ENTRY O1512 20221212 O092O1512 0 1 SUBENT O1512001 20221212 O092O1512 1 1 BIB 13 61 O1512 1 2 TITLE Excitation functions of (a,xn) reactions on Rb-natural O1512 1 3 and Sr-natural from threshold up to 26 MeV: possibilityO1512 1 4 of production of Y-87, Y-88 and Zr-89 O1512 1 5 AUTHOR (S.A.Kandil, I.Spahn, B.Scholten, Z.A.Saleh, O1512 1 6 S.M.M.Saad, H.H.Coenen, S.M.Qaim) O1512 1 7 INSTITUTE (2GERJUL,3EGYCAI) O1512 1 8 REFERENCE (J,ARI,65,561,2007) O1512 1 9 SAMPLE Nat-Rb(Cl), 99.99% and nat-SrCO(3), 99.99% were used. O1512 1 10 Thin samples of strontium carbonate were prepared. A O1512 1 11 thin Al-foil, 25-mu-m thick and 13-mm in diameter, was O1512 1 12 used as backing. A suspension of very fine strontium O1512 1 13 carbonate in ethanol was obtained by mixing and O1512 1 14 stirring. To avoid contamination, the surface of the O1512 1 15 sample was covered with a 10-mu-m thick Al-foil. O1512 1 16 For preparing samples of rubidium chloride, the powder O1512 1 17 was pressed on a Al-foil of 10 mu-m thickness and 13-mmO1512 1 18 diameter under a pressure of 6 ton/cm**2 for 10-15-min.O1512 1 19 Samples of thickness 18-22-mg/cm**2 were obtained. TheyO1512 1 20 were mechanically stable. Also in this case each sampleO1512 1 21 was covered with a 10 mum thick Al-foil. O1512 1 22 ADD-RES (COMP).With available in the literature data. O1512 1 23 Integral yields of the products were calculated- O1512 1 24 nuclide energy range yield O1512 1 25 MeV MBq/muahr O1512 1 26 Y-88 15.-5. 0.04 O1512 1 27 20.-5. 0.07 O1512 1 28 26.-5. 0.08 O1512 1 29 Y-87 26.-13. 11.2 O1512 1 30 26.-15. 11.0 O1512 1 31 26.-20. 8.2 O1512 1 32 Zr-89 15.-8.5 0.3 O1512 1 33 20.-8.5 0.9 O1512 1 34 26.-8.5 1.6 O1512 1 35 MONITOR (29-CU-0(A,X)30-ZN-65,,SIG) O1512 1 36 (22-TI-0(A,X)24-CR-51,,SIG) O1512 1 37 MONIT-REF (,F.Tarkanyi+,R,IAEA-TECDOC-1211,126,2001) beam O1512 1 38 monitor reaction. O1512 1 39 DETECTOR (HPGE) HP(Ge) detector of 145-cm**3 active volume. O1512 1 40 FACILITY (CYCLO,2GERJUL) The compact CV-28 cyclotron O1512 1 41 METHOD (STTA,BCINT) O1512 1 42 ERR-ANALYS (ERR-T) The total uncertainty in the measured cross O1512 1 43 section was obtained by taking the square root of the O1512 1 44 sum of the squares of all the estimated individual O1512 1 45 uncertainties and was 15%. O1512 1 46 (ERR-1,,1.) The error in average target thickness is O1512 1 47 less than 1%. O1512 1 48 (ERR-2) The error in target non-homogeneity is 4%. O1512 1 49 (ERR-3,5.,10.) The error in the detector O1512 1 50 efficiency is 