ENTRY M0241 20090323 M047M024100000001 SUBENT M0241001 20090323 M047M024100100001 BIB 13 40 M024100100002 TITLE C-12(G,N)C-11 giant resonance with gamma rays. M024100100003 AUTHOR (W.A.LOCHSTET,W.E.STEPHENS) M024100100004 REFERENCE (J,PR,141,1002,1966) M024100100005 INSTITUTE (1USAPEN) M024100100006 FACILITY (VDGT,1USAPEN) It provided a proton beam at energies M024100100007 above 3.8 MeV. M024100100008 INC-SOURCE (MPH,P-T) Gamma-rays from the T(p,g)He4 reaction. M024100100009 DETECTOR (COIN,NAICR,NAICR). Neutrons were detected by means M024100100010 of the positron radioactivity of C-11 using M024100100011 coincidences of the annihilation radiation from the M024100100012 positrons. M024100100013 The gamma-rays were monitored by 4.5 in.-diameter NaI M024100100014 crystal collimated with a 2 in. hole in a 4 in. lead M024100100015 shield and placed 2 ft from the target. M024100100016 SAMPLE Targets of thickness 428, 1110 and 1543 g/cm-sq were M024100100017 used. M024100100018 PART-DET (B+) M024100100019 (AR) M024100100020 COMMENT The cross section of C-12(g,n)C-11 reaction was M024100100021 measured in the energy range from the treshold up to M024100100022 26.7 mev. The peak cross section was 7.8 mb at both M024100100023 22.15 and 23.0 MeV, and the additional structure was M024100100024 observed at 25.6 MeV. M024100100025 The comparision with theoretical calculations M024100100026 indicates that the deformed nucleus assumption comes M024100100027 closest to describing the experimental results. M024100100028 comparision of cross section for C-12(g,n)C-11 M024100100029 reaction was suggested some isotropic-spin M024100100030 impurities in the C-12 states of giant dipole M024100100031 resonance. M024100100032 ADD-RES (COMP). Comparision with experimental data of early M024100100033 cross section measurements C-12(g,n)C-11 reaction M024100100034 was made. M024100100035 (E-DIS) Energy distribution of gamma quanta used in M024100100036 the experiment. M024100100037 STATUS (CURVE) M024100100038 HISTORY (19900301C) M024100100039 (19910202A) Corrected by V.Varlamov, V.Mclane M024100100040 (20090318A) Corrected by V.Varlamov: SUBENT 003 M024100100041 added, lowercase. M024100100042 ENDBIB 40 0 M024100100043 NOCOMMON 0 0 M024100100044 ENDSUBENT 43 0 M024100199999 SUBENT M0241002 20090323 M047M024100200001 BIB 2 5 M024100200002 REACTION (6-C-12(G,N)6-C-11,,SIG) M024100200003 ERR-ANALYS (ERR-S) Statistical errors are presented. M024100200004 The uncertainty in absolute effeciency of positron M024100200005 detector was estimated to be 5%, and that for gamma M024100200006 monitor 4%. M024100200007 ENDBIB 5 0 M024100200008 NOCOMMON 0 0 M024100200009 DATA 4 96 M024100200010 EN DATA ERR-S EN-RSL M024100200011 MEV MB MB MEV M024100200012 20.11 0.77 0.11 M024100200013 20.19 0.76 0.12 M024100200014 20.26 0.87 0.13 M024100200015 20.28 0.98 0.04 M024100200016 20.36 1.09 0.15 M024100200017 20.47 1. 0.26 M024100200018 20.49 1.09 0.17 M024100200019 20.55 1.25 0.28 M024100200020 20.61 1.23 0.09 M024100200021 20.65 1.48 0.1 M024100200022 20.75 1.51 0.11 M024100200023 20.76 1.61 0.12 M024100200024 20.77 1.82 0.13 M024100200025 20.92 2.09 0.14 M024100200026 21. 