ENTRY C3049 20250228 C304900000001 SUBENT C3049001 20250228 20250711 C304900100001 BIB 9 31 C304900100002 TITLE Energy, strength, and alpha width measurements of C304900100003 Ec.m. = 1323 and 1487 keV resonances in C304900100004 15N(alpha,gamma)19F C304900100005 AUTHOR (R.Fang,J.Gorres,R.J.DeBoer,S.Moylan,A.T.Sanchez, C304900100006 T.L.Bailey, S.Carmichael,J.Koros,K.Lee,K.Manukyan, C304900100007 M.Matney,J.P.McDonaugh,D.Robertson,J.Rufino,E.Stech, C304900100008 M.Couder) C304900100009 REFERENCE (J,PR/C,110,025806,2024) C304900100010 #doi:10.1103/PhysRevC.110.025806 C304900100011 INSTITUTE (1USANOT) C304900100012 FACILITY (VDG,1USANOT) 5 MV Stable ion Accelerator for C304900100013 Nuclear Astrophysics (Sta. ANA). C304900100014 DETECTOR (HPGE) Gamma rays were detected using a high purity C304900100015 germanium detector with a relative efficiency of 104%. C304900100016 SAMPLE (7-N-15,ENR=0.995) The Ti 15N target was fabricated C304900100017 at the Forschungszentrum Karlsruhe through reactive C304900100018 sputtering of Ti in a 99.5% enriched 15N environment. C304900100019 The energy loss of the beam in the target at Ec.m. = C304900100020 1323 keV was deduced from the excitation function to C304900100021 be 11.7+-0.7 keV in the center of mass frame using C304900100022 the full width at half maximum (FWHM) from the thick C304900100023 target yield. The stability of the target was C304900100024 verified by checking the yield of the Ec.m. = 1323 C304900100025 keV resonance at various times throughout the C304900100026 experiment. No target material loss was observed C304900100027 during the close distance measurements. However, a C304900100028 23% reduction in Ti 15N content was observed after C304900100029 depositing 0.7 C of beam from the longer duration, C304900100030 far distance, measurements at Ec.m. = 1323 keV. C304900100031 STATUS (APRVD) Approved by R.Fang on March 6, 2025. C304900100032 HISTORY (20250228C) BP C304900100033 ENDBIB 31 0 C304900100034 NOCOMMON 0 0 C304900100035 ENDSUBENT 34 0 C304900199999 SUBENT C3049002 20250228 20250711 C304900200001 BIB 5 16 C304900200002 REACTION (7-N-15(A,G)9-F-19,PAR,MLT,,MSC) C304900200003 Yield per incident alpha particle. C304900200004 EN-SEC (E-LVL,9-F-19) C304900200005 METHOD (GSPEC) The excitation functions over the Ec.m. = C304900200006 1323 keV resonance in the 15N(alpha,gamma) 19F C304900200007 reaction was measured. The energy spectrum measured C304900200008 by the HPGe detector when populating the Ex = 5337 C304900200009 keV state. To mitigate angular distribution effects, C304900200010 the detector was positioned at an angle of 55 degree C304900200011 relative to the beam axis, as this angle corresponds C304900200012 to the minimum of the second-order Legendre polynomial.C304900200013 ERR-ANALYS (ERR-S) The statistical uncertainty of the yield. C304900200014 There is an unknown uncertainty in the center of mass C304900200015 energy. C304900200016 STATUS (TABLE,,R.Fang,J,PR/C,110,025806,2024) - Fig. 5 top C304900200017 Data were received from R.Fang on March 3, 2025. C304900200018 ENDBIB 16 0 C304900200019 COMMON 1 3 C304900200020 E-LVL C304900200021 KEV C304900200022 5337.0 C304900200023 ENDCOMMON 3 0 C304900200024 DATA 3 58 C304900200025 EN-CM DATA ERR-S C304900200026 KEV PRT/INC PRT/INC C304900200027 1314.448725 6.36E-148.20453E-15 C304900200028 1314.512417 4.70E-134.65717E-14 C304900200029 1315.949428 6.40E-134.99065E-14 C304900200030 1317.571431 1.01E-127.74111E-14 C304900200031 1318.627332 