ENTRY O0849 20120120 Y008O084900000001 SUBENT O0849001 20120120 Y008O084900100001 BIB 12 53 O084900100002 TITLE Proton induced reaction cross section measurements on O084900100003 Se isotopes for the astrophysical P-process O084900100004 AUTHOR (Gy.Gyurky, Zs.Fulop, E.Somorjai, M.Kokkoris, O084900100005 S.Galanopoulos, P.Demetriou, S.Harissopulos, O084900100006 T.Rauscher, S.Goriely) O084900100007 INSTITUTE (3HUNDEB) Institute of nuclear research (ATOMKI) O084900100008 (2GRCATH) Institute of nuclear physics. O084900100009 (2SWTBAS) Departement fuer physik und astronomie O084900100010 (2BLGBRU) Institut d'astronomie et d'astrophysique O084900100011 REFERENCE (J,PR/C,68,055803,2003) O084900100012 (J,NP/A,718,599,2003) Preliminary report. O084900100013 REL-REF (R,,T.SAUTER+,J,PR/C,55,3127,1997) The method to take O084900100014 in account time variations of beam current. O084900100015 (R,,A.R.FARHAN+,J,NDS,60,735,1990) Decay-data of Br-75 O084900100016 (R,,A.R.FARHAN+,J,NDS,81,417,1997) Decay data of Br-77 O084900100017 (R,,M.M.KING+,J,NDS,76,285,1995) Decay data of Br-82. O084900100018 SAMPLE The targets were made by evaporating metallic Se with O084900100019 natural isotopic abundance onto a thick Al backing. O084900100020 The target thickness was measured with the proton O084900100021 induced X-ray emission. According to PIXE results, theO084900100022 target thickness was ranging from 200 to 700 mug/cm2, O084900100023 corresponding to a proton energy loss of 10 KeV (at 3.6O084900100024 MeV) to 60 KeV (at 1.3 MeV), respectively. The thickerO084900100025 targets (500-700 mug/cm2) were used at the lower part O084900100026 of the bombarding energy range, where the low cross O084900100027 section results very low induced gamma-activity. O084900100028 DETECTOR (HPGE) To detect the gamma-radiation following the O084900100029 beta-decay of the produced Br isotopes. O084900100030 (SIBAR) To detect the backscattered protons and to O084900100031 monitor the target stability this way. O084900100032 FACILITY (VDG,3HUNDEB) O084900100033 METHOD (BCINT) A Faraday cup to collect the accumulated chargeO084900100034 with secondary electron suppression. O084900100035 (GSPEC) Between the irradiation and gamma-counting, a O084900100036 waiting time of 30 min was inserted in order to let theO084900100037 disturbing short-lived activities decay. The gamma O084900100038 spectra were taken for at least 12 hours and stored O084900100039 regularly in order to follow the decay of the differentO084900100040 reaction products. O084900100041 (ACTIV) Each irradiation lasted about 10 hours with a O084900100042 beam current of typically 5-10 mua. O084900100043 (SITA) See sample O084900100044 COMMENT - By authors. Final cross section results were derivedO084900100045 only from those measurements where no noticeable targetO084900100046 deterioration was found, i.e., the growth of the Se O084900100047 peak area in the Rutherford backscattered spectrum was O084900100048 uniform with collected charge within the statistical O084900100049 uncertainty (below 1%). O084900100050 HISTORY (20040227C) O084900100051 (20051003A) Additional REFERENCE is added. O084900100052 (20051003U) Last checking has been done. O084900100053 (20120120A) NDS(VZ): REL-REF: ND/B->NDS O084900100054 STATUS (TABLE) In the paper. O084900100055 ENDBIB 53 0 