ENTRY 41128 20091124 41484112800000001 SUBENT 41128001 20091124 41484112800100001 BIB 12 32 4112800100002 INSTITUTE (4RUSNIR) 4112800100003 REFERENCE (J,AE,74,(1),72,199301) Data table is given 4112800100004 (J,AE/T,74,69,1993) 4112800100005 #doi:10.1007/BF00750979 4112800100006 AUTHOR (V.A.Anufriev, V.I.Sivukha) 4112800100007 TITLE Total neutron cross-section measurement for Cf-250 4112800100008 and Cf-251. 4112800100009 FACILITY (REAC) Reactor SM-2 4112800100010 SAMPLE Two samples obtained by irradiation in the SM-2 4112800100011 reactor of two berklium targets. 4112800100012 -- First sample - total Cf mass is 412 +- 3 microgram 4112800100013 Cf-249 content 10.52 +- 0.02 %,thickness 13.79 g/m**2 4112800100014 Cf-250 content 79.64 +- 0.02 %,thickness 104.5 g/m**2 4112800100015 Cf-251 content 8.82 +- 0.02 %,thickness 11.57 g/m**2 4112800100016 Cf-252 content 1.03 +- 0.01 %,thickness 1.35 g/m**2 4112800100017 -- Second sample - total Cf mass 1033 +- 70 microgram 4112800100018 Cf-249 content 6.28 +- 0.04 %, thickness 19.8 g/m**2 4112800100019 Cf-250 content 76.28 +-0.08 %, thickness 240.97 g/m**24112800100020 Cf-251 content 13.9 +-0.08 %, thickness 43.9 g/m**2 4112800100021 Cf-252 content 3.67 +-0.02 %, thickness 11.6 g/m**2 4112800100022 METHOD (TOF) Flight base is 91.7 m, resolution 110 nsec/m , 4112800100023 rotation frequency is 3300 1/min 4112800100024 (TRN) Transmission spectra wre measured. 4112800100025 DETECTOR (PROPC) Battery of 80 He3-filled counters 4112800100026 MONITOR Absolute measurements 4112800100027 ERR-ANALYS (DATA-ERR) Errors are not specified, probably total 4112800100028 STATUS Data are taken from the reference 4112800100029 HISTORY (19930719C) + + Compiled at the centre - CJD + + 4112800100030 (20010311A) DATE is corrected 4112800100031 (20091124A) BIB information was added. 4112800100032 Subents 011, 012 were added. 4112800100033 Free text was corrected to be human-readable. 4112800100034 ENDBIB 32 0 4112800100035 COMMON 1 3 4112800100036 EN-RSL 4112800100037 NSEC/M 4112800100038 110. 4112800100039 ENDCOMMON 3 0 4112800100040 ENDSUBENT 39 0 4112800199999 SUBENT 41128002 20091124 41484112800200001 BIB 6 12 4112800200002 REACTION 1(98-CF-250(N,0),,EN) 4112800200003 2(98-CF-250(N,TOT),,WID) 4112800200004 3(98-CF-250(N,G),,WID) 4112800200005 4(98-CF-250(N,EL),,WID,,2G) 4112800200006 5(98-CF-250(N,EL),,WID/RED,,G) 4112800200007 DECAY-DATA (98-CF-250,13.1YR) 4112800200008 ANALYSIS (SHAPE) 4112800200009 (SLA) Single level Breit-Wigner analysis. 4112800200010 FLAG (1.) All widths of resonance are given on the basis 4112800200011 of statistical evaluation . 4112800200012 STATUS (TABLE) Table 2 of J,AE,74,(1),72,1993 . 4112800200013 HISTORY (20091124A) DATA-ERR -> DATA-ERR 3 . 4112800200014 ENDBIB 12 0 4112800200015 NOCOMMON 0 0 4112800200016 DATA 10 4 4112800200017 DATA 1DATA-ERR 1DATA 2DATA-ERR 2DATA 3DATA-ERR 34112800200018 DATA 4DATA-ERR 4DATA 5FLAG 4112800200019 EV EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 4112800200020 MILLI-EV MILLI-EV MILLI-EV NO-DIM 4112800200021 -0.08 40. 40. 4112800200022 0.08 1. 4112800200023 0.553 0.001 38.7 0.7 36. 1. 4112800200024 2.05 0.3 4112800200025 6.847 0.012 46. 5. 45. 5. 4112800200026 0.85 0.1 4112800200027 8.225 0.003 57. 7. 43. 7. 