ENTRY 20793 20230413 231620793 0 1 SUBENT 20793001 20230413 231620793 1 1 BIB 12 24 20793 1 2 TITLE Measurements of neutron total cross section minima 20793 1 3 in natural iron and silicon 20793 1 4 AUTHOR (K.Kobayashi,Y.Fujita,Y.Ogawa) 20793 1 5 REFERENCE (J,ANE,4,449,1977) 20793 1 6 INSTITUTE (2JPNKTO) 20793 1 7 FACILITY (LINAC,2JPNKTO) 46 MeV KURRI linear accelerator 20793 1 8 INC-SOURCE (PHOTO) Pulsed source from tantalum target with 20793 1 9 5cm thick polyethylene moderator. 20793 1 10 METHOD (TOF) Flight path of 21.99+-0.02 cm. 20793 1 11 DETECTOR (NAICR) 20793 1 12 (PROPC) For neutron monitor. 20793 1 13 ANALYSIS Analysis with resolution broadened expression for 20793 1 14 the total cross section. See page 450 for detail. 20793 1 15 CORRECTION Background was subtracted using the background 20793 1 16 channel in the time analyser. 20793 1 17 Corrected for Mn impurity (less than 2%) 20793 1 18 ERR-ANALYS (ERR-T) Total error 20793 1 19 (ERR-1) Uncertainty in background 20793 1 20 (ERR-2) Uncertainty in resolution broadening 20793 1 21 (ERR-3) Uncertainty in detection efficiency shift, 20793 1 22 dead-time correction, air scattering correction, etc. 20793 1 23 HISTORY (19781201C) PDJ. 20793 1 24 (20230413A) SD:Updated to new date formats,lower case. 20793 1 25 Corrections in all Subents. 20793 1 26 ENDBIB 24 0 20793 1 27 COMMON 3 3 20793 1 28 ERR-1 ERR-2 ERR-3 20793 1 29 PER-CENT PER-CENT PER-CENT 20793 1 30 1. 2. 1. 20793 1 31 ENDCOMMON 3 0 20793 1 32 ENDSUBENT 31 0 20793 199999 SUBENT 20793002 20230413 231620793 2 1 BIB 5 7 20793 2 2 REACTION (14-SI-0(N,TOT),,SIG) 20793 2 3 SAMPLE Metal,purity 99.99%, density 2.34 g/cm*3. 20793 2 4 thickness 2.83+-0.012 atoms/barn. 20793 2 5 ERR-ANALYS (ERR-S,10.,20.) Statistical error 20793 2 6 (ERR-4,0.4,0.5) Uncertainty in sample thickness 20793 2 7 STATUS (TABLE) Table 4 from Annals of Nucl.En.,4(1977)449 20793 2 8 HISTORY (20230413U) SD: BIB updated. DATA-ERR -> ERR-T. 20793 2 9 ENDBIB 7 0 20793 2 10 NOCOMMON 0 0 20793 2 11 DATA 3 20 20793 2 12 EN DATA ERR-T 20793 2 13 KEV B B 20793 2 14 120.16 0.752 0.097 20793 2 15 121.76 0.726 0.083 20793 2 16 123.38 0.568 0.076 20793 2 17 125.03 0.533 0.067 20793 2 18 126.72 0.501 0.062 20793 2 19 128.45 0.381 0.053 20793 2 20 130.21 0.368 0.046 20793 2 21 132.00 0.450 0.047 20793 2 22 133.84 0.294 0.046 20793 2 23 135.71 0.205 0.033 20793 2 24 137.62 0.247 0.036 20793 2 25 139.57 0.178 0.028 20793 2 26 141.57 0.150 0.024 20793 2 27 143.60 0.082 0.015 20793 2 28 145.68 0.108 0.018 20793 2 29 147.81 0.106 0.020 20793 2 30 149.98 0.112 0.024 20793 2 31 152.21 0.249 0.054 20793 2 32 154.48 0.457 0.087 20793 2 33 156.80 0.538 0.167 20793 2 34 ENDDATA 22 0 20793 2 35 ENDSUBENT 34 0 20793 299999 SUBENT 20793003 20230413 231620793 3 1 BIB 5 7 20793 3 2 REACTION (14-SI-0(N,TOT),,SIG) 20793 3 3 SAMPLE Metal,purity 99.99%, density 2.34 g/cm*3. 20793 3 4 thickness 2.83+-0.012 atoms/barn. 20793 3 5 ERR-ANALYS (ERR-S,10.,20.) Statistical error 20793 3 6 (ERR-4,0.4,0.5) Uncertainty in sample thickness 20793 3 7 STATUS (TABLE) Table 4 from Annals of Nucl.En.,4(1977)449 20793 3 8 HISTORY (20230413U) SD: BIB updated. DATA-ERR -> ERR-T. 20793 3 9 ENDBIB 7 0 20793 3 10 NOCOMMON 0 0 20793 3 11 DATA 3 9 20793 3 12 EN DATA ERR-T 20793 3 13 KEV B B 20793 3 14 51.26 0.646 0.103 20793 3 15 51.70 0.551 0.083 20793 3 16 52.14 0.495 0.070 20793 3 17 52.60 0.358 0.061 20793 3 18 53.06 0.343 0.051 20793 3 19 53.52 0.277 0.046 20793 3 20 53.99 0.177 0.032 20793 3 21 54.47 0.140 0.037 20793 3 22 54.96 0.679 0.226 20793 3 23 ENDDATA 11 0 20793 3 24 ENDSUBENT 23 0 20793 399999 SUBENT 20793004 20230413 231620793 4 1 BIB 5 10 20793 4 2 REACTION (26-FE-0(N,TOT),,SIG) 20793 4 3 SAMPLE Four targets, all greater than 99.8% purity 20793 4 4 and density 7.84 g/cm*3. 20793 4 5 thickness - cm atoms/barn 20793 4 6 13.5 1.16+-0.005 20793 4 7 6.0 0.517+-0.002 20793 4 8 ERR-ANALYS (ERR-S,3.5,4.6) Statistical error 20793 4 9 (ERR-4) Uncertainty in sample thickness 20793 4 10 STATUS (TABLE) Table 3 from Annals of Nucl.En.,4(1977)449 20793 4 11 HISTORY (20230413U) SD: BIB updated. DATA-ERR -> ERR-T. 20793 4 12 ENDBIB 10 0 20793 4 13 COMMON 1 3 20793 4 14 ERR-4 20793 4 15 PER-CENT 20793 4 16 0.4 20793 4 17 ENDCOMMON 3 0 20793 4 18 DATA 3 11 20793 4 19 EN DATA ERR-T 20793 4 20 KEV B B 20793 4 21 22.17 1.100 0.056 20793 4 22 22.43 1.091 0.056 20793 4 23 22.68 0.981 0.042 20793 4 24 22.94 0.814 0.036 20793 4 25 23.21 0.723 0.033 20793 4 26 23.48 0.646 0.029 20793 4 27 23.75 0.465 0.021 20793 4 28 24.03 0.425 0.021 20793 4 29 24.32 0.379 0.018 20793 4 30 24.61 0.431 0.021 20793 4 31 24.90 0.715 0.037 20793 4 32 ENDDATA 13 0 20793 4 33 ENDSUBENT 32 0 20793 499999 ENDENTRY 4 0 2079399999999