ENTRY 22419 20121218 22342241900000001 SUBENT 22419001 20121218 22342241900100001 BIB 17 49 2241900100002 TITLE Neutron capture of 26Mg at thermonuclear energies 2241900100003 AUTHOR (P.Mohr,H.Beer,H.Oberhummer,G.Staudt) 2241900100004 INSTITUTE (2GERTHD) Mohr, Institute of Nuclear Physics, 2241900100005 Technical University, Darmstadt 2241900100006 (2AUSTHV) Mohr, Oberhummer,Institute of Nuclear 2241900100007 Physics,Technical University,Vienna 2241900100008 (2GERKFK) Beer, Institute of Nuclear Physics, 2241900100009 Karlsruhe Research Center 2241900100010 (2GERTUE) Staudt, Physical Institute of the Tuebingen 2241900100011 University 2241900100012 REFERENCE (J,PR/C,58,(2),932,199808) Main Reference, data are 2241900100013 given 2241900100014 FACILITY (VDG,2GERKFK) 3.75 MV Van-de-Graaff accelerator of 2241900100015 Forschungszentrum Karlsruhe 2241900100016 INC-SOURCE (P-LI7) Reaction (3-LI-7(P,N)4-BE-7). Proton beam 2241900100017 current 80-100 microA, repetition frequency 2241900100018 1 MHz, pulse width 10 ns 2241900100019 DECAY-DATA (12-MG-27,9.458MIN,B-,,, 2241900100020 DG,843.76,0.718, 2241900100021 DG,1014.44,0.280) 2241900100022 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2241900100023 DECAY-MON (79-AU-198-G,2.69517D,DG,411.80,0.9550) 2241900100024 METHOD (TOF) Time-of-flight 2241900100025 DETECTOR (HPGE) For gammas, relative efficiency 60% compared 2241900100026 to 3x3 in. NaI detector 2241900100027 (GLASD) 6LI Glass monitor for neutron flux 2241900100028 INC-SPECT .Combining proton energy and target thicknesses 2241900100029 different energy spectra were obtained. 2241900100030 (i) For proton energy close to reaction threshold 2241900100031 1881 keV one obtains a quasi-Maxwellian spectrum 2241900100032 with kT=25 keV. 2241900100033 (ii) Very close to reaction threshold a narrow spec- 2241900100034 trum between 12 and 52 keV was obtained. 2241900100035 (iii) Using four higher proton energies one obtains 2241900100036 four different neutron energy spectra with 2241900100037 energy widths 20-50 keV 2241900100038 SAMPLE .Two oxide samples Mg-O in thin-walled aluminium con- 2241900100039 tainer, mass 29.20+-0.05 and 99.50 milligram, 26Mg 2241900100040 content 98.79+-1.90%, and metallic natural sample, 2241900100041 mass 47.77+-0.02 mg, 26Mg content 11.01+-0.02% 2241900100042 .Gold metallic sample, weight 15.8-16.5 mg 2241900100043 ADD-RES (THEO) Direct Capture Model, Folding potential, 2241900100044 Spectroscopic factors and Potential resonances 2241900100045 are discussed 2241900100046 STATUS (TABLE) Data taken from Table III of PR/C,58,(2),932 2241900100047 ERR-ANALYS (DATA-ERR) Errors are not specified. Must be total 2241900100048 HISTORY (19991124C) + + Compiled by S.M. + + 2241900100049 (20121218A) SD: In Subent 002: EN-MEAN -> KT; 2241900100050 ERR-T -> DATA-ERR in Subent 002,003. 2241900100051 ENDBIB 49 0 2241900100052 NOCOMMON 0 0 2241900100053 ENDSUBENT 52 0 2241900199999 SUBENT 22419002 20121218 22342241900200001 BIB 2 4 2241900200002 REACTION (12-MG-26(N,G)12-MG-27,,SIG,,MXW) 2241900200003 HISTORY (20121218A) SD: Col. EN-MEAN -> KT; value was changed, 2241900200004 according to presentation in the Tbl. III. 2241900200005 ERR-T -> DATA-ERR. 2241900200006 ENDBIB 4 0 2241900200007 NOCOMMON 0 0 2241900200008 DATA 3 1 2241900200009 KT DATA DATA-ERR 2241900200010 KEV MICRO-B MICRO-B 2241900200011 25.0 124.2 7.5 2241900200012 ENDDATA 3 0 2241900200013 ENDSUBENT 12 0 2241900299999 SUBENT 22419003 20121218 22342241900300001 BIB 3 4 2241900300002 REACTION (12-MG-26(N,G)12-MG-27,,SIG,,SPA) Averaged over neutr. 2241900300003 energy spectrum 2241900300004 COMMENT .EN-RSL in data table is supposed by compiler 2241900300005 HISTORY (20121218U) SD: ERR-T -> DATA-ERR. 2241900300006 ENDBIB 4 0 2241900300007 NOCOMMON 0 0 2241900300008 DATA 4 5 2241900300009 EN-MEAN EN-RSL DATA DATA-ERR 2241900300010 KEV KEV MICRO-B MICRO-B 2241900300011 33. 20. 56.8 3.0 2241900300012 102. 82.1 4.5 2241900300013 151. 84.9 5.0 2241900300014 178. 188. 28. 2241900300015 208. 50. 735. 40. 2241900300016 ENDDATA 7 0 2241900300017 ENDSUBENT 16 0 2241900399999 ENDENTRY 3 0 2241999999999