ENTRY B0076 20211221 B032B007600000001 SUBENT B0076001 20211221 B032B007600100001 BIB 7 17 B007600100002 TITLE Excitation functions to 100 MeV B007600100003 AUTHOR (N.M.Hintz, N.F.Ramsey) B007600100004 INSTITUTE (1USAHRV) Nuclear laboratory B007600100005 REFERENCE (J,PR,88,19,1952) B007600100006 (J,PR,83,185,1951) Preliminary results B007600100007 FACILITY (CYCLO,1USAHRV) B007600100008 Irradiations were performed with the internal scatteredB007600100009 beam with 180 degree focusing in the cyclotron B007600100010 magnetic field resulting in a better energy resolution.B007600100011 protons initially monochromatic at 100 MeV have a B007600100012 dispersion of 4 MeV at 20 MeV. B007600100013 STATUS (CPX) B007600100014 HISTORY (19770907C)LAPF B007600100015 (19940704A) Some corrections have been included by B007600100016 CAJAD B007600100017 (20011010U) Last checking has been done. B007600100018 (20211220A) VS. REACTION, ERR-ANALYS corrected in 003. B007600100019 ENDBIB 17 0 B007600100020 NOCOMMON 0 0 B007600100021 ENDSUBENT 20 0 B007600199999 SUBENT B0076002 20011220 0000B007600200001 BIB 11 44 B007600200002 REACTION (13-AL-27(P,X)11-NA-22,CUM,SIG,,,EXP) B007600200003 RAD-DET (11-NA-22,B+) B007600200004 DECAY-DATA (11-NA-22,2.6YR,B+) B007600200005 The Abundance is not Specified, But Since the Electron B007600200006 Capture Branch was Unknown in 1951 the Abundance B007600200007 Used was Obviously 1.0. Therefore the Values have to B007600200008 Be Multiplied by a Factor of 1.10 Corresponding to an B007600200009 Abundance of 0.9055 For B+ (COMMENT BY THE COMPILER B007600200010 OF KACHAPAG). B007600200011 SAMPLE Al-Foils, Thickness 127 Micrometer, Interspersed with B007600200012 Brass Absorbers. B007600200013 DETECTOR (GEMUC) B007600200014 METHOD (INTB,STTA,EDEG,MOMIX) B007600200015 The Energy at Each Target Foil was Calculated from the B007600200016 Energy of the Scattered and Refocused Beam Incident on B007600200017 The Stack (USING THE AVERAGE RADIUS OF THE SCATTERED B007600200018 BEAM AND THE CORRESPONDING MAGNETIC FIELD) By Means of B007600200019 The Range-Energy Curves Given by W.A.Aron Et Al., B007600200020 Ucrl-121. B007600200021 MONITOR (13-AL-27(P,X)11-NA-24-G,CUM,SIG,,,EXP) B007600200022 Na-24 was Used As Secondary Monitor After Calibration B007600200023 Of this Reaction by Means of C-12(P,N+P)C-11. B007600200024 MONIT-REF (B0076003,N.M.HINTZ+,J,PR,88,19,1952) B007600200025 COMMENT Cross Sections Below 20 MeV are Probably Due to B007600200026 Contamination. B007600200027 CORRECTION The Counting Rates were Corrected For Background, Dead B007600200028 Time Losses, Decay Since Zero Time, and Neutron InducedB007600200029 Activity,Which was Experimentally Shown to be in the B007600200030 Order of 2%. Further Corrections were Applied For B007600200031 Absorption and Scattering of the Beta-Rays Counted. B007600200032 The Loss of Protons by Nuclear Absorption in the B007600200033 Absorber/Target Assembly, Which Amounts to 10%, B007600200034 Was Corrected, While the Loss Due to Multiple Coulomb B007600200035 Scattering Could be Made Negligible by Using Brass B007600200036 Absorbers of a Diameter