ENTRY D4199 20081127 D064D419900000001 SUBENT D4199001 20081127 D064D419900100001 BIB 18 69 D419900100002 TITLE Excitation functions of alpha-induced nuclear reactionsD419900100003 on natural erbium D419900100004 AUTHOR (B.Kiraly, F.Tarkanyi, S.Takacs, A.Hermanne, D419900100005 S.F.Kovalev, A.V.Ignatyuk) D419900100006 INSTITUTE (3HUNDEB,2BLGVUB,4RUSFEI) D419900100007 REFERENCE (J,NIM/B,266,549,2008) D419900100008 (C,2007NICE,2,1371,2007) Preliminary data D419900100009 for 169Yb. D419900100010 FACILITY (CYCLO,2BLGVUB) CGR-560 cyclotron D419900100011 EXP-YEAR (2006) D419900100012 SAMPLE High purity natural foils, thicknesses: Er 32., D419900100013 Al 25.5, Ti 12. micron. D419900100014 METHOD (STTA,ACTIV,EXTB,GSPEC) D419900100015 Two stacks of 7 natural Er foils, interleaved with D419900100016 7 natural Ti monitor foils. In front of one of the D419900100017 two stacks an Al degrader foil was placed to ensure D419900100018 a small energy shift. D419900100019 Incident alpha energy: 38 MeV, D419900100020 beam currents: 119.5, 108.8 nA, D419900100021 irradiation times: 2.0, 2.6 h, respectively. D419900100022 No chemical separation. D419900100023 The spectra were registered on a PC-coupled HPGe gamma D419900100024 spectrometer. The acquisition started within 15 min D419900100025 after the end of bombardment. Each target foil was D419900100026 measured three times over a period of a month which D419900100027 rendered possible getting information about short and D419900100028 long half lived radionuclei and to follow cumulative D419900100029 processes as well. D419900100030 DETECTOR (HPGE) D419900100031 The samples were placed at a proper distance from the D419900100032 detector to avoid pile-up effects and coincidence D419900100033 losses. The detector efficiency was determined D419900100034 carefully by using standard sources. D419900100035 MONITOR (22-TI-0(A,X)24-CR-51,,SIG) D419900100036 MONIT-REF (,F.TARKANYI+,R,IAEA-TECDOC-1211,49,2001) Chapter 4 D419900100037 REL-REF (N,,ANDERSEN+,B,ANDERSEN,,1977) Volume 4 D419900100038 The mean bombarding energy of the beam in the D419900100039 subsequent foils was calculated following the D419900100040 polynomial approximation for stopping power of Ziegler.D419900100041 DECAY-DATA Decay data were taken from WWW Table of Radioactive D419900100042 Isotopes by Ekstrom and Firestone, database version: D419900100043 2/28/99. D419900100044 ERR-ANALYS (EN-ERR) The energy uncertainty of the beam at the D419900100045 first foil is 0.3 MeV which increases along the stack D419900100046 due to the energy straggling and the uncertainty of D419900100047 target thicknesses and reaches 0.9 MeV at the last D419900100048 foil. D419900100049 (ERR-T) The uncertainties of the cross sections were D419900100050 determined in the standard way: the linearly D419900100051 contributing independent processes were taken into D419900100052 account extracting square root of quadratically summed D419900100053 relative uncertainties, namely: D419900100054 * number of the bombarding particles (7%), D419900100055 * number of the target nuclei (3%), D419900100056 * decay data (3%), D419900100057 * detector efficiency (7%) and D419900100058 * peak area (1-10%). D419900100059 ADD-RES (COMP) The measured experimental