ENTRY O1054 20221225 O105400000001 SUBENT O1054001 20221225 20230412 O105400100001 BIB 12 93 O105400100002 TITLE The Sr-88(p,gamma)Y-89 reaction at astrophysically O105400100003 relevant energies O105400100004 AUTHOR (S.Galanopoulos, P.Demetriou, M.Kokkoris, O105400100005 S.Harissopulos, R.Kunz, M.Fey, J.W.Hammer, Gy.Gyurky, O105400100006 Zs.Fulop, E.Somorjai, S.Goriely) O105400100007 INSTITUTE (2GRCATH,2GERTHS,3HUNDEB,2BLGBRU) O105400100008 REFERENCE (J,PR/C,67,015801,2003) O105400100009 (J,PR/C,104,025804,2021) - new analysis; screened O105400100010 corrected data O105400100011 (J,NP/A,688,421,2001) prelim. data of 88Sr(p,gama)89Y O105400100012 FACILITY (DYNAM,2GERTHS) 4-MV single-ended dynamitron O105400100013 (VDGT,2GRCATH) 5.5-MV T11 Van de Graaff O105400100014 SAMPLE The target material was 99.84% enriched in Sr-88, O105400100015 this was produced by evaporating Sr-88(NO3)2 powder on O105400100016 a 0.4-mm thick tantalum backing. The amount of Sr-88 inO105400100017 the target was determined by means of an XRF analysis O105400100018 before all measurements. It was also checked at the endO105400100019 of the Stuttgart measurements as well as at the end of O105400100020 the Athens runs. The thickness of Sr-88 in the target O105400100021 before any measurement was 168+-7-mug/cm**2 and the O105400100022 material loss was found to be less than 3%. This O105400100023 thickness corresponds approximately 12 and 8-KeV at O105400100024 beam energies of 2 and 4-MeV, respectively. These O105400100025 values were derived using the SRIM code and assuming O105400100026 that the target consists of Sr-88 only. However, O105400100027 the thickness of the target is defined by its O105400100028 stoichiometry that was determined at the end of the O105400100029 measurements by performing a nuclear reaction analysis.O105400100030 The measurements were necessary to determine correctly O105400100031 the proton stopping powers. The measurements were O105400100032 performed using a single-charged H2 beam of 1.1-MeV O105400100033 energy that was delivered by the tandem accelerator O105400100034 of Athens. O105400100035 The final amount of Sr-88 in the target, according to O105400100036 the XRF analyses, did not differ practically from that O105400100037 in the beginning of the measurements allows to O105400100038 calculate the maximum total target thickness by varyingO105400100039 the ratio of the amount of the Sr-88(NO3)2 to the O105400100040 Sr-88(OH)2 phase. The maximum thickness obtained this O105400100041 way is 405 mug/cm**2, that corresponds to 44 and 28-KeVO105400100042 at 2 and 4-MeV, respectively. This thickness is derivedO105400100043 if the target is comprised of the Sr-88(NO3)2 phase O105400100044 only. Even in such an extreme case the uncertainty O105400100045 entering the determination of the corresponding O105400100046 effective energies is less than 0.5%. O105400100047 DETECTOR (HPGE) For cross section measurements at E(P) < 3.5 O105400100048 MeV (Stuttgart) four large volume HPGE detectors, all O105400100049 shielded with BGO crystal for Compton background O105400100050 suppression. O105400100051 In the cross section measurements carried out in O105400100052 Athens one HPGE detector without any BGO shields was O105400100053 used. O105400100054 METHOD (BCINT) The current of the proton beam was about 