ENTRY 30530 20050623 31173053000000001 SUBENT 30530001 20050623 31173053000100001 BIB 15 32 3053000100002 INSTITUTE (3CRORBZ) 3053000100003 REFERENCE (J,NP/A,325,189,197908) 3053000100004 AUTHOR (B.Antolkovic, D.Rupnik) 3053000100005 TITLE The (n,a) reaction on 11B induced by 14.4 mev neutrons 3053000100006 FACILITY (CCW) 3053000100007 INC-SOURCE (D-T) 3053000100008 METHOD 918 'Hammer stars' from the reaction 3053000100009 11B(n,a)8Li(B-)8Be(2a) were recorded, giving (1.) 3053000100010 spatial orientations of the 3 alphas and the 8Li 3053000100011 particle and (2.) the energies of the 3 alphas. 3053000100012 DETECTOR (PLATE) Boron-loaded nuclear emulsions were used 3053000100013 both as a target and detector 3053000100014 ANALYSIS Calculated were 3053000100015 -energy of 8Li nucleus 3053000100016 -Q-value for each event, giving information on whether 3053000100017 8Li was left in ground or first excited state. 3053000100018 The outgoing system was kinematically overdetermined 3053000100019 which was valuable particularly for efficient 3053000100020 background subtraction. 3053000100021 MONITOR No information 3053000100022 PART-DET (A) Alpha from initial (n,a) process and 3053000100023 2 alphas from 8Be decay 3053000100024 (3-LI-8) 3053000100025 STATUS Num.data taken from priv.comm. by Antolkovic(12/12/79) 3053000100026 (diff.data)and from Nucl.Phys.A325,P.195(cross sect.) 3053000100027 HISTORY (19800117C) OS 3053000100028 (20040311U) SD:changed to 4-dig. year and lower case 3053000100029 CORRECTION Eventwise kinematic analysis was applied for 3053000100030 subtraction of 12C(n,n-prime)3alpha background events 3053000100031 (7 percent of measured events for the range of 3053000100032 Q-values considered) 3053000100033 ERR-ANALYS No information 3053000100034 ENDBIB 32 0 3053000100035 COMMON 1 3 3053000100036 EN 3053000100037 MEV 3053000100038 1.4400E+01 3053000100039 ENDCOMMON 3 0 3053000100040 ENDSUBENT 39 0 3053000199999 SUBENT 30530002 20050623 31173053000200001 BIB 1 2 3053000200002 REACTION (5-B-11(N,A)3-LI-8,PAR,SIG) Transitions to 3053000200003 ground and first excited state of 8Li 3053000200004 ENDBIB 2 0 3053000200005 NOCOMMON 0 0 3053000200006 DATA 3 2 3053000200007 E-LVL DATA DATA-ERR 3053000200008 MEV MB MB 3053000200009 0.0000E+00 2.0500E+01 3.5000E+00 3053000200010 9.8000E-01 1.0900E+01 2.5000E+00 3053000200011 ENDDATA 4 0 3053000200012 ENDSUBENT 11 0 3053000299999 SUBENT 30530003 20050623 31173053000300001 BIB 1 2 3053000300002 REACTION (5-B-11(N,A)3-LI-8,PAR,DA) 3053000300003 transition to ground state of 8Li 3053000300004 ENDBIB 2 0 3053000300005 COMMON 1 3 3053000300006 E-LVL 3053000300007 MEV 3053000300008 0.0000E+00 3053000300009 ENDCOMMON 3 0 3053000300010 DATA 4 20 3053000300011 ANG-CM ANG-ERR DATA-CM DATA-ERR 3053000300012 ADEG ADEG MB/SR MB/SR 3053000300013 1.0000E+01 5.0000E+00 1.5200E+00 6.0000E-01 3053000300014 2.0000E+01 5.0000E+00 1.6900E+00 5.0000E-01 3053000300015 3.0000E+01 5.0000E+00 1.5900E+00 3.8000E-01 