ENTRY 41348 20090929 41484134800000001 SUBENT 41348001 20090929 41484134800100001 BIB 11 29 4134800100002 TITLE Precise measurement of sigma-tot for Pb-208 4134800100003 AUTHOR (T.L.Enik, L.V.Mitsyna, V.G.Nikolenko, A.B.Popov, 4134800100004 G.S.Samosvat, P.Prokofjevs, A.V.Murzin, 4134800100005 W.Waschkowski) 4134800100006 INSTITUTE (4ZZZDUB) Enik, Mitsyna, Nikolenko, Popov, Samosvat 4134800100007 (4LATIFL) Prokofjevs 4134800100008 (4UKRIJI) Murzin 4134800100009 (2GERMUN) Waschkovski 4134800100010 REFERENCE ((S,ISINN-3,238,1995)=(S,JINR-E3-95-307,238,1995)) 4134800100011 REL-REF (R,,S.F.Mughabghab+,B,NEUT.CS 1B,,1984) 4134800100012 (N,,L.Koester+,J,ZP/A,329,229,1988) Method of analysis4134800100013 (N,,L.V.Mitsyna+,R,JINR-P3-91-521,1991) Method of 4134800100014 analysis. 4134800100015 FACILITY (REAC,4ZZZDUB) IBR-30 fast pulse reactor in booster 4134800100016 mode 4134800100017 METHOD (TOF) Flight path is 70 m 4134800100018 (TRN) Transmission measurements in 21-23 hour. 4134800100019 SAMPLE Metallic cylinder 15 mm diameter, 20.8 mm height, 4134800100020 purity 99.98%, thickness 0.068717+-0.000033 at/b, 4134800100021 Pb-208 enrichment 98.3 %. 4134800100022 DETECTOR (PROPC) 20 cm long He-3 counter at 10 atm pressure 4134800100023 CORRECTION Corrections were made for neutron spectrum distortion 4134800100024 with the help of black neutron filters. 4134800100025 Dead time correction, background subtraction , 4134800100026 normalization to monitor readings. 4134800100027 HISTORY (20000211C) + + Compiled at the Centre - CJD + + 4134800100028 (20000211U) Last checking has been done. 4134800100029 (20091029U) M.M. Reference S,ISINN-3,238,1995 was added4134800100030 BIB information was added. 4134800100031 ENDBIB 29 0 4134800100032 NOCOMMON 0 0 4134800100033 ENDSUBENT 32 0 4134800199999 SUBENT 41348002 20090929 41484134800200001 BIB 5 8 4134800200002 REACTION (82-PB-208(N,TOT),,SIG) 4134800200003 CORRECTION For air instead of vacuum at the sample seat in the 4134800200004 beam ( +(13-9) mb for 1eV-24 keV). 4134800200005 For known impurities ( -(1-3)mb) . 4134800200006 ERR-ANALYS (ERR-S) Errors are statistical 4134800200007 STATUS (PRELM) Assigned by Authors 4134800200008 (TABLE) Table 1 of S,ISINN-3,238,1995 . 4134800200009 HISTORY (20081028A) 82-PB-0 -> 82-PB-208 in REACTION. 4134800200010 ENDBIB 8 0 4134800200011 NOCOMMON 0 0 4134800200012 DATA 3 13 4134800200013 EN DATA ERR-S 4134800200014 EV B B 4134800200015 1.76 11.471 0.005 4134800200016 2.11 11.474 0.003 4134800200017 2.66 11.48 0.003 4134800200018 3.44 11.492 0.003 4134800200019 6.4 11.493 0.004 4134800200020 9.3 11.504 0.003 4134800200021 13.8 11.515 0.003 4134800200022 26.7 11.513 0.004 4134800200023 56.2 11.516 0.004 4134800200024 4000. 11.474 0.031 4134800200025 5140. 11.456 0.024 4134800200026 6530. 11.4 0.025 4134800200027 24000. 11.031 0.018 4134800200028 ENDDATA 15 0 4134800200029 ENDSUBENT 28 0 4134800299999 SUBENT 41348003 20090929 41484134800300001 BIB 4 7 4134800300002 REACTION (82-PB-208(N,SCT)82-PB-208,,SIG) 4134800300003 ANALYSIS .Obtained from the measured total sigma by subtracting 4134800300004 absorption, Schwinger and solid state scattering cs. 4134800300005 STATUS (PRELM) Assigned by Authors 4134800300006 (DEP,41348002) 4134800300007 (TABLE) Table 1 of S,ISINN-3,238,1995 . 4134800300008 HISTORY (20081028A) 82-PB-0 -> 82-PB-208 in REACTION. 4134800300009 ENDBIB 7 0 4134800300010 NOCOMMON 0 0 4134800300011 DATA 2 13 4134800300012 EN DATA 4134800300013 EV B 4134800300014 1.76 11.471 4134800300015 2.11 11.474 4134800300016 2.66 11.479 4134800300017 3.44 11.49 4134800300018 6.4 11.489 4134800300019 9.3 11.499 4134800300020 13.8 11.509 4134800300021 26.7 11.506 4134800300022 56.2 11.507 4134800300023 4000. 11.458 4134800300024 5140. 11.439 4134800300025 6530. 11.383 4134800300026 24000. 11.012 4134800300027 ENDDATA 15 0 4134800300028 ENDSUBENT 27 0 4134800399999 SUBENT 41348004 20090929 41484134800400001 BIB 4 8 4134800400002 REACTION (82-PB-208(N,EL)82-PB-208,POT,SIG) 4134800400003 ANALYSIS .Potential cross section obtained from scattering one 4134800400004 by subtracting the total scattering of admixture 4134800400005 isotopes and 208Pb s-wave resonance effect . 4134800400006 ERR-ANALYS (ERR-S) Errors are statistical 4134800400007 STATUS (PRELM) Assigned by Authors 4134800400008 (DEP,41348003) 4134800400009 (TABLE) Table 1 of S,ISINN-3,238,1995 . 4134800400010 ENDBIB 8 0 4134800400011 NOCOMMON 0 0 4134800400012 DATA 3 13 4134800400013 EN DATA ERR-S 4134800400014 EV B B 4134800400015 1.76 12.450 0.005 4134800400016 2.11 12.452 0.003 4134800400017 2.66 12.458 0.003 4134800400018 3.44 12.469 0.003 4134800400019 6.4 12.468 0.004 4134800400020 9.3 12.479 0.003 4134800400021 13.8 12.489 0.003 4134800400022 26.7 12.486 0.004 4134800400023 56.2 12.488 0.004 4134800400024 4000. 12.436 0.031 4134800400025 5140. 12.416 0.024 4134800400026 6530. 12.358 0.025 4134800400027 24000. 11.972 0.018 4134800400028 ENDDATA 15 0 4134800400029 ENDSUBENT 28 0 4134800499999 ENDENTRY 4 0 4134899999999