ENTRY O1529 20070809 O031O152900000001 SUBENT O1529001 20070809 O031O152900100001 BIB 13 38 O152900100002 TITLE Fusion cross sections for Be-9+Ca-40. O152900100003 AUTHOR (J.S.Eck, A.R.Omar, J.R.Leigh, T.R.Ophel) O152900100004 REFERENCE (J,PR/C,27,1807,1983) O152900100005 INSTITUTE (1USAKAN) O152900100006 (3AULCBR) O152900100007 SAMPLE The targets consisted of approx. 100-mug/cm**2 Ca-40, O152900100008 greater than 99% enrichment, evaporated onto thin O152900100009 5-mug/cm**2 carbon backing. O152900100010 The targets were evaporated, transferred, stored and O152900100011 bombarded in carbon free vacuum system, thus minimizingO152900100012 contamination by oxygen, hydrogen and carbon. O152900100013 DETECTOR (SIBAR) O152900100014 A ninefold delta-E-E ionization chamber surface barrierO152900100015 detector system. O152900100016 MONITOR (79-AU-197(4-BE-9,EL)79-AU-197,,DA) The monitor O152900100017 detector at 19-degree were determined from elastic O152900100018 scattering of Be-9 from a Au-197. O152900100019 COMMENT *By authors*.The relative normalization was obtained O152900100020 using the fixed angle monitor detector. O152900100021 Absolute normalization was obtained by normalizing the O152900100022 yields of evaporation residues to the elastic O152900100023 scattering cross section Be-9+Ca-40 at 19-degree as O152900100024 measured by the monitor detector. O152900100025 The relative normalization error is of the order of 4% O152900100026 while the error in absolute normalization is of the O152900100027 order of 20% . O152900100028 *By authors*.The measured fusion cross section was O152900100029 lower than that determined for system and also much O152900100030 lower than the total reaction cross section calculated O152900100031 using optical model parameters which fitted elastic O152900100032 scattering cross sections in the same energy range. O152900100033 FACILITY (VDGT,3AULCBR) 14UD Pelletron accelerator. O152900100034 METHOD (EDE) O152900100035 HISTORY (20070809C) By S.B O152900100036 (20070809U) Last checking has been done. O152900100037 STATUS (CURVE) By CAJAD O152900100038 ADD-RES (COMP) Optical model calculations. O152900100039 The total reaction cross sections was calculated. O152900100040 ENDBIB 38 0 O152900100041 NOCOMMON 0 0 O152900100042 ENDSUBENT 41 0 O152900199999 SUBENT O1529002 20070809 O031O152900200001 BIB 2 3 O152900200002 REACTION (20-CA-40(4-BE-9,FUS),,DA,ER) Fig 2 O152900200003 ERR-ANALYS (ERR-DIG).Digitizing error of data. O152900200004 (ANG-ERR-D).Digitizing error of angle. O152900200005 ENDBIB 3 0 O152900200006 COMMON 2 3 O152900200007 ANG-ERR-D ERR-DIG O152900200008 ADEG PER-CENT O152900200009 0.14 1.6 O152900200010 ENDCOMMON 3 0 O152900200011 DATA 3 57 O152900200012 EN ANG DATA O152900200013 MEV ADEG MB/SR O152900200014 35. 3.15 1810. O152900200015 35. 6.38 1269. O152900200016 35. 9.19 1216. O152900200017 35. 12.43 765. O152900200018 35. 15.15 563. O152900200019 35. 18.17 467. O152900200020 35. 21.3 343. O152900200021 35. 27.55 175. O152900200022 35. 31.92 17.47 O152900200023 35. 34.84 9.44 O152900200024 40. 3.35 2410. O152900200025 40. 6.28 1761. O152900200026 40. 9.29 1687. O152900200027 40. 12.42 1177. O152900200028 40. 15.44 956. O152900200029 40. 18.47 683. O152900200030 40. 21.3 439. O152900200031 40. 27.25 243. O152900200032 40. 31.95 40.2 O152900200033 40. 35.11 32.9 O152900200034 45. 3.17 2370. O152900200035 45. 6.09 1890. O152900200036 45. 9.11 1720. O152900200037 45. 12.43 1341. O152900200038 45. 15.46 1009. O152900200039 45. 18.58 750. O152900200040 45. 21.37 167.9 O152900200041 45. 25.1 124.8 O152900200042 45. 33.26 57.1 O152900200043 45. 36.41 29.5 O152900200044 50. 3.3 1920. O152900200045 50. 6.52 1598. O152900200046 50. 9.44 1510. O152900200047 50. 12.55 1346. O152900200048 50. 15.47 1041. O152900200049 50. 18.59 854. O152900200050 50. 24.3 150.3 O152900200051 50. 33.48 60.4 O152900200052 50. 36.32 32.1 O152900200053 55. 3.12 2230. O152900200054 55. 6.13 1786. O152900200055 55. 9.55 1501. O152900200056 55. 12.58 1045. O152900200057 55. 15.39 1124. O152900200058 55. 18.61 774. O152900200059 55. 25.48 174.9 O152900200060 55. 33.3 55.5 O152900200061 55. 36.34 36.2 O152900200062 60. 3.16 3400. O152900200063 60. 6.49 2530. O152900200064 60. 9.4 2450. O152900200065 60. 12.42 1703. O152900200066 60. 15.24 1609. O152900200067 60. 18.26 1158. O152900200068 60. 26.85 150.2 O152900200069 60. 33.2 64.4 O152900200070 60. 36.31 60.8 O152900200071 ENDDATA 59 0 O152900200072 ENDSUBENT 71 0 O152900299999 SUBENT O1529003 20070809 O031O152900300001 BIB 4 7 O152900300002 REACTION (20-CA-40(4-BE-9,FUS),,SIG) Fig 3 O152900300003 COMMENT *By authors*.The total fusion cross section at given O152900300004 energy was obtained by summing the area under the O152900300005 angular distribution. O152900300006 STATUS (DEP,O1529002) O152900300007 ERR-ANALYS (DATA-ERR).The error is reported by authors on fig. O152900300008 (EN-ERR-DIG).Digitizing error of incident energy. O152900300009 ENDBIB 7 0 O152900300010 COMMON 1 3 O152900300011 EN-ERR-DIG O152900300012 MEV O152900300013 0.14 O152900300014 ENDCOMMON 3 0 O152900300015 DATA 3 6 O152900300016 EN DATA DATA-ERR O152900300017 MEV B B O152900300018 34.8 0.49 0.1 O152900300019 39.92 0.62 0.12 O152900300020 44.86 0.63 0.12 O152900300021 49.9 0.63 0.13 O152900300022 55.04 0.67 0.14 O152900300023 60.15 0.81 0.15 O152900300024 ENDDATA 8 0 O152900300025 ENDSUBENT 24 0 O152900399999 ENDENTRY 3 0 O152999999999