ENTRY 40152 20221130 421140152 0 1 SUBENT 40152001 20221130 421140152 1 1 BIB 14 45 40152 1 2 TITLE Investigation of the total and inelastic cross 40152 1 3 sections of the interaction of slow and ultracold 40152 1 4 neutrons with tantalum and copper with the aid of 40152 1 5 a gravitation neutron spectrometer 40152 1 6 AUTHOR (A.V.Antonov,A.I.Isakov,I.V.Meshkov,A.D.Perekrestenko, 40152 1 7 A.A.Tikhomirov) 40152 1 8 INSTITUTE (4RUSLEB,4RUSMIF) 40152 1 9 FACILITY (REAC,4RUSMIF) Neutron spectrometer installed at the 40152 1 10 reactor IRT-2000 40152 1 11 REFERENCE (J,SPL,,(11),10,1978) 40152 1 12 Engl.translation of J,KSF,,(11),13,1978. 40152 1 13 (J,KSF,,(11),13,1978) 40152 1 14 REL-REF (I,,A.V.Antonov+,J,KSF,,(10),10,1977) 40152 1 15 Gravitation neutron spectrometer. 40152 1 16 INC-SOURCE (REAC) Integrated intensity 2.2E+4 n/min as measured. 40152 1 17 MONITOR No information 40152 1 18 METHOD (TOF) Flight base is 6 m 40152 1 19 (TRN) Transmission - for total cs. 40152 1 20 CORRECTION Corrections are made on the refraction of neutron 40152 1 21 waves in the sample 40152 1 22 STATUS Data are taken from the reference 40152 1 23 ERR-ANALYS (DATA-ERR) Errors are not specified 40152 1 24 ADD-RES (TRCS) 40152 1 25 1. CU-0(N,TOT) SIG data are given on 40152 1 26 Fig.2 of J,KSF,,(11),13,1978 - for two temperatures 40152 1 27 297 K and 80 K, as dependence from neutron velocity 40152 1 28 4 - 85 m/sec, En from 8.2E-08 eV to 3.7E-05 eV, 40152 1 29 energy resolution 16.%. 40152 1 30 2. TA-181(N,TOT) SIG data are given on 40152 1 31 Fig.2 of J,KSF,,(11),13,1978, at 297 K temperature as 40152 1 32 dependence from neutron velocity 4 - 85 m/sec, 40152 1 33 En from 8.2E-08 eV to 3.7E-05 eV, energy resolution 40152 1 34 16.%. 40152 1 35 Data corrected for refraction of the neutron wave in 40152 1 36 the medium, for multiple reflection of the neutrons 40152 1 37 from boundaries of the sample - 5% for 10 m/sec 40152 1 38 neutrons. 40152 1 39 HISTORY (19900312C) Compiled at the centre - CJD 40152 1 40 (19900920U) Corrections are made 40152 1 41 (20120320A) M.M. Upper -> lower case correction. 40152 1 42 Dates were corrected for 4-digits year. 40152 1 43 BIB and COMMON information was updated. 40152 1 44 (20221130A) Subents 005-006 were deleted - information 40152 1 45 was moved in ADD-RES; dependence from velocity is not 40152 1 46 relevant for compilation. 40152 1 47 ENDBIB 45 0 40152 1 48 NOCOMMON 0 0 40152 1 49 ENDSUBENT 48 0 40152 199999 SUBENT 40152002 20221130 421140152 2 1 BIB 5 9 40152 2 2 REACTION (73-TA-181(N,TOT),,SIG) 40152 2 3 SAMPLE Polycrystalline sample of 99.98 % of chemical purity,40152 2 4 thickness is 3.6E-02 gram/cm2 +-3%. 40152 2 5 At 297 K temperature. 40152 2 6 ANALYSIS Cross section at v=2200 m/sec was derived from measured40152 2 7 c-s at V= 4-85 m/sec using 1/V law. 40152 2 8 REL-REF (A,,D.Hughes+,R,BNL-325,1958) 40152 2 9 Agree with capture cs 21+-1 b given in BNL-325. 40152 2 10 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 40152 2 11 ENDBIB 9 0 40152 2 12 NOCOMMON 0 0 40152 2 13 DATA 3 1 40152 2 14 EN DATA DATA-ERR 40152 2 15 EV B B 40152 2 16 2.53E-02 21.3 1.2 40152 2 17 ENDDATA 3 0 40152 2 18 ENDSUBENT 17 0 40152 299999 SUBENT 40152003 20221130 421140152 3 1 BIB 5 8 40152 3 2 REACTION (29-CU-0(N,TOT),,SIG,,,DERIV) 40152 3 3 SAMPLE Polycrystalline sample of chemical purity 99.99 % , 40152 3 4 thickness is 6.7E-02 gram/cm2 +-3.% . 40152 3 5 ANALYSIS Cross section at v=2200 m/sec was derived from measured40152 3 6 c-s at V= 4-85 m/sec using 1/V law. 40152 3 7 REL-REF (A,,D.Hughes+,R,BNL-325,1958) 40152 3 8 Agree with capture cs 3.77+-0.03 b given in BNL-325. 40152 3 9 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 40152 3 10 ENDBIB 8 0 40152 3 11 NOCOMMON 0 0 40152 3 12 DATA 3 1 40152 3 13 EN DATA DATA-ERR 40152 3 14 EV B B 40152 3 15 2.53E-02 3.77 0.16 40152 3 16 ENDDATA 3 0 40152 3 17 ENDSUBENT 16 0 40152 399999 SUBENT 40152004 20221130 421140152 4 1 BIB 6 10 40152 4 2 REACTION (29-CU-0(N,THS)29-CU-0,,SIG) 40152 4 3 Neutron velocity 10 m/sec. 40152 4 4 ANALYSIS Data were obtained on the basis of differences of 40152 4 5 total cross-sections at different temperatures - 40152 4 6 room and 80 K. 40152 4 7 SAMPLE Polycrystalline sample of chemical purity 99.99 % , 40152 4 8 thickness is 6.7E-02 gram/cm2 40152 4 9 REL-REF (A,21017012,A.Steyerl+,J,ZP,250,166,1972) 40152 4 10 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 40152 4 11 HISTORY (20120320A) M.M. INL -> THS . 40152 4 12 ENDBIB 10 0 40152 4 13 NOCOMMON 0 0 40152 4 14 DATA 3 1 40152 4 15 EN DATA DATA-ERR 40152 4 16 EV B B 40152 4 17 5.23E-07 33. 30. 40152 4 18 ENDDATA 3 0 40152 4 19 ENDSUBENT 18 0 40152 499999 NOSUBENT 40152005 20221130 421140152 5 1 NOSUBENT 40152006 20221130 421140152 6 1 ENDENTRY 6 0 4015299999999