ENTRY 30451 20090311 31353045100000001 SUBENT 30451001 20090311 31353045100100001 BIB 14 50 3045100100002 INSTITUTE (3SLNIJS) 3045100100003 REFERENCE (S,IAEA-208,(2),247,1978) Neutron X-section for reac. 3045100100004 Vienna,15-19 Nov.1976. 3045100100005 (C,70HELSINKI,2,571,197006) Prev.exp.in diff.exp. 3045100100006 condit'n EXFOR30072. 3045100100007 (T,RANT,1974) M.S.Thesis by J.Rant,Univ.of 3045100100008 Ljubljana 1974. Experimental detail. 3045100100009 AUTHOR (M.Najzer,J.Rant) 3045100100010 TITLE Spectrum averaged cross-section measurements in the 3045100100011 fast neutron field of a uranium fission plate. 3045100100012 FACILITY (REAC,3SLNIJS) 3045100100013 INC-SOURCE (REAC) 3045100100014 Triga mark II reactor, Ljubljana, and enriched uranium 3045100100015 converter plate. 3045100100016 INC-SPECT Characteristics of the neutron source 3045100100017 .Shape of the source circular disk (dia.260*3.1mm) 3045100100018 .Thickness of uranium 1.5 mm 3045100100019 .U-235 enrichment 20% 3045100100020 .Thickness of Al-cldding 0.8 mm 3045100100021 .Fast neutron flux on the converter surface(in115(n,n')3045100100022 detector) 4.3 x 10**7 n/cm2/sec. 3045100100023 .Thermal neutron flux on the converter surface 3045100100024 3.3 x 10**7 n/cm2/sec. 3045100100025 .Surface distribution of the incident thermal neutron 3045100100026 beam homogeneous within 1.5%. 3045100100027 .Transmitted thermal neutron flux 3045100100028 1.3 x 10**7 n/cm2/sec. 3045100100029 .Cadmium ratio of the incident neutron flux 3045100100030 (Au detector) 3045100100031 The spectrum shape of the fast neutron converter field3045100100032 slightly deviates from the U-235 fission spectrum. 3045100100033 METHOD (ACTIV) 3045100100034 DETECTOR (NAICR) Low background 3inch * 3inch NaI(Tl) gamma-ray 3045100100035 spectrometer. 3045100100036 ANALYSIS Intensities of gamma lines were calculated using the 3045100100037 gamma 2 unfolding code. 3045100100038 MONITOR (13-AL-27(N,A)11-NA-24,,SIG,,FIS) = 0.705 mb 3045100100039 STATUS (TABLE) Data taken from Table IV of 3045100100040 IAEA-208,vol.2,p.247.3045100100041 (APRVD) Approved by Najzer, 78/07/19. 3045100100042 HISTORY (19780607C) KO.- 3045100100043 (19780905A) KO.-'Aprvd' added. Corrections of BIB in 3045100100044 .004 and .006.- 3045100100045 (20090310A) SD:Updated to new date formats,lower case. 3045100100046 ERR-ANALYS (DATA-ERR) Uncertainty includes: 3045100100047 (ERR-1) The accuracy of gamma intensities with 3045100100048 the gamma code 3045100100049 (ERR-2) The accuracy of spectrometer efficiency 3045100100050 Total uncertainties are not given 3045100100051 since only one measurement has been performed. 3045100100052 ENDBIB 50 0 3045100100053 COMMON 4 3 3045100100054 EN-DUMMY MONIT ERR-1 ERR-2 3045100100055 MEV MB PER-CENT PER-CENT 3045100100056 1.0000E+00 7.0500E-01 0.3 2.0 3045100100057 ENDCOMMON 3 0 3045100100058 ENDSUBENT 57 0 3045100199999 SUBENT 30451002 20090311 31353045100200001 BIB 4 4 3045100200002 REACTION (49-IN-115(N,INL)49-IN-115-M,,SIG,,FIS) 3045100200003 SAMPLE Metal foil, thickness = 0.121 mm +- 2%. 3045100200004 DECAY-DATA (49-IN-115-M,4.53HR,DG,335.,0.46) 3045100200005 PART-DET (DG) 3045100200006 ENDBIB 4 0 3045100200007 NOCOMMON 0 0 3045100200008 DATA 4 1 3045100200009 DATA DATA-ERR ERR-1 ERR-2 3045100200010 MB MB PER-CENT PER-CENT 3045100200011 1.8400E+02 7.4000E+00 0.3 2.0 3045100200012 ENDDATA 3 0 3045100200013 ENDSUBENT 12 0 3045100299999 SUBENT 30451003 20090311 31353045100300001 BIB 4 5 3045100300002 REACTION (30-ZN-64(N,P)29-CU-64,,SIG,,FIS) 3045100300003 SAMPLE Metal foil, thickness = 0.245 mm +- 0.5%. 