O084900100056 NOCOMMON 0 0 O084900100057 ENDSUBENT 56 0 O084900199999 SUBENT O0849002 20040228 0000O084900200001 BIB 3 19 O084900200002 REACTION S(34-SE-74(P,G)35-BR-75,,SIG) O084900200003 A(34-SE-74(P,G)35-BR-75,,SIG,,SFC) O084900200004 ERR-ANALYS (EN-ERR) The quoted errors of the center-of-mass O084900200005 energies correspond to the energy loss in the targets.O084900200006 (ERR-T) The error in the cross section (S factor) O084900200007 values is the quadratic sum of the following partial O084900200008 errors: O084900200009 1. Efficiency of the detector - 7%, O084900200010 2. Number of target atoms - 6%, O084900200011 3. Current measurement - 3%, O084900200012 4. Uncertainty of the level parameters found in O084900200013 literature - 6%, O084900200014 5. Counting statistics (0.1 to 15%). O084900200015 DECAY-DATA (35-BR-75,1.612HR,DG,286.6,0.088) O084900200016 Dg,141.3,0.066) O084900200017 uncertainty of gamma-ray branching for 286.6-KeV O084900200018 quantum = 0.05 quant/decay. O084900200019 Uncertainty of gamma-ray branching for 141.3-KeV O084900200020 quantum = 0.005 quant/decay. O084900200021 ENDBIB 19 0 O084900200022 COMMON 1 3 O084900200023 ERR-HL O084900200024 HR O084900200025 0.002 O084900200026 ENDCOMMON 3 0 O084900200027 DATA 6 14 O084900200028 EN-CM EN-ERR DATA SERR-T SDATA AERR-T AO084900200029 KEV KEV MICRO-B MICRO-B B*MEV B*MEV O084900200030 1455. 27. 3.6 0.7 5600000. 1100000.O084900200031 1569. 12. 10.8 1.9 6600000. 1200000.O084900200032 1658. 22. 20.8 3.2 6400000. 1000000.O084900200033 1766. 12. 41.7 6.7 6100000. 1000000.O084900200034 1858. 20. 60.7 9. 5000000. 800000.O084900200035 1954. 22. 94. 14. 4400000. 700000.O084900200036 2057. 18. 119. 18. 3200000. 500000.O084900200037 2159. 14. 191. 28. 3100000. 500000.O084900200038 2310. 11. 366. 55. 3000000. 500000.O084900200039 2456. 13. 467. 69. 2100000. 300000.O084900200040 2752. 13. 1039. 154. 1600000. 200000.O084900200041 3049. 12. 1561. 231. 980000. 150000.O084900200042 3348. 8. 1888. 282. 540000. 80000.O084900200043 3547. 6. 2966. 483. 530000. 90000.O084900200044 ENDDATA 16 0 O084900200045 ENDSUBENT 44 0 O084900299999 SUBENT O0849003 20040228 0000O084900300001 BIB 4 33 O084900300002 REACTION S(34-SE-76(P,G)35-BR-77,,SIG) O084900300003 A(34-SE-76(P,G)35-BR-77,,SIG,,SFC) O084900300004 ERR-ANALYS (EN-ERR) The quoted errors of the center-of-mass O084900300005 energies correspond to the energy loss in the targets.O084900300006 (ERR-T) The error in the cross section (S factor) O084900300007 values is the quadratic sum of the following partial O084900300008 errors: O084900300009 1. Efficiency of the detector - 7%, O084900300010 2. Number of target atoms - 6%, O084900300011 3. Current measurement - 3%, O084900300012 4. Uncertainty of the level parameters found in O084900300013 literature - 6%, O084900300014 5. Counting statistics (0.1 to 15%). O084900300015 DECAY-DATA (35-BR-77-G,57.036HR,DG,239.0,0.231, O084900300016 DG,520.6,0.224, O084900300017 DG,297.2,0.0416) O084900300018 Uncertainty of gamma-ray branching for 239.0-KeV O084900300019 quantum = 0.005 quant/decay. O084900300020 Uncertainty of gamma-ray branching for 520.6-KeV O084900300021 quantum = 0.006 quant/decay. O084900300022 Uncertainty of gamma-ray branching for 297.2-KeV O084900300023 quantum = 0.0021 quant/decay. O084900300024 COMMENT - By authors. At Ep=2.176-MeV