5-10%. O1512 1 51 (ERR-4,,4.) The error in counting statistics and peak O1512 1 52 area analysis is less than 4%. O1512 1 53 (ERR-5,8.,10.) The error in beam current is 8-10%. O1512 1 54 (EN-ERR) The uncertainty in the alpha-particle energy O1512 1 55 effective at a sample ranged between 0.8 and 1.8-MeV O1512 1 56 for Rb(Cl) samples, the highest uncertainty being O1512 1 57 associated with the samples at the end of the stack. O1512 1 58 For SrCO(3) samples, it was only between 0.4 and O1512 1 59 0.7-MeV. O1512 1 60 HISTORY (20070508C) SB O1512 1 61 (20070510U) Last checking has been done. O1512 1 62 (20221212A) SD: Corrections in all Subents. O1512 1 63 ENDBIB 61 0 O1512 1 64 COMMON 1 3 O1512 1 65 ERR-2 O1512 1 66 PER-CENT O1512 1 67 4. O1512 1 68 ENDCOMMON 3 0 O1512 1 69 ENDSUBENT 68 0 O1512 199999 SUBENT O1512002 20221212 O092O1512 2 1 BIB 5 8 O1512 2 2 REACTION (37-RB-0(A,X)39-Y-88,,SIG) O1512 2 3 DECAY-DATA (39-Y-88,106.6D,DG,898.,0.937,DG,1836.,0.992) O1512 2 4 REL-REF (A,P0064001,S.Iwata,J,JPJ,17,1323,1962) Within energy O1512 2 5 17-25-MeV, but have some discrepancy over the energy O1512 2 6 range 13-17-MeV. O1512 2 7 (D,A0284001,Y.Homma+,J,ARI,31,399,1980) O1512 2 8 STATUS (TABLE) Tbl.2 from Appl.Rad.Isot.,65(2007)561 O1512 2 9 HISTORY (20221212U) SD: DATA-ERR -> ERR-T; STATUS added. O1512 2 10 ENDBIB 8 0 O1512 2 11 NOCOMMON 0 0 O1512 2 12 DATA 4 14 O1512 2 13 EN EN-ERR DATA ERR-T O1512 2 14 MEV MEV MB MB O1512 2 15 5.6 1.8 17. 3. O1512 2 16 10.8 1.2 74. 11. O1512 2 17 10.9 1.1 105. 16. O1512 2 18 11.5 1.0 222. 33. O1512 2 19 12.7 1.1 178. 27. O1512 2 20 14.3 1.1 322. 48. O1512 2 21 17.2 0.9 240. 36. O1512 2 22 17.2 0.7 206. 31. O1512 2 23 17.4 0.9 271. 41. O1512 2 24 18.8 0.9 95. 14. O1512 2 25 21.0 0.9 64. 10. O1512 2 26 21.9 0.8 33. 5. O1512 2 27 24.1 0.9 44. 8. O1512 2 28 24.2 0.8 60. 10. O1512 2 29 ENDDATA 16 0 O1512 2 30 ENDSUBENT 29 0 O1512 299999 SUBENT O1512003 20221212 O092O1512 3 1 BIB 6 10 O1512 3 2 REACTION (37-RB-0(A,X)39-Y-87-M,,SIG) O1512 3 3 DECAY-DATA (39-Y-87-M,13.4HR,DG,380.8,0.78) O1512 3 4 REL-REF (D,A0284001,Y.Homma+,J,ARI,31,399,1980) O1512 3 5 COMMENT *By authors*.The cross sections are good agreement withO1512 3 6 the data of Levkovskij (Inter-Vesti, Moscow,1991) in O1512 3 7 the energy range of 20-25-MeV. Below 20-MeV, there O1512 3 8 appears to be an energy shift of about 1-MeV between O1512 3 9 present data and Levkovskij's data. See A0510 O1512 3 10 STATUS (TABLE) Tbl.2 from Appl.Rad.Isot.,65(2007)561 O1512 3 11 HISTORY (20221212U) SD: DATA-ERR -> ERR-T; STATUS added. O1512 3 12 ENDBIB 10 0 O1512 3 13 NOCOMMON 0 0 O1512 3 14 DATA 4 9 O1512 3 15 EN EN-ERR DATA ERR-T O1512 3 16 MEV MEV MB MB O1512 3 17 14.3 1.1 152. 