ENTRY B0127 20011220 0000B012700000001 SUBENT B0127001 20011220 0000B012700100001 BIB 6 14 B012700100002 TITLE Activation and Angular Distribution Measurements B012700100003 Of Li-7(P,N)Be-7 (0.0+0.429 MEV) For E(P)=25-45 MeV. B012700100004 A Technique For Absolute Neutron Yield Determination. B012700100005 AUTHOR (S.SCHERY, L.YOUNG, R.DOERING, S.AUSTIN, R.BHOWMIK) B012700100006 INSTITUTE (1USAMHG) B012700100007 REFERENCE (J,NIM,147,399,1977) B012700100008 FACILITY (CYCLO,1USAMHG) B012700100009 HISTORY (19800325C)Nekw B012700100010 (19940718A) Some Corrections have Been Included by B012700100011 CAJAD B012700100012 (19981108A)Converted to Lower Case. Angular B012700100013 Distributions B012700100014 Of Neutrons are Added. See B0127003 and 004. B012700100015 (20011010U) Last checking has been done. B012700100016 ENDBIB 14 0 B012700100017 NOCOMMON 0 0 B012700100018 ENDSUBENT 17 0 B012700199999 SUBENT B0127002 20011220 0000B012700200001 BIB 8 37 B012700200002 REACTION (3-LI-7(P,N)4-BE-7,,SIG,,,EXP) B012700200003 The Given Cross Section For the Production of be-7 B012700200004 Results Exclusively from Reactions to the Ground B012700200005 State Plus First Excited State (0.429 MEV), Because B012700200006 These are the Only Particle-Emission-Stable States B012700200007 Of be-7. B012700200008 METHOD (EXTB,SITA,STTA,BCINT,EDEG) B012700200009 Li-7 Targets were Activated Both Singly and in B012700200010 Multiple-Target Stacks. In the Latter Case the Mean B012700200011 Proton Energy was Determined by Observing the Neutron B012700200012 Time-Of-Flight Spectrum at 0 Degrees. Beam Currents B012700200013 And Current Densities were As Low As 20 Nanoampere B012700200014 And 250 Nanoampere/Cm**2 Respectively to Minimize B012700200015 Target Heating. Aluminium Foils 8 Mg/Cm**2 Thick were B012700200016 Placed After Each Target to Stop any be-7 Nuclei B012700200017 Recoiling from the Target. The Targets were Mounted B012700200018 In the Bottom of a Faraday-Cup of 1.3 Cm Diameter and B012700200019 2.0 Cm Depth. B012700200020 SAMPLE Li-7 Targets, Enrichment 99.99%, Thickness 20-60 B012700200021 Mg/Cm**2, Pressed Li-Metal. B012700200022 DETECTOR (GELI) B012700200023 RAD-DET (4-BE-7,DG) B012700200024 DECAY-DATA (4-BE-7,53.4D,DG,478.,0.104) B012700200025 ERR-ANALYS (ERR-T) The Total Error For the Given Cross Sections B012700200026 Is +-3.6%. The Relative Error For Each Point is +-2%, B012700200027 Resulting from the Error in Counting Statistics, B012700200028 Uncertainties in Beam Energy and Solid Angle of Gamma B012700200029 Counting, Change in Beam Flux Due to Reactions in the B012700200030 Target Stack and Random Variations in Target B012700200031 Thicknesses. An Additional Systematic Error of +-3% is B012700200032 