Greater Than the Target Foils. B007600200037 A Loss of Nuclei from the Target Foils Due to Recoil B007600200038 Or Evaporation During the Bombardment was Assumed to B007600200039 Be Negligible. B007600200040 ERR-ANALYS The Errors of the Cross Sections were Assumed to be B007600200041 Within 25%. They are Mainly Due to Uncertainties in B007600200042 The Corrections of the Beta-Ray Counting For AbsorptionB007600200043 And Scattering (ABOUT 20%), in the Correction For B007600200044 Proton Losses by Absorption in the Absorber/Target B007600200045 Assembly (<10%), and in the Monitor Reaction (<10%). B007600200046 ENDBIB 44 0 B007600200047 NOCOMMON 0 0 B007600200048 DATA 2 26 B007600200049 EN DATA B007600200050 MEV MB B007600200051 0.1 0.01 B007600200052 13.6 3.4 B007600200053 17.4 1.9 B007600200054 19.6 0.9 B007600200055 24.5 0.1 B007600200056 29.2 2.2 B007600200057 33.2 10.2 B007600200058 34. 20.9 B007600200059 37.1 28.3 B007600200060 40.3 40. B007600200061 40.8 42.2 B007600200062 46.7 46.9 B007600200063 51.4 38.6 B007600200064 51.6 39.9 B007600200065 56.3 34.1 B007600200066 57.1 33.4 B007600200067 60.7 29.9 B007600200068 65.2 29. B007600200069 65.9 30.2 B007600200070 73.2 28.5 B007600200071 81.4 27.2 B007600200072 88.6 27.4 B007600200073 95.4 26.9 B007600200074 102. 26.9 B007600200075 109. 27.6 B007600200076 115. 25.9 B007600200077 ENDDATA 28 0 B007600200078 ENDSUBENT 77 0 B007600299999 SUBENT B0076003 20211221 B032B007600300001 BIB 11 56 B007600300002 REACTION (13-AL-27(P,X)11-NA-24,CUM,SIG) B007600300003 DECAY-DATA (11-NA-24,15.HR,B-,,,DG) B007600300004 the abundances used are not specified. B007600300005 METHOD (INTB,STTA,EDEG,MOSEP) B007600300006 the energy at each target foil was calculated from B007600300007 the average radius and magnetic field for the scatteredB007600300008 protons together with range-energy curves given B007600300009 by W.A.Aron et al., UCRL-121. B007600300010 SAMPLE Al-foils, thickness 127 micrometer, interspersed with B007600300011 brass absorbers. B007600300012 DETECTOR (GEMUC).For beta-counting B007600300013 (COIN,NAICR,NAICR).For gamma-counting B007600300014 MONITOR (6-C-12(P,X)6-C-11,,SIG) B007600300015 MONIT-REF (B0076005,N.M.Hintz+,J,PR,88,19,1952) B007600300016 normalized at 32 and 110 MeV to the values of Aamodt. B007600300017 (B0077002,R.L.Aamodt+,J,PR,88,739,1952) B007600300018 (B0077003,R.L.Aamodt+,J,PR,88,739,1952) B007600300019 CORRECTION The counting rates were corrected for background, dead B007600300020 time losses, decay since zero time, and neutron inducedB007600300021 activity,which was experimentally shown to be in the B007600300022 order of 2%. Further corrections were applied for B007600300023 absorption and scattering of the beta-rays counted. B007600300024 The loss of protons by nuclear absorption in the B007600300025 absorber/target assembly, which amounts to 10%, B007600300026 was corrected, while the loss due to multiple coulomb B007600300027 scattering could be made negligible by using brass B007600300028 absorbers of a diameter greater than the target foils. B007600300029 a loss of nuclei from the target foils due to recoil