ENTRY O0796 20221116 O091O0796 0 1 SUBENT O0796001 20221116 O091O0796 1 1 BIB 15 51 O0796 1 2 TITLE A new measurement of the 7-Li(d,p)8-Li cross section O0796 1 3 and consequences for 7-Be(p,gamma)8-B. O0796 1 4 REFERENCE (J,NP/A,630,678,1998) O0796 1 5 AUTHOR (L.Weissman, C.Broude, G.Goldring, R.Hadar, M.Hass, O0796 1 6 E.Schwamm, M.Shaanan) O0796 1 7 INSTITUTE (3ISLWZI) Department of particle physics. O0796 1 8 (2GERHEI) Ruprecht-Karls university. O0796 1 9 (3ISLHFA) Institute of solid-state physics. O0796 1 10 MONITOR ((MONIT)3-LI-7(P,N)4-BE-7,,SIG) O0796 1 11 MONIT-REF (F0007002,K.K.Sekharan+,J,NIM,133,253,1976) O0796 1 12 (T0010010,J.H.Gibbons+,J,PR,114,571,1959) O0796 1 13 Reference data for Li-7(p,n)Be-7 reaction at proton O0796 1 14 energy at 1.985 MeV. The data were used to determine O0796 1 15 number of Li-7 nuclei in used targets. O0796 1 16 DECAY-DATA (4-BE-7,53.29D,DG,478.,0.1052) O0796 1 17 SAMPLE Circular targets of Li-F of 2 mm diameter, evaporated O0796 1 18 on Al and Pt foils. A liquid nitrogen cold cryofinger O0796 1 19 is placed close to the target area to protect the O0796 1 20 target surface from contamination. The vacuum in the O0796 1 21 chamber was 8.E-7 Torr. O0796 1 22 METHOD (EXTB) A deutron beam (D2+) was raster scanned over a O0796 1 23 rectangle of 7 mm X 6 mm. The purpose of the scan is O0796 1 24 to obtain a beam of uniform areal density. O0796 1 25 (BCINT) O0796 1 26 (ACTIV) The time sequence of the complete cycle is: O0796 1 27 1. 1.5 s beam-on-target; O0796 1 28 2. 100 ms rotation; O0796 1 29 3. 1.5 s of target in the counting position; O0796 1 30 4. 100 ms rotation. O0796 1 31 PART-DET (A) Delayed alphas following the beta-decay of Li-8. O0796 1 32 DETECTOR (SIBAR) A 40 micron surface barrier detector. O0796 1 33 The detector was surrounded by a shroud to prevent O0796 1 34 scattered beam panicles from reaching the detector. O0796 1 35 FACILITY (VDG,3ISLWZI) 3 MV accelrator. O0796 1 36 ERR-ANALYS (ERR-T) Total uncertainty of final result is determinedO0796 1 37 by uncertainties: O0796 1 38 (ERR-1) Of monitor cross section, O0796 1 39 (ERR-2) Absolute efficiency of gamma counting, O0796 1 40 (ERR-3) Systematic error in gamma counting, O0796 1 41 (ERR-4) Statistic of gamma counting. There is, in O0796 1 42 addition, a 1% systematic error in the gamma counting O0796 1 43 due to uncertainty in the background subtraction O0796 1 44 procedure. O0796 1 45 (ERR-5) Statistic of alpha counting, O0796 1 46 (ERR-6) Solid angle of alpha detector, O0796 1 47 (ERR-7) Gamma branch for Be-7 decay, O0796 1 48 (ERR-8) Timing of the rotation cycle. O0796 1 49 CORRECTION On backscattering of product nuclei. O0796 1 50 HISTORY (20040623C) O0796 1 51 (20040706A) Recompiled. O0796 1 52 (20221116U) SD: N2 corrected in NOSUBENT recoreds. O0796 1 53 ENDBIB 51 0 O0796 1 54 COMMON 8 6 O0796 1 55 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 O0796 1 56 ERR-7 ERR-8 O0796 1 57 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT O0796 1 58 PER-CENT PER-CENT O0796 1 59 3.5 3. 1. 0.7 0.5 0.5O0796 1 60 0.6 0.3 O0796 1 61 ENDCOMMON 6 0 O0796 1 62 ENDSUBENT 61 0 O0796 199999 SUBENT O0796002 20040706 0000O079600200001 BIB 3 5 O079600200002 REACTION (3-LI-7(D,P)3-LI-8,,SIG) O079600200003 COMMENT - By authors. As the final result we have adopted anO079600200004 average of the two aluminum-backed targets believed to O079600200005 be free from backscattering loss. O079600200006 ERR-ANALYS (MONIT-ERR) The uncertainty is given by authors. O079600200007 ENDBIB 5 0 O079600200008 COMMON 2 3 O079600200009 MONIT MONIT-ERR O079600200010 MB MB O079600200011 269. 9. O079600200012 ENDCOMMON 3 0 O079600200013 DATA 3 1 O079600200014 EN DATA ERR-T O079600200015 MEV MB MB O079600200016 0.776 155. 8. O079600200017 ENDDATA 3 0 O079600200018 ENDSUBENT 17 0 O079600299999 NOSUBENT O0796003 20040716 O091O0796 3 1 NOSUBENT O0796004 20040716 O091O0796 4 1 ENDENTRY 4 0 O079699999999