Due to the Efficiency Calibration of the Ge(LI) B012700200033 Detector, Target Thickness (1%), and the Assumed ShapesB012700200034 Of the Gamma Peak and Background. B012700200035 (EN-ERR) Any Information For Uncertainty of Beam EnergyB012700200036 Is Absent For Original Compilation of Kachapag. B012700200037 /Comment by CAJAD/ B012700200038 STATUS (TABLE) Table 2 of the Paper. B012700200039 ENDBIB 37 0 B012700200040 COMMON 1 3 B012700200041 ERR-T B012700200042 PER-CENT B012700200043 3.6 B012700200044 ENDCOMMON 3 0 B012700200045 DATA 3 11 B012700200046 EN EN-ERR DATA B012700200047 MEV MEV MB B012700200048 24.7 0.2 29.19 B012700200049 27.3 0.2 26.06 B012700200050 29.4 0.2 24.03 B012700200051 29.9 0.2 24.12 B012700200052 31.9 0.2 22.48 B012700200053 34.5 0.2 20.84 B012700200054 34.9 0.1 20.53 B012700200055 36.6 0.2 19.46 B012700200056 39.5 0.2 18.03 B012700200057 40.7 0.1 17.43 B012700200058 44.7 0.1 16.44 B012700200059 ENDDATA 13 0 B012700200060 ENDSUBENT 59 0 B012700299999 SUBENT B0127003 20011220 0000B012700300001 BIB 7 22 B012700300002 REACTION (3-LI-7(P,N)4-BE-7,,DA,,,EXP) B012700300003 PART-DET (N) B012700300004 COMMENT - By Compiler - The Given Cross Section For the B012700300005 Production of be-7 Results Exclusively from Reactions B012700300006 To the Ground State Plus First Excited State (0.429 B012700300007 MEV), Because these are the Only B012700300008 Particle-Emission-Stable States of be-7. B012700300009 METHOD (TOF) Flight Paths of 4-5 Meters. B012700300010 (PSD) To Eliminate Events Caused by Gamma Rays and B012700300011 Alpha-Particles. B012700300012 DETECTOR (SCIN) Thick Glass-Encapsulated Scintillation Detector B012700300013 Containing Ne213 Liduid Scintillator. B012700300014 ERR-ANALYS (ERR-1) Relative Error B012700300015 (ERR-2) Normalization Error. B012700300016 STATUS (DEP,B0127002) B012700300017 The Total Cross Section For the Li-7(P,N)Be-7 ReactionB012700300018 Was Used For Absolute Normalization of Angular B012700300019 Distributions. By Observing the Produced be-7, B012700300020 Absolute Neutron Fluence from the Reaction Li-7(P,N) B012700300021 Can be Determined Independent of Beam Current and B012700300022 Target Thickness Measurements. B012700300023 (TABLE) Table 1 of Paper. B012700300024 ENDBIB 22 0 B012700300025 COMMON 1 3 B012700300026 ERR-2 B012700300027 PER-CENT B012700300028 3.6 B012700300029 ENDCOMMON 3 0 B012700300030 DATA 4 71 B012700300031 EN ANG DATA ERR-1 B012700300032 MEV ADEG MB/SR PER-CENT B012700300033 24.8 0. 25.4 4.9 B012700300034 24.8 10. 19.2 3.9 B012700300035 24.8 15. 14.2 3.8 B012700300036 24.8 20. 9.47 3.5 B012700300037 24.8 25. 6.74 2.9 B012700300038 24.8 30. 5.29 2.3 B012700300039 24.8 35. 4.82 2. B012700300040 24.8 40. 4.85 5.5 B012700300041 24.8 45. 