ENTRY 22565 20071201 2256500000001 SUBENT 22565001 20071201 20080202 2256500100001 BIB 12 44 2256500100002 TITLE .The U-238 (n,f) cross section and its ratio to the 2256500100003 27-Al(n,alpha)24-Na and 56-Fe(n,p)56-Mn cross section 2256500100004 in 14 MeV region 2256500100005 AUTHOR (G.Winkler, V.E.Levis, T.B.Ryves, M.Wagner) 2256500100006 INSTITUTE (2AUSIRK) Winkler, Wagner 2256500100007 (2UK NPL) Lewis, Ryves 2256500100008 REFERENCE (C,91JUELIC,,514,199105) Main reference, data given 2256500100009 (J,ANE,15,363,1988) Experimental details 2256500100010 FACILITY (ACCEL,2UK NPL) The NPL SAMES accelerator 2256500100011 METHOD (ASSOP,ACTIV,PSD) 2256500100012 MONITOR A(13-AL-27(N,A)11-NA-24,,SIG) 2256500100013 B(26-FE-56(N,P)25-MN-56,,SIG) 2256500100014 DECAY-MON A(11-NA-24,14.960HR,DG) 2256500100015 B(25-MN-56,2.5785HR,DG) 2256500100016 DETECTOR (FISCH) 2256500100017 ERR-ANALYS (ERR-T) Total error composed of the sum of its 2256500100018 constituents 2256500100019 (ERR-S) Stat. error of the attenuation for Fe56 monitor2256500100020 measurement 2256500100021 (ERR-1) Stat. error of the attenuation for Al27 monitor2256500100022 measurement 2256500100023 (ERR-2) Error of the each monitor cross section 2256500100024 (ERR-3) Error of the each monitor energy determination 2256500100025 (ERR-4) Error of the BETA-ray counting efficiency for 2256500100026 each monitor 2256500100027 (ERR-5) Error of the distance between U-238 sample and 2256500100028 monitor foil 2256500100029 (ERR-6) Max error of the attenuation for each monitor 2256500100030 (ERR-7) Half-life error for 11-NA-24 2256500100031 (ERR-8) Half-life error for 25-Mn-56. Half-life errors2256500100032 were taken from IAEA Technical Report, Series No.227, 2256500100033 1983. And from Table de Radionucleides, Laboratoire de2256500100034 Metrologie des Rayonnements Ionisants, CEA Saclay, 2256500100035 1982 et 1987 (In French) 2256500100036 (ERR-9) Error of the extrapolation of the pulse-height2256500100037 spectrum from the discrimination level to zero2256500100038 pulse height 2256500100039 (ERR-10) Error due to the correction for the self- 2256500100040 absorption of the fission fragments 2256500100041 (ERR-11) Error due to low-energy neutrons fission 2256500100042 (ERR-12) Error due to the sample mass 2256500100043 COMMENT .Errors ERR-7, ERR-8, ERR-12 in per-cent determined 2256500100044 BY compiler 2256500100045 HISTORY (20071201C) SM 2256500100046 ENDBIB 44 0 2256500100047 COMMON 15 9 2256500100048 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2256500100049 ERR-6 ERR-7 ERR-7 ERR-8 ERR-8 ERR-9 2256500100050 ERR-10 ERR-11 ERR-12 2256500100051 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2256500100052 PER-CENT HR PER-CENT HR PER-CENT PER-CENT 2256500100053 PER-CENT PER-CENT PER-CENT 2256500100054 0.5 0.2 0.5 0.2 0.3 0.1 2256500100055 0.1 0.006 0.04 0.006 0.23 0.25 2256500100056 0.1 0.2 0.25 2256500100057 ENDCOMMON 9 0 2256500100058 ENDSUBENT 57 0 2256500199999 SUBENT 22565002 20071201 20080202 2256500200001 BIB 3 3 2256500200002 REACTION (92-U-238(N,F),,SIG) 2256500200003 SAMPLE .Metallic layer 156.6 +- 0.4 microgram (=0.25% - SM) 2256500200004 STATUS .From text of main reference, p.516 2256500200005 ENDBIB 3 0 2256500200006 NOCOMMON 0 0 2256500200007 DATA 4 1 2256500200008 EN DATA ERR-T ERR-T 2256500200009 MEV B B PER-CENT 2256500200010 14.5 1.196 0.013 1.1 2256500200011 ENDDATA 3 0 2256500200012 ENDSUBENT 11 0 2256500299999 ENDENTRY 2 0 2256599999999