ENTRY 22646 20201217 22972264600000001 SUBENT 22646001 20201217 22972264600100001 BIB 16 61 2264600100002 TITLE Measurement of neutron-induced fission cross sections 2264600100003 for natPb, 208Pb, 197Au, natW, and 181Ta in the 2264600100004 intermediate energy region 2264600100005 AUTHOR (A.V.Prokofiev, P.-U.Renberg, N.Olsson) 2264600100006 INSTITUTE (2SWDUPP) 2264600100007 REFERENCE (R,UU-NF-01#6,2001) 2264600100008 (T,PROKOFIEV,2001) 2264600100009 Dr. thesis presented at to Uppsala Univ. in 2001. 2264600100010 Same data in tables. 2264600100011 REL-REF (O,22321001,V.P.Eismont+,J,PR/C,53,2911,1996) 2264600100012 45,73,96,136,162 MeV 238U,209Bi,208Pb data compiled 2264600100013 (I,,H.Conde+,J,NIM/A,292,121,1990) 2264600100014 Description of the neutron beam facility 2264600100015 (I,,A.N.Smirnov+,J,PTE,,(6),5,1983) 2264600100016 Description of the thin-film breakdown counter (TFBC) 2264600100017 (I,,A.V.Prokofiev+,R,UU-NF-01#5,2001) 2264600100018 Description of the thin-film breakdown counter 2264600100019 FACILITY (CYCLO,2SWDUPP) Gustaf Werner Cyclotron 2264600100020 INC-SOURCE (P-LI7) 200-400 mg/cm2 metallic disk of enriched Li-7. 2264600100021 Proton beam repetition period is 50-70 ns, beam pulse 2264600100022 duration 2-4 ns. 2264600100023 INC-SPECT Unresolved high-energy doublet with a long low-energy 2264600100024 tail 2264600100025 MONITOR 1(1-H-1(N,EL)1-H-1,,SIG) 2264600100026 2(92-U-238(N,F),,SIG) 2264600100027 MONIT-REF 1(,N.Olsson+,C,94GATLIN,1,60,1994) 2264600100028 2(,P.Staples+,J,BAP,40,962,1995) 2264600100029 DETECTOR (TFBC) Thin-film breakdown counter for fission 2264600100030 fragments detection 2264600100031 (TELES,FISCH,TFBC) Fission chambers in an open 2264600100032 non-vacuum arrangement, containing fissile samples 2264600100033 and 'TFBC' in a close 'Mosaic' geometry 2264600100034 (SCIN) Four plastic scintillators for triggering, 2264600100035 particle identification, and neutron time-of-flight 2264600100036 METHOD (TOF) Flight path is 12 m. Time-of-flight method 2264600100037 combined with non-TOF measurements 2264600100038 (STTA) Stack target irradiation 2264600100039 SAMPLE Samples used for calibration of the large- and 2264600100040 small-area TFBC detector consisted of a mixture of 2264600100041 natural uranium and several picograms of Cf-252 2264600100042 uniformly spread throughout the sample. 2264600100043 U-238 samples were prepared by vacuum evaporation (for 2264600100044 238U-F4) and multi-layer smearing (for U-238-nat) 2264600100045 onto stainless steel or aluminum backings. 2264600100046 Relative abundance of the actinides in samples does 2264600100047 not exceed 1.E-5. 2264600100048 CORRECTION Corrected for low-energy neutron contribution 2264600100049 STATUS (APRVD) Prokofiev, 2001-05 2264600100050 (TABLE) Data from report UU-NF-01#6,2001 2264600100051 HISTORY (20011214C) + + Compiled by S.M. + + 2264600100052 (20011222U) Last checking has been done. 2264600100053 (20121227A) SD: BIB update. Ref. on PR/C,53,2911 added.2264600100054 (20130920A) M.M. Ref. C,96KALMAR,2,606,1996 was added, 2264600100055 data for 45 MeV En were added in Subents 002,003,010. 2264600100056 Most data were superseded by Entry 22882 - according 2264600100057 to comment of authors of J,PR/C,70,05460,2004. 2264600100058 ERR-ANALYS was corrected in Subents 002-008. 2264600100059 (20170823U) SD: Ref. in REL-REF corrected 2264600100060 (PTE,6,5,1983 -> PTE,,(6),5,1983). 