4.64 1.4 B012700300042 24.8 50. 4.45 1.4 B012700300043 24.8 55. 4. 1.7 B012700300044 24.8 60. 3.31 5.4 B012700300045 24.8 65. 2.73 5.5 B012700300046 24.8 70. 2.03 5.6 B012700300047 24.8 75. 1.6 5.7 B012700300048 24.8 80. 1.27 5.9 B012700300049 24.8 85. 1.06 6. B012700300050 24.8 90. 1.02 6. B012700300051 24.8 95. 1. 6.1 B012700300052 24.8 100. 1.01 6.3 B012700300053 24.8 110. 0.939 6.8 B012700300054 24.8 120. 0.802 7.4 B012700300055 24.8 130. 0.49 8. B012700300056 24.8 140. 0.391 8.5 B012700300057 24.8 150. 0.382 9.1 B012700300058 35. 0. 29.1 2.9 B012700300059 35. 10. 25. 2.7 B012700300060 35. 15. 17.2 2.7 B012700300061 35. 20. 11.5 2.7 B012700300062 35. 25. 7.6 2.7 B012700300063 35. 30. 5.25 2.6 B012700300064 35. 35. 3.83 1.7 B012700300065 35. 40. 3.31 1.9 B012700300066 35. 45. 2.84 1.8 B012700300067 35. 50. 2.56 2.9 B012700300068 35. 55. 2. 2.1 B012700300069 35. 60. 1.55 2.4 B012700300070 35. 65. 1.1 2.4 B012700300071 35. 70. 0.862 2.7 B012700300072 35. 75. 0.653 2.9 B012700300073 35. 80. 0.486 2.9 B012700300074 35. 85. 0.413 3. B012700300075 35. 90. 0.33 3.3 B012700300076 35. 95. 0.269 3.5 B012700300077 35. 100. 0.233 3.8 B012700300078 35. 110. 0.174 4. B012700300079 35. 120. 0.125 4.6 B012700300080 35. 130. 0.0856 4.8 B012700300081 35. 140. 0.0738 5.3 B012700300082 35. 150. 0.0925 5.6 B012700300083 45. 0. 31.6 3. B012700300084 45. 10. 24.6 2.7 B012700300085 45. 15. 17. 2.9 B012700300086 45. 20. 10.7 3. B012700300087 45. 25. 6.47 2.8 B012700300088 45. 30. 4.42 2.2 B012700300089 45. 35. 3.27 2.8 B012700300090 45. 40. 2.48 2.6 B012700300091 45. 45. 1.98 2.4 B012700300092 45. 50. 1.51 4.5 B012700300093 45. 55. 1.22 3.1 B012700300094 45. 60. 0.829 3. B012700300095 45. 65. 0.531 5.8 B012700300096 45. 70. 0.414 6. B012700300097 45. 80. 0.192 6.2 B012700300098 45. 90. 0.122 6.4 B012700300099 45. 100. 0.0727 7.7 B012700300100 45. 110. 0.0405 8.7 B012700300101 45. 120. 0.0358 9.9 B012700300102 45. 140. 0.0266 8.3 B012700300103 45. 150. 0.0327 9.2 B012700300104 ENDDATA 73 0 B012700300105 ENDSUBENT 104 0 B012700399999 SUBENT B0127004 20011220 0000B012700400001 BIB 8 13 B012700400002 REACTION (3-LI-7(P,N)4-BE-7,PAR,DA,,,EXP) B012700400003 EN-SEC (E-LVL,4-BE-7) B012700400004 PART-DET (N) B012700400005 METHOD (TOF) Flight Paths of 4-5 Meters. B012700400006 (PSD) To Eliminate Events Caused by Gamma Rays and B012700400007 Alpha-Particles. B012700400008 DETECTOR (SCIN) Thick Glass-Encapsulated Scintillation Detector B012700400009 Containing Ne213 Liduid Scintillator. B012700400010 ERR-ANALYS (ERR-T) The Uncertainty is Shown on Figure. B012700400011 (DATA-ERR) Data-Point Reader Uncertainty. B012700400012 STATUS (CURVE) By CAJAD. B012700400013 COMMENT - By Authors - The Data are Taken from Unpublished B012700400014 Paper of R.R. Doering Et Al. B012700400015 ENDBIB 13 0 B012700400016 COMMON 1 3 B012700400017 DATA-ERR B012700400018 PER-CENT B012700400019 3. B012700400020 ENDCOMMON 3 0 B012700400021 DATA 5 140 B012700400022 EN ANG E-LVL DATA ERR-T B012700400023 MEV ADEG MEV MB/SR PER-CENT B012700400024 24.8 0. 