ENTRY O0867 20030501 0000O086700000001 SUBENT O0867001 20030501 0000O086700100001 BIB 13 57 O086700100002 TITLE Non-Rutherford Cross sections in heavy ion elastic O086700100003 recoil spectrometry: 40-70 MeV 32-S ions on carbon, O086700100004 nitrogen and oxygen. O086700100005 AUTHOR (J.Raisanen, E.Rauhala, J.M.Knox, J.F.Harmon) O086700100006 REFERENCE (J,JAP,75,3273,1994) O086700100007 INSTITUTE (2SF HLS) Accelerator laboratory O086700100008 (1USAISU) O086700100009 METHOD (SITA) O086700100010 (EXTB) O086700100011 FACILITY (VDGT,2SF HLS) O086700100012 HISTORY (20010512C) O086700100013 (20010910R) Data tables from e. Rauhala O086700100014 (20030501U) Last checking has been done. O086700100015 COMMENT -By author - the experiments are performed by measuringO086700100016 the elastic scattering yields near the coulomb barrier O086700100017 energies for the 32-S(12-C,12-C)32-S, O086700100018 32-S(14-N,14-N)32-S, and 32-S(16-O,16-O)32-S reactions.O086700100019 Direct scattering of the lighter ions was measured O086700100020 because the high 32-S ion energies needed could not be O086700100021 achieved, and therefore, the cross sections were O086700100022 calculated from the kinematically reversed O086700100023 12-C(32-S,12-C)32-S, 14-N(32-S,14-N)32-S, and O086700100024 16-O(32-S,16-O)32-S reactions. O086700100025 The uncertainties in the cross section values, O086700100026 resulting from the statistical and background O086700100027 subtraction errors in the determination of the peak O086700100028 areas, increased from 2% at the low energy end to 5% O086700100029 towards the high energy end of the given ion energy O086700100030 intervals. A small error may be introduced in the O086700100031 cross sections due to the natural isotopic abundance ofO086700100032 sulfur (95% 32-S) in the Zn-S target. O086700100033 REL-REF (N,,M.BOZOIAN,J,NIM/B,82,602,1993) O086700100034 An analytical model to predict the non-Rutherford O086700100035 threshold energy of scattering. O086700100036 (R,,H.H.ANDERSEN+,J,PR/A,21,1891,1980) O086700100037 The ion Rutherford scattering cross section of gold, O086700100038 corrected for electronic screening. O086700100039 ADD-RES (COMP) Experimental and theoretical non-Rutherford O086700100040 threshold energies for elastic scattering O086700100041 SAMPLE A Zn-S sample was used for cross section measurements O086700100042 and a manganese sample was chosen for background O086700100043 subtraction. The Zn-S and Mn films thicknesses 40 and O086700100044 55 mu-gramm/cmm**2, respectively. The films were O086700100045 fabricated by the e-gun vacuum evaporation technique onO086700100046 carbon foils on temporary glass supports. The films O086700100047 were furher coated by thin gold film with 54 O086700100048 mu-gramms/cm**2 for ion dose normalization purposes. O086700100049 The gold film was to serve as an internal dose O086700100050 reference. O086700100051 CORRECTION The interference from the reaction yields produced by O086700100052 the carbon substrate were eliminated by subtracting theO086700100053 normalized manganese spectra from the Zn-S spectra. O086700100054 The Mn film thickness was chosen to correspond to O086700100055 average energy loss of the differentions in the Zn-S O086700100056 film. O086700100057 STATUS (COREL,O0868001) O086700100058 (TABLE) From e.Rauhala O086700100059 ENDBIB 57 0 O086700100060 NOCOMMON 0 0 O086700100061 ENDSUBENT 60 0 O086700199999 SUBENT O0867002 