2264600100061 (20201217D) On. 002-003,009-010 moved to EXFOR 22321. 2264600100062 (20201217A) On. Four pts of 012 moved to EXFOR 22321. 2264600100063 ENDBIB 61 0 2264600100064 NOCOMMON 0 0 2264600100065 ENDSUBENT 64 0 2264600199999 NOSUBENT 22646002 20201217 22972264600200001 NOSUBENT 22646003 20201217 22972264600300001 SUBENT 22646004 20130920 22392264600400001 BIB 4 23 2264600400002 REACTION ((82-PB-0(N,F),,SIG)/(83-BI-209(N,F),,SIG)) 2264600400003 SAMPLE .Thin film metallic lead and bismuth obtained by 2264600400004 vacuum evaporation on 0.1 mm thick aluminium backing 2264600400005 of about 1.1 mm diameter. Average lead sample 2264600400006 thickness is 2.4 milligram/cm2. Average bismuth 2264600400007 sample thicknesses is 1.4 - 2. milligram/cm2 2264600400008 ERR-ANALYS (ERR-T) Total error depending on neutron energy. 2264600400009 Max.total error is 50.% . 2264600400010 (ERR-4,,3.) Max.error from detector calibration 2264600400011 (ERR-5) Error from sample thickness 2264600400012 (ERR-6) Error from counting statistics in the Cf-252 2264600400013 calibration for lead 2264600400014 (ERR-7,,50.) Max.in-beam counting statistics and 2264600400015 subtraction of background for lead 2264600400016 (ERR-8) Error of bismuth sample thickness determination2264600400017 (ERR-9,,2.) Max.error of calculation of relative 2264600400018 efficiency for bismuth 2264600400019 (ERR-10,,1.) Max.error from counting statistics in the 2264600400020 Cf-252 calibration for bismuth 2264600400021 (ERR-11,,20.) Max.in-beam counting statistics and 2264600400022 subtraction of background for bismuth 2264600400023 STATUS (TABLE) Table I of T,PROKOFIEV,2001 . 2264600400024 (SPSDD,22882004) Final data in 22882 . 2264600400025 ENDBIB 23 0 2264600400026 COMMON 3 3 2264600400027 ERR-5 ERR-6 ERR-8 2264600400028 PER-CENT PER-CENT PER-CENT 2264600400029 2.5 1.5 3. 2264600400030 ENDCOMMON 3 0 2264600400031 DATA 3 6 2264600400032 EN DATA ERR-T 2264600400033 MEV NO-DIM NO-DIM 2264600400034 34.6 0.17 0.09 2264600400035 46.1 0.189 0.028 2264600400036 66.4 0.282 0.018 2264600400037 73.8 0.319 0.016 2264600400038 94. 0.402 0.02 2264600400039 133. 0.431 0.021 2264600400040 ENDDATA 8 0 2264600400041 ENDSUBENT 40 0 2264600499999 SUBENT 22646005 20130920 22392264600500001 BIB 4 23 2264600500002 REACTION ((82-PB-208(N,F),,SIG)/(83-BI-209(N,F),,SIG)) 2264600500003 SAMPLE .Small-area Pb-208 samples for the TOF measurements 2264600500004 are of 2.4 mg/cm2 thickness for Pb-208 and 1.4 - 2 2264600500005 mg/cm2 for Bi-209. 2264600500006 Pb-208 content is 98.7%, Pb-206 content is .3 %, 2264600500007 Pb-207 content is 1.0 %, 2264600500008 ERR-ANALYS (ERR-T) Total error depending on neutron energy. 2264600500009 Max.total error is 50.% . 2264600500010 (ERR-4,,3.) Max.error from detector calibration. 2264600500011 (ERR-5) Error from sample thickness 2264600500012 (ERR-6) Error from counting statistics in the Cf-252 2264600500013 calibration 2264600500014 (ERR-7,,20.) Max.in-beam counting statistics and 2264600500015 subtraction of background 2264600500016 (ERR-8) Error of bismuth sample thickness determination2264600500017 (ERR-9,,2.) Max.error of calculation of relative 2264600500018 efficiency for bismuth 2264600500019 (ERR-10,,1.) Max.error from counting statistics in the 2264600500020 Cf-252 calibration for bismuth 2264600500021 (ERR-11,,20.) Max.in-beam counting statistics and 2264600500022 subtraction of background for bismuth 2264600500023 STATUS (TABLE) Table I of T,PROKOFIEV,2001 . 