2.38 0.15 M024100200027 21.02 2.61 0.16 M024100200028 21.14 2.9 0.17 M024100200029 21.19 3.27 0.18 M024100200030 21.26 3.64 0.19 M024100200031 21.32 4.09 0.2 M024100200032 21.39 4.64 0.21 M024100200033 21.47 5.51 0.23 M024100200034 21.54 5.19 0.23 M024100200035 21.58 5.77 0.24 M024100200036 21.63 6.05 0.25 M024100200037 21.65 5.73 0.26 M024100200038 21.71 6.18 0.27 M024100200039 21.76 6.09 0.28 M024100200040 21.82 6. 0.29 M024100200041 21.87 6.78 0.3 M024100200042 21.95 7.58 0.31 M024100200043 22.04 7.63 0.32 0.1 M024100200044 22.11 7.65 0.34 M024100200045 22.15 7.8 0.33 M024100200046 22.19 8.1 0.31 M024100200047 22.23 7.46 0.32 M024100200048 22.3 6.73 0.31 M024100200049 22.38 6.77 0.3 M024100200050 22.4 7.09 0.29 M024100200051 22.45 6.14 0.29 M024100200052 22.5 6.77 0.28 M024100200053 22.52 6.55 0.27 M024100200054 22.57 6.91 0.26 M024100200055 22.7 7.5 0.25 M024100200056 22.78 7.36 0.25 M024100200057 22.83 7.68 0.24 M024100200058 22.9 7.73 0.23 M024100200059 22.99 7.8 0.23 M024100200060 23.08 7.62 0.23 M024100200061 23.13 8. 0.23 M024100200062 23.18 7.68 0.23 M024100200063 23.25 7.56 0.23 M024100200064 23.31 7.8 0.24 M024100200065 23.44 7.55 0.24 M024100200066 23.52 7.55 0.24 M024100200067 23.59 7.27 0.24 M024100200068 23.67 7.36 0.24 M024100200069 23.74 7.27 0.24 M024100200070 23.83 7.05 0.25 M024100200071 23.9 6.72 0.25 M024100200072 23.98 6.36 0.25 M024100200073 24.04 6. 0.25 M024100200074 24.13 5.67 0.25 M024100200075 24.19 5.55 0.25 M024100200076 24.27 5. 0.25 M024100200077 24.35 4.86 0.26 M024100200078 24.42 4.57 0.26 M024100200079 24.51 4.13 0.26 M024100200080 24.57 4. 0.25 M024100200081 24.65 4.52 0.25 M024100200082 24.73 4.3 0.25 M024100200083 24.8 4.55 0.26 M024100200084 24.86 4.45 0.27 M024100200085 24.95 4.53 0.27 M024100200086 25.0 4.3 0.27 M024100200087 25.1 4.5 0.27 M024100200088 25.2 4.7 0.27 M024100200089 25.25 5.1 0.27 M024100200090 25.3 5.6 0.27 M024100200091 25.4 5.4 0.27 M024100200092 25.5 5.5 0.27 M024100200093 25.6 5.8 0.27 M024100200094 25.62 5.64 0.27 M024100200095 25.69 5.73 0.27 M024100200096 25.83 5.23 0.27 M024100200097 25.91 5.14 0.27 M024100200098 26.02 5.2 0.27 0.2 M024100200099 26.09 5. 0.27 M024100200100 26.15 4.59 0.27 M024100200101 26.24 5.68 0.27 M024100200102 26.3 4.55 0.27 M024100200103 26.36 4.65 0.27 M024100200104 26.47 4.82 0.27 M024100200105 26.53 4.48 0.27 M024100200106 26.61 4.55 0.27 M024100200107 26.69 4.32 0.27 M024100200108 ENDDATA 98 0 M024100200109 ENDSUBENT 108 0 M024100299999 SUBENT M0241003 20090323 M047M024100300001 BIB 3 3 M024100300002 REACTION (6-C-12(G,N)6-C-11,,INT) M024100300003 ERR-ANALYS No information. M024100300004 STATUS (TABLE) Data taken from text in article. M024100300005 ENDBIB 3 0 M024100300006 NOCOMMON 0 0 M024100300007 DATA 3 1 M024100300008 EN-MIN EN-MAX DATA M024100300009 MEV MEV MB*MEV M024100300010 20. 27. 36. M024100300011 ENDDATA 3 0 M024100300012 ENDSUBENT 11 0 M024100399999 ENDENTRY 3 0 M024199999999