1.19E-128.01031E-14 C304900200032 1319.4993 2.20E-121.06162E-13 C304900200033 1320.002763 2.73E-121.32953E-13 C304900200034 1320.421206 3.73E-12 1.4621E-13 C304900200035 1320.598533 4.52E-12 1.7559E-13 C304900200036 1320.853904 5.75E-122.52895E-13 C304900200037 1321.130584 6.57E-122.21582E-13 C304900200038 1321.421484 7.98E-122.41026E-13 C304900200039 1321.655646 9.98E-122.65286E-13 C304900200040 1321.840152 9.87E-122.67662E-13 C304900200041 1322.053059 1.13E-112.71549E-13 C304900200042 1322.294375 1.09E-112.83237E-13 C304900200043 1322.486024 1.28E-11 3.0694E-13 C304900200044 1322.677687 1.32E-113.07271E-13 C304900200045 1322.911961 1.38E-113.16505E-13 C304900200046 1323.075254 1.45E-113.24183E-13 C304900200047 1323.26696 1.38E-113.18835E-13 C304900200048 1323.423175 1.47E-113.23631E-13 C304900200049 1323.650413 1.52E-11 3.3198E-13 C304900200050 1323.771141 1.60E-113.33742E-13 C304900200051 1324.147564 1.58E-113.36458E-13 C304900200052 1324.488521 1.64E-113.42224E-13 C304900200053 1324.843732 1.70E-113.47464E-13 C304900200054 1325.234519 1.72E-11 3.5423E-13 C304900200055 1325.56851 1.70E-113.47774E-13 C304900200056 1325.902542 1.73E-113.39958E-13 C304900200057 1326.329029 1.74E-113.26704E-13 C304900200058 1326.727144 1.71E-113.08753E-13 C304900200059 1327.047102 1.70E-113.30367E-13 C304900200060 1327.384876 1.68E-113.15033E-13 C304900200061 1328.074782 1.72E-113.25161E-13 C304900200062 1328.796885 1.76E-113.29529E-13 C304900200063 1329.50495 1.66E-113.23383E-13 C304900200064 1330.231001 1.55E-113.16852E-13 C304900200065 1330.925206 1.39E-113.18713E-13 C304900200066 1332.342658 1.13E-113.05668E-13 C304900200067 1333.68958 7.53E-121.84816E-13 C304900200068 1333.789379 7.48E-122.62693E-13 C304900200069 1335.176259 4.07E-121.57053E-13 C304900200070 1335.208355 3.89E-122.02085E-13 C304900200071 1336.699448 1.92E-121.01595E-13 C304900200072 1336.713721 2.14E-12 1.4906E-13 C304900200073 1338.04857 1.19E-121.08159E-13 C304900200074 1339.43409 8.57E-139.52441E-14 C304900200075 1340.727413 7.31E-135.97051E-14 C304900200076 1340.863212 6.15E-137.68728E-14 C304900200077 1342.364611 9.57E-141.00172E-14 C304900200078 1342.371762 4.78E-136.69043E-14 C304900200079 1343.738053 2.89E-134.98343E-14 C304900200080 1344.908179 3.01E-13 2.7162E-14 C304900200081 1345.147992 1.91E-134.23441E-14 C304900200082 1346.608809 4.48E-146.39653E-15 C304900200083 1350.945797 2.58E-145.15831E-15 C304900200084 1355.016709 1.87E-144.16575E-15 C304900200085 ENDDATA 60 0 C304900200086 ENDSUBENT 85 0 C304900299999 SUBENT C3049003 20250228 20250711 C304900300001 BIB 5 16 C304900300002 REACTION (7-N-15(A,G)9-F-19,PAR,MLT,,MSC) C304900300003 Yield per incident alpha particle. C304900300004 EN-SEC (E-LVL,9-F-19) C304900300005 METHOD (GSPEC) The excitation functions over the Ec.m. = C304900300006 1487 keV resonance in the 15N(alpha,gamma) 19F C304900300007 reaction was measured. The energy spectrum measured C304900300008 by the HPGe detector when populating the Ex = 5501 C304900300009 keV state. To mitigate angular distribution effects, C304900300010 the detector was positioned at an angle of 55 degree C304900300011 relative to the beam axis, as this angle corresponds C304900300012 to the minimum of the second-order Legendre polynomial.C304900300013 ERR-ANALYS (ERR-S) The statistical uncertainty of the yield. C304900300014 There is an unknown uncertainty in the center of mass C304900300015 energy. C304900300016 STATUS (TABLE,,R.Fang,J,PR/C,110,025806,2024) - Fig. 5 bottom C304900300017 