20030501 0000O086700200001 BIB 4 9 O086700200002 REACTION (6-C-12(16-S-32,EL)6-C-12,,DA,,RTH) O086700200003 MONITOR (79-AU-197(6-C-12,EL)79-AU-197,,DA) The cross section O086700200004 was assumed as Rutherford cross section. O086700200005 PART-DET (6-C-12) O086700200006 DETECTOR (SIBAR) Four the detectors were positioned at O086700200007 scattering angles of 121-78 degrees, corresponding to O086700200008 recoil angles of 12-C 20, 25, 30, and 40 degrees. O086700200009 The recoil angular resolution was +/- (0.9 - 1.5) O086700200010 degree. O086700200011 ENDBIB 9 0 O086700200012 NOCOMMON 0 0 O086700200013 DATA 3 44 O086700200014 EN ANG DATA O086700200015 MEV ADEG NO-DIM O086700200016 26.2965 20. 1.0281 O086700200017 26.2965 25. 0.9992 O086700200018 26.2965 30. 1.0282 O086700200019 26.2965 40. 1.046 O086700200020 31.6498 20. 1.031 O086700200021 31.6498 25. 0.9764 O086700200022 31.6498 30. 0.9947 O086700200023 31.6498 40. 0.9885 O086700200024 37.0059 20. 1.0167 O086700200025 37.0059 25. 1.0078 O086700200026 37.0059 30. 1.0126 O086700200027 37.0059 40. 1.0162 O086700200028 41.0229 20. 0.9836 O086700200029 41.0229 25. 1.0164 O086700200030 41.0229 30. 1.0456 O086700200031 41.0229 40. 1.0574 O086700200032 45.0399 20. 0.9427 O086700200033 45.0399 25. 0.9563 O086700200034 45.0399 30. 0.9405 O086700200035 45.0399 40. 0.9627 O086700200036 47.7179 20. 0.9718 O086700200037 47.7179 25. 0.9581 O086700200038 47.7179 30. 0.9781 O086700200039 47.7179 40. 1.0145 O086700200040 50.3959 20. 0.9367 O086700200041 50.3959 25. 0.9187 O086700200042 50.3959 30. 0.9054 O086700200043 50.3959 40. 0.9634 O086700200044 53.0739 20. 0.7262 O086700200045 53.0739 25. 0.799 O086700200046 53.0739 30. 0.7996 O086700200047 53.0739 40. 0.9512 O086700200048 55.7513 20. 0.442 O086700200049 55.7513 25. 0.5424 O086700200050 55.7513 30. 0.5726 O086700200051 55.7513 40. 0.7664 O086700200052 58.4286 20. 0.1879 O086700200053 58.4286 25. 0.3369 O086700200054 58.4286 30. 0.3666 O086700200055 58.4286 40. 0.7091 O086700200056 61.106 20. 0.1444 O086700200057 61.106 25. 0.133 O086700200058 61.106 30. 0.2546 O086700200059 61.106 40. 0.4371 O086700200060 ENDDATA 46 0 O086700200061 ENDSUBENT 60 0 O086700299999 SUBENT O0867003 20030501 0000O086700300001 BIB 4 9 O086700300002 REACTION (7-N-14(16-S-32,EL)7-N-14,,DA,,RTH) O086700300003 MONITOR (79-AU-197(7-N-14,EL)79-AU-197,,DA) The cross section O086700300004 was assumed as Rutherford cross section. O086700300005 PART-DET (7-N-14) O086700300006 DETECTOR (SIBAR) Four the detectors were positioned at O086700300007 scattering angles of 117-75 degrees, corresponding to O086700300008 recoil angles of 14-N 20, 25, 30, and 40 degrees. O086700300009 The recoil angular resolution was +/- (0.9 - 1.5) O086700300010 degree. O086700300011 ENDBIB 9 0 O086700300012 NOCOMMON 0 0 O086700300013 DATA 3 47 O086700300014 EN ANG DATA O086700300015 MEV ADEG NO-DIM O086700300016 33.8643 20. 0.9824 O086700300017 33.8643 25. 0.9974 O086700300018 33.8643 30. 0.9632 O086700300019 33.8643 40. 1.0314 O086700300020 40.7492 20. 0.9978 O086700300021 40.7492 25. 0.9992 O086700300022 40.7492 30. 1.0335 O086700300023 40.7492 40. 0.9869 O086700300024 43.0436 20. 1.0051 O086700300025 43.0436 25. 1.0432 O086700300026 43.0436 30. 1.0539 O086700300027 43.0436 40. 1.0055 O086700300028 47.6335 20. 1.0147 O086700300029 47.6335 25. 0.992 O086700300030 47.6335 30. 0.9936 O086700300031 47.6335 40. 0.9292 O086700300032 49.929 20. 0.9575 O086700300033 49.929 25. 