ENTRY O1796 20091103 O041O179600000001 SUBENT O1796001 20091103 O041O179600100001 BIB 12 61 O179600100002 TITLE Excitation functions of proton-induced reactions on O179600100003 natural hafnium- Production of 177Lu for medical use. O179600100004 AUTHOR (T.Siiskonen, J.Huikari, T.Haavisto, J.Bergman, O179600100005 S.-J.Heselius, J.-O.Lill, T.Loennroth,K.Peraejaervi, O179600100006 V.-P.Vartti) O179600100007 INSTITUTE (2SF SF) STUK - Radiation and Nuclear Safety O179600100008 Authority, P.O. Box 14, FI-00881 Helsinki, Finland O179600100009 (2SF ABA) Department of Physics and Accelerator O179600100010 Laboratory, Abo Akademi University, Turku, Finland O179600100011 REFERENCE (J,NIM/B,267,3500,2009) O179600100012 FACILITY (ISOCY,2SF ABA) the external beam of the Abo Akademi O179600100013 University 103 cm isochronous variable-energy AVF O179600100014 cyclotron (MGC-20). O179600100015 SAMPLE Nine Hf-foils, nominal thickness 8 mum, purity 97.0%, O179600100016 interleaved with Al, 40 and 80 mum and high-purity Cu O179600100017 monitor foils, 7 mum. O179600100018 METHOD (ACTIV,STTA,EXTB,GSPEC,BCINT) O179600100019 After the irradiation, the Hf foils were analysed with O179600100020 a gamma spectrometer. Two sets of measurements were O179600100021 done, the first starting after about 24 h decay time, O179600100022 the second after about 3 weeks decay time. The 3-week O179600100023 decay time for the determination of 177Lu was needed O179600100024 because of interfering gamma lines from 177Ta and high O179600100025 background produced by other, short-living Ta isotopes.O179600100026 DETECTOR (HPGE) The HPGe detector (Canberra GAMMA-X with O179600100027 20.7% relative efficiency) used for determining the O179600100028 activity was calibrated using 57Co, 60Co, 137Cs and O179600100029 152Eu point sources. O179600100030 ERR-ANALYS (ERR-T) The main contribution to the uncertainty O179600100031 (one standard deviation) in the cross-section values O179600100032 comes from the following sources: O179600100033 (ERR-1,3.0,8.0). HPGe efficiency calibration 3-8%, O179600100034 depending on the energy and the least-squares nuclide O179600100035 fit. O179600100036 (ERR-2).Error in the beam intensity is 5%. O179600100037 (ERR-3).Error in the number of target atoms in the beamO179600100038 is 5%. O179600100039 (ERR-4).Error in the peak-area fitting with O179600100040 additional exponential tails and background fitted to O179600100041 individual peaks is 1%. O179600100042 UniSAMPO- Shaman analysis software given the activity O179600100043 of the nuclide and associated uncertainty at the end ofO179600100044 the irradiation. This reported uncertainty includes theO179600100045 uncertainties of the efficiency calibration, peak-area O179600100046 fitting, the decay data and the half-life. Therefore, O179600100047 the estimated uncertainty of the cross-section values O179600100048 was obtained by adding quadratically the activity O179600100049 uncertainty from UniSAMPO-Shaman to the beam-intensity O179600100050 and target-thickness uncertainties. O179600100051 (EN-ERR).Uncertainty in the energy is reported by O179600100052 authors in table 1-The beam-energy uncertainty is O179600100053 estimated to be +-300 keV in the first foils and O179600100054 increase to +-750 keV in the last foil.This uncertaintyO179600100055 includes the energy uncertainty of the extracted beam, O179600100056 the effect of the non-uniform foil thicknesses as well O179600100057 as uncertainties in the mean mass thicknesses and the O179600100058 initial beam-energy spread. O179600100059 ADD-RES (TTY-C).The thick-target yields derived from the O179600100060 calculated cross section values. O179600100061 STATUS (TABLE) date from the Table 2. O179600100062 HISTORY (20091103C) sb O179600100063 ENDBIB 61 0 O179600100064 COMMON 3 3 O179600100065 ERR-2 ERR-3 ERR-4 O179600100066 PER-CENT PER-CENT PER-CENT O179600100067 5.0 5.0 1. O179600100068 ENDCOMMON 3 0 O179600100069 ENDSUBENT 68 0 