0. 17.5 2.9 B012700400025 24.8 0. 0.429 5.33 2.8 B012700400026 24.8 10. 0. 13.8 2.9 B012700400027 24.8 10. 0.429 3.8 2.9 B012700400028 24.8 15. 0. 9.62 2.8 B012700400029 24.8 15. 0.429 2.87 2.8 B012700400030 24.8 20. 0. 6.6 2.7 B012700400031 24.8 20. 0.429 1.97 3. B012700400032 24.8 25. 0. 4.45 2.7 B012700400033 24.8 25. 0.429 1.73 2.9 B012700400034 24.8 30. 0. 3.48 2.9 B012700400035 24.8 30. 0.429 1.38 2.9 B012700400036 24.8 35. 0. 3.05 3. B012700400037 24.8 35. 0.429 1.41 2.8 B012700400038 24.8 40. 0. 3.24 2.8 B012700400039 24.8 40. 0.429 1.36 2.9 B012700400040 24.8 45. 0. 3.01 2.7 B012700400041 24.8 45. 0.429 1.28 3. B012700400042 24.8 50. 0. 3.01 2.7 B012700400043 24.8 50. 0.429 1.15 2.6 B012700400044 24.8 55. 0. 2.75 2.9 B012700400045 24.8 55. 0.429 0.989 2.8 B012700400046 24.8 60. 0. 2.32 2.6 B012700400047 24.8 60. 0.429 0.868 2.8 B012700400048 24.8 65. 0. 1.96 2.6 B012700400049 24.8 65. 0.429 0.667 2.8 B012700400050 24.8 70. 0. 1.51 2.6 B012700400051 24.8 70. 0.429 0.513 5. B012700400052 24.8 75. 0. 1.2 3. B012700400053 24.8 75. 0.429 0.379 5. B012700400054 24.8 80. 0. 0.92 5. B012700400055 24.8 80. 0.429 0.339 4. B012700400056 24.8 85. 0. 0.781 2.9 B012700400057 24.8 85. 0.429 0.271 5. B012700400058 24.8 90. 0. 0.725 2.8 B012700400059 24.8 90. 0.429 0.251 5. B012700400060 24.8 95. 0. 0.71 7. B012700400061 24.8 95. 0.429 0.267 5. B012700400062 24.8 100. 0. 0.73 4. B012700400063 24.8 100. 0.429 0.257 5. B012700400064 24.8 110. 0. 0.68 6. B012700400065 24.8 110. 0.429 0.263 6. B012700400066 24.8 120. 0. 0.57 5. B012700400067 24.8 120. 0.429 0.214 6. B012700400068 24.8 130. 0. 0.372 5. B012700400069 24.8 130. 0.429 0.107 7. B012700400070 24.8 140. 0. 0.309 8. B012700400071 24.8 140. 0.429 0.076 14. B012700400072 24.8 150. 0. 0.299 7. B012700400073 24.8 150. 0.429 0.067 9. B012700400074 35. 0. 0. 20.9 2.9 B012700400075 35. 0. 0.429 7.81 2.8 B012700400076 35. 10. 0. 17.6 2.8 B012700400077 35. 10. 0.429 6.98 2.9 B012700400078 35. 15. 0. 12.7 3. B012700400079 35. 15. 0.429 4.91 2.9 B012700400080 35. 20. 0. 8.06 2.9 B012700400081 35. 20. 0.429 3.59 2.8 B012700400082 35. 25. 0. 5.14 2.7 B012700400083 35. 25. 0.429 2.43 2.9 B012700400084 35. 30. 0. 3.47 2.9 B012700400085 35. 30. 0.429 1.78 2.8 B012700400086 35. 35. 0. 2.59 2.7 B012700400087 35. 35. 0.429 1.18 2.5 B012700400088 35. 40. 0. 2.31 2.6 B012700400089 35. 40. 0.429 0.989 2.8 B012700400090 35. 45. 0. 1.94 2.6 B012700400091 35. 