proton bombarding energyO084900300025 the 77Se(p,n)77Br reaction channel opens, having the O084900300026 same final nucleus as 76Se(p,g)77Br. Thus, above this O084900300027 energy these two reactions cannot be distinguished withO084900300028 the activation technique using targets with natural O084900300029 isotopic abundance. The measured cross section and O084900300030 S-factor values above the threshold are actually the O084900300031 weighted sum of the two cross sections: sexp= O084900300032 S1+0.82S2, where S1 and S2 are the cross sections of O084900300033 76Se(p,g)77Br and 77Se(p,n)77Br, respectively, and O084900300034 0.82 stands for the isotopic ratio of 77Se and 76Se. O084900300035 ENDBIB 33 0 O084900300036 COMMON 1 3 O084900300037 ERR-HL O084900300038 HR O084900300039 0.006 O084900300040 ENDCOMMON 3 0 O084900300041 DATA 6 14 O084900300042 EN-CM EN-ERR DATA SERR-T SDATA AERR-T AO084900300043 KEV KEV MICRO-B MICRO-B B*MEV B*MEV O084900300044 1456. 27. 9.5 0.8 14800000. 1300000.O084900300045 1569. 12. 10.4 0.9 6300000. 600000.O084900300046 1658. 22. 21.8 2.2 6800000. 700000.O084900300047 1767. 12. 59.6 6.2 8800000. 900000.O084900300048 1859. 20. 53.8 5.3 4400000. 400000.O084900300049 1954. 22. 93.1 9.2 4400000. 400000.O084900300050 2058. 18. 147. 14. 4000000. 400000.O084900300051 2160. 14. 207. 20. 3400000. 300000.O084900300052 2311. 11. 796. 78. 6500000. 700000.O084900300053 2457. 13. 1182. 116. 5300000. 500000.O084900300054 2753. 13. 3200. 312. 4900000. 500000.O084900300055 3050. 12. 6467. 631. 4000000. 400000.O084900300056 3349. 8. 11529. 1143. 3300000. 300000.O084900300057 3548. 6. 17252. 2044. 3100000. 400000.O084900300058 ENDDATA 16 0 O084900300059 ENDSUBENT 58 0 O084900399999 SUBENT O0849004 20040228 0000O084900400001 BIB 3 22 O084900400002 REACTION S(34-SE-82(P,N)35-BR-82,,SIG) O084900400003 A(34-SE-82(P,N)35-BR-82,,SIG,,SFC) O084900400004 ERR-ANALYS (EN-ERR) The quoted errors of the center-of-mass O084900400005 energies correspond to the energy loss in the targets.O084900400006 (ERR-T) The error in the cross section (S factor) O084900400007 values is the quadratic sum of the following partial O084900400008 errors: O084900400009 1. Efficiency of the detector - 7%, O084900400010 2. Number of target atoms - 6%, O084900400011 3. Current measurement - 3%, O084900400012 4. Uncertainty of the level parameters found in O084900400013 literature - 6%, O084900400014 5. Counting statistics (0.1 to 15%). O084900400015 DECAY-DATA (35-BR-82-G,35.3HR,DG,776.5,0.835, O084900400016 DG,554.3,0.708, O084900400017 DG,619.1,0.434) O084900400018 Uncertainty of gamma-ray branching for 776.5-KeV O084900400019 quantum = 0.008 quant/decay. O084900400020 Uncertainty of gamma-ray branching for 554.3-KeV O084900400021 quantum = 0.007 quant/decay. O084900400022 Uncertainty of gamma-ray branching for 619.1-KeV O084900400023 quantum = 0.004 quant/decay. O084900400024 ENDBIB 22 0 O084900400025 COMMON 1 3 O084900400026 ERR-HL O084900400027 HR O084900400028 0.02 O084900400029 ENDCOMMON 3 0 O084900400030 DATA 6 15 O084900400031 EN-CM EN-ERR DATA SERR-T SDATA AERR-T AO084900400032 KEV KEV MICRO-B MICRO-B B*MEV B*MEV O084900400033 1258. 31. 0.75 0.14 8200000. 1500000.O084900400034 1457. 27. 3.6 0.3 5600000. 500000.O084900400035 1571. 12. 11.8 1.2 7200000. 700000.O084900400036 1660. 22. 17.6 1.7 5500000. 