 (DATA-ERR2,0.5,0.9) Random uncertainty in flux activity3092300300017 (2) Uncertainties in activity of final nucleus: 3092300300018 (ERR-4) System.uncertainty in sample position and 3092300300019 self-absorption 3092300300020 (ERR-5) System.uncertainty in sample weight 3092300300021 (ERR-6) System.uncertainty in gamma-intensity 3092300300022 (DATA-ERR5) Random uncertainty in sample position and 3092300300023 self-absorption 3092300300024 (DATA-ERR6,0.4,1.0) Random uncertainty in peak area 3092300300025 STATUS (TABLE) table 6 from INDC(HUN)-029,3,1990 3092300300026 (DEP,30923002) 3092300300027 ENDBIB 25 0 3092300300028 COMMON 4 3 3092300300029 ERR-4 ERR-5 ERR-6 DATA-ERR5 3092300300030 PER-CENT PER-CENT PER-CENT PER-CENT 3092300300031 1.0 0.7 1.0 1.5 3092300300032 ENDCOMMON 3 0 3092300300033 DATA 4 6 3092300300034 EN EN-RSL DATA ERR-T 3092300300035 MEV MEV MB MB 3092300300036 13.54 0.11 1070. 39. 3092300300037 13.76 0.10 1001. 36. 3092300300038 14.10 0.10 879. 31. 3092300300039 14.42 0.11 782. 28. 3092300300040 14.62 0.21 732. 58. 3092300300041 14.76 0.15 689. 24. 3092300300042 ENDDATA 8 0 3092300300043 ENDSUBENT 42 0 3092300399999 SUBENT 30923004 20100604 31463092300400001 BIB 8 41 3092300400002 REACTION (90-TH-232(N,2N)90-TH-231,,SIG) 3092300400003 SAMPLE metal thorium 3092300400004 DECAY-DATA (90-TH-231,25.52HR,DG,25.64,0.145, 3092300400005 DG,58.57,0.0048, 3092300400006 DG,63.86,0.00023, 3092300400007 DG,72.78,0.0025, 3092300400008 DG,81.24,0.0089, 3092300400009 DG,82.11,0.0040, 3092300400010 DG,84.21,0.066, 3092300400011 DG,89.95,0.0090, 3092300400012 DG,93.02,0.000446, 3092300400013 DG,99.28,0.0012, 3092300400014 DG,102.27,0.0041) 3092300400015 Data are from R.Gunnink; Gamma Gamma Library File 3092300400016 GELI B1075. L.L.L. Report, 197S (not published) and 3092300400017 U.Reus, At.Data Nucl.Data Tabl. 29 194 (1983). 3092300400018 MONITOR ((MONIT1)13-AL-27(N,A)11-NA-24,,SIG) 3092300400019 ((MONIT2)26-FE-56(N,P)25-MN-56,,SIG) 3092300400020 DECAY-MON ((MONIT1)11-NA-24,14.97HR,DG,1368.5,1.0, 3092300400021 DG,2753.9,0.999) 3092300400022 ((MONIT2)25-MN-56,2.579HR,DG,846.754,0.9889, 3092300400023 DG,1810.72,0.272, 3092300400024 DG,2113.05,0.143) 3092300400025 DETECTOR (HPGE) A HP Germanium detector of 1.4 cm3 with O.5 3092300400026 keV resolution at 100 keV was applied to analyze low 3092300400027 energy gamma-rays from 231Th. 3092300400028 ERR-ANALYS Additionally to uncertainties described in Subent 001, 3092300400029 total uncertainty includes: 3092300400030 (1) Uncertainties in flux measurements: 3092300400031 (DATA-ERR2,0.5,1.3) Random uncertainty in flux activity3092300400032 (ERR-3) System.uncertainty in HPGe detector efficiency 3092300400033 (DATA-ERR4) Random uncertainty in HPGe detector 3092300400034 efficiency 3092300400035 (2) Uncertainties in activity of final nucleus: 3092300400036 (ERR-4) System.uncertainty in sample position and 3092300400037 self-absorption 3092300400038 (ERR-5) System.uncertainty in sample weight 3092300400039 (DATA-ERR5) Random uncertainty in sample position and 3092300400040 self-absorption 3092300400041 (DATA-ERR6,0.4,0.8) Random uncertainty in peak area 3092300400042 STATUS (TABLE) table 6 from INDC(HUN)-029,3,1990 3092300400043 ENDBIB 41 0 3092300400044 COMMON 5 3 3092300400045 ERR-3 ERR-4 ERR-5 DATA-ERR4 DATA-ERR5 3092300400046 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3092300400047 1.7 1.5 0.1 1.0 1.2 3092300400048 ENDCOMMON 3 0 3092300400049 DATA 6 5 3092300400050 EN EN-RSL DATA ERR-T MONIT1 MONIT2 3092300400051 MEV MEV MB MB MB MB 3092300400052 13.49 0.12 1967. 79. 125. 115. 3092300400053 13.74 0.09 1807. 69. 124. 114. 3092300400054 14.10 0.08 1585. 57. 121. 113. 3092300400055 14.46 0.12 1400. 55. 117. 109. 3092300400056 14.84 0.19 1231. 47. 113. 104. 3092300400057 ENDDATA 7 0 3092300400058 ENDSUBENT 57 0 3092300499999 ENDENTRY 4 0 3092399999999