Data were received from R.Fang on March 3, 2025. C304900300018 ENDBIB 16 0 C304900300019 COMMON 1 3 C304900300020 E-LVL C304900300021 KEV C304900300022 5501.0 C304900300023 ENDCOMMON 3 0 C304900300024 DATA 3 41 C304900300025 EN-CM DATA ERR-S C304900300026 KEV PRT/INC PRT/INC C304900300027 1472.424835 3.65E-12 2.14E-13 C304900300028 1473.084025 3.59E-12 2.02E-13 C304900300029 1473.5935 5.29E-12 2.61E-13 C304900300030 1474.20049 5.95E-12 2.12E-13 C304900300031 1474.830093 7.58E-12 2.98E-13 C304900300032 1475.189927 8.67E-12 3.24E-13 C304900300033 1475.542306 9.45E-12 3.31E-13 C304900300034 1475.902227 1.05E-11 3.35E-13 C304900300035 1476.367189 1.19E-11 3.76E-13 C304900300036 1476.787217 1.36E-11 4.23E-13 C304900300037 1477.10978 1.39E-11 3.98E-13 C304900300038 1477.462389 1.38E-11 4.16E-13 C304900300039 1477.845054 1.53E-11 4.61E-13 C304900300040 1478.220265 1.62E-11 5.00E-13 C304900300041 1478.580512 1.72E-11 5.23E-13 C304900300042 1478.940802 1.73E-11 5.28E-13 C304900300043 1479.398735 1.75E-11 5.25E-13 C304900300044 1479.721583 1.86E-11 5.30E-13 C304900300045 1480.127069 2.01E-11 5.63E-13 C304900300046 1480.202165 1.91E-11 3.92E-13 C304900300047 1480.495059 1.88E-11 5.47E-13 C304900300048 1480.848071 1.79E-11 5.34E-13 C304900300049 1480.923186 1.76E-11 4.99E-13 C304900300050 1481.21615 1.86E-11 5.44E-13 C304900300051 1481.614328 1.80E-11 5.45E-13 C304900300052 1481.967474 1.82E-11 5.47E-13 C304900300053 1482.410845 1.77E-11 5.27E-13 C304900300054 1483.132403 1.74E-11 5.67E-13 C304900300055 1483.169989 1.68E-11 4.84E-13 C304900300056 1483.891731 1.58E-11 5.36E-13 C304900300057 1485.395926 1.46E-11 6.17E-13 C304900300058 1486.915936 1.08E-11 4.29E-13 C304900300059 1487.683761 9.72E-12 3.81E-13 C304900300060 1488.361418 8.09E-12 3.33E-13 C304900300061 1489.189875 7.02E-12 2.80E-13 C304900300062 1489.935684 6.36E-12 2.67E-13 C304900300063 1490.704289 5.27E-12 2.30E-13 C304900300064 1491.480629 5.01E-12 2.02E-13 C304900300065 1492.257172 3.97E-12 1.89E-13 C304900300066 1492.93587 3.83E-12 2.04E-13 C304900300067 1493.712792 2.78E-12 1.78E-13 C304900300068 ENDDATA 43 0 C304900300069 ENDSUBENT 68 0 C304900399999 SUBENT C3049004 20250228 20250711 C304900400001 BIB 6 31 C304900400002 REACTION 1(7-N-15(A,G),,EN) C304900400003 2(7-N-15(A,G),,WID/STR) C304900400004 REL-REF (A,,D.R.Tilley+,J,NP/A,595,1,1995) Resonance strength C304900400005 accepted value. C304900400006 ANALYSIS (SLA,SHAPE) The energies of the resonances are C304900400007 calculated using gamma energies and applying weighted C304900400008 averaging, not the yield curve. The excitation C304900400009 functions for both resonances were fitted using the C304900400010 least square fit (LSF) method with the free C304900400011 parameters: resonance strength, width, and Thetatarget.C304900400012 ERR-ANALYS (ERR-T) The uncertainties of resonance strengths were C304900400013 estimated using a Monte Carlo (MC) procedure. The C304900400014 excitation functions were fitted numerous times with C304900400015 the value of both the target thickness and the C304900400016 stopping power of the beam being randomly generated C304900400017 on a Gaussian distribution with their systematic C304900400018 uncertainty as the standard deviation. The standard C304900400019 deviation of the distributions of the fitted C304900400020 parameters resulting from 10 000 iterations was added C304900400021 quadratically to the statistical uncertainty of the C304900400022 original LSF resulting in the total fitting procedure