ENTRY 40717 20231113 421640717 0 1 SUBENT 40717001 20231113 421640717 1 1 BIB 15 54 40717 1 2 TITLE Measurement of absorption cross-sections for neutrons 40717 1 3 with a mean energy of 24 keV by transmission in a 40717 1 4 spherical geometry 40717 1 5 AUTHOR (T.S.Belanova,A.A.Van'kov,F.F.Mikhaylus, 40717 1 6 Yu.Ya.Stavisskiy) 40717 1 7 REFERENCE (C,66PARIS,I,455(96),1966) 40717 1 8 STI/PUB/140 40717 1 9 INSTITUTE (4RUSFEI) 40717 1 10 INC-SOURCE Sb-Be neutron source of 30 mm diameter, Be thickness 40717 1 11 2-4 mm, intensity ~10**8 n/sec. 40717 1 12 Mean neutron energy 24 keV. 40717 1 13 SAMPLE Spherical layers 40717 1 14 METHOD (SHELT) Spherical shell transmission. 40717 1 15 Independent measurements by 40717 1 16 1) long counter and 40717 1 17 2) fission chambers in water tank. 40717 1 18 To search resonance blocking of fast neutrons, 40717 1 19 the samples deluted by Pb-Bi alloy ( volume content 40717 1 20 in sample ~ 70 %) and samples of different thickness 40717 1 21 were used. 40717 1 22 DETECTOR (LONGC) System of long counters was used for neutrons 40717 1 23 detection. 40717 1 24 (FISCH) Water tank with little fission chambers 40717 1 25 containing U-235 layer was used for neutrons detection.40717 1 26 ANALYSIS Monte-Carlo method to calculate transmissions. 40717 1 27 Table 2 contains resulting data obtained from 40717 1 28 measurements by long counter and water tank with 40717 1 29 fission chambers. 40717 1 30 MONITOR Absolute measurements 40717 1 31 CORRECTION . For 40717 1 32 non-monoenergetic neutrons; 40717 1 33 neutron source dimensions and absorption in the 40717 1 34 neutron source; 40717 1 35 attenuation of neutrons in the water tank; 40717 1 36 absorption in Pb-Bi alloy; 40717 1 37 fission of U-235 admixture in natural U-238. 40717 1 38 Total correction was in a range 5 - 25 %. 40717 1 39 ERR-ANALYS (DATA-ERR) Total error. 40717 1 40 REL-REF (O,40808001,A.A.Van'kov+,J,SJA,19,903,1965) 40717 1 41 Data for U-235 and Pu-239. 40717 1 42 (O,40072001,T.S.Belanova+,J,SJA,19,858,1965) Data for 40717 1 43 Cr, Zn, Zr, Nb, Ag, Cd, Sn,Sb, W, Au, Hg, Pb, Bi,Th, 40717 1 44 U-238 given in Table 2 of 66PARIS,I,455(96),1966. 40717 1 45 COMMENT Of authors. Data of Table 2 in 66PARIS,I,455(96),1966 40717 1 46 are final. See title of Table 2. 40717 1 47 Of compiler. 40717 1 48 Data for U-238 were revised in A.A.Van'kov+, 40717 1 49 R,YK-9,44,1972, and are given in 40072.019 - 40717 1 50 misprint in U-235 admixture was corrected and resonance40717 1 51 structure was taken into account. 40717 1 52 HISTORY (19840418T) Converted from ENTRY 80163 40717 1 53 (20231113U) Upper -> lower case correction. 40717 1 54 Dates were corrected for 4-digits year. 40717 1 55 Subents 004-006 were added - Cu, Mo, In data. 40717 1 56 ENDBIB 54 0 40717 1 57 NOCOMMON 0 0 40717 1 58 ENDSUBENT 57 0 40717 199999 SUBENT 40717002 20231113 421640717 2 1 BIB 2 6 40717 2 2 REACTION (38-SR-0(N,G),,SIG) 40717 2 3 STATUS (TABLE,,T.S.Belanova+,C,66PARIS,I,455(96),1966) 40717 2 4 Table 2. 