ENTRY A1445 20210625 A098A144500000001 SUBENT A1445001 20210625 A098A144500100001 BIB 11 29 A144500100002 TITLE Low-energy cross sections for 7Li(p,alpha)4He and A144500100003 6Li(p,alpha)3He A144500100004 AUTHOR (H.Spinka,T.Tombrello,H.Winkler) A144500100005 REFERENCE (J,NP/A,164,1,1971) A144500100006 INSTITUTE (1USACAL) A144500100007 FACILITY (VDGT,1USACAL) ONR-CIT tandem accelerator A144500100008 INC-SPECT Negative ion beams of 6Li and 7Li were obtained from A144500100009 the exchange canal of a negative helium ion source. A144500100010 Hydrogen gas was used in the duoplasmatron source to A144500100011 provide the ionizing beam. A144500100012 SAMPLE CH4. At a target pressure of 3.0 Torr, the gas A144500100013 consumption was about 251 of CH4, per hour (at STP), A144500100014 with over 98% of this flowing through the Roots pump. A144500100015 Lithium beams and a CH4 gas target at equivalent A144500100016 proton energies A144500100017 METHOD (PHD) A144500100018 DETECTOR Three movable counters and a fixed counter at 90 degr. A144500100019 were used in the experiment. A144500100020 Foils of thickness 0.9 and 3.4 mg/cm2 were used in the A144500100021 forward counter and 0.22 and 1.4 mg/cm2 in the backwardA144500100022 counter, for 6Li and 7Li, respectively. A144500100023 ERR-ANALYS (ERR-1) The error in the normalization data to the A144500100024 Rutherford scattering A144500100025 HISTORY (19800902C) Compilation produced by Arzamas RFNC-VNIIEFA144500100026 (19990220U)CNPD: corrected 4-dig. year and lower cases.A144500100027 (20190625A) SD: Major updated in BIB section. A144500100028 (20210625A) SD: Energy units modified according to A144500100029 inverse kinematics. Accuracy of digitized A144500100030 data presentation revised. A144500100031 ENDBIB 29 0 A144500100032 COMMON 1 3 A144500100033 ERR-1 A144500100034 PER-CENT A144500100035 8.0 A144500100036 ENDCOMMON 3 0 A144500100037 ENDSUBENT 36 0 A144500199999 SUBENT A1445002 20210625 A098A144500200001 BIB 7 28 A144500200002 REACTION ((1-H-1(3-LI-6,HE3)2-HE-4,,DA)= A144500200003 (3-LI-6(P,HE3)2-HE-4,,DA,A)) A144500200004 COMMENT After comparison with the A1513.005 data set A144500200005 (Ep=300 keV) and F0012.002 data sets (Ep=324 keV), A144500200006 the compiler believe '6Li(p,a)3He' in the Fig.4 A144500200007 caption is correct (i.e., REACTION SF7=A) but 'the A144500200008 angle of the 3He in the c.m. angle' should read 'the A144500200009 angle of the alpha in the c.m. angle' in the same A144500200010 caption. A144500200011 MONITOR (3-LI-6(6-C-12,EL)3-LI-6,,DA,,RTH) A144500200012 MISC-COL (MISC) 6Li energy A144500200013 Both energies (for H and Li) are given in the article. A144500200014 Equivalent proton bombarding energy as calculated from A144500200015 the lithium bombarding energy, the beam energy losses A144500200016 and the masses of Li and H. A144500200017 ERR-ANALYS (DATA-ERR) Uncertainty from graphic bars includes: A144500200018 * Changes in the stoichiometric ratio of carbon to A144500200019 hydrogen in the target gas due to dissociation A144500200020 by the beam; A144500200021 * uncertainty in angular position of the elastics A144500200022 counter; A144500200023 * uncertainty in energy of the beam in the target A144500200024 region; etc. A144500200025 (not included ERR-1) A144500200026 STATUS (CURVE) Fig 4 from Nucl.Phys.,A164(1971)1 A144500200027 HISTORY (20190625A) SD: PART-DET deleted. SF9=EXP deleted from A144500200028 REACTION code. ANG-ERR -> ANG-ERR-D. MONITOR, COMMENT A144500200029 added. MEV -> MEV/A at E col. A144500200030 ENDBIB 28 0 A144500200031 COMMON 1 3 A144500200032 ANG-ERR-D A144500200033 ADEG A144500200034 