ENTRY A0633 19990621 0000A063300000001 SUBENT A0633001 19990621 0000A063300100001 BIB 11 49 A063300100002 TITLE Thermonuclear Reaction Rates of 9-Be(P,GAMMA)10-B. A063300100003 AUTHOR (D.ZAHNOW,C.FNGULO,M.JUNKER,C.ROLFS,S.SCHMIDT, A063300100004 W.H.SCHULTE, E.SOMORJAI) A063300100005 INSTITUTE (2GERBOC) Institut Fuer Physik Mit Lonenstrahlen A063300100006 (2FR CSN) Csnsm, Orsay, France A063300100007 (2ITYITY) Lngs-Infn, Gran Sasso, Italy A063300100008 (3HUNDEB) Atomkl, Debrecen, Hungary A063300100009 REFERENCE (J,NP/A,589,95,1995) A063300100010 (W,ROLFS,19990611) E-Mail Regarding to "Reaction Yield"A063300100011 Explanation. A063300100012 FACILITY (CCW,2GERBOC) A063300100013 (DYNAM,2GERBOC) A063300100014 The 450 Kv Single-Stage Accelerator and the 4 Mv TandemA063300100015 Of the Dynamitron Tandem Laboratorium at the A063300100016 Ruhr-Universitat Bochum Provided Proton Beams at E = 75A063300100017 To 1800 KeV with Currents I = 200 Na (HIGH ENERGIES) ToA063300100018 29 Mu-A (LOW ENERGIES) At the Target (LIMITED BY THE A063300100019 REQUIREMENT OF TARGET STABILITY AND BY DEAD-TIME A063300100020 EFFECTS IN THE Y-RAY DETECTOR). The Energy CalibrationA063300100021 Of the Accelerators was Tested During the Course of theA063300100022 Experiments Using the Well-Known 19-F(P,A)16-O A063300100023 Resonances at E = 224.0, 340.5, and 872.1 KeV and is A063300100024 Known to a Precision of +/- 0.5 KeV. The Proton EnergyA063300100025 Spread of Both Accelerators was Found to be Below 1.0 A063300100026 KeV. A063300100027 METHOD (SITA) A063300100028 (EXTB) A063300100029 (GSPEC) A063300100030 DETECTOR (NAICR) 4-Pi Summing Crystal. A063300100031 The Capture Gamma-Rays were Observed Using a 12X12 InchA063300100032 Nai(TL) Crystal with a Central Bore Hole of 35 mm A063300100033 Diameter and a 0.5 mm Al Wall Thickness. A063300100034 ERR-ANALYS (EN-ERR) Uncertainty of Effective Beam Energy Within A063300100035 The Target. A063300100036 SAMPLE Two Solid Targets were Used. One Target was Produced A063300100037 By Evaporating About 6 Mu-G/Cm-Sq be-9 on a 0.5 mm A063300100038 Thick (CLEANED) Cu Backing. This Target was Used in A063300100039 All Measurements (I.E. EXCITATION FUNCTION AND A063300100040 ABSOLUTE CROSS SECTION), Due to Its Small Thickness ofA063300100041 1.1+/-0.2 KeV, Observed at the 1083 KeV Resonance in A063300100042 9 be(P,G)10-B. For the Measurement of Absolute CrossA063300100043 Sections, Another Target Consisting of a 10 A063300100044 Mu-G/Cm-Sq Thick be Layer on a 0.3 mm Thick (CLEANED)A063300100045 Ta Backing was Also Used, with an Observed Thickness ofA063300100046 5.1+/-0.5 KeV at the 1083 KeV Resonance. A063300100047 HISTORY (19990608C) By F.C. A063300100048 (19990611U) Last checking has been done. A063300100049 (19990621A) DATE is corrected A063300100050 ADD-RES Thermonuclear Reaction Rates are Given in Table 3. A063300100051 ENDBIB 49 0 A063300100052 NOCOMMON 0 0 A063300100053 ENDSUBENT 52 0 A063300199999 SUBENT A0633002 19990621 0000A063300200001 BIB 4 5 A063300200002 REACTION (4-BE-9(P,G)5-B-10,,SIG) A063300200003 REL-REF (A,,W.F.HORNYAK+,J,NP,50,424,1964) A063300200004 COMMENT - By Author - Cross Section is Weighted Average For TwoA063300200005 Targets of the Authors and the Date from Rel-Ref. A063300200006 ERR-ANALYS (ERR-T) The Error of Weighted Average. A063300200007 ENDBIB 5 0 A063300200008 NOCOMMON 0 0 A063300200009 DATA 4 1 A063300200010 EN EN-ERR DATA ERR-T A063300200011 KEV KEV MB MB A063300200012 975. 