10-muAO105400100055 at measurements carried out in Stuttgart and approx. O105400100056 1.3-muA at measurements carried out in Athens. O105400100057 COMMENT *By authors. In experimental setup used in Stuttgart O105400100058 the target was placed at 90-degree to the beam axis. O105400100059 Its backing was cooled directly with water during the O105400100060 whole experiments. The detector were placed on a O105400100061 rotating table at distances between 10 and 20-cm front O105400100062 the target. O105400100063 In experimental setup used in Athens the target was O105400100064 placed at 20-degree with respect to the beam axis. O105400100065 The distance between the target-center and the O105400100066 detector-front was 12-cm. The detector was placed O105400100067 on a goniometrical table that could rotate around the O105400100068 target with an accuracy better than 1-degree. In order O105400100069 to measure gamma angular distributions at each beam O105400100070 energy, gamma-singles spectra were taken at six angles O105400100071 with the respect to the beam. The target backing was O105400100072 cooled with air during all measurements. O105400100073 As in case of the measurements in Stuttgart, backgroundO105400100074 spectra were also measured, in order to investigate O105400100075 possible yield contributions from the backing material.O105400100076 In both the Stuttgart and Athens experiments, the O105400100077 absolute efficiency data were checked for uncertaintiesO105400100078 due to coincident summing. O105400100079 STATUS (TABLE) Tbl. I from Phys.Rev.,C67(2003)015801 O105400100080 ERR-ANALYS (ERR-T) The total errors includes: O105400100081 (ERR-1) uncertainty in the solid angle corrections O105400100082 (ERR-2) uncertainty due to charge O105400100083 (ERR-3) uncertainty due to target thickness O105400100084 (ERR-4) uncertainty due to efficiency measurements O105400100085 (ERR-S,1.,5.) 1% at beam energies E(p) more or O105400100086 equal 2.5-MeV and approx. 2% for E(p) ranging from O105400100087 approx. 2 to 2.5-MeV. At energies below 2-MeV, the O105400100088 statistical errors can vary from 2% to 5%. O105400100089 HISTORY (20030331C) O105400100090 (20030409U) Last checking has been done. O105400100091 (20191208A) SD: ERR-ANALYS updated. Ref. NP/A,688,421 O105400100092 added. O105400100093 (20221225A) SD: Correction in Subent 002. Subent 003 O105400100094 added. O105400100095 ENDBIB 93 0 O105400100096 COMMON 4 3 O105400100097 ERR-1 ERR-2 ERR-3 ERR-4 O105400100098 PER-CENT PER-CENT PER-CENT PER-CENT O105400100099 4. 5. 4. 3. O105400100100 ENDCOMMON 3 0 O105400100101 ENDSUBENT 100 0 O105400199999 SUBENT O1054002 20221225 20230412 O105400200001 BIB 3 4 O105400200002 REACTION 1(38-SR-88(P,G)39-Y-89,,SIG) O105400200003 2(38-SR-88(P,G)39-Y-89,,SIG,,SFC) O105400200004 STATUS (SPSDD,O1054003) Screening corrected data O105400200005 HISTORY (20221225A) SD: Data were superseded. O105400200006 ENDBIB 4 0 O105400200007 NOCOMMON 0 0 O105400200008 DATA 5 33 O105400200009 EN-CM DATA 1ERR-T 1DATA 2ERR-T 2 O105400200010 MEV MICRO-B MICRO-B B*MEV B*MEV O105400200011 1.379 0.66 0.13 528.E+5 104.E+5 O105400200012 1.479 0.91 0.14 262.E+5 40.E+5 O105400200013 1.58 2.2 0.3 251.E+5 34.E+5 O105400200014 1.68 3.2 0.4 159.E+5 20.E+5 O105400200015 1.78 8.3 0.9 192.E+5 21.E+5 O105400200016 1.88 15.6 1.7 180.E+5 21.E+5 O105400200017 1.982 16.7 1.8 100.E+5 11.E+5 O105400200018 2.08 48. 