0.6 A144500200035 ENDCOMMON 3 0 A144500200036 DATA 5 32 A144500200037 EN ANG-CM DATA-CM DATA-ERR MISC A144500200038 MEV/A ADEG MB/SR MB/SR MEV A144500200039 0.151 24.7 0.680 0.046 0.907 A144500200040 0.151 27.7 0.629 0.005 0.907 A144500200041 0.151 28.7 0.650 0.046 0.907 A144500200042 0.151 34.1 0.728 0.036 0.907 A144500200043 0.151 34.7 0.661 0.031 0.907 A144500200044 0.151 40.6 0.652 0.051 0.907 A144500200045 0.151 53.4 0.715 0.036 0.907 A144500200046 0.151 65.3 0.758 0.047 0.907 A144500200047 0.151 78.6 0.791 0.052 0.907 A144500200048 0.151 93.1 0.768 0.036 0.907 A144500200049 0.151 107.9 0.806 0.051 0.907 A144500200050 0.151 121.3 0.788 0.052 0.907 A144500200051 0.151 135.7 0.832 0.021 0.907 A144500200052 0.151 138.8 0.770 0.041 0.907 A144500200053 0.151 142.7 0.771 0.041 0.907 A144500200054 0.151 146.7 0.782 0.026 0.907 A144500200055 0.151 149.7 0.772 0.031 0.907 A144500200056 0.151 150.6 0.813 0.005 0.907 A144500200057 0.151 153.7 0.757 0.041 0.907 A144500200058 0.151 158.6 0.753 0.041 0.907 A144500200059 0.317 44.7 2.809 0.115 0.907 A144500200060 0.317 58.4 3.171 0.115 1.903 A144500200061 0.317 73.0 3.635 0.128 1.903 A144500200062 0.317 81.8 3.843 0.102 1.903 A144500200063 0.317 86.2 3.946 0.102 1.903 A144500200064 0.317 96.0 4.205 0.128 1.903 A144500200065 0.317 112.2 4.416 0.102 1.903 A144500200066 0.317 128.2 4.269 0.153 1.903 A144500200067 0.317 146.8 4.723 0.102 1.903 A144500200068 0.317 153.8 4.713 0.076 1.903 A144500200069 0.317 159.7 4.741 0.102 1.903 A144500200070 0.317 164.8 4.577 0.115 1.903 A144500200071 ENDDATA 34 0 A144500200072 ENDSUBENT 71 0 A144500299999 SUBENT A1445003 20210625 A098A144500300001 BIB 7 19 A144500300002 REACTION ((1-H-1(3-LI-7,A)2-HE-4,,DA)=(3-LI-7(P,A)2-HE-4,,DA)) A144500300003 MONITOR (3-LI-7(6-C-12,EL)3-LI-7,,DA,,RTH) A144500300004 MISC-COL (MISC) 7Li energy A144500300005 COMMENT Both energies (for H and Li) are given in the article. A144500300006 Equivalent proton bombarding energy as calculated from A144500300007 the lithium bombarding energy, the beam energy losses A144500300008 and the masses of Li and H. A144500300009 ERR-ANALYS (DATA-ERR) Uncertainty from graphic bars includes: A144500300010 * Changes in the stoichiometric ratio of carbon to A144500300011 hydrogen in the target gas due to dissociation A144500300012 by the beam; A144500300013 * uncertainty in angular position of the elastics A144500300014 counter; A144500300015 * uncertainty in energy of the beam in the target A144500300016 region; etc. A144500300017 STATUS (CURVE) Fig 5 from Nucl.Phys.,A164(1971)1 A144500300018 HISTORY (20190625A) SD: PART-DET deleted. SF9=EXP deleted from A144500300019 REACTION code. ANG-ERR -> ANG-ERR-D. MONITOR added. A144500300020 MEV -> MEV/A at E col. MISC col. added. A144500300021 ENDBIB 19 0 A144500300022 COMMON 1 3 A144500300023 ANG-ERR-D A144500300024 ADEG A144500300025 0.5 A144500300026 ENDCOMMON 3 0 A144500300027 DATA 5 22 A144500300028 EN ANG-CM DATA-CM DATA-ERR MISC A144500300029 MEV/A ADEG MB/SR MB/SR MEV A144500300030 0.131 26.0 0.0258 0.0009 0.913 A144500300031 0.131 36.5 0.0254 0.0010 0.913 A144500300032 0.131 53.5 0.0240 0.0014 0.913 A144500300033 0.131 77.6 0.0269 0.0034 0.913 A144500300034 0.131 78.5 0.0249 0.0011 0.913 A144500300035 0.272 23.2 0.2497 0.0058 1.899 A144500300036 0.272 32.8 0.2231 0.0063 1.899 A144500300037 0.272 46.1 0.2046 0.0053 1.899 A144500300038 0.272 51.8 0.2018 0.0097 1.899 A144500300039 0.272 72.6 0.1940 0.0116 1.899 A144500300040 0.272 80.8 0.1698 0.0058 1.899 A144500300041 0.416 20.7 0.5882 0.0176 2.913 A144500300042 0.416 29.2 0.5103 0.0176 2.913 A144500300043 0.416 47.2 0.4250 0.0215 2.913 A144500300044 