ENTRY B0173 20020117 B019B017300000001 SUBENT B0173001 20020117 B019B017300100001 BIB 14 40 B017300100002 TITLE The Reaction Rate of the C-13(ALPHA,N)O-16 Process. B017300100003 AUTHOR (E.RAMSTROEM, T.WIEDLING) B017300100004 INSTITUTE (2SWDAE ) B017300100005 REFERENCE (J,AJ,211,223,1977) B017300100006 FACILITY (VDG,2SWDAE ) B017300100007 DETECTOR (BF3) B017300100008 A Number of 20 Boron-Trifluoride Tubes, Each with a B017300100009 Sensitive Length of 100 Cm and a Diameter of 4 Cm were B017300100010 Positioned in a Moderator Assembly in 4 Pi-Geometry. B017300100011 The Whole Detector was Shielded by Boron Plastic, B017300100012 Cadmium, Paraffin and Concrete. A Detector Efficiency B017300100013 Of (18.3 +- 1.5)% was Obtained. B017300100014 SAMPLE Carbon Targets, Made by Heating a 0.1 mm Thick TantalumB017300100015 Foil to Red Heat in an Atmosphere of Methyl Iodide B017300100016 Enriched with C-13 to 89%. The Target Thicknesses were B017300100017 Determined by Weighing Before and After the Cracking B017300100018 Procedure. Additionally, the Thicknesses of the Thin B017300100019 Targets were Determined by Measuring the Width of the B017300100020 Sharp Resonance at 1.056 MeV For the C-13(ALPHA,N)0-16 B017300100021 Reaction. B017300100022 METHOD (EXTB,SITA,BCINT) B017300100023 The Analyzing Magnet of the Van De Graaff Accelerator B017300100024 Was Energy Calibrated by Measuring the Neutron Yield B017300100025 Of the C-13(A,N) Reaction at the Sharp Resonance at B017300100026 1.056 MeV. B017300100027 ANALYSIS The Yield Curve Consists of a Nonresonant Part and a B017300100028 Single Sharp Resonance at 1.056 MeV. B017300100029 ERR-ANALYS No Error Analysis is Given. B017300100030 ADD-RES The Neutron Yields were Measured in Order to B017300100031 Derive an Expression For the Life-Time of C-13 Nuclei B017300100032 Burning by the (ALPHA,N) Process. B017300100033 CORRECTION Energy Degradation of the Alpha-Particles Due to B017300100034 Carbon Deposits on the Targets were Corrected For. B017300100035 STATUS (CURVE) B017300100036 By the Authors the Neutron Yield Per Microcoulomb B017300100037 Was Given. The Yields in Part/Microampere * Hour B017300100038 Were Calculated by the Compiler. B017300100039 HISTORY (19801115C)Nekw B017300100040 (20020111A) Data Units were Changed B017300100041 (20020117U) Last checking has been done. B017300100042 ENDBIB 40 0 B017300100043 NOCOMMON 0 0 B017300100044 ENDSUBENT 43 0 B017300199999 SUBENT B0173002 20020117 B019B017300200001 BIB 3 9 B017300200002 REACTION 1(6-C-13(A,N)8-O-16,,PY,,,EXP) B017300200003 2(6-C-13(A,N)8-O-16,,PY,,,EXP) B017300200004 PART-DET (N) B017300200005 SAMPLE 1Target Thickness 88 Microgram/Cm**2, Corresponding to B017300200006 An Absorption Thickness of 0.176 MeV For 1 MeV Alpha- B017300200007 Particles. B017300200008 2Target Thickness 13 Microgram/Cm**2, Corresponding to B017300200009 An Absorption Thickness of 0.026 MeV For 1 MeV Alpha- B017300200010 Particles. B017300200011 ENDBIB 9 0 B017300200012 NOCOMMON 0 0 B017300200013 DATA 3 39 B017300200014 EN DATA 1DATA 2 B017300200015 MEV PRD/INC PRD/INC B017300200016 0.602 1.2906E-14 B017300200017 0.622 2.2252E-14 B017300200018 0.636 3.1153E-14 B017300200019 0.655 5.3405E-14 B017300200020 0.673 8.9008E-14 B017300200021 0.681 3.4713E-16 B017300200022 0.701 1.6466E-13 B017300200023 0.713 2.0027E-13 B017300200024 0.719 2.3587E-13 B017300200025 0.721 9.3458E-16 B017300200026 0.733 2.6702E-13 B017300200027 0.759 5.3405E-13 B017300200028 0.76 2.2252E-15 B017300200029 0.775 6.6756E-13 B017300200030 0.78 8.0107E-13 B017300200031 0.8 4.4504E-15 B017300200032 0.814 1.2016E-12 B017300200033 0.835 2.0027E-12 B017300200034 0.839 1.0236E-14 B017300200035 0.854 2.4477E-12 B017300200036 0.874 3.6048E-12 B017300200037 0.878 2.0472E-14 B017300200038 0.894 4.8954E-12 B017300200039 0.899 2.8037E-14 B017300200040 0.913 8.4557E-12 B017300200041 0.918 3.8718E-14 B017300200042 0.933 1.2016E-11 B017300200043 0.939 5.3405E-14 B017300200044 0.953 1.9137E-11 B017300200045 0.957 7.1206E-14 B017300200046 0.971 2.0917E-11 B017300200047 0.976 1.0236E-13 B017300200048 0.997 1.4241E-13 B017300200049 1.04 9.3458E-11 B017300200050 1.05 1.7802E-10 B017300200051 1.09 3.1153E-10 B017300200052 1.11 3.5603E-10 B017300200053 1.13 3.8718E-10 B017300200054 1.15 4.4504E-10 B017300200055 ENDDATA 41 0 B017300200056 ENDSUBENT 55 0 B017300299999 ENDENTRY 2 0 B017399999999