4112800200028 14.3 0.5 4112800200029 ENDDATA 12 0 4112800200030 ENDSUBENT 29 0 4112800299999 SUBENT 41128003 20091124 41484112800300001 BIB 5 12 4112800300002 REACTION 1(98-CF-251(N,0),,EN) 4112800300003 2(98-CF-251(N,TOT),,WID) 4112800300004 3(98-CF-251(N,G),,WID) 4112800300005 4(98-CF-251(N,F),,WID) 4112800300006 5(98-CF-251(N,EL),,WID,,2G) 4112800300007 6(98-CF-251(N,EL),,WID/RED,,G) 4112800300008 DECAY-DATA (98-CF-251,898.YR) 4112800300009 ANALYSIS (SHAPE) 4112800300010 (SLA) Single level Breit-Wigner analysis. 4112800300011 FLAG (1.) All widths of resonance are given on the basis 4112800300012 of statistical evaluation 4112800300013 STATUS (TABLE) Table 2 of J,AE,74,(1),72,1993 . 4112800300014 ENDBIB 12 0 4112800300015 NOCOMMON 0 0 4112800300016 DATA 12 4 4112800300017 DATA 1DATA-ERR 1DATA 2DATA-ERR 2DATA 3DATA-ERR 34112800300018 DATA 4DATA-ERR 4DATA 5DATA-ERR 5DATA 6FLAG 4112800300019 EV EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 4112800300020 MILLI-EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV NO-DIM 4112800300021 -0.038 100. 40. 4112800300022 60. 0.084 1. 4112800300023 0.389 0.01 104. 6. 42. 5. 4112800300024 60. 10. 1.45 0.1 4112800300025 41.2 3. 100. 4112800300026 19. 4. 1. 4112800300027 44.8 1. 100. 4112800300028 36. 12. 1. 4112800300029 ENDDATA 12 0 4112800300030 ENDSUBENT 29 0 4112800399999 SUBENT 41128004 20091124 41484112800400001 BIB 3 4 4112800400002 REACTION (98-CF-250(N,G)98-CF-251,,SIG,,,DERIV) 4112800400003 ANALYSIS C-S was derived from measured resonance levels. 4112800400004 STATUS (DEP,41128002) 4112800400005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800400006 ENDBIB 4 0 4112800400007 NOCOMMON 0 0 4112800400008 DATA 3 1 4112800400009 EN DATA DATA-ERR 4112800400010 EV B B 4112800400011 2.53E-02 700. 100. 4112800400012 ENDDATA 3 0 4112800400013 ENDSUBENT 12 0 4112800499999 SUBENT 41128005 20091124 41484112800500001 BIB 3 4 4112800500002 REACTION (98-CF-250(N,G)98-CF-251,,RI,,,DERIV) 4112800500003 ANALYSIS RI was derived from measured resonance levels. 4112800500004 STATUS (DEP,41128002) 4112800500005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800500006 ENDBIB 4 0 4112800500007 NOCOMMON 0 0 4112800500008 DATA 3 2 4112800500009 EN-MIN DATA DATA-ERR 4112800500010 EV B B 4112800500011 0.3 16100. 2000. 4112800500012 0.5 13500. 2000. 4112800500013 ENDDATA 4 0 4112800500014 ENDSUBENT 13 0 4112800599999 SUBENT 41128006 20091124 41484112800600001 BIB 3 4 4112800600002 REACTION (98-CF-251(N,G)98-CF-252,,SIG,,,DERIV) 4112800600003 ANALYSIS C-S was derived from measured resonance levels. 4112800600004 STATUS (DEP,41128003) 4112800600005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800600006 ENDBIB 4 0 4112800600007 NOCOMMON 0 0 4112800600008 DATA 3 1 4112800600009 EN DATA DATA-ERR 4112800600010 EV B B 4112800600011 2.53E-02 1140. 300. 4112800600012 ENDDATA 3 0 4112800600013 ENDSUBENT 12 0 4112800699999 SUBENT 41128007 20091124 41484112800700001 BIB 3 4 4112800700002 REACTION (98-CF-251(N,F),,SIG,,,DERIV) 4112800700003 ANALYSIS C-S was derived from measured resonance levels. 4112800700004 STATUS (DEP,41128003) 4112800700005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800700006 ENDBIB 4 0 4112800700007 NOCOMMON 0 0 4112800700008 DATA 3 1 4112800700009 EN DATA DATA-ERR 4112800700010 EV B B 4112800700011 2.53E-02 2150. 300. 