ENTRY M0634 20130627 M067M063400000001 SUBENT M0634001 20130627 M067M063400100001 BIB 16 49 M063400100002 TITLE Photofission cross section for 234U in the energy M063400100003 region of 5 - 9 MeV. M063400100004 AUTHOR (A.S.Soldatov,A.I.Blokhin,A.V.Ignatyuk, M063400100005 A.N.Storozhenko) M063400100006 INSTITUTE (4RUSFEI) M063400100007 REFERENCE (J,YF,61,1427,1998) M063400100008 (J,PAN,61,1325,1998) M063400100009 INC-SOURCE (BRST) M063400100010 FACILITY (MICRT,4RUSFEI) M063400100011 SAMPLE The Al-U-oxide target. Thickness of U-234 - 0.63 M063400100012 mg/cm**2, U-238 - 1 mg/cm**2. the U-234 target was M063400100013 enriched in isotope U-234 to 92.8 % (U-235 - 6.7 %, M063400100014 U-238 - 0.5 %). the u-238 target was natural M063400100015 uranium. M063400100016 METHOD (EXTB,STTA) stack of Th and U targets. M063400100017 DETECTOR (TRD) Mica-foils. M063400100018 MONITOR (92-U-238(G,F),,SIG,,BRA) M063400100019 MONIT-REF (,A.S.Soldatov+,J,YF,55,3153,1992) M063400100020 The U-238(g,f) reaction cross section data. M063400100021 ANALYSIS (UNFLD) The unfolding of the reaction cross section M063400100022 using the iterational method from the experimental M063400100023 reaction yield measured using the the direct fission M063400100024 fragment counting. M063400100025 ERR-ANALYS (DATA-ERR) Mean-square errors. M063400100026 STATUS (TABLE,APRVD) by A.I.Blokhin. M063400100027 COMMENT The relative photofission cross sections for 234U M063400100028 were measured in the bremsstrahlung beam of SSCRF M063400100029 IPPE microtron in the g-ray energy region of 4.7 M063400100030 - 9.0 MeV with step of 25 keV in subbarrier range. M063400100031 Energy dependencies of the photofission cross M063400100032 section components for 234U through the channels M063400100033 with the quantum numbers J-PI k = 1- 0 and 1- 1 were M063400100034 calculated using the results of the present work and M063400100035 previously measured angular distributions of fission M063400100036 fragments. On the basis of these data the M063400100037 theoretical analysis of the 234U subbarrier M063400100038 photofossion was carried out in the framework of the M063400100039 one-dimensional double-humped barrier model taking M063400100040 into account damping effects of vibrational states M063400100041 in the secondary minimum. Fission barrier parameters M063400100042 were adjusted. The results of the present research M063400100043 were compared with the data obtained on other M063400100044 measurements. M063400100045 HISTORY (20020419C) M063400100046 Data were compiled at the RUSSIA MSU INP CDFE by M063400100047 V.Varlamov. M063400100048 (20061025A) REFERENCE and DATES corrected at MSU SINP M063400100049 CDFE, lowercase. M063400100050 (20130627A) Corrected by V.Varlamov: REACTION. M063400100051 ENDBIB 49 0 M063400100052 NOCOMMON 0 0 M063400100053 ENDSUBENT 52 0 M063400199999 SUBENT M0634002 20061027 M041M063400200001 BIB 1 2 M063400200002 REACTION ((92-U-234(G,F),,SIG,,BRA)/ M063400200003 (92-U-238(G,F),,SIG,,BRA)) M063400200004 ENDBIB 2 0 M063400200005 NOCOMMON 0 0 M063400200006 DATA 3 61 M063400200007 EN-MAX DATA DATA-ERR M063400200008 MEV NO-DIM NO-DIM M063400200009 4.725 0.806 0.103 M063400200010 4.775 1.217 0.131 M063400200011 4.825 1.791 0.156 M063400200012 4.875 2.016 0.153 M063400200013 4.925 1.922 0.115 M063400200014 4.975 2.197 0.121 M063400200015 5.025 3.038 0.158 M063400200016 5.225 8.235 0.526 M063400200017 5.25 8.091 0.768 M063400200018 5.275 7.852 0.722 M063400200019 5.3 7.199 0.540 M063400200020 5.325 7.198 0.366 M063400200021 5.35 7.195 0.496 M063400200022 5.375 7.006 0.505 M063400200023 5.425 6.773 0.312 M063400200024 5.525 5.321 0.160 M063400200025 5.55 4.958 0.144 M063400200026 5.575 4.342 