B007600300030 or evaporation during the bombardment was assumed to B007600300031 be negligible. B007600300032 The data for the present reaction were cross-checked B007600300033 by measuring the ratio of Na-24/C-11 via coincidence B007600300034 measurements. Na-24 was measured via gamma-gamma B007600300035 coincidence, C-11 was measured via beta-gamma B007600300036 coincidence using a beta-crystal and a NAI-detector. B007600300037 When corrections of a few per cent were made for the B007600300038 gamma-sensitivity of the beta-crystal, the results B007600300039 agreed to within 3% with the data obtained by B007600300040 beta counting and corrected for absorption and B007600300041 scattering. B007600300042 COMMENT Cross sections below 25 MeV are probably due to not B007600300043 completely corrected neutron induced activity or B007600300044 contamination (comment by the compiler of KACHAPAG). B007600300045 ERR-ANALYS (ERR-T) The errors of the cross sections were assumed B007600300046 to be within 15%. They are mainly due to: B007600300047 (ERR-1,,10.) Uncertainties in the correction for B007600300048 proton losses by absorption in the absorber/target B007600300049 assembly (<10%), B007600300050 (ERR-2,,10.) Monitor reaction (<10%). B007600300051 The uncertainties due to the corrections of the B007600300052 beta-ray counting for absorption and scattering has B007600300053 probably been omitted due to the good agreement betweenB007600300054 the beta counting and the coincidence measurements, seeB007600300055 under correction. B007600300056 HISTORY (20211220A) VS. SF4: -G deleted. ERR-ANALYS corrected. B007600300057 COMMON added. RAD-DET deleted. B007600300058 ENDBIB 56 0 B007600300059 COMMON 1 3 B007600300060 ERR-T B007600300061 PER-CENT B007600300062 15. B007600300063 ENDCOMMON 3 0 B007600300064 DATA 2 37 B007600300065 EN DATA B007600300066 MEV MB B007600300067 13.4 0.1 B007600300068 19.6 0.1 B007600300069 29.8 0.3 B007600300070 33.6 0.6 B007600300071 35.4 1. B007600300072 37.3 1.3 B007600300073 40.2 2.1 B007600300074 42. 2.8 B007600300075 46. 4.9 B007600300076 47.4 5.7 B007600300077 48.5 6.2 B007600300078 51. 8.4 B007600300079 52.6 9.2 B007600300080 52.9 10. B007600300081 54.7 11. B007600300082 56.5 12.2 B007600300083 57.8 12.7 B007600300084 61.7 13.4 B007600300085 61.9 14.2 B007600300086 65.9 14.8 B007600300087 65.9 15.2 B007600300088 70.1 15.4 B007600300089 71. 15.8 B007600300090 73.3 15.5 B007600300091 74.3 15.9 B007600300092 77.6 15.8 B007600300093 83.6 15.4 B007600300094 85.1 15.7 B007600300095 88.6 15.5 B007600300096 94.4 15.4 B007600300097 96.6 15.2 B007600300098 101. 15.2 B007600300099 105. 15. B007600300100 110. 14.8 B007600300101 114. 14.6 B007600300102 116. 14. B007600300103 118. 