data were compared to D419900100060 those found in the literature. D419900100061 (THEO) The measured experimental data were compared to D419900100062 and analyzed with theoretical calculations based on D419900100063 the model code ALICE-IPPE. D419900100064 (TTY-C) On the basis of the new experimental cross D419900100065 sections integral yields were calculated. D419900100066 FLAG (1.) Stack1 D419900100067 (2.) Stack2 D419900100068 STATUS (APRVD) S. Takacs, 2008.04.30 D419900100069 HISTORY (20080411C) KB D419900100070 (20080916A) SD: ref. on conf.proc. was corrected. D419900100071 ENDBIB 69 0 D419900100072 NOCOMMON 0 0 D419900100073 ENDSUBENT 72 0 D419900199999 SUBENT D4199002 20080411 D060D419900200001 BIB 3 3 D419900200002 REACTION (68-ER-0(A,X)70-YB-167,,SIG) D419900200003 DECAY-DATA (70-YB-167,17.5MIN,DG,113.34,0.554) D419900200004 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900200005 ENDBIB 3 0 D419900200006 NOCOMMON 0 0 D419900200007 DATA 5 12 D419900200008 EN EN-ERR DATA ERR-T FLAG D419900200009 MEV MEV MB MB NO-DIM D419900200010 16.2 0.7 0.08 0.01 2. D419900200011 17.2 0.7 0.74 0.12 1. D419900200012 21.0 0.6 1.63 0.18 2. D419900200013 21.9 0.6 2.85 0.32 1. D419900200014 25.2 0.5 0.93 0.11 2. D419900200015 26.0 0.5 1.65 0.20 1. D419900200016 29.0 0.4 11.9 1.3 2. D419900200017 29.7 0.4 45.4 5.2 1. D419900200018 32.5 0.4 79.4 8.9 2. D419900200019 33.1 0.4 171. 19. 1. D419900200020 35.7 0.3 135. 15. 2. D419900200021 36.3 0.3 252. 28. 1. D419900200022 ENDDATA 14 0 D419900200023 ENDSUBENT 22 0 D419900299999 SUBENT D4199003 20080411 D060D419900300001 BIB 3 7 D419900300002 REACTION (68-ER-0(A,X)70-YB-169,,SIG) D419900300003 Includes the contribution from the metastable state D419900300004 after its complete IT decay. D419900300005 DECAY-DATA (70-YB-169-G,32.026D,DG,130.52,0.1131, D419900300006 DG,307.74,0.1005) D419900300007 (70-YB-169-M,46.SEC) D419900300008 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900300009 ENDBIB 7 0 D419900300010 NOCOMMON 0 0 D419900300011 DATA 5 13 D419900300012 EN EN-ERR DATA ERR-T FLAG D419900300013 MEV MEV MB MB NO-DIM D419900300014 10.2 0.9 0.03 0.02 2. D419900300015 16.2 0.7 5.58 0.69 2. D419900300016 17.2 0.7 32.0 3.8 1. D419900300017 21.0 0.6 148. 17. 2. D419900300018 21.9 0.6 200. 23. 1. D419900300019 25.2 0.5 261. 30. 2. D419900300020 26.0 0.5 270. 31. 1. D419900300021 29.0 0.4 373. 44. 2. D419900300022 29.7 0.4 415. 48. 1. D419900300023 32.5 0.4 469. 55. 2. D419900300024 33.1 0.4 480. 56. 1. D419900300025 35.7 0.3 484. 57. 2. D419900300026 36.3 0.3 487. 57. 1. D419900300027 ENDDATA 15 0 D419900300028 ENDSUBENT 27 0 D419900399999 SUBENT D4199004 20080411 D060D419900400001 BIB 3 6 D419900400002 REACTION (68-ER-0(A,X)69-TM-165,CUM,SIG) D419900400003 Includes the contribution from 165Yb after its D419900400004 complete decay. D419900400005 DECAY-DATA (69-TM-165,30.06HR,DG,242.92,0.355) D419900400006 (70-YB-165,9.9MIN) D419900400007 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900400008 ENDBIB 6 0 D419900400009 NOCOMMON 0 0 D419900400010 DATA 5 13 D419900400011 EN EN-ERR DATA ERR-T FLAG D419900400012 MEV MEV MB MB NO-DIM D419900400013 10.2 0.9 0.006 0.001 2. D419900400014 16.2 0.7 0.024 0.004 2. D419900400015 17.2 0.7 0.11 0.01 1. D419900400016 21.0 0.6 0.51 