0.9679 O086700300034 49.929 30. 0.9337 O086700300035 49.929 40. 0.9148 O086700300036 52.2239 20. 0.7914 O086700300037 52.2239 25. 0.9461 O086700300038 52.2239 30. 1.0219 O086700300039 52.2239 40. 1.0245 O086700300040 53.3714 20. 0.749 O086700300041 53.3714 25. 0.8162 O086700300042 53.3714 30. 0.93 O086700300043 53.3714 40. 1.0233 O086700300044 54.5189 20. 0.6285 O086700300045 54.5189 25. 0.7192 O086700300046 54.5189 30. 0.8249 O086700300047 54.5189 40. 1.0773 O086700300048 56.8138 20. 0.4997 O086700300049 56.8138 25. 0.6214 O086700300050 56.8138 30. 0.6809 O086700300051 56.8138 40. 1.0068 O086700300052 59.1088 20. 0.2054 O086700300053 59.1088 25. 0.3053 O086700300054 59.1088 30. 0.4872 O086700300055 59.1088 40. 0.8175 O086700300056 61.4026 20. 0.1491 O086700300057 61.4026 25. 0.1711 O086700300058 61.4026 30. 0.2828 O086700300059 61.4026 40. 0.5978 O086700300060 63.6964 20. 0.0705 O086700300061 63.6964 25. 0.0889 O086700300062 63.6964 40. 0.3689 O086700300063 ENDDATA 49 0 O086700300064 ENDSUBENT 63 0 O086700399999 SUBENT O0867004 20030501 0000O086700400001 BIB 4 9 O086700400002 REACTION (8-O-16(16-S-32,EL)8-O-16,,DA,,RTH) O086700400003 MONITOR (79-AU-197(8-O-16,EL)79-AU-197,,DA) The cross section O086700400004 was assumed as Rutherford cross section. O086700400005 PART-DET (8-O-16) O086700400006 DETECTOR (SIBAR) Four the detectors were positioned at O086700400007 scattering angles of 112-72 degrees, corresponding to O086700400008 recoil angles of 16-O 20, 25, 30, and 40 degrees. O086700400009 The recoil angular resolution was +/- (0.9 - 1.5) O086700400010 degree. O086700400011 ENDBIB 9 0 O086700400012 NOCOMMON 0 0 O086700400013 DATA 3 50 O086700400014 EN ANG DATA O086700400015 MEV ADEG NO-DIM O086700400016 29.5487 20. 1.0127 O086700400017 29.5487 25. 0.9627 O086700400018 29.5487 30. 1.0276 O086700400019 29.5487 40. 0.963 O086700400020 35.5701 20. 1.0566 O086700400021 35.5701 25. 0.9712 O086700400022 35.5701 30. 0.9816 O086700400023 35.5701 40. 0.9761 O086700400024 38.5823 20. 0.9644 O086700400025 38.5823 25. 0.9671 O086700400026 38.5823 30. 0.9798 O086700400027 38.5823 40. 1.008 O086700400028 41.596 20. 1.0052 O086700400029 41.596 25. 1.044 O086700400030 41.596 30. 1.0952 O086700400031 41.596 40. 1.0317 O086700400032 43.6056 20. 0.9746 O086700400033 43.6056 25. 1.0158 O086700400034 43.6056 30. 0.9249 O086700400035 43.6056 40. 1.0289 O086700400036 46.6186 20. 0.9922 O086700400037 46.6186 25. 1.0776 O086700400038 46.6186 30. 1.04 O086700400039 46.6186 40. 1.0037 O086700400040 49.632 20. 1.0064 O086700400041 49.632 25. 0.9619 O086700400042 49.632 30. 0.9924 O086700400043 49.632 40. 0.9652 O086700400044 51.6412 20. 0.9879 O086700400045 51.6412 25. 0.8936 O086700400046 51.6412 30. 0.9582 O086700400047 51.6412 40. 1.0234 O086700400048 53.6503 20. 0.8844 O086700400049 53.6503 25. 0.9344 O086700400050 53.6503 30. 0.9417 O086700400051 53.6503 40. 0.9459 O086700400052 55.6595 20. 0.806 O086700400053 55.6595 25. 0.741 O086700400054 55.6595 30. 0.788 O086700400055 55.6595 40. 0.9124 O086700400056 57.6681 20. 0.4112 O086700400057 57.6681 25. 0.4763 O086700400058 57.6681 30. 0.5403 O086700400059 57.6681 40. 0.7697 O086700400060 59.6767 25. 0.2634 O086700400061 59.6767 30. 0.2814 O086700400062 59.6767 40. 0.5901 O086700400063 61.6854 25. 0.1768 O086700400064 61.6854 30. 0.1901 O086700400065 61.6854 40. 0.3797 O086700400066 ENDDATA 52 0 O086700400067 ENDSUBENT 66 0 O086700499999 ENDENTRY 4 0 O086799999999