ENTRY 41372 20101119 41514137200000001 SUBENT 41372001 20101119 41514137200100001 BIB 11 28 4137200100002 TITLE Investigation of neutron cross-section for thorium-2324137200100003 and neptunium-237 in energy range 2 eV-100 keV. 4137200100004 AUTHOR (Yu.V.Grigog'ev, V.V.Sinitsa, N.A.Gundorin, 4137200100005 H.Faikov-Stanczyk, Yu.P.Popov) 4137200100006 INSTITUTE (4RUSFEI) Grigor'ev, Sinitsa 4137200100007 (4ZZZDUB) Faikov-Ctanczyk, Gundorin, Popov 4137200100008 REFERENCE ((S,ISINN-6,194,1998)=(S,JINR-E3-98-202,194,1998)) 4137200100009 FACILITY (REAC,4ZZZDUB) Pulse Neutron Booster IBR-30 in 4137200100010 booster mode, mean thermal power 10 kWt, pulse 4137200100011 repetition rate 100 Hz, pulse duration 4 microsec 4137200100012 INC-SPECT To diminish recycled neutrons background manganese or 4137200100013 aluminum or indium resonance filters were used 4137200100014 METHOD (TOF) Flight bases are 123 m 4137200100015 DETECTOR (BF3) Boron counters SNM-13 were used for neutron 4137200100016 transmission measurements. 4137200100017 .The intensity of neutron source was measured by 4137200100018 two boron counters SNM-12 4137200100019 (STANK) Unspecified liquid scintillation detector 4137200100020 was used to test the method of measurements 4137200100021 of the self-indication function 4137200100022 STATUS Data are taken from S,ISINN-6,194,1998 4137200100023 CORRECTION Corrections were made on neutron background and 4137200100024 recycled neutrons 4137200100025 HISTORY (20000511C) + + Compiled at the Center - CJD + + 4137200100026 (20000511U) Last checking has been done. 4137200100027 (20101119A) Reference was corrected for new coding of 4137200100028 ISINN- . Upper - lower case correction. 4137200100029 Title was corrected as given in S,ISINN-6,194,1998 . 4137200100030 ENDBIB 28 0 4137200100031 NOCOMMON 0 0 4137200100032 ENDSUBENT 31 0 4137200199999 SUBENT 41372002 20101119 41514137200200001 BIB 6 16 4137200200002 REACTION 1(90-TH-232(N,TOT),,TRN) Transmission 4137200200003 averaged over energy interval given in data section 4137200200004 2(90-TH-232(N,TOT),,SIG,,AV,DERIV) Obtained from trans-4137200200005 mission data 'T' as Sigma = - Ln(T)/(ATOM NUMBER 4137200200006 DENSITY) 4137200200007 Averaged over energy interval given in data section 4137200200008 MONITOR (90-TH-232(N,TOT),,SIG) Thorium cross-section in the 4137200200009 inter-resonance energy region 4137200200010 SAMPLE .Metallic disk samples in aluminum container. 4137200200011 Sample diameter 45 mm, thicknesses 0.01303, 0.02655, 4137200200012 0.0517 atoms/b 4137200200013 ERR-ANALYS (ERR-T,2.,10.) Total Error 4137200200014 (ERR-S,0.2,0.5) Statistical Error 4137200200015 STATUS (TABLE) From Table 1 of S,ISINN-6,194,1998 4137200200016 HISTORY (20101119A) Reaction was corrected: 4137200200017 ,SIG,,AV/RAW) -> ,TRN) 4137200200018 ENDBIB 16 0 4137200200019 NOCOMMON 0 0 4137200200020 DATA 5 41 4137200200021 EN-MIN EN-MAX THICKNESS DATA 1DATA 2 4137200200022 EV EV ATOMS/B NO-DIM B 4137200200023 2.15 4.65 0.01303 0.838 13.6 4137200200024 2.15 4.65 0.02655 0.709 13. 4137200200025 4.65 10. 0.01303 0.837 13.7 4137200200026 4.65 10. 0.02655 0.703 13.3 4137200200027 4.65 10. 0.0517 0.511 12.9 4137200200028 10. 21.5 0.01303 0.843 13.1 4137200200029 10. 21.5 0.02655 0.729 11.9 4137200200030 10. 21.5 0.0517 0.532 12.2 4137200200031 21.5 46.5 0.01303 0.775 19.6 4137200200032 21.5 46.5 0.02655 0.64 16.8 4137200200033 21.5 46.5 0.0517 0.489 13.8 4137200200034 46.5 100. 0.01303 0.795 17.6 4137200200035 46.5 100. 0.02655 0.67 15.1 4137200200036 46.5 100. 0.0517 0.487 13.9 4137200200037 100. 215. 0.01303 0.791 18.1 4137200200038 100. 