ENTRY D4289 20140117 D093D428900000001 SUBENT D4289001 20140117 D093D428900100001 BIB 11 41 D428900100002 TITLE Activation measurement of the 3He(a,g)7Be reaction D428900100003 cross section at high energies D428900100004 AUTHOR (C.Bordeanu,Gy.Gyurky,Z.Halasz,T.Szucs,G.G.Kiss, D428900100005 Z.Elekes,J.Farkas,Zs.Fulop,E.Somorjai) D428900100006 INSTITUTE (3HUNDEB) D428900100007 REFERENCE (J,NP/A,908,1,2013) main reference D428900100008 #doi:10.1016/j.nuclphysa.2013.03.012 D428900100009 (S,AIP-1491,281,2012) conference presentation D428900100010 #doi:10.1063/1.4764257 D428900100011 FACILITY (CYCLO,3HUNDEB) D428900100012 SAMPLE 99.95% enriched 3-He. The gas pressure was typically D428900100013 300 mbar. D428900100014 DETECTOR (HPGE) D428900100015 METHOD (ACTIV,EDEG,GSPEC,SITA) Five irradiations were D428900100016 carried out between ?-energies of 4.0 and 6.3 MeV. The D428900100017 beam intensity was between 100 and 250 nA. The length D428900100018 of irradiations varied between 14 and 25 hours. D428900100019 Irradiations were done in Faraday-cup type target D428900100020 chamber. The current integrator counts were recorded D428900100021 in multichannel scaling mode with 1 min time base. D428900100022 Suppressor voltage of -300V was applied. D428900100023 The temperature and pressure of the target gas was D428900100024 monitored. The target window was 1 micron pinhole-free D428900100025 Ni foil. Be7 products were collected on a copper D428900100026 catcher disk which was measured after irradiation on D428900100027 a HPGe detector using 1 cm distance. D428900100028 ERR-ANALYS (EN-ERR)The energy of the alpha beam is defined to a D428900100029 precision of 0.3%. Correction for straggling effect, D428900100030 target gas density reduction and energy loss was D428900100031 applied. Uncertainty of effective energy: 0.4-1.1% D428900100032 (ERR-T) The uncertainty of the cross-sections were D428900100033 estimated taking the independent relative errors of D428900100034 contributing components. D428900100035 (ERR-1)surface density of target nuclei(3%), D428900100036 (ERR-2)incident charged particle flux (3%), D428900100037 (ERR-3)detector efficiency (4%) D428900100038 (ERR-4)beam heating (1%) D428900100039 (ERR-S,2.7,3.9)statistical and peak fitting (2.7-3.9%) D428900100040 ADD-RES (COMP) The measured experimental data were compared to D428900100041 those found in the literature. D428900100042 HISTORY (20140117C) ts D428900100043 ENDBIB 41 0 D428900100044 COMMON 4 3 D428900100045 ERR-1 ERR-2 ERR-3 ERR-4 D428900100046 PER-CENT PER-CENT PER-CENT PER-CENT D428900100047 3. 3. 4. 1. D428900100048 ENDCOMMON 3 0 D428900100049 ENDSUBENT 48 0 D428900199999 SUBENT D4289002 20140117 D093D428900200001 BIB 3 4 D428900200002 REACTION 1(2-HE-3(A,G)4-BE-7,,SIG) D428900200003 2(2-HE-3(A,G)4-BE-7,,SIG,,SFC) D428900200004 DECAY-DATA (4-BE-7,53.22D,DG,478.,0.1044) D428900200005 STATUS (TABLE)Data were taken from Table3 of the article. D428900200006 ENDBIB 4 0 D428900200007 NOCOMMON 0 0 D428900200008 DATA 6 5 D428900200009 EN-CM EN-ERR DATA 1ERR-T 1DATA 2ERR-T 2D428900200010 KEV KEV MICRO-B MICRO-B B*EV B*EV D428900200011 1473.0 15.0 2.96 0.17 313.0 19.0 D428900200012 1791.0 14.0 3.78 0.22 327.0 19.0 D428900200013 2115.0 14.0 4.68 0.28 351.0 21.0 D428900200014 2338.0 14.0 5.08 0.30 354.0 21.0 D428900200015 2527.0 14.0 6.06 0.36 401.0 24.0 D428900200016 ENDDATA 7 0 D428900200017 ENDSUBENT 16 0 D428900299999 ENDENTRY 2 0 D428999999999