ENTRY 41370 20191114 41844137000000001 SUBENT 41370001 20191114 41844137000100001 BIB 15 45 4137000100002 TITLE Neutron Total Cross Section of Np-237 in the Energy 4137000100003 Range 0.5 - 9.0 MeV 4137000100004 AUTHOR (A.A.Lychagin, B.V.Zhuravlev, V.I.Trykova, 4137000100005 V.G.Demenkov) 4137000100006 INSTITUTE (4RUSFEI) 4137000100007 REFERENCE ((S,ISINN-5,355,1997)=(S,JINR-E3-97-213,355,1997)) 4137000100008 In English. 4137000100009 REL-REF (I,,N.S.Biryukov+,J,PTE,,(6),22,1983) 4137000100010 Experimental details of detection 4137000100011 METHOD (TOF) Flight path is 3.8 m. Time resolution 2.5 ns. 4137000100012 Three series of measurements: 4137000100013 - sample of 43 mm diameter, 17 mm thickness, in Al 4137000100014 container of 2 mm wall thickness; 4137000100015 - with the same sample and with Al container (for 4137000100016 background); 4137000100017 - with sample of two times more and with stainless 4137000100018 steel container of 0.5 mm wall thickness. 4137000100019 Each series contains 50 spectra with duration of one 4137000100020 measurement about 18 hours. 4137000100021 - Background was measured with empty sample. 4137000100022 - Contribution of oxygen was defined by measured Al 4137000100023 oxide sample and by calculation on base of total C-S 4137000100024 from ENDF/B-6 and JENDL-3 . 4137000100025 INC-SOURCE (CF252) Thin layer of Cf-252 electrodeposited on 4137000100026 stainless steel backing , 3.5E+% fis/sec. 4137000100027 INC-SPECT Prompt fission neutron spectrum of Cf-252. 4137000100028 DETECTOR (FISCH) For fission fragments 4137000100029 (SCIN) Cylindrical 5cm*5 cm p-terphenil crystal with 4137000100030 photomultiplier - for neutrons 4137000100031 ANALYSIS Transmission measurements were made in addition 4137000100032 MONITOR No information 4137000100033 CORRECTION Corrections were made for oxygen cross-section 4137000100034 SAMPLE Neptunium dioxide in a container 4137000100035 ERR-ANALYS (ERR-T) Total error equal to SQRT of the quadratic sum4137000100036 of partial errors given below 4137000100037 (ERR-S,3.,20.) Statistical error. 4137000100038 (ERR-1) Errors due to the sample density uncertainty 4137000100039 (ERR-2,0.8,2.2) Error of spectrometer calibration 4137000100040 HISTORY (20000403C) + + Compiled at the Center - CJD + + 4137000100041 (20000403U) Last checking has been done. 4137000100042 (20101124U) Reference S,ISINN-5,355,1997 was added. 4137000100043 Upper-lower case correction. 4137000100044 BIB information was added. 4137000100045 (20191114U) PTE ref.was corrected and moved in REL-REF.4137000100046 BIB information was updated. 4137000100047 ENDBIB 45 0 4137000100048 COMMON 1 3 4137000100049 ERR-1 4137000100050 PER-CENT 4137000100051 1.3 4137000100052 ENDCOMMON 3 0 4137000100053 ENDSUBENT 52 0 4137000199999 SUBENT 41370002 20101124 41514137000200001 BIB 2 4 4137000200002 REACTION (93-NP-237(N,TOT),,SIG) 4137000200003 STATUS (APRVD) Lychagin, 2000-03-31 4137000200004 (TABLE) 4137000200005 Data are presented on Fig.4 of S,ISINN-5,355. 4137000200006 ENDBIB 4 0 4137000200007 NOCOMMON 0 0 4137000200008 DATA 3 63 4137000200009 EN DATA ERR-T 4137000200010 MEV B PER-CENT 4137000200011 0.5 8.387183 3.4758 4137000200012 0.6 7.684158 2.8087 4137000200013 0.7 7.428979 2.8953 4137000200014 0.8 7.139441 4.5014 4137000200015 0.9 6.977261 4.3619 4137000200016 1. 6.895895 4.3722 4137000200017 1.1 6.650055 4.3999 4137000200018 1.2 6.564946 4.362 4137000200019 1.3 6.745344 4.2747 4137000200020 1.4 6.797702 4.2708 4137000200021 1.5 6.77504 4.4388 4137000200022 1.6 6.909378 4.4047 4137000200023 1.7 6.735484 4.6404 4137000200024 1.8 6.767488 4.6452 4137000200025 1.9 7.019926 4.4408 4137000200026 2. 7.211249 4.2889 4137000200027 2.1 7.180234 4.8646 4137000200028 2.2 7.156201 5.4152 4137000200029 2.3 7.297495 5.2514 4137000200030 2.4 7.358338 5.2279 4137000200031 2.5 7.375336 5.2182 4137000200032 2.6 7.443499 5.1681 4137000200033 2.7 7.488523 5.1445 4137000200034 2.8 7.597852 5.7854 4137000200035 2.9 7.654188 5.7698 4137000200036 3. 7.624188 5.8066 4137000200037 3.1 7.733038 5.0674 4137000200038 3.2 7.673514 5.1611 4137000200039 3.3 7.658453 5.2437 4137000200040 3.4 7.727891 5.2406 4137000200041 3.5 7.806361 5.2524 4137000200042 3.6 7.898461 5.2657 4137000200043 3.7 7.906214 5.3062 4137000200044 3.8 7.732678 5.4615 4137000200045 3.9 7.773059 5.4835 4137000200046 4. 7.668374 5.5948 4137000200047 4.2 7.621826 5.8276 4137000200048 4.4 7.657066 5.9075 4137000200049 4.6 7.529803 6.2158 4137000200050 4.8 7.41385 6.4279 4137000200051 5. 7.398675 6.7068 4137000200052 5.2 7.324667 7.0857 4137000200053 5.4 7.339816 7.2534 4137000200054 5.6 6.944898 8.0752 4137000200055 5.8 6.982674 8.3487 4137000200056 6. 6.933274 8.768 4137000200057 6.2 7.00408 9.0785 4137000200058 6.4 6.84609 9.7479 4137000200059 6.6 6.42089 10.8711 4137000200060 6.8 6.471204 11.3069 4137000200061 7. 6.31949 12.2291 4137000200062 7.2 6.392286 12.8272 4137000200063 7.4 6.291253 13.2951 4137000200064 7.6 6.49901 13.5789 4137000200065 7.8 6.406561 14.4394 4137000200066 8. 6.061708 16.1918 4137000200067 8.2 5.786071 18.0299 4137000200068 8.4 6.13139 18.1452 4137000200069 8.6 5.955667 19.5942 4137000200070 8.8 5.783464 21.7684 4137000200071 9. 5.477393 24.6471 4137000200072 9.2 5.93216 24.0098 4137000200073 9.4 5.886269 25.4362 4137000200074 ENDDATA 65 0 4137000200075 ENDSUBENT 74 0 4137000299999 ENDENTRY 2 0 4137099999999