215. 0.02655 0.659 15.7 4137200200039 100. 215. 0.0517 0.485 13.9 4137200200040 215. 465. 0.01303 0.79 18.1 4137200200041 215. 465. 0.02655 0.661 15.6 4137200200042 215. 465. 0.0517 0.481 14.1 4137200200043 465. 1000. 0.01303 0.788 18.3 4137200200044 465. 1000. 0.02655 0.653 16.1 4137200200045 465. 1000. 0.0517 0.465 14.7 4137200200046 1000. 2150. 0.01303 0.794 17.8 4137200200047 1000. 2150. 0.02655 0.648 16.3 4137200200048 1000. 2150. 0.0517 0.465 14.7 4137200200049 2150. 4650. 0.01303 0.792 17.9 4137200200050 2150. 4650. 0.02655 0.651 16.2 4137200200051 2150. 4650. 0.0517 0.444 15.6 4137200200052 4650. 10000. 0.01303 0.804 16.7 4137200200053 4650. 10000. 0.02655 0.648 16.3 4137200200054 4650. 10000. 0.0517 0.443 15.7 4137200200055 10000. 21500. 0.01303 0.81 16.2 4137200200056 10000. 21500. 0.02655 0.655 15.9 4137200200057 10000. 21500. 0.0517 0.457 15.1 4137200200058 21500. 46500. 0.01303 0.823 15. 4137200200059 21500. 46500. 0.02655 0.672 15. 4137200200060 21500. 46500. 0.0517 0.457 15.1 4137200200061 46500. 100000. 0.01303 0.846 12.8 4137200200062 46500. 100000. 0.02655 0.7 13.4 4137200200063 46500. 100000. 0.0517 0.49 13.7 4137200200064 ENDDATA 43 0 4137200200065 ENDSUBENT 64 0 4137200299999 SUBENT 41372003 20101119 41514137200300001 BIB 7 18 4137200300002 REACTION 1(93-NP-237(N,TOT),,TRN) Transmission 4137200300003 averaged over energy interval given in data section 4137200300004 2(93-NP-237(N,TOT),,SIG,,AV,DERIV) Obtained from trans-4137200300005 mission data 'T' as Sigma = - Ln(T)/(ATOM NUMBER 4137200300006 DENSITY). 4137200300007 Averaged over energy interval given in data section 4137200300008 MONITOR (93-NP-237(N,TOT),,SIG) 4137200300009 SAMPLE .Neptunium powder oxide Np-O2 covered with hermetic 4137200300010 cylindrical aluminum container. Thicknesses are 4137200300011 0.002074, 0.00417 and 0.011253 atoms/barn 4137200300012 CORRECTION .Correction for oxygen content in sample was made 4137200300013 ERR-ANALYS (ERR-T,2.,10.) Total Error 4137200300014 (ERR-S,0.2,0.5) Statistical Error 4137200300015 (ERR-1) Error of oxygen correction 4137200300016 (ERR-2,,0.1) Uncertainty in the thickness of sample. 4137200300017 STATUS (TABLE) From Table 2 of S,ISINN-6,194,1998 4137200300018 HISTORY (20101119A) Reaction was corrected: 4137200300019 ,SIG,,AV/RAW) -> ,TRN) 4137200300020 ENDBIB 18 0 4137200300021 COMMON 1 3 4137200300022 ERR-1 4137200300023 PER-CENT 4137200300024 0.1 4137200300025 ENDCOMMON 3 0 4137200300026 DATA 5 42 4137200300027 EN-MIN EN-MAX THICKNESS DATA 1DATA 2 4137200300028 EV EV ATOMS/B NO-DIM B 4137200300029 2.15 4.65 0.002074 0.93 35. 4137200300030 2.15 4.65 0.00417 0.859 37. 4137200300031 2.15 4.65 0.01253 0.725 25.6 4137200300032 4.65 10. 0.002074 0.857 74.4 4137200300033 4.65 10. 0.00417 0.773 61.7 4137200300034 4.65 10. 0.01253 0.558 46.5 4137200300035 10. 21.5 0.002074 0.846 80.6 4137200300036 10. 21.5 0.00417 0.77 62.7 4137200300037 10. 21.5 0.01253 0.593 41.7 4137200300038 21.5 46.5 0.002074 0.86 72.7 4137200300039 21.5 46.5 0.00417 0.772 62.1 4137200300040 21.5 46.5 0.01253 0.567 45.3 4137200300041 46.5 100. 0.002074 0.878 62.7 4137200300042 46.5 100. 0.00417 0.776 60.8 4137200300043 46.5 100. 0.01253 0.543 48.8 4137200300044 100. 215. 0.002074 0.905 48.1 4137200300045 100. 215. 0.00417 0.825 46.1 4137200300046 100. 215. 0.01253 0.61 39.5 4137200300047 215. 465. 0.002074 0.921 39.5 4137200300048 215. 465. 0.00417 0.857 36.9 4137200300049 215. 465. 0.01253 0.654 33.9 4137200300050 465. 1000. 0.002074 0.933 33.4 4137200300051 465. 1000. 0.00417 0.877 31.4 4137200300052 465. 1000. 0.01253 0.69 28.7 4137200300053 1000. 