0.416 68.0 0.3729 0.0215 2.913 A144500300045 0.416 86.0 0.2661 0.0117 2.913 A144500300046 0.561 18.1 0.8489 0.0245 3.925 A144500300047 0.561 26.4 0.7656 0.0319 3.925 A144500300048 0.561 38.4 0.7707 0.0246 3.925 A144500300049 0.561 49.0 0.6777 0.0294 3.925 A144500300050 0.561 63.5 0.5405 0.0294 3.925 A144500300051 0.561 88.7 0.3740 0.0147 3.925 A144500300052 ENDDATA 24 0 A144500300053 ENDSUBENT 52 0 A144500399999 SUBENT A1445004 20210625 A098A144500400001 BIB 7 21 A144500400002 REACTION ((1-H-1(3-LI-6,HE3)2-HE-4,,SIG)= A144500400003 (3-LI-6(P,HE3)2-HE-4,,SIG)) A144500400004 ANALYSIS (INTAD) For 6Li+p the total cross sections were A144500400005 obtained by multiplying the measured points with A144500400006 2Pi*sin(theta). A smooth curve through these values A144500400007 was then numerically integrated. A144500400008 MISC-COL (MISC) 6Li energy A144500400009 COMMENT Both energies (for H and Li) are given in the article. A144500400010 Equivalent proton bombarding energy as calculated from A144500400011 the lithium bombarding energy, the beam energy losses A144500400012 and the masses of Li and H. A144500400013 ERR-ANALYS (ERR-T) The error contains effects from the error of A144500400014 individual points in the angular distribution, as well A144500400015 as from the quality of the fits and the uncertainties A144500400016 in the contributions of the regions near 0. and A144500400017 180.degr., not measured in this experiment. A144500400018 STATUS (TABLE) Table 1 Nucl.Phys.,A164(1971)1 A144500400019 (DEP,A1445002) Ang.distrib. A144500400020 HISTORY (20190625A) SD: SF9=EXP deleted from REACTION code. A144500400021 ANALYSIS added. BIB updated. MEV -> MEV/A at E col. A144500400022 MISC col. added. A144500400023 ENDBIB 21 0 A144500400024 NOCOMMON 0 0 A144500400025 DATA 5 2 A144500400026 EN EN-ERR DATA ERR-T MISC A144500400027 MEV/A MEV MB MB MEV A144500400028 0.151 0.0035 9.8 1.0 0.907 A144500400029 0.317 0.004 47. 5. 1.903 A144500400030 ENDDATA 4 0 A144500400031 ENDSUBENT 30 0 A144500499999 SUBENT A1445005 20210625 A098A144500500001 BIB 7 19 A144500500002 REACTION ((1-H-1(3-LI-7,A)2-HE-4,,SIG)=(3-LI-7(P,A)2-HE-4,,SIG))A144500500003 ANALYSIS (INTAD) The 7Li+p total cross sections were obtained A144500500004 by fitting the data with either 2 or 3 even order A144500500005 Legendre polynomials. A144500500006 MISC-COL (MISC) 7Li energy A144500500007 COMMENT Both energies (for H and Li) are given in the article. A144500500008 Equivalent proton bombarding energy as calculated from A144500500009 the lithium bombarding energy, the beam energy losses A144500500010 and the masses of Li and H. A144500500011 ERR-ANALYS (ERR-T) The error contains effects from the error of A144500500012 individual points in the angular distribution, as well A144500500013 as from the quality of the fits and the uncertainties A144500500014 in the contributions of the regions near 0. and A144500500015 180.degr., not measured in this experiment. A144500500016 STATUS (TABLE) Table 1 Nucl.Phys.,A164(1971)1 A144500500017 (DEP,A1445002) Ang.distrib. A144500500018 HISTORY (20190625A) SD: SF9=EXP deleted from REACTION code. A144500500019 ANALYSIS added. BIB updated. MEV -> MEV/A at E col. A144500500020 MISC col. added. A144500500021 ENDBIB 19 0 A144500500022 NOCOMMON 0 0 A144500500023 DATA 5 4 A144500500024 EN EN-ERR DATA ERR-T MISC A144500500025 MEV/A MEV MB MB MEV A144500500026 0.1305 0.0035 0.32 0.04 0.913 A144500500027 0.2715 0.0040 2.46 0.25 1.899 A144500500028 0.416 0.0035 4.9 0.5 2.913 A144500500029 0.561 0.0030 7.4 0.8 3.925 A144500500030 ENDDATA 6 0 A144500500031 ENDSUBENT 30 0 A144500599999 ENDENTRY 5 0 A144599999999