3053000300016 4.0000E+01 5.0000E+00 1.1800E+00 3.0000E-01 3053000300017 5.0000E+01 5.0000E+00 1.4100E+00 2.8000E-01 3053000300018 6.0000E+01 5.0000E+00 1.4000E+00 2.8000E-01 3053000300019 6.7500E+01 2.5000E-01 1.8000E+00 4.3000E-01 3053000300020 7.2500E+01 2.5000E-01 1.6600E+00 4.1000E-01 3053000300021 7.7500E+01 2.5000E-01 2.5100E+00 4.8000E-01 3053000300022 8.2500E+01 2.5000E-01 3.1800E+00 5.5000E-01 3053000300023 8.7500E+01 2.5000E-01 2.4500E+00 5.0000E-01 3053000300024 9.2500E+01 2.5000E-01 1.1800E+00 3.5000E-01 3053000300025 1.0000E+02 5.0000E+00 1.1100E+00 2.4000E-01 3053000300026 1.1000E+02 5.0000E+00 1.2400E+00 2.5000E-01 3053000300027 1.2000E+02 5.0000E+00 1.7600E+00 3.1000E-01 3053000300028 1.3000E+02 5.0000E+00 2.1000E+00 3.6000E-01 3053000300029 1.4000E+02 5.0000E+00 1.7700E+00 3.5000E-01 3053000300030 1.5000E+02 5.0000E+00 1.8500E+00 4.0000E-01 3053000300031 1.6000E+02 5.0000E+00 8.9000E-01 3.8000E-01 3053000300032 1.7000E+02 5.0000E+00 6.6000E-01 3.9000E-01 3053000300033 ENDDATA 22 0 3053000300034 ENDSUBENT 33 0 3053000399999 SUBENT 30530004 20050623 31173053000400001 BIB 1 2 3053000400002 REACTION (5-B-11(N,A)3-LI-8,PAR,DA) 3053000400003 transition to first excited state of 8Li 3053000400004 ENDBIB 2 0 3053000400005 COMMON 1 3 3053000400006 E-LVL 3053000400007 MEV 3053000400008 9.8000E-01 3053000400009 ENDCOMMON 3 0 3053000400010 DATA 4 17 3053000400011 ANG-CM ANG-ERR DATA-CM DATA-ERR 3053000400012 ADEG ADEG MB/SR MB/SR 3053000400013 1.0000E+01 5.0000E+00 1.4200E+00 6.0000E-01 3053000400014 2.0000E+01 5.0000E+00 1.8700E+00 5.0000E-01 3053000400015 3.0000E+01 5.0000E+00 1.5000E+00 3.6000E-01 3053000400016 4.0000E+01 5.0000E+00 1.2800E+00 3.0000E-01 3053000400017 5.0000E+01 5.0000E+00 6.5000E-01 2.2000E-01 3053000400018 6.0000E+01 5.0000E+00 9.3000E-01 2.4000E-01 3053000400019 7.0000E+01 5.0000E+00 8.8000E-01 2.0000E-01 3053000400020 8.0000E+01 5.0000E+00 6.3000E-01 1.8000E-01 3053000400021 9.0000E+01 5.0000E+00 4.5000E-01 1.5000E-01 3053000400022 1.0000E+02 5.0000E+00 6.2000E-01 2.0000E-01 3053000400023 1.1000E+02 5.0000E+00 1.2500E+00 2.5000E-01 3053000400024 1.2000E+02 5.0000E+00 1.2000E+00 2.3000E-01 3053000400025 1.3000E+02 5.0000E+00 1.0300E+00 2.3000E-01 3053000400026 1.4000E+02 5.0000E+00 1.1100E+00 2.6000E-01 3053000400027 1.5000E+02 5.0000E+00 1.2200E+00 3.0000E-01 3053000400028 1.6000E+02 5.0000E+00 6.1000E-01 2.8000E-01 3053000400029 1.7000E+02 5.0000E+00 3.8000E-01 3.6000E-01 3053000400030 ENDDATA 19 0 3053000400031 ENDSUBENT 30 0 3053000499999 SUBENT 30530005 20050623 31173053000500001 BIB 2 3 3053000500002 REACTION (5-B-11(N,A)3-LI-8,,SIG) Excluding (n,an), 3053000500003 sum of partial cross-sections to 1st+2nd excited state3053000500004 STATUS (DEP,30530002) 3053000500005 ENDBIB 3 0 3053000500006 NOCOMMON 0 0 3053000500007 DATA 2 1 3053000500008 DATA DATA-ERR 3053000500009 MB MB 3053000500010 3.1400E+01 4.3000E+00 3053000500011 ENDDATA 3 0 3053000500012 ENDSUBENT 11 0 3053000599999 ENDENTRY 5 0 3053099999999