2150. 0.002074 0.936 31.9 4137200300054 1000. 2150. 0.00417 0.88 30.5 4137200300055 1000. 2150. 0.01253 0.743 23.7 4137200300056 2150. 4650. 0.002074 0.943 28.5 4137200300057 2150. 4650. 0.00417 0.894 27. 4137200300058 2150. 4650. 0.01253 0.771 20.7 4137200300059 4650. 10000. 0.002074 0.95 24.7 4137200300060 4650. 10000. 0.00417 0.903 24.5 4137200300061 4650. 10000. 0.01253 0.808 17.1 4137200300062 10000. 21500. 0.002074 0.958 20.7 4137200300063 10000. 21500. 0.00417 0.922 19.5 4137200300064 10000. 21500. 0.01253 0.83 14.9 4137200300065 21500. 46500. 0.002074 0.964 17.7 4137200300066 21500. 46500. 0.00417 0.934 16.3 4137200300067 21500. 46500. 0.01253 0.852 12.8 4137200300068 46500. 100000. 0.002074 0.973 13.2 4137200300069 46500. 100000. 0.00417 0.957 10.5 4137200300070 46500. 100000. 0.01253 0.869 11.2 4137200300071 ENDDATA 44 0 4137200300072 ENDSUBENT 71 0 4137200399999 SUBENT 41372004 20101119 41514137200400001 BIB 5 10 4137200400002 REACTION (90-TH-232(N,TOT),,SIG,,AV) Averaged over energy 4137200400003 interval given in data section 4137200400004 ANALYSIS Average group total cross-sections were obtained by 4137200400005 extrapolation the observed exp. c-s to zero thickness,4137200400006 i.e. by multiplication of observed c-s by calculated 4137200400007 coefficients of self-shielding. 4137200400008 ERR-ANALYS (ERR-T) Total Error 4137200400009 CORRECTION .Correction for resonance self-shielding was made 4137200400010 STATUS (DEP,41372002) See ANALYSIS. 4137200400011 (TABLE) From Table 3 of S,ISINN-6,194,1998 4137200400012 ENDBIB 10 0 4137200400013 NOCOMMON 0 0 4137200400014 DATA 4 14 4137200400015 EN-MIN EN-MAX DATA ERR-T 4137200400016 EV EV B B 4137200400017 2.15 4.65 13.3 0.7 4137200400018 4.65 10. 13.3 0.7 4137200400019 10. 21.5 12.4 0.6 4137200400020 21.5 46.5 74.6 4. 4137200400021 46.5 100. 71.8 3. 4137200400022 100. 215. 45.3 1.5 4137200400023 215. 465. 33.5 1.3 4137200400024 465. 1000. 24.9 1.1 4137200400025 1000. 2150. 21.9 0.9 4137200400026 2150. 4650. 19.6 0.9 4137200400027 4650. 10000. 17.7 0.8 4137200400028 10000. 21500. 16.1 0.7 4137200400029 21500. 46500. 15. 0.7 4137200400030 46500. 100000. 13.3 0.6 4137200400031 ENDDATA 16 0 4137200400032 ENDSUBENT 31 0 4137200499999 SUBENT 41372005 20101119 41514137200500001 BIB 5 10 4137200500002 REACTION (93-NP-237(N,TOT),,SIG,,AV) Averaged over energy 4137200500003 interval given in data section 4137200500004 ANALYSIS Average group total cross-sections were obtained by 4137200500005 extrapolation the observed exp. c-s to zero thickness,4137200500006 i.e. by multiplication of observed c-s by calculated 4137200500007 coefficients of self-shielding. 4137200500008 CORRECTION .Correction for resonance self-shielding was made 4137200500009 ERR-ANALYS (ERR-T) Total error 4137200500010 STATUS (DEP,41372003) See ANALYSIS . 4137200500011 (TABLE) From Table 3 of S,ISINN-6,194,1998 4137200500012 ENDBIB 10 0 4137200500013 NOCOMMON 0 0 4137200500014 DATA 4 14 4137200500015 EN-MIN EN-MAX DATA ERR-T 4137200500016 EV EV B B 4137200500017 2.15 4.65 57.3 3.5 4137200500018 4.65 10. 104.5 6. 4137200500019 10. 21.5 107.5 5. 4137200500020 21.5 46.5 98.8 5. 4137200500021 46.5 100. 76.7 4.5 4137200500022 100. 215. 49.5 4. 4137200500023 215. 465. 39.1 3.3 4137200500024 465. 1000. 32.7 3. 4137200500025 1000. 2150. 31.3 2.7 4137200500026 2150. 4650. 27.8 2.8 4137200500027 4650. 10000. 24.6 2.5 4137200500028 10000. 21500. 20.1 2.2 4137200500029 21500. 46500. 17. 1.7 4137200500030 46500. 100000. 11.9 1.3 4137200500031 ENDDATA 16 0 4137200500032 ENDSUBENT 31 0 4137200599999 ENDENTRY 5 0 4137299999999