2264600500024 (SPSDD,22882005) Final data in 22882 . 2264600500025 ENDBIB 23 0 2264600500026 COMMON 3 3 2264600500027 ERR-5 ERR-6 ERR-8 2264600500028 PER-CENT PER-CENT PER-CENT 2264600500029 4. 1.5 3. 2264600500030 ENDCOMMON 3 0 2264600500031 DATA 4 6 2264600500032 EN DATA ERR-T DATA-MAX 2264600500033 MEV NO-DIM NO-DIM NO-DIM 2264600500034 34.6 0.079 2264600500035 46.1 0.089 0.019 2264600500036 66.4 0.185 0.015 2264600500037 73.8 0.213 0.013 2264600500038 94. 0.303 0.018 2264600500039 133. 0.300 0.019 2264600500040 ENDDATA 8 0 2264600500041 ENDSUBENT 40 0 2264600599999 SUBENT 22646006 20130920 22392264600600001 BIB 4 23 2264600600002 REACTION ((79-AU-197(N,F),,SIG)/(83-BI-209(N,F),,SIG)) 2264600600003 SAMPLE .Metallic Au-197 samples prepared by vacuum evaporation2264600600004 on 0.1 mm thick, 1.1 cm diameter aluminium backing 2264600600005 average sample thickness 2.8 mg/cm2 for Au-197. 2264600600006 .Similarly prepared Bi samples have thicknesses 2264600600007 1.4-2.0 mg/cm2 2264600600008 ERR-ANALYS (ERR-T) Total error depending on neutron energy. 2264600600009 Max.total error is 30.% . 2264600600010 (ERR-4,,6.) Max.error from detector calibration . 2264600600011 (ERR-5) Error from sample thickness 2264600600012 (ERR-6) Error from counting statistics in the Cf-252 2264600600013 calibration 2264600600014 (ERR-7,,25.) Max.in-beam counting statistics and 2264600600015 subtraction of background 2264600600016 (ERR-8) Error of bismuth sample thickness determination2264600600017 (ERR-9,,2.) Max.error of calculation of relative 2264600600018 efficiency for bismuth 2264600600019 (ERR-10,,1.) Max.error from counting statistics in the 2264600600020 Cf-252 calibration for bismuth 2264600600021 (ERR-11,,20.) Max.in-beam counting statistics and 2264600600022 subtraction of background for bismuth 2264600600023 STATUS (TABLE) Table I of T,PROKOFIEV,2001 . 2264600600024 (SPSDD,22882006) Final data in 22882 . 2264600600025 ENDBIB 23 0 2264600600026 COMMON 3 3 2264600600027 ERR-5 ERR-6 ERR-8 2264600600028 PER-CENT PER-CENT PER-CENT 2264600600029 2.5 1.5 3. 2264600600030 ENDCOMMON 3 0 2264600600031 DATA 4 6 2264600600032 EN DATA ERR-T DATA-MAX 2264600600033 MEV NO-DIM NO-DIM NO-DIM 2264600600034 34.6 0.021 2264600600035 46.1 0.053 0.015 2264600600036 66.4 0.105 0.01 2264600600037 73.8 0.118 0.009 2264600600038 94. 0.151 0.011 2264600600039 133. 0.202 0.015 2264600600040 ENDDATA 8 0 2264600600041 ENDSUBENT 40 0 2264600699999 SUBENT 22646007 20130920 22392264600700001 BIB 4 23 2264600700002 REACTION ((74-W-0(N,F),,SIG)/(83-BI-209(N,F),,SIG)) 2264600700003 SAMPLE .Metallic tungsten samples prepared by vacuum 2264600700004 evaporation on 0.1 mm thick, 1.1 cm diameter aluminium2264600700005 backing, average sample thickness 2.0 mg/cm2 for W-nat2264600700006 .Similarly prepared Bi samples have thicknesses 2264600700007 1.4-2.0 mg/cm2 2264600700008 ERR-ANALYS (ERR-T) Total error depending on neutron energy. 2264600700009 Max.total error is 40.% . 2264600700010 (ERR-4,,12.) Max.error from detector calibration. 