23. O1512 3 18 17.2 0.9 318. 48. O1512 3 19 17.2 0.7 275. 41. O1512 3 20 17.4 0.9 342. 51. O1512 3 21 18.8 0.9 389. 58. O1512 3 22 21.0 0.9 634. 95. O1512 3 23 21.9 0.8 583. 87. O1512 3 24 24.1 0.9 658. 99. O1512 3 25 24.2 0.8 894. 134. O1512 3 26 ENDDATA 11 0 O1512 3 27 ENDSUBENT 26 0 O1512 399999 SUBENT O1512004 20221212 O092O1512 4 1 BIB 6 16 O1512 4 2 REACTION (37-RB-0(A,X)39-Y-87,,SIG) O1512 4 3 DECAY-DATA (39-Y-87-M,13.4HR,DG,380.8,0.78) O1512 4 4 (39-Y-87-G,79.8HR,DG,388.5,0.82,DG,484.8,0.897) O1512 4 5 REL-REF (D,A0284001,S.Iwata,J,JPJ,17,1323,1962) O1512 4 6 (D,A0111001,R.Guin+,J,RCA,88,435,2000) O1512 4 7 COMMENT *By authors*.The ground state was done after complete O1512 4 8 decay of the metastable state, all the data for the O1512 4 9 formation of Y-87 represent the sum of the O1512 4 10 cross-sections of the two reactions O1512 4 11 the data of Levkovskij (Inter-Vesti, Moscow,1991) due O1512 4 12 to the very low sigma-ground values, the summed cross O1512 4 13 section is also rather low and the sudden decrease O1512 4 14 beyond about 25-MeV is not explainable. See a0510 O1512 4 15 STATUS (TABLE) Tbl.2 from Appl.Rad.Isot.,65(2007)561 O1512 4 16 HISTORY (20221212A) SD: SF1=Rb-85 -> Rb-0; SF3=2N -> X in O1512 4 17 REACTION code. DATA-ERR -> ERR-T; STATUS added. O1512 4 18 ENDBIB 16 0 O1512 4 19 NOCOMMON 0 0 O1512 4 20 DATA 4 9 O1512 4 21 EN EN-ERR DATA ERR-T O1512 4 22 MEV MEV MB MB O1512 4 23 14.3 1.1 282. 42. O1512 4 24 17.2 0.9 533. 80. O1512 4 25 17.2 0.7 439. 66. O1512 4 26 17.4 0.9 529. 79. O1512 4 27 18.8 0.9 638. 96. O1512 4 28 21.0 0.9 808. 121. O1512 4 29 21.9 0.8 880. 132. O1512 4 30 24.1 0.9 1003. 151. O1512 4 31 24.2 0.8 1057. 159. O1512 4 32 ENDDATA 11 0 O1512 4 33 ENDSUBENT 32 0 O1512 499999 SUBENT O1512005 20221212 O092O1512 5 1 BIB 5 9 O1512 5 2 REACTION (38-SR-0(A,X)40-ZR-89-G,M+,SIG) O1512 5 3 DECAY-DATA (40-ZR-89-G,78.4HR,DG,909.,1.) O1512 5 4 COMMENT *By authors*.The cross sections are good agreement withO1512 5 5 the data of Levkovskij (Inter-Vesti, Moscow,1991) in O1512 5 6 the energy range of 13-24-MeV. Below 13-MeV, present O1512 5 7 data strengh then the database. See a0510 O1512 5 8 STATUS (TABLE) Tbl.3 from Appl.Rad.Isot.,65(2007)561 O1512 5 9 HISTORY (20221212A) SD: SF4=Zr-89 -> Zr-89g; SF5=M+ in O1512 5 10 REACTION code. DATA-ERR -> ERR-T; STATUS added. O1512 5 11 ENDBIB 9 0 O1512 5 12 NOCOMMON 0 0 O1512 5 13 DATA 4 16 O1512 5 14 EN EN-ERR DATA ERR-T O1512 5 15 MEV MEV MB MB O1512 5 16 8.5 0.7 12. 