45. 0.429 0.768 2.9 B012700400092 35. 50. 0. 1.91 2.6 B012700400093 35. 50. 0.429 0.698 2.9 B012700400094 35. 55. 0. 1.45 2.8 B012700400095 35. 55. 0.429 0.51 2.7 B012700400096 35. 60. 0. 1.13 2.7 B012700400097 35. 60. 0.429 0.404 2.7 B012700400098 35. 65. 0. 0.792 2.8 B012700400099 35. 65. 0.429 0.301 2.7 B012700400100 35. 70. 0. 0.615 2.8 B012700400101 35. 70. 0.429 0.239 2.9 B012700400102 35. 75. 0. 0.459 2.8 B012700400103 35. 75. 0.429 0.182 2.7 B012700400104 35. 80. 0. 0.356 2.8 B012700400105 35. 80. 0.429 0.118 2.5 B012700400106 35. 85. 0. 0.293 2.7 B012700400107 35. 85. 0.429 0.112 2.7 B012700400108 35. 90. 0. 0.228 2.6 B012700400109 35. 90. 0.429 0.0938 2.8 B012700400110 35. 95. 0. 0.191 2.6 B012700400111 35. 95. 0.429 0.076 5. B012700400112 35. 100. 0. 0.161 2.5 B012700400113 35. 100. 0.429 0.0648 3. B012700400114 35. 110. 0. 0.123 2.4 B012700400115 35. 110. 0.429 0.0485 6. B012700400116 35. 120. 0. 0.09 2.8 B012700400117 35. 120. 0.429 0.0322 2.8 B012700400118 35. 130. 0. 0.0673 2.8 B012700400119 35. 130. 0.429 0.0176 2.8 B012700400120 35. 140. 0. 0.064 8. B012700400121 35. 140. 0.429 0.0092 11. B012700400122 35. 150. 0. 0.074 5. B012700400123 35. 150. 0.429 0.0165 9. B012700400124 45. 0. 0. 21. 2.4 B012700400125 45. 0. 0.429 10.3 2.5 B012700400126 45. 10. 0. 16.5 2.4 B012700400127 45. 10. 0.429 7.65 2.6 B012700400128 45. 15. 0. 11.34 2.6 B012700400129 45. 15. 0.429 5.58 2.5 B012700400130 45. 20. 0. 6.85 2.6 B012700400131 45. 20. 0.429 3.77 2.7 B012700400132 45. 25. 0. 4.14 2.7 B012700400133 45. 25. 0.429 2.55 2.7 B012700400134 45. 30. 0. 2.91 2.4 B012700400135 45. 30. 0.429 1.6 2.5 B012700400136 45. 35. 0. 2.28 2.6 B012700400137 45. 35. 0.429 1.19 2.5 B012700400138 45. 40. 0. 1.89 2.6 B012700400139 45. 40. 0.429 0.691 2.6 B012700400140 45. 45. 0. 1.52 2.6 B012700400141 45. 45. 0.429 0.532 2.6 B012700400142 45. 50. 0. 1.21 2.5 B012700400143 45. 50. 0.429 0.388 2.6 B012700400144 45. 55. 0. 0.988 2.5 B012700400145 45. 55. 0.429 0.31 2.6 B012700400146 45. 60. 0. 0.643 2.8 B012700400147 45. 60. 0.429 0.222 2.7 B012700400148 45. 65. 0. 0.396 4. B012700400149 45. 65. 0.429 0.153 2.6 B012700400150 45. 70. 0. 0.3 7. B012700400151 45. 70. 0.429 0.132 4. B012700400152 45. 80. 0. 0.142 5. B012700400153 45. 80. 0.429 0.065 8. B012700400154 45. 90. 0. 0.0926 3. B012700400155 45. 90. 0.429 0.037 11. B012700400156 45. 100. 0. 0.057 9. B012700400157 45. 100. 0.429 0.0208 13. B012700400158 45. 110. 0. 0.0292 10. B012700400159 45. 110. 0.429 0.0149 11. B012700400160 45. 120. 0. 0.0309 9. B012700400161 45. 120. 0.429 0.0084 15. B012700400162 45. 140. 0. 0.0248 10. B012700400163 45. 140. 0.429 0.0039 21. B012700400164 ENDDATA 142 0 B012700400165 ENDSUBENT 164 0 B012700499999 ENDENTRY 4 0 B012799999999