ENTRY O1027 20030221 0000O102700000001 SUBENT O1027001 20030221 0000O102700100001 BIB 15 62 O102700100002 TITLE Radiochemical studies relevant to the production of O102700100003 Y-86 and Y-88 at small-sized cyclotron. O102700100004 AUTHOR (K.Kettern, K.-H.Linse, S.Spellerberg, H.H.Coenen, O102700100005 S.M.Qaim) O102700100006 INSTITUTE (2GERJUL) O102700100007 REFERENCE (J,RCA,90,845,2002) O102700100008 (W,QAIM,20030221) Misprint for O1027002 was corrected. O102700100009 REL-REF (N,D4030001,F.ROESCH+,J,RCA,61,1,1993) Method O102700100010 to prepare thin samples of SrCO/3 . O102700100011 (R,,F.ROESCH+,J,ARI,44,671,1993) Chemical separation O102700100012 method. O102700100013 HISTORY (20030210C) O102700100014 (20030221A) Isomeric cross section ratios are added. O102700100015 (20030221U) Last checking has been done. O102700100016 SAMPLE The thin samples of SrCO/3 were used. O102700100017 ADD-RES (TTY-C) From the measured cross sections integral O102700100018 yields of Y-88, Y-87-m and Y-87-g were calculated. O102700100019 The isomeric cross section ratio for the pair Y-87-m/g O102700100020 was determined as a function of incident proton energy O102700100021 and the results are discussed in terms of the spins of O102700100022 the two isomeric states involved. O102700100023 Medium scale production of both Y-86 and Y-88 has been O102700100024 carried out more than 15 times each using the (P,N) O102700100025 reaction. O102700100026 Chemical separation method. O102700100027 DETECTOR (HPGE) A 145-cm**3 O102700100028 ERR-ANALYS (ERR-T) The overall uncertainties in the cross section O102700100029 values were obtained by taking the square root of the O102700100030 sum of the squares of individual uncertainties. The O102700100031 individual uncertainties in % considered were as O102700100032 follows- O102700100033 -target thickness - i.e Number of nuclei in the target O102700100034 approx. 2%. O102700100035 -Inhomogenety in target thickness approx. 5%. O102700100036 -Bombarding beam intensity approx. 10%. O102700100037 -Detector efficiency and sample-detector geometry O102700100038 approx. 5%. O102700100039 -Peak area analysis approx. 5%. O102700100040 For the SR-nat(P,XN) reactions investigated the O102700100041 typical overall uncertainty was 13%. O102700100042 (EN-ERR) The uncertainty has been calculated by authorsO102700100043 FACILITY (CYCLO,2GERJUL) The Julich compact cyclotron CV-28 . O102700100044 (CYCLO,2SWTPSI) The PSI injector. O102700100045 MONITOR (29-CU-0(P,X)30-ZN-62,IND,SIG) O102700100046 (29-CU-0(P,X)30-ZN-63,IND,SIG) O102700100047 (22-TI-0(P,X)23-V-48,IND,SIG) O102700100048 The effective energy of proton beam was determined via O102700100049 a ratio of monitor reactions. O102700100050 MONIT-REF (,F.TARKANYI+,R,IAEA-1211,2001) O102700100051 METHOD (ACTIV) At Julich the irradiation time in each case wasO102700100052 60-min. At the PSI the irradiation time was 7.7 hour. O102700100053 (STTA) Several stacks, each consisting of about O102700100054 5 samples and a few monitor foils, were irradiated at O102700100055 the Julich. One stack was irradiated at the