2. O1512 5 17 10.4 0.6 19. 3. O1512 5 18 10.7 0.6 31. 5. O1512 5 19 12.8 0.6 54. 8. O1512 5 20 13.6 0.6 54. 8. O1512 5 21 14.7 0.6 58. 9. O1512 5 22 15.0 0.6 67. 10. O1512 5 23 16.7 0.6 89. 13. O1512 5 24 18.5 0.6 90. 14. O1512 5 25 19.0 0.7 88. 13. O1512 5 26 19.7 0.6 90. 14. O1512 5 27 21.2 0.6 96. 14. O1512 5 28 22.6 0.6 92. 14. O1512 5 29 22.8 0.6 80. 12. O1512 5 30 24.2 0.6 92. 14. O1512 5 31 25.3 0.7 70. 11. O1512 5 32 ENDDATA 18 0 O1512 5 33 ENDSUBENT 32 0 O1512 599999 SUBENT O1512006 20221212 O092O1512 6 1 BIB 5 7 O1512 6 2 REACTION (38-SR-0(A,X)40-ZR-88,,SIG) O1512 6 3 DECAY-DATA (40-ZR-88,83.4D,DG,393.,0.97) O1512 6 4 COMMENT *By authors*. Present experimental results confirm theO1512 6 5 normalised data of Levkovskij (Inter-Vesti, Moscow, O1512 6 6 1991) up to 25-MeV. See a0510 O1512 6 7 STATUS (TABLE) Tbl.3 from Appl.Rad.Isot.,65(2007)561 O1512 6 8 HISTORY (20221212U) SD: DATA-ERR -> ERR-T; STATUS added. O1512 6 9 ENDBIB 7 0 O1512 6 10 NOCOMMON 0 0 O1512 6 11 DATA 4 11 O1512 6 12 EN EN-ERR DATA ERR-T O1512 6 13 MEV MEV MB MB O1512 6 14 14.7 0.6 2. 1. O1512 6 15 15.0 0.6 3. 1. O1512 6 16 16.7 0.6 9. 4. O1512 6 17 18.5 0.6 42. 6. O1512 6 18 19.0 0.7 36. 5. O1512 6 19 19.7 0.6 27. 4. O1512 6 20 21.2 0.6 70. 10. O1512 6 21 22.6 0.6 82. 12. O1512 6 22 22.8 0.6 107. 16. O1512 6 23 24.2 0.6 139. 21. O1512 6 24 25.3 0.7 130. 20. O1512 6 25 ENDDATA 13 0 O1512 6 26 ENDSUBENT 25 0 O1512 699999 SUBENT O1512007 20221212 O092O1512 7 1 BIB 5 8 O1512 7 2 REACTION (38-SR-0(A,X)40-ZR-86,,SIG) O1512 7 3 COMMENT *By authors*. These data have small values due to the O1512 7 4 very small abundance of Sr-84, 0.56% in natural O1512 7 5 strontium. O1512 7 6 DECAY-DATA (40-ZR-86,16.5HR,DG,242.8,0.96) O1512 7 7 STATUS (TABLE) Tbl.3 from Appl.Rad.Isot.,65(2007)561 O1512 7 8 HISTORY (20221212A) SD: Right part of reaction combination O1512 7 9 deleted. DATA-ERR -> ERR-T; STATUS added. O1512 7 10 ENDBIB 8 0 O1512 7 11 NOCOMMON 0 0 O1512 7 12 DATA 4 8 O1512 7 13 EN EN-ERR DATA ERR-T O1512 7 14 MEV MEV MB MB O1512 7 15 18.5 0.6 0.31 0.05 O1512 7 16 19.0 0.7 0.39 0.06 O1512 7 17 19.7 0.6 0.30 0.05 O1512 7 18 21.2 0.6 1.03 0.15 O1512 7 19 22.6 0.6 0.96 0.14 O1512 7 20 22.8 0.6 1.51 0.23 O1512 7 21 24.2 0.6 2.27 0.34 O1512 7 22 25.3 0.7 2.13 0.32 O1512 7 23 ENDDATA 10 0 O1512 7 24 ENDSUBENT 23 0 O1512 799999 ENDENTRY 7 0 O151299999999