13.8 B007600300104 ENDDATA 39 0 B007600300105 ENDSUBENT 104 0 B007600399999 SUBENT B0076004 20011220 0000B007600400001 BIB 11 45 B007600400002 REACTION (13-AL-27(P,X)9-F-18,CUM,SIG,,,EXP) B007600400003 RAD-DET (9-F-18,B+) B007600400004 DECAY-DATA (9-F-18,112.MIN,B+,,1.) B007600400005 The Values Given have to be Corrected For the K-CaptureB007600400006 Not Exactly Known in 1951 As Stated by the Authors. B007600400007 They have to be Multiplied by a Factor of 1.03 B007600400008 Corresponding to an Abundance of 0.969 For B+ (COMMENT B007600400009 BY THE COMPILER OF KACHAPAG). B007600400010 METHOD (INTB,STTA,EDEG,MOSEP) B007600400011 The Energy at Each Target Foil was Calculated from B007600400012 The Average Radius and Magnetic Field For the ScatteredB007600400013 Protons Together with Range-Energy Curves Given B007600400014 By W.A.Aron Et Al.,Ucrl-121. B007600400015 SAMPLE Al-Foils, Thickness 127 Micrometer, Interspersed with B007600400016 Brass Absorbers. B007600400017 DETECTOR (GEMUC) B007600400018 MONITOR (6-C-12(P,X)6-C-11,IND,SIG,,,EXP) B007600400019 MONIT-REF (B0076005,N.M.HINTZ+,J,PR,88,19,1952) B007600400020 Normalized at 32 and 110 MeV to the Values of Aamodt. B007600400021 (B0077002,R.L.AAMODT+,J,PR,88,739,1952) B007600400022 (B0077003,R.L.AAMODT+,J,PR,88,739,1952) B007600400023 CORRECTION The Counting Rates were Corrected For Background, Dead B007600400024 Time Losses, Decay Since Zero Time, and Neutron InducedB007600400025 Activity,Which was Experimentally Shown to be in the B007600400026 Order of 2%. Further Corrections were Applied For B007600400027 Absorption and Scattering of the Beta-Rays Counted. B007600400028 The Loss of Protons by Nuclear Absorption in the B007600400029 Absorber/Target Assembly, Which Amounts to 10%, was B007600400030 Corrected, While the Loss Due to Multiple Coulomb B007600400031 Scattering Could be Made Negligible by Using Brass B007600400032 Absorbers of a Diameter Greater Than the Target Foils. B007600400033 A Loss of Nuclei from the Target Foils Due to Recoil B007600400034 Was Assumed to be Negligible. A Loss of F-18 by B007600400035 Evaporation During the Irradiation was Experimentally B007600400036 Shown to Amount to 10%. This Correction has Been B007600400037 Included. B007600400038 ERR-ANALYS The Errors of the Cross Sections were Assumed to be B007600400039 Within 25%. They are Mainly Due to B007600400040 Uncertainties in the Corrections of the Beta-Ray B007600400041 Counting For Absorption and Scattering (ABOUT 20%), in B007600400042 The Correction For Proton Losses by Absorption in the B007600400043 Absorber/Target Assembly (<10%), and in the Monitor B007600400044 Reaction (<10%). B007600400045 REL-REF (C,B0022005,J.B.CUMMING,J,ARN,13,261,1963) B007600400046 Cumming has Used this Data in an Evaluation. B007600400047 ENDBIB 45 0 B007600400048 NOCOMMON 0 0 B007600400049 DATA 2 29 B007600400050 EN DATA B007600400051 MEV MB B007600400052 21.4 0. B007600400053 31.6 0.1 B007600400054 39.6 0.5 B007600400055 43.8 0.6 B007600400056 46.9 1.7 B007600400057 51.1 4. B007600400058 51.6 4.7 B007600400059 53.4 5.5 B007600400060 57. 7.3 B007600400061 57.6 7.7 B007600400062 60.7 8.8 B007600400063 62.8 8.7 B007600400064 65.2 8.9 B007600400065 67.6 8.8 B007600400066 68.6 8.6 B007600400067 69.8 8.3 B007600400068 73.4 7.9 B007600400069 75. 7.8 B007600400070 77.4 7.7 B007600400071 81.4 7.2 B007600400072 84.4 7.2 B007600400073 88.3 6.8 B007600400074 91.4 6.9 B007600400075 95. 7. B007600400076 98.3 7.1 B007600400077 102. 7. B007600400078 105. 7.2 B007600400079 112. 