40717 2 5 . This Subent data ( 108+-15 mb) supersede Subent 40717 2 6 40072.038 data (105.+-13. mb) - see comment of authors 40717 2 7 in Subent 40717.001. 40717 2 8 ENDBIB 6 0 40717 2 9 NOCOMMON 0 0 40717 2 10 DATA 3 1 40717 2 11 EN DATA DATA-ERR 40717 2 12 KEV MB MB 40717 2 13 24. 108. 15. 40717 2 14 ENDDATA 3 0 40717 2 15 ENDSUBENT 14 0 40717 299999 SUBENT 40717003 20231113 421640717 3 1 BIB 3 8 40717 3 2 REACTION (28-NI-0(N,G),,SIG) 40717 3 3 STATUS (TABLE,,T.S.Belanova+,C,66PARIS,I,455(96),1966) 40717 3 4 Table 2. 40717 3 5 (COREL,40374008) Data of earlier publication of 40717 3 6 1958 year - 50.+-1 mb at 25.+-4. keV - are in 40717 3 7 Subent 40374008 ( experiment at 1952-1955 years) 40717 3 8 are not mentioned in C,66PARIS,I,455(96),1966 40717 3 9 HISTORY (20231113U) COMMENT was deleted. COREL was added. 40717 3 10 ENDBIB 8 0 40717 3 11 NOCOMMON 0 0 40717 3 12 DATA 3 1 40717 3 13 EN DATA DATA-ERR 40717 3 14 MEV MB MB 40717 3 15 24. 23. 6. 40717 3 16 ENDDATA 3 0 40717 3 17 ENDSUBENT 16 0 40717 399999 SUBENT 40717004 20231113 421640717 4 1 BIB 3 7 40717 4 2 REACTION (29-CU-0(N,G),,SIG) 40717 4 3 STATUS (TABLE,,T.S.Belanova+,C,66PARIS,I,455(96),1966) 40717 4 4 Table 2. 40717 4 5 . This Subent data ( 58.+-8. mb) supersede Subent 40717 4 6 40072.003 data ( 59.+-8. mb) - see comment of authors 40717 4 7 in Subent 40717.001. 40717 4 8 HISTORY (20231113C) Subent was added. 40717 4 9 ENDBIB 7 0 40717 4 10 NOCOMMON 0 0 40717 4 11 DATA 3 1 40717 4 12 EN DATA DATA-ERR 40717 4 13 KEV MB MB 40717 4 14 24. 58. 8. 40717 4 15 ENDDATA 3 0 40717 4 16 ENDSUBENT 15 0 40717 499999 SUBENT 40717005 20231113 421640717 5 1 BIB 3 11 40717 5 2 REACTION (42-MO-0(N,G),,SIG) 40717 5 3 STATUS (TABLE,,T.S.Belanova+,C,66PARIS,I,455(96),1966) 40717 5 4 Table 2. 40717 5 5 . This Subent data ( 192.+-30. mb) supersede 40717 5 6 - Subent 40072.007 data ( 192.+-12. mb) - see comment 40717 5 7 authors in Subent 40717.001; 40717 5 8 (COREL,40375008) Data of earlier publication of 40717 5 9 1960 year - 262.+-11. mb at 24.+-3. keV - are in 40717 5 10 Subent 40375008 are not mentioned in 40717 5 11 C,66PARIS,I,455(96),1966 40717 5 12 HISTORY (20231113C) Subent was added. 40717 5 13 ENDBIB 11 0 40717 5 14 NOCOMMON 0 0 40717 5 15 DATA 3 1 40717 5 16 EN DATA DATA-ERR 40717 5 17 KEV MB MB 40717 5 18 24. 192. 30. 40717 5 19 ENDDATA 3 0 40717 5 20 ENDSUBENT 19 0 40717 599999 SUBENT 40717006 20231113 421640717 6 1 BIB 3 7 40717 6 2 REACTION (49-IN-0(N,G),,SIG) 40717 6 3 STATUS (TABLE,,T.S.Belanova+,C,66PARIS,I,455(96),1966) 40717 6 4 Table 2. 40717 6 5 . This Subent data ( 776.+-66. mb) supersede Subent 40717 6 6 40072.010 data ( 778.+-66. mb) - see comment of authors40717 6 7 in Subent 40717.001. 40717 6 8 HISTORY (20231113C) Subent was added. 40717 6 9 ENDBIB 7 0 40717 6 10 NOCOMMON 0 0 40717 6 11 DATA 3 1 40717 6 12 EN DATA DATA-ERR 40717 6 13 KEV MB MB 40717 6 14 24. 776. 66. 40717 6 15 ENDDATA 3 0 40717 6 16 ENDSUBENT 15 0 40717 699999 ENDENTRY 6 0 4071799999999