0.126 M063400200027 5.6 3.765 0.109 M063400200028 5.625 3.603 0.076 M063400200029 5.65 3.302 0.096 M063400200030 5.7 2.878 0.083 M063400200031 5.725 2.745 0.058 M063400200032 5.75 2.606 0.055 M063400200033 5.775 2.562 0.074 M063400200034 5.8 2.493 0.072 M063400200035 5.825 2.337 0.049 M063400200036 5.925 2.158 0.045 M063400200037 5.95 2.082 0.060 M063400200038 5.975 2.120 0.061 M063400200039 6.0 2.058 0.060 M063400200040 6.025 2.046 0.043 M063400200041 6.125 1.877 0.039 M063400200042 6.225 1.789 0.043 M063400200043 6.325 1.764 0.053 M063400200044 6.425 1.791 0.054 M063400200045 6.525 1.754 0.051 M063400200046 6.625 1.733 0.050 M063400200047 6.725 1.870 0.054 M063400200048 6.825 1.923 0.054 M063400200049 6.925 1.96 0.055 M063400200050 7.025 1.951 0.054 M063400200051 7.125 1.992 0.056 M063400200052 7.225 2.122 0.059 M063400200053 7.325 2.123 0.059 M063400200054 7.425 2.228 0.064 M063400200055 7.525 2.154 0.048 M063400200056 7.625 2.262 0.055 M063400200057 7.725 2.320 0.067 M063400200058 7.825 2.425 0.071 M063400200059 7.925 2.441 0.071 M063400200060 8.025 2.356 0.068 M063400200061 8.125 2.468 0.072 M063400200062 8.225 2.482 0.072 M063400200063 8.325 2.422 0.070 M063400200064 8.425 2.432 0.071 M063400200065 8.525 2.369 0.071 M063400200066 8.625 2.576 0.077 M063400200067 8.725 2.556 0.079 M063400200068 8.825 2.598 0.081 M063400200069 8.925 2.545 0.078 M063400200070 ENDDATA 63 0 M063400200071 ENDSUBENT 70 0 M063400299999 SUBENT M0634003 20130627 M067M063400300001 BIB 2 2 M063400300002 REACTION (94-PU-238(G,F),,SIG,,BRS) M063400300003 HISTORY (20130627A) Corrected by V.Varlamov: BRA -> BRS. M063400300004 ENDBIB 2 0 M063400300005 NOCOMMON 0 0 M063400300006 DATA 3 60 M063400300007 EN DATA DATA-ERR M063400300008 MEV MB MB M063400300009 4.75 0.0065 0.0017 M063400300010 4.8 0.0138 0.0024 M063400300011 4.85 0.0127 0.004 M063400300012 4.9 0.0091 0.0068 M063400300013 4.95 0.0339 0.0094 M063400300014 5.0 0.126 0.019 M063400300015 5.125 0.585 0.205 M063400300016 5.238 0.817 0.287 M063400300017 5.262 0.963 0.303 M063400300018 5.288 1.1 0.461 M063400300019 5.313 1.53 0.405 M063400300020 5.338 1.704 0.38 M063400300021 5.362 1.724 0.272 M063400300022 5.4 1.96 0.266 M063400300023 5.475 2.279 0.268 M063400300024 5.538 2.902 0.284 M063400300025 5.562 3.188 0.237 M063400300026 5.588 3.919 0.206 M063400300027 5.612 5.385 0.362 M063400300028 5.638 5.715 0.371 M063400300029 5.675 5.87 0.404 M063400300030 5.713 5.756 0.415 M063400300031 5.738 5.452 0.356 M063400300032 5.763 5.289 0.331 M063400300033 5.788 4.801 0.427 M063400300034 5.813 4.359 0.5 M063400300035 5.875 4.928 0.39 M063400300036 5.938 6.091 0.467 M063400300037 5.963 7.434 0.266 M063400300038 5.988 7.986 0.52 M063400300039 6.013 8.867 0.78 M063400300040 6.075 9.744 0.706 M063400300041 6.175 11.92 0.718 M063400300042 6.275 14.01 0.985 M063400300043 6.375 15.48 0.96 M063400300044 6.475 16.53 1.04 M063400300045 6.575 19.73 1.25 M063400300046 6.675 23.03 1.34 M063400300047 6.775 24.71 1.77 M063400300048 6.875 27.30 1.69 M063400300049 6.975 29.75 1.27 M063400300050 7.075 34.04 1.38 M063400300051 7.175 36.07 2.07 M063400300052 7.275 37.55 2.88 M063400300053 7.375 39.02 4.03 M063400300054 7.475 40.84 4.61 M063400300055 7.575 42.41 4.5 M063400300056 7.675 42.60 3.75 M063400300057 7.775 42.18 2.93 M063400300058 7.875 41.58 4.03 M063400300059 7.975 42.2 4.75 M063400300060 8.075 43.49 5.07 M063400300061 8.175 44.2 5.38 M063400300062 8.275 46.02 5.8 M063400300063 8.375 48.97 6.31 M063400300064 8.475 51.99 6.85 M063400300065 8.575 53.95 7.22 M063400300066 8.675 54.03 7.4 M063400300067 8.775 56.48 7.87 M063400300068 8.875 62.81 10.4 M063400300069 ENDDATA 62 0 M063400300070 ENDSUBENT 69 0 M063400399999 ENDENTRY 3 0 M063499999999