7.3 B007600400080 118. 7.3 B007600400081 ENDDATA 31 0 B007600400082 ENDSUBENT 81 0 B007600499999 SUBENT B0076005 20011220 0000B007600500001 BIB 12 51 B007600500002 REACTION (6-C-12(P,X)6-C-11,IND,SIG,,,EXP) B007600500003 RAD-DET (6-C-11,B+) B007600500004 DECAY-DATA (6-C-11,,B+) B007600500005 SAMPLE Foils of Polyethylene or Polystyrene, Thickness from B007600500006 76 to 127 Micrometer, Interspersed with Brass or B007600500007 Aluminium Absorbers. B007600500008 DETECTOR (GEMUC) B007600500009 METHOD (INTB,STTA,EDEG,MOMIX) B007600500010 The Energy at Each Target Foil was Calculated from B007600500011 The Average Radius and Magnetic Field For the ScatteredB007600500012 Protons Together with Range-Energy Curves Given B007600500013 By W.A.Aron Et Al.,Ucrl-121. B007600500014 MONITOR (6-C-12(P,X)6-C-11,IND,SIG,,,EXP) B007600500015 The Relative Cross Sections were Normalized to the B007600500016 Absolute Value of 89+-4 Mb at 32 MeV Measured by B007600500017 Aamodt. B007600500018 MONIT-REF (B0077002,R.L.AAMODT+,J,PR,88,739,1952) B007600500019 (B0077003,R.L.AAMODT+,J,PR,88,739,1952) B007600500020 FLAG (1.) Measured Using Brass Absorbers B007600500021 (2.) Measured Using Aluminium Absorbers B007600500022 CORRECTION The Counting Rates were Corrected For Background, Dead B007600500023 Time Losses, Decay Since Zero Time, and Neutron InducedB007600500024 Activity,Which was Experimentally Shown to be in the B007600500025 Order of 2%. Further Corrections were Applied For B007600500026 Absorption and Scattering of the Beta-Rays Counted. B007600500027 The Loss of Protons by Nuclear Absorption in the B007600500028 Absorber/Target Assembly, Which Amounts to 10%, was B007600500029 Corrected, While the Loss Due to Multiple Coulomb B007600500030 Scattering Could be Made Negligible by Using Brass B007600500031 Absorbers of a Diameter Greater Than the Target Foils. B007600500032 A Loss of Nuclei from the Target Foils Due to Recoil orB007600500033 Evaporation During the Bombardment was Assumed to be B007600500034 Negligible. B007600500035 ERR-ANALYS The Error of the Absolute Cross Sections from ThresholdB007600500036 To 100 MeV are Within 5 to 10%. No Details are Given. B007600500037 The Error of the Monitor Values Used For Normalization B007600500038 Do not Include the Uncertainty of the Beta-Standard B007600500039 Calibration (7.5%) As Stated by Aamodt, B007600500040 Phys.Rev.88,739,52, See Subentry B0077002. B007600500041 REL-REF (C,B0022002,J.B.CUMMING,J,ARN,13,261,1963) B007600500042 Cumming has Used this Data in an Evaluation. B007600500043 (C,B0101002,W.E.CRANDALL+,J,PR,101,329,1956) B007600500044 Crandall Showed Experimentally That the Arrangement of B007600500045 The Absorber Foils Directly in Front of the Target FoilB007600500046 Resulted in Secondary Protons and Neutrons Which B007600500047 Increased the Cross Sections Measured by Aamodt [See B007600500048 Under Monitor]. Using an Arrangement of the Absorbers B007600500049 Far Off the Target in Front of the Beam B007600500050 Collimator and an Additional Steering Magnet For B007600500051 Energy Selection Crandall Found the Absolute Values B007600500052 13% Lower Than Aamodt. B007600500053 ENDBIB 51 0 B007600500054 NOCOMMON 0 0 B007600500055 DATA 3 42 B007600500056 EN DATA FLAG B007600500057 MEV MB NO-DIM B007600500058 8.5 0.4 1. B007600500059 9.8 0.4 1. B007600500060 17.6 15. 