0.5 0.47 0.03 A063300200013 ENDDATA 3 0 A063300200014 ENDSUBENT 13 0 A063300299999 SUBENT A0633003 19990621 0000A063300300001 BIB 4 16 A063300300002 REACTION (4-BE-9(P,G)5-B-10,,SIG,,SFC) A063300300003 FLAG (1.) Standard Value. See A0632002. A063300300004 (2.) Reaction Yield (NOT S(E) FACTOR) Due to Narrow A063300300005 Width of the 1083-KeV Resonance. A063300300006 Explanation of Prof. C.Rolfs: A063300300007 COMMENT - By Author -In Table 1 the S Factor in the Energy A063300300008 Range 1080 KeV to 1090 KeV Corresponds not Really to anA063300300009 S Factor or Equivalently to a Cross Section Since Here A063300300010 For the Narrow Resonance One Should Fold the Cross A063300300011 Section with the Target Thickness, Which We have not A063300300012 Done. Thus, We Remark in the Footnote "Reaction Yield"A063300300013 To Warn the Reader not to Use the Corresponding Data AsA063300300014 Cross Section Data. A063300300015 ERR-ANALYS (ERR-S) Statistical Error Only. A063300300016 (ERR-1) Overall Error in the Absolute Values has to be A063300300017 Added For Statistical Error. A063300300018 ENDBIB 16 0 A063300300019 COMMON 2 3 A063300300020 EN-ERR ERR-1 A063300300021 KEV PER-CENT A063300300022 0.5 6. A063300300023 ENDCOMMON 3 0 A063300300024 DATA 4 58 A063300300025 EN DATA ERR-S FLAG A063300300026 KEV MB*MEV MB*MEV NO-DIM A063300300027 73.3 1.31 0.07 A063300300028 85.8 1.24 0.05 A063300300029 98.4 1.26 0.05 A063300300030 123.5 1.45 0.06 A063300300031 148.6 1.53 0.03 A063300300032 173.7 1.78 0.07 A063300300033 198.8 2.05 0.06 A063300300034 223.8 2.43 0.09 A063300300035 248.9 3.06 0.11 A063300300036 274. 3.56 0.12 A063300300037 299. 3.98 0.12 A063300300038 320.5 3.57 0.12 A063300300039 340.5 3.3 0.22 A063300300040 370.5 2.25 0.11 A063300300041 400.5 1.6 0.04 A063300300042 450.5 1.1 0.02 A063300300043 600. 0.84 0.03 A063300300044 625. 0.93 0.03 A063300300045 650. 0.92 0.03 A063300300046 700. 1.02 0.02 A063300300047 750. 1.27 0.03 A063300300048 800. 1.65 0.04 A063300300049 850. 2.63 0.05 A063300300050 900. 5.48 0.11 A063300300051 925. 8.55 0.08 A063300300052 950. 13.6 0.2 A063300300053 975. 23.1 0.2 1. A063300300054 1000. 22.4 0.2 A063300300055 1025. 14.4 0.2 A063300300056 1050. 8.37 0.15 A063300300057 1070. 6.82 0.25 A063300300058 1075. 6.74 0.17 A063300300059 1080. 12.6 0.2 2. A063300300060 1081. 17.3 0.3 2. A063300300061 1082. 28.7 0.4 2. A063300300062 1083. 40.5 0.4 2. A063300300063 1084. 36.9 0.5 2. A063300300064 1085. 28.9 0.4 2. A063300300065 1086. 16.1 0.3 2. A063300300066 1087. 11.3 0.2 2. A063300300067 1090. 6.56 0.11 2. A063300300068 1095. 4.96 0.11 A063300300069 1125. 3.28 0.06 A063300300070 1150. 2.68 0.04 A063300300071 1170. 2.32 0.05 A063300300072 1200. 2.02 0.06 A063300300073 1250. 1.95 0.08 A063300300074 1300. 1.48 0.08 A063300300075 1350. 1.37 0.07 A063300300076 1400. 1. 0.05 A063300300077 1450. 0.7 0.04 A063300300078 1500. 0.53 0.03 A063300300079 1550. 0.4 0.02 A063300300080 1600. 0.32 0.02 A063300300081 1650. 0.26 0.02 A063300300082 1700. 0.22 0.01 A063300300083 1750. 0.2 0.01 A063300300084 1800. 0.18 0.01 A063300300085 ENDDATA 60 0 A063300300086 ENDSUBENT 85 0 A063300399999 ENDENTRY 3 0 A063399999999