PSI. O102700100056 (EXTB) At the Julich compact cyclotron at a beam O102700100057 current of about 100-nanoampere. At the PSI at a beam O102700100058 current of 40-nanoampere. O102700100059 (EDEG) PSI Injector beam was degraded in the stack so O102700100060 that the calculated energy on the first sample amountedO102700100061 to 25.6 MeV. O102700100062 (GSPEC) O102700100063 STATUS (TABLE) In the paper. O102700100064 ENDBIB 62 0 O102700100065 NOCOMMON 0 0 O102700100066 ENDSUBENT 65 0 O102700199999 SUBENT O1027002 20030221 0000O102700200001 BIB 6 17 O102700200002 REACTION (38-SR-0(P,X)39-Y-88,IND,SIG) O102700200003 RAD-DET (39-Y-88,DG) O102700200004 DECAY-DATA (39-Y-88,106.6D,DG,898.0,0.937,DG,1836.1,0.992) O102700200005 FLAG (2.).Irradiation at the PSI injector. All another O102700200006 irradiations were done at the Julich compact cyclotron.O102700200007 (3.) Original paper contains misprint for the cross O102700200008 section O102700200009 REL-REF (A,P0033010,J.P.BLASER+,J,HPA,24,441,1951) O102700200010 (A,B0069002,D.R.SACHDEV+,J,CJC,45,1149,1967) O102700200011 (A,A0510017,V.N.LEVKOVSKI,B,LEVKOVSKIJ,,1991) O102700200012 COMMENT -By authors. Our measurements agree with the results ofO102700200013 P0033 and B0069 up to 15-MeV and provide a more O102700200014 detailed data set around the maximum of the excitation O102700200015 function. O102700200016 Our values also agree with A0510 data, except around O102700200017 the maximum and above 22-MeV where the latter are too O102700200018 high. O102700200019 ENDBIB 17 0 O102700200020 NOCOMMON 0 0 O102700200021 DATA 5 21 O102700200022 EN EN-ERR DATA ERR-T FLAG O102700200023 MEV MEV MB MB NO-DIM O102700200024 25.6 0.5 43. 7. 2. O102700200025 23. 0.5 64. 10. 2. O102700200026 20.2 0.5 142. 22. 2. O102700200027 18.8 0.3 143. 22. O102700200028 17.9 0.3 210. 33. O102700200029 17.7 0.6 392. 62. 2. O102700200030 16.4 0.3 326. 51. O102700200031 15.8 0.6 502. 79. 2. O102700200032 15.2 0.3 606. 95. O102700200033 14.4 0.3 642. 101. O102700200034 14.3 0.6 553. 87. 2. O102700200035 13.3 0.3 657. 103. O102700200036 12.4 0.3 662. 98. O102700200037 10.9 0.3 612. 96. O102700200038 10.8 0.3 524. 83. O102700200039 10.2 0.3 585. 92. O102700200040 9. 0.4 510. 80. O102700200041 8.4 0.4 412. 73. O102700200042 7.1 0.4 325. 51. O102700200043 6.6 0.5 260. 34. 3. O102700200044 4.5 0.5 29. 5. O102700200045 ENDDATA 23 0 O102700200046 ENDSUBENT 45 0 O102700299999 SUBENT O1027003 20030221 0000O102700300001 BIB 5 8 O102700300002 REACTION (38-SR-0(P,X)39-Y-87-G,IND/M+,SIG) O102700300003 RAD-DET (39-Y-87-G,DG) O102700300004 DECAY-DATA (39-Y-87-G,79.8HR,DG,388.5,0.821,DG,484.8,0.897) O102700300005 FLAG (2.).Irradiation at the PSI injector. All another O102700300006 irradiations were done at the Julich compact cyclotron.O102700300007 COMMENT -By authors. The Y-87 production cross section O102700300008 includes both Y-87m and Y-87g since the measurement wasO102700300009 done after almost complete decay of Y-87m. O102700300010 ENDBIB 8 0 O102700300011 NOCOMMON 0 0 O102700300012 DATA 5 22 O102700300013 EN EN-ERR DATA ERR-T FLAG O102700300014 MEV MEV MB MB NO-DIM O102700300015 25.6 0.5 601. 