ENTRY 30645 20090409 31363064500000001 SUBENT 30645001 20090409 31363064500100001 BIB 14 32 3064500100002 TITLE Measurement of the cross sections ratios for the 3064500100003 reactions 90Zr(n,2n)89m+gZr by 93Nb(n,2n)92mNb-, 3064500100004 63Cu(n,2n)62Cu by 27Al(n,p)27Mg and 27Al(n,a)24Na by 3064500100005 27A(n,p)27Mg for the purpose of neutron spectrometry 3064500100006 around 14 MeV 3064500100007 AUTHOR (A.Chiadli, A.Ait Haddou, M.Viennot, G.Paic) 3064500100008 INSTITUTE (3MORMOH,3CRORBZ) 3064500100009 REFERENCE (C,82ANTWER,,404,198209) 3064500100010 FACILITY (CCW) Neutron generator (No information on location) 3064500100011 INC-SOURCE (D-T) at angles 0 and 105 degrees 3064500100012 INC-SPECT The neutron energy was calculated allowing for the 3064500100013 following considerations 3064500100014 1) The angle of emission of the neutron 3064500100015 2) The existence of two groups of neutron energies 3064500100016 due to the presence of atomic and molecular ions 3064500100017 in the deuteron beam that is not analyzed. 3064500100018 3) The energy spread due to the profile of the 3064500100019 tritium in the titanium layer the energy spread 3064500100020 due to the final angular apertures spanned by the 3064500100021 beam spot and samples dimensions 3064500100022 SAMPLE Thin foils of 1 cm diameter and placed at 11 cm from 3064500100023 the center of the Ti-T target 3064500100024 METHOD (ACTIV) 3064500100025 DETECTOR (GELI) 3064500100026 ANALYSIS The method of the neutron energy determination by 3064500100027 using of the cross section ratio measurement was 3064500100028 tested for some threshold reactions. 3064500100029 ERR-ANALYS (DATA-ERR) No information 3064500100030 STATUS (TABLE) Taken from C,82ANTWER,,404,1982 3064500100031 HISTORY (19830110C) VP. 3064500100032 (19850313U) DG. Cosmetic changes in bib section 3064500100033 (20090409U) On. BIB updated (Upper to lower cases etc.)3064500100034 ENDBIB 32 0 3064500100035 NOCOMMON 0 0 3064500100036 ENDSUBENT 35 0 3064500199999 SUBENT 30645002 20090409 31363064500200001 BIB 3 9 3064500200002 REACTION ((29-CU-63(N,2N)29-CU-62,,SIG)/ 3064500200003 (13-AL-27(N,P)12-MG-27,,SIG)) 3064500200004 COMMENT The results of the determination of the neutron energy 3064500200005 by using the above ratio were neither consistent nor 3064500200006 reproducible. The reason for that is apparently due to 3064500200007 the large sensitivity of the annihilation process of 3064500200008 b+ used to determine 63Cu(n,2n) cross section on the 3064500200009 spatial arrangements of masses during the measurements.3064500200010 HISTORY (20090409U) On. BIB updated (Upper to lower cases etc.)3064500200011 ENDBIB 9 0 3064500200012 NOCOMMON 0 0 3064500200013 NODATA 0 0 3064500200014 ENDSUBENT 13 0 3064500299999 SUBENT 30645003 20090409 31363064500300001 BIB 5 19 3064500300002 REACTION ((40-ZR-90(N,2N)40-ZR-89,,SIG)/ 3064500300003 (41-NB-93(N,2N)41-NB-92-M,,SIG)) 3064500300004 DECAY-DATA No information 3064500300005 MISC-COL (MISC1) Data on energy of the incident neutrons 3064500300006 extracted by authors using the cross section 3064500300007 data by 3064500300008 S.Tagesen and H.Vonach,C,78HARWELL,,1066,1978 3064500300009 and 3064500300010 D.R.Nethaway,J.Inorg.Chem. 40(1978)1285 (1978)3064500300011 COMMENT Energy given under en in data section is the incident 3064500300012 energy determined by usual way for two angles between 3064500300013 deuteron and neutron beams 0 and 105 degrees 3064500300014 Compiler's comment- Cross sections are compiled in 3064500300015 EXFOR 30697.002 3064500300016 93Nb(n,2n)92mNb (En=13.9,14.3,14.5,14.6,14.8 MeV) 3064500300017 EXFOR 30697.003 3064500300018 90Zr(n,2n)89Zr (En=14.1 and 14.8 MeV) 3064500300019 HISTORY (19850313U) DG. Comment added 3064500300020 (20090409A) On. REACTION (SF4,SF6) -M+G, /SUM deleted 3064500300021 ENDBIB 19 0 3064500300022 NOCOMMON 0 0 3064500300023 DATA 5 2 3064500300024 EN DATA DATA-ERR MISC1 MISC1-ERR 3064500300025 MEV NO-DIM NO-DIM MEV MEV 3064500300026 1.3830E+01 1.0300E+00 8.0000E-02 1.3990E+01 1.0000E-02 3064500300027 1.4930E+01 1.8800E+00 7.0000E-02 1.4810E+01 9.0000E-02 3064500300028 ENDDATA 4 0 3064500300029 ENDSUBENT 28 0 3064500399999 SUBENT 30645004 20090409 31363064500400001 BIB 5 16 3064500400002 REACTION 1((13-AL-27(N,A)11-NA-24,,SIG)/ 3064500400003 (13-AL-27(N,P)12-MG-27,,SIG)) 3064500400004 2((13-AL-27(N,A)11-NA-24,,SIG)/ 3064500400005 (13-AL-27(N,P)12-MG-27,,SIG)) 3064500400006 DETECTOR 1 15 cm distance between the sample and the window 3064500400007 of the GeLi detector (to avoid the influence of the 3064500400008 coincidence due to the gamma cascade in 24Na 3064500400009 2 Irradiated al foil placed against the window of 3064500400010 the GeLi detector 3064500400011 DECAY-DATA No information 3064500400012 COMMENT The authors do not have an explanation for the 3064500400013 disagreement between measured ratio of cross-section 3064500400014 in good geometry (R=1.75+-0.06) and calculated value 3064500400015 (R=1.57+-0.03) based at S.Tagesen+,IKE-23-1 (1981) and3064500400016 D.G.Young+,LA-4726 (1973) ENDF/B MAT=6313. 3064500400017 HISTORY (20090409U) On. BIB updated (Upper to lower cases etc.)3064500400018 ENDBIB 16 0 3064500400019 NOCOMMON 0 0 3064500400020 DATA 5 1 3064500400021 EN DATA 1DATA-ERR 1DATA 2DATA-ERR 2 3064500400022 MEV NO-DIM NO-DIM NO-DIM NO-DIM 3064500400023 1.4930E+01 1.7500E+00 6.0000E-02 1.6100E+00 6.0000E-02 3064500400024 ENDDATA 3 0 3064500400025 ENDSUBENT 24 0 3064500499999 ENDENTRY 4 0 3064599999999