ENTRY O1745 20090519 O040O174500000001 SUBENT O1745001 20090519 O040O174500100001 BIB 12 42 O174500100002 TITLE Production of neutron-rich isotopes in fission of O174500100003 uranium induced by neutrons of 20-MeV average energy. O174500100004 AUTHOR (G.Lhersonneau, P.Dendooven, G.Canchel, J.Huikari, O174500100005 P.Jardin, A.Jokinen, V.Kolhinen, C.Lau, L.Lebreton, O174500100006 A.C.Mueller, A.Nieminen, S.Nummela, H.Penttila, O174500100007 K.Perajarvi, Z.Radivojevic, V.Rubchenya, O174500100008 M.G.Saint-Laurent, W.H.Trzaska, D.Vakhtin, J.Vervier, O174500100009 A.C.C.Villari, J.C.Wang, J.Aeystoe) O174500100010 INSTITUTE (2SF JYV) O174500100011 (2BLGLVN) O174500100012 (2FR CAE) O174500100013 (2FR PAR) O174500100014 (4RUSRI) O174500100015 REFERENCE (J,EPJ/A,9,385,2000) O174500100016 FACILITY (CYCLO,2SF JYV) K-130 cyclotron at Jyvaeskylae O174500100017 METHOD (ASEP) O174500100018 SAMPLE The target thickness is limited by the maximum range O174500100019 of these products in the target material. 25*25 mm**2 O174500100020 U-238, thickness 15-mg/cm**2, was used. O174500100021 DETECTOR (SCIN).A large coaxial Ge-detector, 76% relative O174500100022 efficiency, gated by beta-particles passing through a O174500100023 thin plastic scintillator. O174500100024 CORRECTION For each observable activity in a given mass chain, O174500100025 peak area were corrected for detection efficiency and O174500100026 decay branching of the corresponding transitions in O174500100027 order to obtain the number of decay. O174500100028 COMMENT *By authors*.In order to obtain an independent O174500100029 measurement, was counted gamma-rays of activated O174500100030 foils of Al, thickness 0.27-g/cm**2 and Co, thickness O174500100031 0.67-g/cm**2, placed downstream of the converter O174500100032 instead of the U-target. Firstly, knowing the deuteronO174500100033 beam intensity, activated foil thickness and the O174500100034 measured gamma-ray rates one determines a combined O174500100035 experimental cross-section-sigma(c). Secondly, one canO174500100036 calculate an effective cross-section-sigma(n) for O174500100037 neutron activation of the foils, which takes into O174500100038 account the angular and energy distributions of the O174500100039 neutrons impinging on the foils.Comparison of sigma(n)O174500100040 with sigma(c) gives the n/d-conversion factor. O174500100041 STATUS (TABLE).Table in text. O174500100042 (COREL,22723001) Neutron data from this paper. O174500100043 HISTORY (20090519C) SB O174500100044 ENDBIB 42 0 O174500100045 COMMON 1 3 O174500100046 EN O174500100047 MEV O174500100048 25. O174500100049 ENDCOMMON 3 0 O174500100050 ENDSUBENT 49 0 O174500199999 SUBENT O1745002 20090604 O040O174500200001 BIB 4 14 O174500200002 REACTION 1(92-U-238(P,F)ELEM/MASS,,TTY/PY,,MSC) O174500200003 2(92-U-238(P,F)ELEM/MASS,,TTY/PY,,MSC,DERIV) O174500200004 COMMENT *By authors*.Experimental and fitted cumulative O174500200005 yields in 10E+3 ions/micro-coulomb of proton beam. O174500200006 In order to extract trends out of the data in spite of O174500200007 large fluctuations, fits of cumulative yields have beenO174500200008 performed