ENTRY 40152 20120320 4015200000001 SUBENT 40152001 20120320 20121214 4015200100001 BIB 13 27 4015200100002 TITLE Investigation of total and inelastic cross-sections 4015200100003 in the interactions of the supercold neutrons with 4015200100004 tantalum and copper with the help of gravitation 4015200100005 neutron spectrometer 4015200100006 AUTHOR (A.V.Antonov,A.I.Isakov,I.V.Meshkov,A.D.Perekrestenko, 4015200100007 A.A.Tikhomirov) 4015200100008 INSTITUTE (4RUSLEB,4RUSMIF) 4015200100009 FACILITY (REAC,4RUSMIF) Neutron spectrometer installed at the 4015200100010 reactor IRT-2000 4015200100011 REFERENCE (J,KSF,,(11),13,1978) 4015200100012 (J,SPL,,(11),10,1978) 4015200100013 Engl.translation of J,KSF,,(11),13,1978. 4015200100014 REL-REF (I,,A.V.Antonov+,J,KSF,,(10),10,1977) 4015200100015 Gravitation neutron spectrometer. 4015200100016 INC-SOURCE (REAC) Integrated intensity 2.2E+4 n/min as measured. 4015200100017 MONITOR No information 4015200100018 METHOD (TOF) Flight base is 6 m 4015200100019 (TRN) Transmission - for total cs. 4015200100020 CORRECTION Corrections are made on the refraction of neutron 4015200100021 waves in the sample 4015200100022 STATUS Data are taken from the reference 4015200100023 ERR-ANALYS (DATA-ERR) Errors are not specified 4015200100024 HISTORY (19900312C) Compiled at the centre - CJD 4015200100025 (19900920U) Corrections are made 4015200100026 (20120320A) M.M. Upper -> lower case correction. 4015200100027 Dates were corrected for 4-digits year. 4015200100028 BIB and COMMON information was updated. 4015200100029 ENDBIB 27 0 4015200100030 NOCOMMON 0 0 4015200100031 ENDSUBENT 30 0 4015200199999 SUBENT 40152002 20120320 20121214 4015200200001 BIB 5 10 4015200200002 REACTION (73-TA-181(N,TOT),,SIG) 4015200200003 SAMPLE Polycrystalline sample of 99.98 % of chemical purity,4015200200004 thickness is 3.6E-02 gram/cm2 +-3%. 4015200200005 At 297 K temperature. 4015200200006 ANALYSIS Cross section at v=2200 m/sec was derived from measured4015200200007 c-s at V= 4-85 m/sec using 1/V law. 4015200200008 REL-REF (A,,D.Hughes+,R,BNL-325,1958) 4015200200009 Agree with capture cs 21+-1 b given in BNL-325. 4015200200010 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 4015200200011 (DEP,40152006) 4015200200012 ENDBIB 10 0 4015200200013 NOCOMMON 0 0 4015200200014 DATA 3 1 4015200200015 EN DATA DATA-ERR 4015200200016 EV B B 4015200200017 2.53E-02 21.3 1.2 4015200200018 ENDDATA 3 0 4015200200019 ENDSUBENT 18 0 4015200299999 SUBENT 40152003 20120320 20121214 4015200300001 BIB 5 9 4015200300002 REACTION (29-CU-0(N,TOT),,SIG,,,DERIV) 4015200300003 SAMPLE Polycrystalline sample of chemical purity 99.99 % , 4015200300004 thickness is 6.7E-02 gram/cm2 +-3.% . 4015200300005 ANALYSIS Cross section at v=2200 m/sec was derived from measured4015200300006 c-s at V= 4-85 m/sec using 1/V law. 4015200300007 REL-REF (A,,D.Hughes+,R,BNL-325,1958) 4015200300008 Agree with capture cs 3.77+-0.03 b given in BNL-325. 4015200300009 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 4015200300010 (DEP,40152005) 4015200300011 ENDBIB 9 0 4015200300012 NOCOMMON 0 0 4015200300013 DATA 3 1 4015200300014 EN DATA DATA-ERR 4015200300015 EV B B 4015200300016 2.53E-02 3.77E-0 1.6E-01 4015200300017 ENDDATA 3 0 4015200300018 ENDSUBENT 17 0 4015200399999 SUBENT 40152004 20120320 20121214 4015200400001 BIB 6 9 4015200400002 REACTION (29-CU-0(N,THS)29-CU-0,,SIG) 4015200400003 ANALYSIS Data were obtained on the basis of differences of 4015200400004 total cross-sections at different temperatures - 4015200400005 room and 80 K. 4015200400006 SAMPLE Polycrystalline sample of chemical purity 99.99 % , 4015200400007 thickness is 6.7E-02 gram/cm2 4015200400008 REL-REF (A,21017012,A.Steyerl+,J,ZP,250,166,1972) 4015200400009 STATUS (TABLE) Text of J,KSF,,(11),13,1978 . 4015200400010 HISTORY (20120320A) M.M. INL -> THS . 4015200400011 ENDBIB 9 0 4015200400012 NOCOMMON 0 0 4015200400013 DATA 3 1 4015200400014 EN DATA DATA-ERR 4015200400015 EV B B 4015200400016 5.23E-07 3.3E+01 3.0E+01 4015200400017 ENDDATA 3 0 4015200400018 ENDSUBENT 17 0 4015200499999 SUBENT 40152005 20120320 20121214 4015200500001 BIB 4 8 4015200500002 REACTION (29-CU-0(N,TOT),,SIG) 4015200500003 STATUS (UNOBT) Data are not available, only curves given - 4015200500004 Fig.2 of J,KSF,,(11),13,1978 - for two temperatures 4015200500005 297 K and 80 K, as dependence from neutron velocity. 4015200500006 COMMENT CS-TOT measured for neutron velocities 4 - 85 m/sec 4015200500007 CORRECTION For refraction of the neutron wave in the medium. 4015200500008 For multiple reflection of the neutrons from boundaries4015200500009 of the sample - 5% for 10 m/sec neutrons. 4015200500010 ENDBIB 8 0 4015200500011 COMMON 3 3 4015200500012 EN-MIN EN-MAX EN-RSL 4015200500013 EV EV PER-CENT 4015200500014 8.2E-08 3.7E-05 16. 4015200500015 ENDCOMMON 3 0 4015200500016 NODATA 0 0 4015200500017 ENDSUBENT 16 0 4015200599999 SUBENT 40152006 20120320 20121214 4015200600001 BIB 4 8 4015200600002 REACTION (73-TA-181(N,TOT),,SIG) 4015200600003 STATUS (UNOBT) Data are not available, only curves given on 4015200600004 Fig.2 of J,KSF,,(11),13,1978, at 297 K temperature as 4015200600005 dependence from neutron velocity. 4015200600006 COMMENT CS-TOT measured for neutron velocities 4 - 85 m/sec 4015200600007 CORRECTION For refraction of the neutron wave in the medium. 4015200600008 For multiple reflection of the neutrons from boundaries4015200600009 of the sample. 4015200600010 ENDBIB 8 0 4015200600011 COMMON 3 3 4015200600012 EN-MIN EN-MAX EN-RSL 4015200600013 EV EV PER-CENT 4015200600014 8.2E-08 3.7E-05 16. 4015200600015 ENDCOMMON 3 0 4015200600016 NODATA 0 0 4015200600017 ENDSUBENT 16 0 4015200699999 ENDENTRY 6 0 4015299999999