ENTRY 31833 20201103 31983183300000001 SUBENT 31833001 20201103 31983183300100001 BIB 10 29 3183300100002 TITLE A method for the absolute measurement of fission cross 3183300100003 sections at neutron energies of about 8.5 MeV 3183300100004 AUTHOR (R.Arlt, M.Josch, G.Musiol, H.-G.Ortlepp, R.Teichner, 3183300100005 W.Wagner) 3183300100006 INSTITUTE (3DDRTUD,4RUSRI) 3183300100007 REFERENCE ((S,ZFK-410,122,1980)=(S,INDC(GDR)-13,122,1980)) 3183300100008 (C,80KIEV,3,192,1980) 3183300100009 Slightly different value (1.741(57) b) given 3183300100010 (P,INDC(GDR)-12,24,1980) 3183300100011 Same value given 3183300100012 ((P,ZFK-408,27,1980)=(P,INDC(GDR)-14,27,1980)) 3183300100013 Same value given 3183300100014 (C,79KNOX,,990,1979) 3183300100015 Same value given 3183300100016 REL-REF (N,,R.Arlt+,P,INDC(GDR)-19,35,1981) 3183300100017 Summary of two works done at TU Dresden in Table 3: 3183300100018 TU (1979): 1.74(11) b at 8.0 MeV 3183300100019 TU (1980): 1.801(43) b at 8.46 MeV 3183300100020 The result "TU (1979)" is in this entry (31833). 3183300100021 The result "TU (1980)" was revised to 1.853(43) b in 3183300100022 I.D.Alkhazov+,C,88MITO,,145,1988, and further revised 3183300100023 to 1.855(44) b in K.Merla+,C,91JUELIC,,510,1991, 3183300100024 which is compiled in 22304.006. 3183300100025 FACILITY (VDGT,3DDRROS) 5-MV Tandem generator 3183300100026 INC-SOURCE (D-D) Ed=9 MeV on CD2 3183300100027 DETECTOR (TELES,SIBAR,SIBAR) 3He detection at 42 deg 3183300100028 (FISCH) Multiplate pulse fission chamber 3183300100029 METHOD (ASSOP) Detection of fission fragments and helions 3183300100030 HISTORY (20201103C) On 3183300100031 ENDBIB 29 0 3183300100032 NOCOMMON 0 0 3183300100033 ENDSUBENT 32 0 3183300199999 SUBENT 31833002 20201103 31983183300200001 BIB 5 19 3183300200002 REACTION (92-U-235(N,F),,SIG) 3183300200003 SAMPLE 1.422(13) mg/cm2 3183300200004 CORRECTION Corrected for 3183300200005 - fission chamber efficiency (+5.5%) 3183300200006 - neutron scattering (+0.23%) 3183300200007 - alpha background (+2.1%) 3183300200008 - random coincidences (-7%) 3183300200009 ERR-ANALYS (ERR-T) Total error 3183300200010 (ERR-1) fission layer weighing (0.9%) 3183300200011 (ERR-2) effective inhomogenity (1.14%) 3183300200012 (ERR-3) fission chamber efficiency (1.41%) 3183300200013 (ERR-4) neutron scattering (0.4%) 3183300200014 (ERR-5) geometrical certainty (0.5%) 3183300200015 (ERR-6) alpha background (0.5%) 3183300200016 (ERR-S) statistical error (5.6%) 3183300200017 (ERR-7) random coincidences (2%) 3183300200018 STATUS (TABLE) Table 2 of ZFK-410,p122 (1980) 3183300200019 (COREL,22304006) Final result from TU (1980) work. 3183300200020 See also Table 3 of N.R.Arlt+,R,INDC(GDR)-19,35,1980. 3183300200021 ENDBIB 19 0 3183300200022 COMMON 7 6 3183300200023 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3183300200024 ERR-7 3183300200025 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3183300200026 PER-CENT 3183300200027 0.9 1.14 1.41 0.4 0.5 0.5 3183300200028 2. 3183300200029 ENDCOMMON 6 0 3183300200030 DATA 4 1 3183300200031 EN DATA ERR-T ERR-S 3183300200032 MEV B B PER-CENT 3183300200033 8.2 1.74 0.11 5.6 3183300200034 ENDDATA 3 0 3183300200035 ENDSUBENT 34 0 3183300299999 ENDENTRY 2 0 3183399999999