1. B007600500061 17.6 10.7 1. B007600500062 19.5 8.8 1. B007600500063 23.2 41.6 1. B007600500064 23.2 46.2 1. B007600500065 24.3 53.4 2. B007600500066 27.5 72.1 1. B007600500067 27.5 70.3 1. B007600500068 29.1 84.8 2. B007600500069 31.4 87.8 1. B007600500070 31.5 84.6 1. B007600500071 36.6 94.7 2. B007600500072 39.4 98.2 1. B007600500073 39.4 99.6 1. B007600500074 42.2 94.9 2. B007600500075 46.1 100. 1. B007600500076 46.7 101. 1. B007600500077 48.2 94.7 2. B007600500078 53.4 94.8 1. B007600500079 53.6 97.8 1. B007600500080 57. 91.2 2. B007600500081 60. 91.2 1. B007600500082 61.6 91.8 1. B007600500083 67.5 86.6 1. B007600500084 67.5 87.6 1. B007600500085 69.8 85.9 2. B007600500086 74.1 82.7 1. B007600500087 74.1 83.8 1. B007600500088 79. 80.3 2. B007600500089 81.4 78.6 1. B007600500090 81.8 79.8 1. B007600500091 85.6 76.4 2. B007600500092 88.3 75. 1. B007600500093 88.3 76.2 1. B007600500094 92.2 73.2 2. B007600500095 94.9 71.8 1. B007600500096 95. 72.7 1. B007600500097 101. 68.6 1. B007600500098 101. 70.2 1. B007600500099 104. 69. 2. B007600500100 ENDDATA 44 0 B007600500101 ENDSUBENT 100 0 B007600599999 SUBENT B0076006 20011220 0000B007600600001 BIB 11 49 B007600600002 REACTION (16-S-34(P,N)17-CL-34-M,,SIG,,,EXP) B007600600003 RAD-DET (17-CL-34-M,B+) B007600600004 (17-CL-34-G,B+).Measured in Equilibrium with Cl-34-M B007600600005 DECAY-DATA (17-CL-34-M,32.5MIN,B+,,1.) B007600600006 According to the Half-Life of 32.5 Min Measured by the B007600600007 Authors the Cross Sections Given are Valid For Cl-34-M.B007600600008 Cl-34-G (1.5 SEC) Was Unknown When this Work was B007600600009 Published. The Beta Branches Given by L.Ruby Et Al., B007600600010 Phys.Rev.83,698(1951) And Cited by the Authors are B007600600011 Similar to Those Resulting For Cl-34-M in Equilibrium B007600600012 With Cl-34-G Using More Recent Decay Data, Provided B007600600013 That All Directly Formed Cl-34-G had Decayed CompletelyB007600600014 Before Starting the Measurement. The Authors Assume OneB007600600015 Beta-Ray Per Decay (COMMENT BY THE COMPILER OF B007600600016 KACHAPAG). B007600600017 METHOD (INTB,STTA,EDEG,MOSEP) B007600600018 SAMPLE Natural Sulfur. No Specification is Given. B007600600019 DETECTOR (GEMUC) B007600600020 MONITOR (6-C-12(P,X)6-C-11,IND,SIG,,,EXP) B007600600021 MONIT-REF (B0076005,N.M.HINTZ+,J,PR,88,19,1952) B007600600022 Normalized at 32 and 110 MeV to the Values of Aamodt. B007600600023 (B0077002,R.L.AAMODT+,J,PR,88,739,1952) B007600600024 (B0077003,R.L.AAMODT+,J,PR,88,739,1952) B007600600025 COMMENT According to the Authors Interfering Activities of B007600600026 P-32 and Si-31 were Eliminated by Counting the Samples B007600600027 Through Thick Absorbers. B007600600028 CORRECTION The Counting Rates were Corrected For Background, Dead B007600600029 Time Losses, Decay Since Zero Time, and Neutron InducedB007600600030 Activity,Which was Experimentally Shown to be in the