ENTRY O0467 20220107 O086O046700000001 SUBENT O0467001 20220107 O086O046700100001 BIB 15 55 O046700100002 TITLE Production of Na-24 and Mg-28 by the interaction of O046700100003 uranium with 15-600 MeV protons O046700100004 AUTHOR (I.Haldorsen,S.Engelsen,D.Eriksen,E.Hagebo,T.Johansen, O046700100005 A.C.Pappas) O046700100006 INSTITUTE (2NOROSL) O046700100007 REFERENCE (J,JIN,43,2197,1981) O046700100008 FACILITY (SYNCY,2SWDUPP) At 15-170 MeV. O046700100009 (SYNCY,2ZZZCER) At 160-570 MeV. O046700100010 SAMPLE The targets were uranium foils, delivered as high O046700100011 purity material. Three different foils of thickness O046700100012 2.54 mm, 0.127 mm and 0.0254 mm, respectively, were O046700100013 used during the course of the experiments. O046700100014 Before irradiation, the uranium foils were cleaned withO046700100015 approx. 6m HNO(3) for a few minutes to remove the O046700100016 oxide layer, washed with ethanol and dried. O046700100017 The Uppsala irradiations were performed with the O046700100018 uranium foil of thickness approx. 2.54 mm, the CERN O046700100019 with foils of thicknesses 0.127 mm and 0.0254 mm. O046700100020 table 2 of the paper contains results of analysis of O046700100021 different uranium foils for contaminations. O046700100022 DETECTOR (GELI) O046700100023 METHOD (INTB) O046700100024 The duration of the internal irradiations was in O046700100025 Uppsala 4 hr and the beam intensity 0.25-0.45 uA, O046700100026 at CERN 1 hr and 0.84-1.00 uA. O046700100027 (CHSEP) O046700100028 (ACTIV) At 600 MeV the activities of Na-24 and Mg-28 O046700100029 were measured by direct gamma-counting of the O046700100030 irradiated target, using the fission product I-135 as O046700100031 internal monitor and/or using separate aluminium O046700100032 monitor foils. O046700100033 MONITOR (92-U-238(P,F)42-MO-99,,SIG) O046700100034 MONIT-REF (C0370001,P.C.Stevenson+,J,PR,111,886,1958) O046700100035 (C0374001,J.M.Alexander+,J,PR,129,1826,1963) O046700100036 DECAY-MON (42-MO-99,66.2HR,DG,181.,0.068) O046700100037 COMMENT /by authors/ The measured cross sections are averages O046700100038 based on two or more runs and corrected for O046700100039 contributions from impurities in the target. O046700100040 ERR-ANALYS (DATA-ERR) The over-all uncertainty in the measured O046700100041 cross sections, including the counting statistics and O046700100042 errors in detector efficiency, chemical yield O046700100043 determination, branching ratio and contribution from O046700100044 impurities is estimated to about 10% for Mg-28 and O046700100045 about 10-20% for Na-24. O046700100046 However, the cross section values for Na-24 for O046700100047 energies of less than 160 MeV will have a greater O046700100048 uncertainty, due to the large discrepancies in the O046700100049 determination of the impurities in the targets used O046700100050 in these experiments. O046700100051 STATUS (TABLE) Tbl.4 from J.Inorg.Nucl.Chem.,43(1981)2197 O046700100052 HISTORY (19980623C) O046700100053 (19980729U) Last checking has been done. O046700100054 (20000426A) DATE is corrected O046700100055 (20220107U) SD: Corrections in all Subents. O046700100056 ERR-T -> DATA-ERR. O046700100057 ENDBIB 55 0 O046700100058 NOCOMMON 0 0 O046700100059 ENDSUBENT 58 0 O046700199999 SUBENT O0467002 20220107 O086O046700200001 BIB 3 4 O046700200002 REACTION (92-U-0(P,X)11-NA-24,CUM,SIG) O046700200003 DECAY-DATA (11-NA-24,15.HR,DG,1368.,1.,DG,2754.,0.9985) O046700200004 HISTORY (20220107A) SD: SF4=Na-24g -> Na-24 in REACTION code. O046700200005 ERR-T -> DATA-ERR. O046700200006 ENDBIB 4 0 O046700200007 NOCOMMON 0 0 O046700200008 DATA 4 16 O046700200009 EN DATA DATA-MAX DATA-ERR O046700200010 MEV MB MB MB O046700200011 15. 3.E-05 O046700200012 30. 9.E-05 8.E-05 O046700200013 50. 6.E-04 3.E-04 O046700200014 80. 4.5E-03 2.2E-03 O046700200015 120. 9.2E-03 4.5E-03 O046700200016 150. 1.3E-02 0.4E-02 O046700200017 160. 1.4E-02 0.2E-02 O046700200018 170. 1.6E-02 0.3E-02 O046700200019 190. 1.9E-02 0.3E-02 O046700200020 250. 3.15E-02 0.6E-02 O046700200021 320. 4.E-02 0.6E-02 O046700200022 400. 5.4E-02 0.6E-02 O046700200023 450. 7.3E-02 0.7E-02 O046700200024 500. 1.1E-01 0.1E-01 O046700200025 570. 1.75E-01 0.18E-01 O046700200026 600. 1.93E-01 0.14E-01 O046700200027 ENDDATA 18 0 O046700200028 ENDSUBENT 27 0 O046700299999 SUBENT O0467003 20220107 O086O046700300001 BIB 3 3 O046700300002 REACTION (92-U-0(P,X)12-MG-28,CUM,SIG) O046700300003 DECAY-DATA (12-MG-28,21.1HR,DG,1778.,1.) O046700300004 HISTORY (20220107U) SD: ERR-T -> DATA-ERR. O046700300005 ENDBIB 3 0 O046700300006 NOCOMMON 0 0 O046700300007 DATA 3 14 O046700300008 EN DATA DATA-ERR O046700300009 MEV MB MB O046700300010 30. 9.6E-05 2.E-05 O046700300011 50. 5.3E-04 1.E-04 O046700300012 100. 1.9E-03 0.4E-03 O046700300013 150. 3.8E-03 0.4E-03 O046700300014 160. 4.7E-03 0.5E-03 O046700300015 170. 5.8E-03 0.6E-03 O046700300016 190. 7.4E-03 0.7E-03 O046700300017 250. 1.6E-02 0.1E-02 O046700300018 320. 2.64E-02 0.2E-02 O046700300019 400. 3.35E-02 0.6E-02 O046700300020 450. 3.83E-02 0.25E-02 O046700300021 500. 6.17E-02 0.45E-02 O046700300022 570. 1.E-01 0.07E-01 O046700300023 600. 1.05E-01 0.1E-01 O046700300024 ENDDATA 16 0 O046700300025 ENDSUBENT 24 0 O046700399999 ENDENTRY 3 0 O046799999999