500000.O084900400037 1768. 12. 44.1 4.3 6500000. 600000.O084900400038 1860. 20. 79.8 7.6 6600000. 600000.O084900400039 1956. 22. 137. 13. 6500000. 600000.O084900400040 2060. 18. 219. 21. 5900000. 600000.O084900400041 2162. 14. 367. 35. 6000000. 600000.O084900400042 2313. 11. 742. 71. 6100000. 600000.O084900400043 2459. 13. 1142. 109. 5100000. 500000.O084900400044 2755. 13. 3330. 317. 5100000. 500000.O084900400045 3052. 12. 6778. 647. 4200000. 400000.O084900400046 3352. 8. 12448. 1208. 3600000. 400000.O084900400047 3552. 6. 19329. 2257. 3500000. 400000.O084900400048 ENDDATA 17 0 O084900400049 ENDSUBENT 48 0 O084900499999 SUBENT O0849005 20040228 0000O084900500001 BIB 5 7 O084900500002 REACTION (34-SE-74(P,G)35-BR-75,,SGV) O084900500003 ERR-ANALYS (DATA-ERR) No any analysis is presented. O084900500004 REL-REF (R,,T.RAUSCHER+,J,AND,79,47,2001) See also O084900500005 http://nucastro.Org/reaclib.Html. Predicted reaction O084900500006 rates. O084900500007 MISC-COL (MISC) The prediction from REL-REF O084900500008 STATUS (DEP,O0849002) O084900500009 ENDBIB 7 0 O084900500010 NOCOMMON 0 0 O084900500011 DATA 4 8 O084900500012 KT-K DATA DATA-ERR MISC O084900500013 K9 CM3/S/MOL CM3/S/MOL CM3/S/MOL O084900500014 2. 27.2 5.301 37.5 O084900500015 2.5 217.7 39.78 255. O084900500016 3. 945.4 166.3 1020. O084900500017 3.5 2813. 484.3 2920. O084900500018 4. 6490. 1104. 6750. O084900500019 4.5 12510. 2115. 13300. O084900500020 5. 21170. 3566. 23600. O084900500021 6. 46160. 7764. 57900. O084900500022 ENDDATA 10 0 O084900500023 ENDSUBENT 22 0 O084900599999 SUBENT O0849006 20040228 0000O084900600001 BIB 5 9 O084900600002 REACTION ((34-SE-76(P,G)35-BR-77,,SGV)+ O084900600003 (34-SE-77(P,N)35-BR-77,,SGV)) O084900600004 See authors' comment in O0849003 O084900600005 ERR-ANALYS (DATA-ERR) No any analysis is presented. O084900600006 REL-REF (R,,T.RAUSCHER+,J,AND,79,47,2001) See also O084900600007 http://nucastro.Org/reaclib.Html. Predicted reaction O084900600008 rates. O084900600009 MISC-COL (MISC) The prediction from REL-REF O084900600010 STATUS (DEP,O0849003) O084900600011 ENDBIB 9 0 O084900600012 NOCOMMON 0 0 O084900600013 DATA 4 5 O084900600014 KT-K DATA DATA-ERR MISC O084900600015 K9 CM3/S/MOL CM3/S/MOL CM3/S/MOL O084900600016 2.5 454. 56.71 605. O084900600017 3. 2189. 259. 3170. O084900600018 3.5 7237. 834.3 11400. O084900600019 4. 18210. 2078. 31800. O084900600020 4.5 37580. 4275. 74200. O084900600021 ENDDATA 7 0 O084900600022 ENDSUBENT 21 0 O084900699999 SUBENT O0849007 20040228 0000O084900700001 BIB 5 7 O084900700002 REACTION (34-SE-82(P,N)35-BR-82,,SGV) O084900700003 ERR-ANALYS (DATA-ERR) No any analysis is presented. O084900700004 REL-REF (R,,T.RAUSCHER+,J,AND,79,47,2001) See also O084900700005 http://nucastro.Org/reaclib.Html. Predicted reaction O084900700006 rates. O084900700007 MISC-COL (MISC) The prediction from REL-REF O084900700008 STATUS (DEP,O0849004) O084900700009 ENDBIB 7 0 O084900700010 NOCOMMON 0 0 O084900700011 DATA 4 6 O084900700012 KT-K DATA DATA-ERR MISC O084900700013 K9 CM3/S/MOL CM3/S/MOL CM3/S/MOL O084900700014 1.5 1.61 0.1541 2.07 O084900700015 2. 45.61 4.639 49.1 O084900700016 2.5 437.7 45.15 445. O084900700017 3. 2231. 233.3 2320. O084900700018 3.5 7519. 798.2 8520. O084900700019 4. 19070. 2054. 24500. O084900700020 ENDDATA 8 0 O084900700021 ENDSUBENT 20 0 O084900799999 ENDENTRY 7 0 O084999999999