C304900400023 uncertainty on those parameters. C304900400024 (ERR-SYS) Resonance strength systematic uncertainties. C304900400025 (ERR-1) MC procedure. C304900400026 (ERR-2) Branching ratio. C304900400027 (ERR-3) Detector efficiency. C304900400028 (ERR-4) Summing effect. C304900400029 (ERR-5) Charge collection. C304900400030 CORRECTION Doppler shift corrected photopeak energies. C304900400031 STATUS (DEP,C3049002) C304900400032 (TABLE,,R.Fang,J,PR/C,110,025806,2024) Table I C304900400033 ENDBIB 31 0 C304900400034 COMMON 6 3 C304900400035 ERR-SYS ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 C304900400036 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C304900400037 10.0 7.9 2.7 4.6 0.6 3.0C304900400038 ENDCOMMON 3 0 C304900400039 DATA 4 1 C304900400040 DATA 1ERR-T 1DATA 2ERR-T 2 C304900400041 KEV KEV EV EV C304900400042 1321.6 0.6 1.65 0.17 C304900400043 ENDDATA 3 0 C304900400044 ENDSUBENT 43 0 C304900499999 SUBENT C3049005 20250228 20250711 C304900500001 BIB 6 35 C304900500002 REACTION 1(7-N-15(A,G),,EN) C304900500003 2(7-N-15(A,G),,WID/STR) C304900500004 REL-REF (A,,D.R.Tilley+,J,NP/A,595,1,1995) Resonance strength C304900500005 accepted value. C304900500006 (A,F0748004,S.Wilmes+,J,PR/C,66,065802,2002) C304900500007 (A,O2409002,A.Di Leva+,J,PR/C,95,045803,2017) PublishedC304900500008 values. C304900500009 ANALYSIS (SLA,SHAPE) The energies of the resonances are C304900500010 calculated using gamma energies and applying weighted C304900500011 averaging, not the yield curve. The excitation C304900500012 functions for both resonances were fitted using the C304900500013 least square fit (LSF) method with the free C304900500014 parameters: resonance strength, width, and Thetatarget.C304900500015 ERR-ANALYS (ERR-T) The uncertainties of resonance strengths were C304900500016 estimated using a Monte Carlo (MC) procedure. The C304900500017 excitation functions were fitted numerous times with C304900500018 the value of both the target thickness and the C304900500019 stopping power of the beam being randomly generated C304900500020 on a Gaussian distribution with their systematic C304900500021 uncertainty as the standard deviation. The standard C304900500022 deviation of the distributions of the fitted C304900500023 parameters resulting from 10 000 iterations was added C304900500024 quadratically to the statistical uncertainty of the C304900500025 original LSF resulting in the total fitting procedure C304900500026 uncertainty on those parameters. C304900500027 (ERR-SYS) Resonance strength systematic uncertainties. C304900500028 (ERR-1) MC procedure. C304900500029 (ERR-2) Branching ratio. C304900500030 (ERR-3) Detector efficiency. C304900500031 (ERR-4) Summing effect. C304900500032 (ERR-5) Charge collection. C304900500033 (ERR-6) Target degradation. C304900500034 CORRECTION Doppler shift corrected photopeak energies. C304900500035 STATUS (DEP,C3049003) C304900500036 (TABLE,,R.Fang,J,PR/C,110,025806,2024) Table II C304900500037 ENDBIB 35 0 C304900500038 COMMON 7 6 C304900500039 ERR-SYS ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 C304900500040 ERR-6 C304900500041 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C304900500042 PER-CENT C304900500043 11.7 9.3 3.5 4.6 0.6 3.0C304900500044 2.6 C304900500045 ENDCOMMON 6 0 C304900500046 DATA 4 1 C304900500047 DATA 1ERR-T 1DATA 2ERR-T 2 C304900500048 KEV KEV EV EV C304900500049 1479.4 0.6 4.20 0.49 C304900500050 ENDDATA 3 0 C304900500051 ENDSUBENT 50 0 C304900599999 ENDENTRY 5 0 C304999999999