78. 2. O102700300016 23. 0.5 615. 80. 2. O102700300017 20.2 0.5 537. 70. 2. O102700300018 18.8 0.3 433. 56. O102700300019 17.9 0.3 479. 62. O102700300020 17.7 0.6 286. 37. 2. O102700300021 16.4 0.3 296. 38. O102700300022 15.8 0.6 72. 9. 2. O102700300023 15.2 0.3 152. 20. O102700300024 14.4 0.3 72. 9. O102700300025 14.3 0.6 57. 7. 2. O102700300026 12.8 0.6 42. 5. 2. O102700300027 12.4 0.3 33. 4. O102700300028 10.9 0.3 40. 5. O102700300029 10.8 0.3 34. 4. O102700300030 10.6 0.7 26. 3. 2. O102700300031 10.2 0.3 33. 4. O102700300032 9. 0.4 35. 5. O102700300033 8.4 0.4 24. 3. O102700300034 7.1 0.4 23. 3. O102700300035 6.6 0.5 17. 2. O102700300036 4.5 0.5 5. 1. O102700300037 ENDDATA 24 0 O102700300038 ENDSUBENT 37 0 O102700399999 SUBENT O1027004 20030221 0000O102700400001 BIB 4 5 O102700400002 REACTION (38-SR-0(P,X)39-Y-87-M,IND,SIG) O102700400003 RAD-DET (39-Y-87-M,DG) O102700400004 DECAY-DATA (39-Y-87-M,13.4HR,DG,380.8,0.793) O102700400005 FLAG (2.).Irradiation at the PSI injector. All another O102700400006 irradiations were done at the Julich compact cyclotron.O102700400007 ENDBIB 5 0 O102700400008 NOCOMMON 0 0 O102700400009 DATA 5 17 O102700400010 EN EN-ERR DATA ERR-T FLAG O102700400011 MEV MEV MB MB NO-DIM O102700400012 25.6 0.5 354. 46. 2. O102700400013 23. 0.5 323. 42. 2. O102700400014 20.2 0.5 298. 39. 2. O102700400015 18.8 0.3 312. 41. O102700400016 17.9 0.3 333. 43. O102700400017 17.7 0.6 139. 18. 2. O102700400018 15.2 0.3 94. 12. O102700400019 14.4 0.3 54. 7. O102700400020 12.4 0.3 36. 5. O102700400021 10.9 0.3 37. 5. O102700400022 10.8 0.3 28. 4. O102700400023 10.2 0.3 34. 4. O102700400024 9. 0.4 29. 4. O102700400025 8.4 0.4 25. 3. O102700400026 7.1 0.4 18. 2. O102700400027 6.6 0.5 14. 2. O102700400028 4.5 0.5 3. 0.5 O102700400029 ENDDATA 19 0 O102700400030 ENDSUBENT 29 0 O102700499999 SUBENT O1027005 20030221 0000O102700500001 BIB 4 8 O102700500002 REACTION (38-SR-0(P,X)39-Y-87-M/G,,SIG/RAT) Figure 4 O102700500003 DECAY-DATA (39-Y-87-G,79.8HR,DG,388.5,0.821,DG,484.8,0.897) O102700500004 (39-Y-87-M,13.4HR,DG,380.8,0.793) O102700500005 STATUS (CURVE) By CAJAD. O102700500006 (DEP,O1027003) O102700500007 (DEP,O1027004) O102700500008 FLAG (1.) Table 2 does not contain isomeric cross section atO102700500009 the energy. O102700500010 ENDBIB 8 0 O102700500011 NOCOMMON 0 0 O102700500012 DATA 5 17 O102700500013 EN EN-ERR DATA ERR-T FLAG O102700500014 MEV MEV NO-DIM NO-DIM NO-DIM O102700500015 4.5 0.5 0.69 9.E-02 O102700500016 6.6 0.5 0.87 0.11 O102700500017 7.1 0.4 0.78 0.1 O102700500018 8.4 0.4 1.01 0.13 O102700500019 9. 0.4 0.83 0.11 O102700500020 10.2 0.3 1.03 0.13 O102700500021 10.6 0.7 0.84 9.E-02 1. O102700500022 10.8 0.3 0.93 0.12 O102700500023 12.4 0.3 1.08 0.14 O102700500024 14.4 0.3 0.74 9.E-02 O102700500025 15.2 0.3 0.62 8.E-02 O102700500026 17.7 0.6 0.49 6.E-02 O102700500027 17.9 0.3 0.7 9.E-02 O102700500028 18.8 0.3 0.72 9.E-02 O102700500029 20.2 0.5 0.56 7.E-02 O102700500030 23. 0.5 0.53 6.E-02 O102700500031 25.6 0.5 0.59 7.E-02 O102700500032 ENDDATA 19 0 O102700500033 ENDSUBENT 32 0 O102700599999 ENDENTRY 5 0 O102799999999