B007600600031 Order of 2%. Further Corrections were Applied For B007600600032 Absorption and Scattering of the Beta-Rays Counted. B007600600033 The Loss of Protons by Nuclear Absorption in the B007600600034 Absorber/Target Assembly, Which Amounts to 10%, B007600600035 Was Corrected, While the Loss Due to Multiple Coulomb B007600600036 Scattering Could be Made Negligible by Using Brass B007600600037 Absorbers of a Diameter Greater Than the Target Foils. B007600600038 Since a Recoil Loss of Nuclei from the Target Foils is B007600600039 Assumed to be Negligible Due to the Small Momentum B007600600040 Transfer, There will be an Error of a Few Per Cent Due B007600600041 To Recoil Losses from the Monitor Foil. A Loss of Cl-34B007600600042 By Evaporation During the Irradiation was B007600600043 Experimentally Shown to Amount to 15%. This Correction B007600600044 Has Been Included. The Energy Dispersion of the B007600600045 Scattered Beam of 4 MeV at 20 MeV will Lower the Peak B007600600046 By About 15%. 'It is Unclear Whether this Correction B007600600047 Has Been Included'(COMMENT BY THE COMPILER OF KACHAPAG)B007600600048 ERR-ANALYS The Authors Assume an Error of 25% For the Cross B007600600049 Sections Due to Large Corrections to the Beta Counts B007600600050 For Using Thick Samples and Thick Absorbers. B007600600051 ENDBIB 49 0 B007600600052 NOCOMMON 0 0 B007600600053 DATA 2 28 B007600600054 EN DATA B007600600055 MEV MB B007600600056 0.1 5.3 B007600600057 8.9 7.3 B007600600058 12.5 65. B007600600059 13.8 57.8 B007600600060 14.5 49.5 B007600600061 19.2 39.1 B007600600062 21.6 36.8 B007600600063 22.9 22.8 B007600600064 26.3 17.1 B007600600065 26.6 13.9 B007600600066 27.5 15.1 B007600600067 29.1 13.7 B007600600068 31.9 10.6 B007600600069 34.6 8.9 B007600600070 41. 7.6 B007600600071 41. 6.1 B007600600072 46.3 5.8 B007600600073 47.6 5.2 B007600600074 53. 5.2 B007600600075 60.6 5.5 B007600600076 63.2 4.7 B007600600077 71.5 4.6 B007600600078 72.7 4.5 B007600600079 83.7 3.7 B007600600080 85. 3.1 B007600600081 91.6 2.6 B007600600082 93.3 3.8 B007600600083 94.5 3.2 B007600600084 ENDDATA 30 0 B007600600085 ENDSUBENT 84 0 B007600699999 SUBENT B0076007 20011220 0000B007600700001 BIB 11 51 B007600700002 REACTION (5-B-11(P,N)6-C-11,,SIG,,,EXP) B007600700003 RAD-DET (6-C-11,B+) B007600700004 DECAY-DATA (6-C-11,,B+) B007600700005 METHOD (INTB,STTA,EDEG,MOSEP) B007600700006 The Energy at Each Target Foil was Calculated from B007600700007 The Average Radius and Magnetic Field For the ScatteredB007600700008 Protons Together with Range-Energy Curves Given B007600700009 By W.A.Aron Et Al.,Ucrl-121. B007600700010 SAMPLE Encapsulated Powder of Natural Boron, Thickness not B007600700011 Specified. Each Sample was Monitored Separately. B007600700012 DETECTOR (GEMUC) B007600700013 MONITOR (6-C-12(P,X)6-C-11,IND,SIG,,,EXP) B007600700014 MONIT-REF (B0076005,N.M.HINTZ+,J,PR,88,19,1952) B007600700015 Normalized at 32 and 110 MeV to the Values of Aamodt. B007600700016 (B0077002,R.L.AAMODT+,J,PR,88,739,1952) B007600700017 (B0077003,R.L.AAMODT+,J,PR,88,739,1952) B007600700018 COMMENT Incident Proton Energies were 100 and 