3045100300004 DECAY-DATA (29-CU-64,12.71HR,B+,,0.19) 3045100300005 Half-life = 12.71+-0.01 hr. 3045100300006 PART-DET (B+,AR) 3045100300007 ENDBIB 5 0 3045100300008 NOCOMMON 0 0 3045100300009 DATA 5 1 3045100300010 DATA DATA-ERR ERR-1 ERR-2 ERR-HL 3045100300011 MB MB PER-CENT PER-CENT HR 3045100300012 3.0100E+01 8.0000E-01 0.3 2.0 0.01 3045100300013 ENDDATA 3 0 3045100300014 ENDSUBENT 13 0 3045100399999 SUBENT 30451004 20090311 31353045100400001 BIB 5 11 3045100400002 REACTION (13-AL-27(N,P)12-MG-27,,SIG,,FIS) 3045100400003 SAMPLE Metal foil, thickness = 0.131 mm +- 0.5%. 3045100400004 DECAY-DATA (12-MG-27,9.44MIN,DG,835.,0.69, 3045100400005 DG,1015.,0.31) 3045100400006 ===Author's note (78/07/19) === 3045100400007 Intensities of both lines were added for determination3045100400008 of the activities of detectors. Therefore the sum of 3045100400009 both transition ratios (100) was used. 3045100400010 PART-DET (DG) 3045100400011 HISTORY (19780905A) KO.-Author's note replaces the compiler's.-3045100400012 (20090310A) SD:Updated to new date formats,lower case. 3045100400013 ENDBIB 11 0 3045100400014 NOCOMMON 0 0 3045100400015 DATA 4 1 3045100400016 DATA DATA-ERR ERR-1 ERR-2 3045100400017 MB MB PER-CENT PER-CENT 3045100400018 3.7000E+00 2.0000E-01 0.3 2.0 3045100400019 ENDDATA 3 0 3045100400020 ENDSUBENT 19 0 3045100499999 SUBENT 30451005 20090311 31353045100500001 BIB 4 5 3045100500002 REACTION (26-FE-56(N,P)25-MN-56,,SIG,,FIS) 3045100500003 SAMPLE Metal foil, thickness = 0.258 mm +- 0.5%. 3045100500004 DECAY-DATA (25-MN-56,2.587HR,DG,846.7,0.99) 3045100500005 Half-life = 2.587 +- 0.006 hr 3045100500006 PART-DET (DG) 3045100500007 ENDBIB 5 0 3045100500008 NOCOMMON 0 0 3045100500009 DATA 4 1 3045100500010 DATA ERR-1 ERR-2 ERR-HL 3045100500011 MB PER-CENT PER-CENT HR 3045100500012 9.8000E-01 0.3 2.0 0.006 3045100500013 ENDDATA 3 0 3045100500014 ENDSUBENT 13 0 3045100599999 SUBENT 30451006 20090311 31353045100600001 BIB 5 9 3045100600002 REACTION (12-MG-24(N,P)11-NA-24,,SIG,,FIS) 3045100600003 SAMPLE Metal foil, thickness = 0.845 mm +- 0.5%. 3045100600004 DECAY-DATA (11-NA-24-G,15.030HR) 3045100600005 Half-life = 15.030 +- 0.006hr, abundance 78.8 per-cent3045100600006 The spectrum of Na-24 constituted for itself a 3045100600007 response function with known absolute activity. 3045100600008 PART-DET (DG) 3045100600009 HISTORY (19780905A) KO.-Minor amendm't in BIB-section.- 3045100600010 (20090310A) SD:Updated to new date formats,lower case. 3045100600011 ENDBIB 9 0 3045100600012 NOCOMMON 0 0 3045100600013 DATA 5 1 3045100600014 DATA DATA-ERR ERR-1 ERR-2 ERR-HL 3045100600015 MB MB PER-CENT PER-CENT HR 3045100600016 1.4900E+00 6.0000E-02 0.2 2.0 0.006 3045100600017 ENDDATA 3 0 3045100600018 ENDSUBENT 17 0 3045100699999 SUBENT 30451007 20090311 31353045100700001 BIB 4 5 3045100700002 REACTION (9-F-19(N,2N)9-F-18,,SIG,,FIS) 3045100700003 SAMPLE Gaflon, thickness = 1.040 mm +- 2% 3045100700004 Chemical composition of F is 75.9%. 3045100700005 DECAY-DATA (9-F-18,112.MIN,B+,,0.97) 3045100700006 PART-DET (B+,AR) 3045100700007 ENDBIB 5 0 3045100700008 NOCOMMON 0 0 3045100700009 DATA 4 1 3045100700010 DATA DATA-ERR ERR-1 ERR-2 3045100700011 MICRO-B MICRO-B PER-CENT PER-CENT 3045100700012 6.5000E+00 3.0000E-01 1.3 0.5 3045100700013 ENDDATA 3 0 3045100700014 ENDSUBENT 13 0 3045100799999 ENDENTRY 7 0 3045199999999