5. 161.E+5 17.E+5 O105400200019 2.18 60. 6. 116.E+5 12.E+5 O105400200020 2.28 136. 13. 157.E+5 15.E+5 O105400200021 2.38 158. 15. 113.E+5 11.E+5 O105400200022 2.48 168. 16. 76.E+5 7.E+5 O105400200023 2.561 206. 19. 66.E+5 6.E+5 O105400200024 2.581 198. 18. 59.E+5 5.E+5 O105400200025 2.68 365. 33. 73.E+5 7.E+5 O105400200026 2.78 413. 38. 57.E+5 5.E+5 O105400200027 2.88 527. 51. 51.E+5 5.E+5 O105400200028 2.957 613. 56. 45.E+5 4.E+5 O105400200029 2.98 667. 61. 46.E+5 4.E+5 O105400200030 3.081 1020. 91. 51.E+5 5.E+5 O105400200031 3.18 1030. 93. 38.E+5 3.E+5 O105400200032 3.281 1280. 117. 35.E+5 3.E+5 O105400200033 3.354 1320. 124. 30.E+5 3.E+5 O105400200034 3.38 1440. 132. 31.E+5 3.E+5 O105400200035 3.478 2080. 187. 34.E+5 3.E+5 O105400200036 3.552 1770. 168. 24.E+5 2.E+5 O105400200037 3.75 2180. 198. 18.E+5 2.E+5 O105400200038 3.948 2930. 231. 16.E+5 1.E+5 O105400200039 4.146 3630. 298. 13.E+5 1.E+5 O105400200040 4.344 4660. 382. 12.E+5 1.E+5 O105400200041 4.541 4210. 333. 7.3E+5 0.6E+5 O105400200042 4.739 4310. 336. 5.4E+5 0.5E+5 O105400200043 4.937 2690. 222. 2.5E+5 0.2E+5 O105400200044 ENDDATA 35 0 O105400200045 ENDSUBENT 44 0 O105400299999 SUBENT O1054003 20221225 20230412 O105400300001 BIB 3 4 O105400300002 REACTION 1(38-SR-88(P,G)39-Y-89,,SIG) O105400300003 2(38-SR-88(P,G)39-Y-89,,SIG,,SFC) O105400300004 STATUS (TABLE) Tbl.II from Phys.Rev.,C104(2021)025804 O105400300005 HISTORY (20221225C) SD O105400300006 ENDBIB 4 0 O105400300007 NOCOMMON 0 0 O105400300008 DATA 5 33 O105400300009 EN-CM DATA 1ERR-T 1DATA 2ERR-T 2 O105400300010 MEV MICRO-B MICRO-B B*MEV B*MEV O105400300011 1.379 0.55 0.10 5.7658E+07 1.0483E+07 O105400300012 1.479 0.8 0.1 2.9958E+07 3.745E+06 O105400300013 1.580 2.0 0.3 2.9354E+07 4.403E+06 O105400300014 1.680 2.9 0.4 1.8358E+07 2.532E+06 O105400300015 1.780 7.6 0.8 2.2334E+07 2.351E+06 O105400300016 1.880 14.4 1.6 2.0935E+07 2.326E+06 O105400300017 1.982 15.5 1.7 1.1637E+07 1.276E+06 O105400300018 2.080 45. 5. 1.8777E+07 2.086E+06 O105400300019 2.180 56. 6. 1.3389E+07 1.434E+06 O105400300020 2.280 128. 12. 1.8214E+07 1.708E+06 O105400300021 2.380 149. 14. 1.3056E+07 1.227E+06 O105400300022 2.480 159. 15. 8.845E+06 8.34E+05 O105400300023 2.561 196. 18. 7.7E+06 7.07E+05 O105400300024 2.581 188. 17. 6.796E+06 6.14E+05 O105400300025 2.680 348. 31. 8.449E+06 7.53E+05 O105400300026 2.780 394. 36. 6.545E+06 5.98E+05 O105400300027 2.880 504. 49. 5.848E+06 5.69E+05 O105400300028 2.957 588. 54. 5.242E+06 4.81E+05 O105400300029 2.980 640. 68. 5.285E+06 5.62E+05 O105400300030 3.081 980. 87. 5.841E+06 5.19E+05 O105400300031 3.180 992. 90. 4.363E+06 3.96E+05 O105400300032 3.281 1235. 113. 4.043E+06 3.7E+05 O105400300033 3.354 1275. 120. 3.402E+06 3.2E+05 O105400300034 3.380 1391. 128. 3.456E+06 3.18E+05 O105400300035 3.478 2013. 181. 3.852E+06 3.46E+05 O105400300036 3.552 1714. 163. 2.713E+06 2.58E+05 O105400300037 3.750 2117. 192. 2.076E+06 1.88E+05 O105400300038 3.948 2851. 225. 1.799E+06 1.42E+05 O105400300039 4.146 3539. 291. 1.486E+06 1.22E+05 O105400300040 4.344 4551. 373. 1.309E+06 1.07E+05 O105400300041 4.541 4118. 326. 8.34E+05 6.6E+04 O105400300042 4.739 4222. 329. 6.15E+05 4.8E+04 O105400300043 4.937 2638. 218. 2.82E+05 2.3E+04 O105400300044 ENDDATA 35 0 O105400300045 ENDSUBENT 44 0 O105400399999 ENDENTRY 3 0 O105499999999