with a restricted number of parameters. O174500200009 The reason for using cumulative rather than O174500200010 independent yields is that they are close to the O174500200011 experimental yields and less correlated. O174500200012 Experimental and cumulative yields merge in the O174500200013 limit of infinitely long measurement times. O174500200014 ERR-ANALYS (DATA-ERR).The uncertainty is reported by authors. O174500200015 STATUS (TABLE).Table 2. O174500200016 ENDBIB 14 0 O174500200017 NOCOMMON 0 0 O174500200018 DATA 5 44 O174500200019 ELEMENT MASS DATA 1DATA-ERR 1DATA 2 O174500200020 NO-DIM NO-DIM PRD/MUCOUL PRD/MUCOUL PRD/MUCOUL O174500200021 34. 88. 0.03 0.01 0.01 O174500200022 35. 88. 0.20 0.02 0.20 O174500200023 35. 89. 0.11 0.02 0.18 O174500200024 35. 90. 0.14 0.02 0.09 O174500200025 35. 91. 0.03 0.01 0.02 O174500200026 36. 88. 0.60 0.33 0.98 O174500200027 36. 89. 2.51 0.33 1.69 O174500200028 36. 90. 0.94 0.33 1.83 O174500200029 36. 91. 0.73 0.20 0.91 O174500200030 36. 93. 0.10 0.02 0.09 O174500200031 37. 89. 3.96 0.35 3.41 O174500200032 37. 90. 6.32 0.65 6.00 O174500200033 37. 91. 5.49 0.31 5.45 O174500200034 37. 93. 1.99 0.16 2.03 O174500200035 37. 94. 1.57 0.15 0.77 O174500200036 38. 94. 4.87 0.35 5.48 O174500200037 43. 112. 0.07 0.02 0.08 O174500200038 44. 112. 1.32 0.60 1.84 O174500200039 45. 112. 6.92 0.88 6.74 O174500200040 52. 136. 0.28 0.04 0.22 O174500200041 52. 137. 0.03 0.01 0.02 O174500200042 53. 136. 1.25 0.73 3.44 O174500200043 53. 137. 1.00 0.12 0.59 O174500200044 53. 138. 0.30 0.03 0.31 O174500200045 53. 139. 0.05 0.02 0.06 O174500200046 53. 140. 0.02 0.01 0.01 O174500200047 54. 137. 2.40 0.27 2.89 O174500200048 54. 139. 0.92 0.11 1.08 O174500200049 54. 140. 0.28 0.03 0.35 O174500200050 54. 141. 0.11 0.03 0.21 O174500200051 55. 138. 6.95 1.40 5.73 O174500200052 55. 139. 5.10 2.10 3.45 O174500200053 55. 140. 2.17 0.15 2.00 O174500200054 55. 141. 2.54 0.38 2.34 O174500200055 55. 142. 0.56 0.08 0.57 O174500200056 55. 144. 0.09 0.02 0.05 O174500200057 56. 139. 7.90 0.90 4.16 O174500200058 56. 141. 6.09 0.48 5.23 O174500200059 56. 142. 2.09 0.26 2.14 O174500200060 56. 143. 2.11 0.24 2.69 O174500200061 56. 144. 1.23 0.16 0.65 O174500200062 57. 142. 2.79 0.28 2.72 O174500200063 57. 143. 6.93 1.10 4.49 O174500200064 57. 144. 1.27 0.18 1.66 O174500200065 ENDDATA 46 0 O174500200066 ENDSUBENT 65 0 O174500299999 SUBENT O1745003 20090604 O040O174500300001 BIB 2 2 O174500300002 REACTION (92-U-238(P,F)MASS,,ZP) O174500300003 STATUS (TABLE).Table 2. O174500300004 ENDBIB 2 0 O174500300005 NOCOMMON 0 0 O174500300006 DATA 2 17 O174500300007 MASS DATA O174500300008 NO-DIM NO-DIM O174500300009 88. 36.20 O174500300010 89. 36.56 O174500300011 90. 36.93 O174500300012 91. 37.30 O174500300013 92. 37.67 O174500300014 93. 38.03 O174500300015 94. 38.40 O174500300016 112. 45.00 O174500300017 136. 53.81 O174500300018 137. 54.18 O174500300019 138. 54.55 O174500300020 139. 54.91 O174500300021 140. 55.28 O174500300022 141. 55.65 O174500300023 142. 56.01 O174500300024 143. 56.38 O174500300025 144. 56.75 O174500300026 ENDDATA 19 0 O174500300027 ENDSUBENT 26 0 O174500399999 ENDENTRY 3 0 O174599999999