2264600700011 (ERR-5) Error from sample thickness 2264600700012 (ERR-6) Error from counting statistics in the Cf-252 2264600700013 calibration 2264600700014 (ERR-7,,40.) Max.in-beam counting statistics and 2264600700015 subtraction of background 2264600700016 (ERR-8) Error of bismuth sample thickness determination2264600700017 (ERR-9,,2.) Max.error of calculation of relative 2264600700018 efficiency for bismuth 2264600700019 (ERR-10,,1.) Max.error from counting statistics in the 2264600700020 Cf-252 calibration for bismuth 2264600700021 (ERR-11,,20.) Max.in-beam counting statistics and 2264600700022 subtraction of background for bismuth 2264600700023 STATUS (TABLE) Table I of T,PROKOFIEV,2001 . 2264600700024 (SPSDD,22882007) Final data in 22882 . 2264600700025 ENDBIB 23 0 2264600700026 COMMON 3 3 2264600700027 ERR-5 ERR-6 ERR-8 2264600700028 PER-CENT PER-CENT PER-CENT 2264600700029 4. 2. 3. 2264600700030 ENDCOMMON 3 0 2264600700031 DATA 4 5 2264600700032 EN DATA ERR-T DATA-MAX 2264600700033 MEV NO-DIM NO-DIM NO-DIM 2264600700034 34.6 0.039 2264600700035 66.4 2.3E-03 2264600700036 73.8 4.2 E-03 8. E-04 2264600700037 94. 8.0 E-03 1.0E-03 2264600700038 133. 1.63E-02 2.2E-03 2264600700039 ENDDATA 7 0 2264600700040 ENDSUBENT 39 0 2264600799999 SUBENT 22646008 20130920 22392264600800001 BIB 4 24 2264600800002 REACTION ((73-TA-181(N,F),,SIG)/(83-BI-209(N,F),,SIG)) 2264600800003 SAMPLE .Metallic tantalum samples prepared by magnetic 2264600800004 evaporation on 0.1 mm thick, 1.1 cm diameter alumin. 2264600800005 backing, average sample thicknesses 0.5-1.2 mg/cm2 2264600800006 .Metallic bismuth samples prepared by vacuum evap. 2264600800007 on 0.1 mm thick, 1.1 cm diameter aluminium backing, 2264600800008 have thicknesses 1.4-2.0 mg/cm2 2264600800009 ERR-ANALYS (ERR-T) Total error depending on neutron energy. 2264600800010 Max.total error is 35.% . 2264600800011 (ERR-4,,6.) Max.error from detector calibration . 2264600800012 (ERR-5) Error from sample thickness 2264600800013 (ERR-6) Error from counting statistics in the Cf-252 2264600800014 calibration 2264600800015 (ERR-7,,30.) Max.in-beam counting statistics and 2264600800016 subtraction of background 2264600800017 (ERR-8) Error of bismuth sample thickness determination2264600800018 (ERR-9,,2.) Max.error of calculation of relative 2264600800019 efficiency for bismuth 2264600800020 (ERR-10,,1.) Max.error from counting statistics in the 2264600800021 Cf-252 calibration for bismuth 2264600800022 (ERR-11,,20.) Max.in-beam counting statistics and 2264600800023 subtraction of background for bismuth 2264600800024 STATUS (TABLE) Table I of T,PROKOFIEV,2001 . 2264600800025 (SPSDD,22882008) Final data in 22882 . 2264600800026 ENDBIB 24 0 2264600800027 COMMON 3 3 2264600800028 ERR-5 ERR-6 ERR-8 2264600800029 PER-CENT PER-CENT PER-CENT 2264600800030 7. 2. 3. 2264600800031 ENDCOMMON 3 0 2264600800032 DATA 4 4 2264600800033 EN DATA ERR-T DATA-MAX 2264600800034 MEV NO-DIM NO-DIM NO-DIM 2264600800035 34.6 0.041 2264600800036 73.8 1.4 E-03 4.E-04 2264600800037 94. 3.8 E-03 5.E-04 2264600800038 133. 1.15E-02 2.0E-03 2264600800039 ENDDATA 6 0 2264600800040 ENDSUBENT 39 0 2264600899999 NOSUBENT 22646009 20201217 22972264600900001 NOSUBENT 22646010 20201217 22972264601000001 SUBENT 22646011 20130920 22392264601100001 BIB 2 4 2264601100002 REACTION (82-PB-0(N,F),,SIG) 2264601100003 STATUS (TABLE) Table 2 of T,PROKOFIEV,2001 . 2264601100004 (DEP,22646004) 2264601100005 (SPSDD,22882009) Final data in 22882 . 