4112800700012 ENDDATA 3 0 4112800700013 ENDSUBENT 12 0 4112800799999 SUBENT 41128008 20091124 41484112800800001 BIB 3 4 4112800800002 REACTION (98-CF-251(N,G)98-CF-252,,RI,,,DERIV) 4112800800003 ANALYSIS RI was derived from measured resonance levels. 4112800800004 STATUS (DEP,41128003) 4112800800005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800800006 ENDBIB 4 0 4112800800007 NOCOMMON 0 0 4112800800008 DATA 3 2 4112800800009 EN-MIN DATA DATA-ERR 4112800800010 EV B B 4112800800011 0.3 6200. 1000. 4112800800012 0.5 780. 120. 4112800800013 ENDDATA 4 0 4112800800014 ENDSUBENT 13 0 4112800899999 SUBENT 41128009 20091124 41484112800900001 BIB 3 4 4112800900002 REACTION (98-CF-251(N,F),,RI,,,DERIV) 4112800900003 ANALYSIS RI was derived from measured resonance levels. 4112800900004 STATUS (DEP,41128003) 4112800900005 (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112800900006 ENDBIB 4 0 4112800900007 NOCOMMON 0 0 4112800900008 DATA 3 2 4112800900009 EN-MIN DATA DATA-ERR 4112800900010 EV B B 4112800900011 0.3 9300. 1200. 4112800900012 0.5 1500. 200. 4112800900013 ENDDATA 4 0 4112800900014 ENDSUBENT 13 0 4112800999999 SUBENT 41128010 20091124 41484112801000001 BIB 2 3 4112801000002 REACTION (98-CF-250(N,G),,WID,,AV) Averaged over energy interval4112801000003 STATUS (DEP,41128002) 4112801000004 (TABLE) Text of J,AE,74,(1),72,1993, page 74. 4112801000005 ENDBIB 3 0 4112801000006 NOCOMMON 0 0 4112801000007 DATA 4 1 4112801000008 EN-RES-MIN EN-RES-MAX DATA DATA-ERR 4112801000009 EV EV MILLI-EV MILLI-EV 4112801000010 0.025 10. 42. 5. 4112801000011 ENDDATA 3 0 4112801000012 ENDSUBENT 11 0 4112801099999 SUBENT 41128011 20091124 41484112801100001 BIB 4 10 4112801100002 REACTION (98-CF-250(N,TOT),,SIG) 4112801100003 ANALYSIS Defined directly from the energy dependences of 4112801100004 transmissions of two samples, taking into account the 4112801100005 amounts of californium in each sample. 4112801100006 COMMENT Of authors. The low-lying 0.553 eV level determines 4112801100007 mainly interaction in the ranges of thermal and 4112801100008 resonance neutrons, what could explain probably the 4112801100009 discreapancy between our results and those obtained by 4112801100010 activation experiments with Cd screens. 4112801100011 STATUS (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112801100012 ENDBIB 10 0 4112801100013 NOCOMMON 0 0 4112801100014 DATA 3 1 4112801100015 EN DATA DATA-ERR 4112801100016 EV B B 4112801100017 2.53E-02 6200. 2000. 4112801100018 ENDDATA 3 0 4112801100019 ENDSUBENT 18 0 4112801199999 SUBENT 41128012 20091124 41484112801200001 BIB 4 10 4112801200002 REACTION (98-CF-251(N,TOT),,SIG) 4112801200003 ANALYSIS Defined directly from the energy dependences of 4112801200004 transmissions of two samples, taking into account the 4112801200005 amounts of californium in each sample. 4112801200006 COMMENT Of authors. The low-lying 0.389 eV level determines 4112801200007 mainly interaction in the ranges of thermal and 4112801200008 resonance neutrons, what could explain probably the 4112801200009 discreapancy between our results and those obtained by 4112801200010 activation experiments with Cd screens. 4112801200011 STATUS (TABLE) Table 3 of J,AE,74,(1),72,1993 . 4112801200012 ENDBIB 10 0 4112801200013 NOCOMMON 0 0 4112801200014 DATA 3 1 4112801200015 EN DATA DATA-ERR 4112801200016 EV B B 4112801200017 2.53E-02 2000. 400. 4112801200018 ENDDATA 3 0 4112801200019 ENDSUBENT 18 0 4112801299999 ENDENTRY 12 0 4112899999999