0.06 2. D419900400017 21.9 0.6 0.70 0.08 1. D419900400018 25.2 0.5 0.48 0.06 2. D419900400019 26.0 0.5 0.34 0.04 1. D419900400020 29.0 0.4 0.25 0.05 2. D419900400021 29.7 0.4 1.00 0.12 1. D419900400022 32.5 0.4 6.34 0.72 2. D419900400023 33.1 0.4 5.52 0.62 1. D419900400024 35.7 0.3 18.7 2.1 2. D419900400025 36.3 0.3 22.2 2.5 1. D419900400026 ENDDATA 15 0 D419900400027 ENDSUBENT 26 0 D419900499999 SUBENT D4199005 20080411 D060D419900500001 BIB 3 6 D419900500002 REACTION (68-ER-0(A,X)69-TM-167,CUM,SIG) D419900500003 Includes the contribution from 167Yb after its D419900500004 complete decay. D419900500005 DECAY-DATA (69-TM-167,9.25D,DG,207.80,0.41) D419900500006 (70-YB-167,17.5MIN) D419900500007 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900500008 ENDBIB 6 0 D419900500009 NOCOMMON 0 0 D419900500010 DATA 5 12 D419900500011 EN EN-ERR DATA ERR-T FLAG D419900500012 MEV MEV MB MB NO-DIM D419900500013 16.2 0.7 0.32 0.04 2. D419900500014 17.2 0.7 2.73 0.31 1. D419900500015 21.0 0.6 5.65 0.64 2. D419900500016 21.9 0.6 7.29 0.82 1. D419900500017 25.2 0.5 4.07 0.46 2. D419900500018 26.0 0.5 4.71 0.53 1. D419900500019 29.0 0.4 43.5 4.9 2. D419900500020 29.7 0.4 107. 12. 1. D419900500021 32.5 0.4 312. 35. 2. D419900500022 33.1 0.4 393. 44. 1. D419900500023 35.7 0.3 531. 60. 2. D419900500024 36.3 0.3 592. 66. 1. D419900500025 ENDDATA 14 0 D419900500026 ENDSUBENT 25 0 D419900599999 SUBENT D4199006 20080411 D060D419900600001 BIB 3 9 D419900600002 REACTION (68-ER-0(A,X)69-TM-172,IND,SIG) D419900600003 Although formation of 172Er is energetically allowed D419900600004 it could not be identified in the measured spectra in D419900600005 spite of its two strong gamma lines so the feeding of D419900600006 172Tm by this parent nucleus is negligible. D419900600007 DECAY-DATA (69-TM-172,63.6HR,DG,1387.09,0.056) D419900600008 (68-ER-172,49.3HR,DG,407.34,0.421, D419900600009 DG,610.06,0.442) D419900600010 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900600011 ENDBIB 9 0 D419900600012 NOCOMMON 0 0 D419900600013 DATA 5 7 D419900600014 EN EN-ERR DATA ERR-T FLAG D419900600015 MEV MEV MB MB NO-DIM D419900600016 26.0 0.5 1.24 0.31 1. D419900600017 29.0 0.4 3.27 0.98 2. D419900600018 29.7 0.4 2.54 0.83 1. D419900600019 32.5 0.4 3.0 1.3 2. D419900600020 33.1 0.4 4.28 0.92 1. D419900600021 35.7 0.3 6.3 1.7 2. D419900600022 36.3 0.3 6.5 1.2 1. D419900600023 ENDDATA 9 0 D419900600024 ENDSUBENT 23 0 D419900699999 SUBENT D4199007 20080411 D060D419900700001 BIB 3 3 D419900700002 REACTION (68-ER-0(A,X)69-TM-173,,SIG) D419900700003 DECAY-DATA (69-TM-173,8.24HR,DG,398.9,0.88) D419900700004 STATUS (TABLE) Data were taken from Table 2 of the Ref. D419900700005 ENDBIB 3 0 D419900700006 NOCOMMON 0 0 D419900700007 DATA 5 10 D419900700008 EN EN-ERR DATA ERR-T FLAG D419900700009 MEV MEV MB MB NO-DIM D419900700010 21.0 0.6 0.04 0.01 2. D419900700011 21.9 0.6 0.13 0.01 1. D419900700012 25.2 0.5 0.43 0.05 2. D419900700013 26.0 0.5 0.54 0.06 1. D419900700014 29.0 0.4 0.66 0.08 2. D419900700015 29.7 0.4 0.68 0.08 1. D419900700016 32.5 0.4 0.61 0.07 2. D419900700017 33.1 0.4 0.60 0.07 1. D419900700018 35.7 0.3 0.52 0.06 2. D419900700019 36.3 0.3 0.56 0.06 1. D419900700020 ENDDATA 12 0 D419900700021 ENDSUBENT 20 0 D419900799999 ENDENTRY 7 0 D419999999999