60 MeV. Lower B007600700019 Energies were Achieved by Adding Absorber Foils. B007600700020 A Contribution from B-10(P,GAMMA)B-11 Should be B007600700021 Negligible. B007600700022 CORRECTION The Counting Rates were Corrected For Background, Dead B007600700023 Time Losses, Decay Since Zero Time, and Neutron InducedB007600700024 Activity,Which was Experimentally Shown to be in the B007600700025 Order of 2%. Further Corrections were Applied For B007600700026 Absorption and Scattering of the Beta-Rays Counted. B007600700027 The Loss of Protons by Nuclear Absorption in the B007600700028 Absorber/Target Assembly, Which Amounts to 10%, was B007600700029 Corrected, While the Loss Due to Multiple Coulomb B007600700030 Scattering Could be Made Negligible by Using Brass B007600700031 Absorbers of a Diameter Greater Than the Target Foils. B007600700032 Since a Recoil Loss of Nuclei from the Target Foils is B007600700033 Assumed to be Negligible Due to the Small Momentum B007600700034 Transfer, There will be an Error of a Few Per Cent Due B007600700035 To Recoil Losses from the Monitor Foil. The Energy B007600700036 Dispersion of the Scattered Beam of 4 MeV at 20 MeV B007600700037 Will Lower the Peak by About 15%. 'It is Unclear B007600700038 Whether this Correction has Been Included' -Comment by B007600700039 The Compiler of Kachapag. B007600700040 ERR-ANALYS The Errors of the Cross Sections were Assumed to be B007600700041 Within 15%. They are Smaller Than For the Other B007600700042 Reactions, Since the Corrections of the Beta-Ray B007600700043 Counting For Absorption and Scattering are B007600700044 Approximately Equal Measuring the Same Nuclide For the B007600700045 Reaction and For the Monitor and Due to Equal ThicknessB007600700046 For Target and Monitor Samples Resulting in a B007600700047 Cancellation of the Uncertainties of these Corrections.B007600700048 Thus the Errors are Mainly Due to the Uncertainties in B007600700049 The Correction For Proton Losses by Absorption in the B007600700050 Absorber/Target Assembly (<10%), and in the Monitor B007600700051 Reaction (<10%). Cross Sections Below 10 MeV are More B007600700052 Uncertain Due to the Energy Straggling. B007600700053 ENDBIB 51 0 B007600700054 NOCOMMON 0 0 B007600700055 DATA 2 31 B007600700056 EN DATA B007600700057 MEV MB B007600700058 0.2 2.5 B007600700059 2.3 43.7 B007600700060 6.4 68.9 B007600700061 6.4 82.4 B007600700062 8.9 101. B007600700063 11. 95.6 B007600700064 12.9 89.4 B007600700065 14.9 78.5 B007600700066 16.3 70.3 B007600700067 19.5 53.6 B007600700068 21.8 45.2 B007600700069 24.9 43.4 B007600700070 29.9 31.4 B007600700071 30. 36.5 B007600700072 31.9 30.8 B007600700073 33.2 31. B007600700074 33.7 29.2 B007600700075 36.5 28.2 B007600700076 43.4 22.1 B007600700077 44.3 19.2 B007600700078 46.1 20.5 B007600700079 46.6 22.3 B007600700080 52.2 18.2 B007600700081 55.1 15.3 B007600700082 63.5 13.7 B007600700083 67.2 12.7 B007600700084 72.5 11.6 B007600700085 78.8 10.6 B007600700086 88.4 9.2 B007600700087 90.1 9.5 B007600700088 98.6 8.9 B007600700089 ENDDATA 33 0 B007600700090 ENDSUBENT 89 0 B007600799999 ENDENTRY 7 0 B007699999999