2264601100006 ENDBIB 4 0 2264601100007 NOCOMMON 0 0 2264601100008 DATA 3 6 2264601100009 EN DATA ERR-T 2264601100010 MEV MB MB 2264601100011 34.6 0.027 0.014 2264601100012 46.1 0.37 0.06 2264601100013 66.4 3.45 0.22 2264601100014 73.8 5.08 0.25 2264601100015 94. 10.3 0.5 2264601100016 133. 17.7 0.9 2264601100017 ENDDATA 8 0 2264601100018 ENDSUBENT 17 0 2264601199999 SUBENT 22646012 20201217 22972264601200001 BIB 4 14 2264601200002 REACTION (82-PB-208(N,F),,SIG) 2264601200003 ERR-ANALYS (ERR-T) Total uncertainty excluding 209Bi(n,f) cross 2264601200004 section uncertainty, but including 2264601200005 (ERR-1,,1.) fraction of peak fission events relative 2264601200006 to one for 209Bi (<1%)2264601200007 (ERR-2) sample thickness determination (4%)2264601200008 (ERR-3,2.5,3.) relative efficiency calculation (2.5-3%)2264601200009 (ERR-4) statistics in Cf calibration (1.5%)2264601200010 (ERR-5,1.,20.) in-beam counting statistics and 2264601200011 subtraction of background (1-20%)2264601200012 STATUS (TABLE) Table 5 of Report UU-NF 01#6 2264601200013 (DEP,22646005) 208Pb(n,f)/209Bi(n,f) ratio 2264601200014 (SPSDD,22882010) Final data in 22882 . 2264601200015 HISTORY (20201217A) On. 73,96,162 MeV data moved to EXFOR 223212264601200016 ENDBIB 14 0 2264601200017 COMMON 2 3 2264601200018 ERR-2 ERR-4 2264601200019 PER-CENT PER-CENT 2264601200020 4. 1.5 2264601200021 ENDCOMMON 3 0 2264601200022 DATA 4 6 2264601200023 EN DATA ERR-T DATA-MAX 2264601200024 MEV MB MB MB 2264601200025 34.6 0.013 2264601200026 46.1 0.17 0.04 2264601200027 66.4 2.26 0.18 2264601200028 73.8 3.39 0.20 2264601200029 94.0 7.8 0.5 2264601200030 133.0 12.3 0.8 2264601200031 ENDDATA 8 0 2264601200032 ENDSUBENT 31 0 2264601299999 SUBENT 22646013 20130920 22392264601300001 BIB 2 4 2264601300002 REACTION (79-AU-197(N,F),,SIG) 2264601300003 STATUS (TABLE) Table 2 of T,PROKOFIEV,2001 . 2264601300004 (DEP,22646006) 2264601300005 (SPSDD,22882011) Final data in 22882 . 2264601300006 ENDBIB 4 0 2264601300007 NOCOMMON 0 0 2264601300008 DATA 4 6 2264601300009 EN DATA ERR-T DATA-MAX 2264601300010 MEV MB MB MB 2264601300011 34.6 3.3E-03 2264601300012 46.1 0.102 0.029 2264601300013 66.4 1.28 0.12 2264601300014 73.8 1.88 0.14 2264601300015 94. 3.9 0.3 2264601300016 133. 8.3 0.6 2264601300017 ENDDATA 8 0 2264601300018 ENDSUBENT 17 0 2264601399999 SUBENT 22646014 20130920 22392264601400001 BIB 2 4 2264601400002 REACTION (74-W-0(N,F),,SIG) 2264601400003 STATUS (TABLE) Table 2 of T,PROKOFIEV,2001 . 2264601400004 (DEP,22646007) 2264601400005 (SPSDD,22882012) Final data in 22882 . 2264601400006 ENDBIB 4 0 2264601400007 NOCOMMON 0 0 2264601400008 DATA 4 5 2264601400009 EN DATA ERR-T DATA-MAX 2264601400010 MEV MB MB MB 2264601400011 34.6 6.3E-03 2264601400012 66.4 3.2E-02 2264601400013 73.8 0.067 0.013 2264601400014 94. 0.205 0.025 2264601400015 133. 0.67 0.09 2264601400016 ENDDATA 7 0 2264601400017 ENDSUBENT 16 0 2264601499999 SUBENT 22646015 20130920 22392264601500001 BIB 2 4 2264601500002 REACTION (73-TA-181(N,F),,SIG) 2264601500003 STATUS (TABLE) Table 2 of T,PROKOFIEV,2001 . 2264601500004 (DEP,22646008) 2264601500005 (SPSDD,22882013) Final data in 22882 . 2264601500006 ENDBIB 4 0 2264601500007 NOCOMMON 0 0 2264601500008 DATA 4 4 2264601500009 EN DATA ERR-T DATA-MAX 2264601500010 MEV MB MB MB 2264601500011 34.6 6.5E-03 2264601500012 73.8 0.022 0.007 2264601500013 94. 0.098 0.012 2264601500014 133. 0.47 0.08 2264601500015 ENDDATA 6 0 2264601500016 ENDSUBENT 15 0 2264601599999 ENDENTRY 15 0 2264699999999