O179600199999 SUBENT O1796002 20091103 O041O179600200001 BIB 3 4 O179600200002 REACTION (72-HF-0(P,X)71-LU-177-G,IND,SIG) O179600200003 DECAY-DATA (71-LU-177-G,6.734D,DG,112.95,0.064,DG,208.366,0.11) O179600200004 COMMENT *By authors*.No gamma rays associated with Lu-177-m O179600200005 or Yb isotopes were observed in the irradiated samples O179600200006 ENDBIB 4 0 O179600200007 NOCOMMON 0 0 O179600200008 DATA 4 7 O179600200009 EN EN-ERR DATA ERR-T O179600200010 MEV MEV MB MB O179600200011 8.60 0.60 0.006 0.015 O179600200012 9.81 0.55 0.04 0.02 O179600200013 10.92 0.50 0.07 0.04 O179600200014 12.28 0.45 0.06 0.05 O179600200015 13.55 0.40 0.15 0.05 O179600200016 14.99 0.35 0.34 0.07 O179600200017 16.58 0.30 0.61 0.10 O179600200018 ENDDATA 9 0 O179600200019 ENDSUBENT 18 0 O179600299999 SUBENT O1796003 20091103 O041O179600300001 BIB 3 6 O179600300002 REACTION (72-HF-0(P,X)73-TA-175,,SIG) O179600300003 DECAY-DATA (73-TA-175,10.5HR,DG,125.9,0.084,DG,207.4,0.14, O179600300004 DG,266.9,0.108,DG,348.5,0.12) O179600300005 COMMENT *By authors*.The cross sections for the production of O179600300006 other Ta isotopes were measured one day after the O179600300007 irradiation. O179600300008 ENDBIB 6 0 O179600300009 NOCOMMON 0 0 O179600300010 DATA 4 3 O179600300011 EN EN-ERR DATA ERR-T O179600300012 MEV MEV MB MB O179600300013 12.28 0.45 9.1 0.7 O179600300014 13.55 0.40 21.3 1.6 O179600300015 16.58 0.30 49. 4. O179600300016 ENDDATA 5 0 O179600300017 ENDSUBENT 16 0 O179600399999 SUBENT O1796004 20091103 O041O179600400001 BIB 3 6 O179600400002 REACTION (72-HF-0(P,X)73-TA-176,,SIG) O179600400003 DECAY-DATA (73-TA-176,8.09HR,DG,201.84,0.057,DG,710.5,0.054, O179600400004 DG,1159.3,0.247,DG,1224.96,0.057) O179600400005 COMMENT *By authors*.The cross sections for the production of O179600400006 other Ta isotopes were measured one day after the O179600400007 irradiation. O179600400008 ENDBIB 6 0 O179600400009 NOCOMMON 0 0 O179600400010 DATA 4 7 O179600400011 EN EN-ERR DATA ERR-T O179600400012 MEV MEV MB MB O179600400013 7.23 0.65 1.31 0.12 O179600400014 8.60 0.60 4.8 0.4 O179600400015 9.81 0.55 10.6 0.8 O179600400016 10.92 0.50 22.8 1.7 O179600400017 12.28 0.45 69. 5. O179600400018 13.55 0.40 101. 7. O179600400019 16.58 0.30 160. 11. O179600400020 ENDDATA 9 0 O179600400021 ENDSUBENT 20 0 O179600499999 SUBENT O1796005 20091103 O041O179600500001 BIB 3 5 O179600500002 REACTION (72-HF-0(P,X)73-TA-177,,SIG) O179600500003 DECAY-DATA (73-TA-177,2.357D,DG,112.9,0.072,DG,208.4,0.00094) O179600500004 COMMENT *By authors*.The cross sections for 177Ta production O179600500005 were measured after the 3 weeks decay time to improve O179600500006 the peak-to-background ratio at 113 and 208 keV. O179600500007 ENDBIB 5 0 O179600500008 NOCOMMON 0 0 O179600500009 DATA 4 9 O179600500010 EN EN-ERR DATA ERR-T O179600500011 MEV MEV MB MB O179600500012 5.66 0.75 0.45 0.05 O179600500013 7.23 0.65 5.1 0.4 O179600500014 8.60 0.60 18.5 1.5 O179600500015 9.81 0.55 43. 4. O179600500016 10.92 0.50 103. 8. O179600500017 12.28 0.45 155. 13. O179600500018 13.55 0.40 182. 13. O179600500019 14.99 0.35 197. 20. O179600500020 16.58 0.30 263. 23. O179600500021 ENDDATA 11 0 O179600500022 ENDSUBENT 21 0 O179600599999 SUBENT O1796006 20091103 O041O179600600001 BIB 3 6 O179600600002 REACTION (72-HF-0(P,X)73-TA-178,,SIG) O179600600003 DECAY-DATA (73-TA-178,2.36HR,DG,213.434,0.814,DG,325.557,0.941, O179600600004 DG,331.613,0.312,DG,426.36,0.97) O179600600005 COMMENT *By authors*.The cross sections for the production of O179600600006 other Ta isotopes were measured one day after the O179600600007 irradiation. O179600600008 ENDBIB 6 0 O179600600009 NOCOMMON 0 0 O179600600010 DATA 4 5 O179600600011 EN EN-ERR DATA ERR-T O179600600012 MEV MEV MB MB O179600600013 9.81 0.55 7.9 0.8 O179600600014 10.92 0.50 19.1 1.8 O179600600015 12.28 0.45 26. 3. O179600600016 13.55 0.40 32. 4. O179600600017 16.58 0.30 53. 6. O179600600018 ENDDATA 7 0 O179600600019 ENDSUBENT 18 0 O179600699999 ENDENTRY 6 0 O179699999999