ENTRY C2346 20180703 C178C234600000001 SUBENT C2346001 20180703 C178C234600100001 BIB 8 30 C234600100002 TITLE Alpha-spallation cross sections at 920 MeV (230 C234600100003 MeV/N) in 27Al, 16O, 12C, and 9Be, and application to C234600100004 cosmic-ray transport C234600100005 AUTHOR (J.R.Radin,A.R.Smith,N.Little) C234600100006 REFERENCE (J,PR/C,9,1718,1974) C234600100007 #doi:10.1103/PhysRevC.9.1718 C234600100008 INSTITUTE (3ISLTEL) Tel-Aviv University, Department of Physics C234600100009 & Astronomy, Ramat Aviv, Israel C234600100010 (1USABRK) C234600100011 FACILITY (CYCLO,1USABRK) The 184-in. cyclotron at Lawrence C234600100012 Berkeley Laboratory. C234600100013 DETECTOR (NAICR) The detection system consisted of a 20.4-cm C234600100014 diam x 10.2-cm-thick NaI(Tl) crystal. C234600100015 ERR-ANALYS (ERR-T) Random and systematic errors in the article C234600100016 are all systematic in nature. The random errors were: C234600100017 Initial decay rate of the isotopes produced, time at C234600100018 end of exposure (+-1 sec), background in the interval C234600100019 examined (81+-1 counts/min), uncertainty in the monitorC234600100020 cross sections. The random and systematic errors, C234600100021 where apropos, were separately rms combined and then C234600100022 added to give the error estimates. C234600100023 (ERR-1) target alignment. C234600100024 (ERR-2) diffusion loss of 11C in the polystyrene. C234600100025 (ERR-3) relative efficiency of the NaI(Tl) crystal for C234600100026 a 478-keV gamma ray. C234600100027 (ERR-4) annihilation-gamma sum peak. C234600100028 (ERR-5) annihilation-gamma absorption in the target C234600100029 holder. C234600100030 (ERR-6) contamination in the BeO. C234600100031 HISTORY (20180703C) BP C234600100032 ENDBIB 30 0 C234600100033 COMMON 7 6 C234600100034 EN ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 C234600100035 ERR-6 C234600100036 MEV PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C234600100037 PER-CENT C234600100038 920.0 1.0 0.4 1.0 0.2 2.0C234600100039 1.0 C234600100040 ENDCOMMON 6 0 C234600100041 ENDSUBENT 40 0 C234600199999 SUBENT C2346002 20180703 C178C234600200001 BIB 7 12 C234600200002 REACTION 1((13-AL-27(A,X)9-F-18,CUM,SIG)/ C234600200003 (6-C-12(A,X)6-C-11,,SIG)) C234600200004 2(13-AL-27(A,X)9-F-18,CUM,SIG) C234600200005 SAMPLE 99.99% Al foils of thickness 0.008 cm (0.23 g/cm2) for C234600200006 monitoring and 0.013 cm (0.035 g/cm2) for C234600200007 sigma[27Al(alpha,x)18F] determinations. The guard foilsC234600200008 were 0.004 cm thick. C234600200009 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600200010 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600200011 DECAY-DATA (9-F-18,109.7MIN,B+,,0.97) C234600200012 ERR-ANALYS (DATA-ERR) Division error. C234600200013 STATUS (TABLE) Table III, page 1721. C234600200014 ENDBIB 12 0 C234600200015 COMMON 2 3 C234600200016 MONIT 2MONIT-ERR 2 C234600200017 MB MB C234600200018 48.9 1.8 C234600200019 ENDCOMMON 3 0 C234600200020 DATA 4 1 C234600200021 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600200022 NO-DIM PER-CENT MB PER-CENT C234600200023 0.255 1.8 12.5 4.0 C234600200024 ENDDATA 3 0 C234600200025 ENDSUBENT 24 0 C234600299999 SUBENT C2346003 20180703 C178C234600300001 BIB 7 14 C234600300002 REACTION 1((8-O-16(A,X)8-O-15,,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234600300003 2(8-O-16(A,X)8-O-15,,SIG) C234600300004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234600300005 g/cm2) thick and 99.5% pure. The front and rear guard C234600300006 disks were 0.075 and 0.32-cm BeO disks, C234600300007 respectively. The contamination was determined by C234600300008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234600300009 quantities of other elements. The oxygen was taken to C234600300010 be 100% 16O. C234600300011 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600300012 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600300013 DECAY-DATA (8-O-15,2.05MIN,B+,,1.0) C234600300014 ERR-ANALYS (DATA-ERR) Division error. C234600300015 STATUS (TABLE) Table III, page 1721. C234600300016 ENDBIB 14 0 C234600300017 COMMON 2 3 C234600300018 MONIT 2MONIT-ERR 2 C234600300019 MB MB C234600300020 48.9 1.8 C234600300021 ENDCOMMON 3 0 C234600300022 DATA 4 1 C234600300023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600300024 NO-DIM PER-CENT MB PER-CENT C234600300025 0.953 3.0 46.6 6.0 C234600300026 ENDDATA 3 0 C234600300027 ENDSUBENT 26 0 C234600399999 SUBENT C2346004 20180703 C178C234600400001 BIB 7 14 C234600400002 REACTION 1((8-O-16(A,X)7-N-13,CUM,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234600400003 2(8-O-16(A,X)7-N-13,CUM,SIG) C234600400004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234600400005 g/cm2) thick and 99.5% pure. The front and rear guard C234600400006 disks were 0.075 and 0.32-cm BeO disks, C234600400007 respectively. The contamination was determined by C234600400008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234600400009 quantities of other elements. The oxygen was taken to C234600400010 be 100% 16O. C234600400011 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600400012 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600400013 DECAY-DATA (7-N-13,9.96MIN,B+,,1.0) C234600400014 ERR-ANALYS (DATA-ERR) Division error. C234600400015 STATUS (TABLE) Table III, page 1721. C234600400016 ENDBIB 14 0 C234600400017 COMMON 2 3 C234600400018 MONIT MONIT-ERR C234600400019 MB MB C234600400020 48.9 1.8 C234600400021 ENDCOMMON 3 0 C234600400022 DATA 4 1 C234600400023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600400024 NO-DIM PER-CENT MB PER-CENT C234600400025 0.138 6.0 6.75 7.0 C234600400026 ENDDATA 3 0 C234600400027 ENDSUBENT 26 0 C234600499999 SUBENT C2346005 20180703 C178C234600500001 BIB 7 14 C234600500002 REACTION 1((8-O-16(A,X)6-C-11,,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234600500003 2(8-O-16(A,X)6-C-11,,SIG) C234600500004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234600500005 g/cm2) thick and 99.5% pure. The front and rear guard C234600500006 disks were 0.075 and 0.32-cm BeO disks, C234600500007 respectively. The contamination was determined by C234600500008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234600500009 quantities of other elements. The oxygen was taken to C234600500010 be 100% 16O. C234600500011 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600500012 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600500013 DECAY-DATA (6-C-11,20.35MIN,B+,,1.0) C234600500014 ERR-ANALYS (DATA-ERR) Division error. C234600500015 STATUS (TABLE) Table III, page 1721. C234600500016 ENDBIB 14 0 C234600500017 COMMON 2 3 C234600500018 MONIT 2MONIT-ERR 2 C234600500019 MB MB C234600500020 48.9 1.8 C234600500021 ENDCOMMON 3 0 C234600500022 DATA 4 1 C234600500023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600500024 NO-DIM PER-CENT MB PER-CENT C234600500025 0.380 3.0 18.5 5.0 C234600500026 ENDDATA 3 0 C234600500027 ENDSUBENT 26 0 C234600599999 SUBENT C2346006 20180703 C178C234600600001 BIB 7 11 C234600600002 REACTION 1((6-C-12(A,X)4-BE-7,,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234600600003 2(6-C-12(A,X)4-BE-7,,SIG) C234600600004 SAMPLE Polystyrene (CH)n disks 0.16 cm (0.17 g/cm2) thick C234600600005 with 0.008-cm polyethylene guard foils. The carbon C234600600006 cross sections are based on the total carbon (12C+13C) C234600600007 content. C234600600008 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600600009 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600600010 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234600600011 ERR-ANALYS (DATA-ERR) Division error. C234600600012 STATUS (TABLE) Table III, page 1721. C234600600013 ENDBIB 11 0 C234600600014 COMMON 2 3 C234600600015 MONIT 2MONIT-ERR 2 C234600600016 MB MB C234600600017 48.9 1.8 C234600600018 ENDCOMMON 3 0 C234600600019 DATA 4 1 C234600600020 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600600021 NO-DIM PER-CENT MB PER-CENT C234600600022 0.413 3.0 20.2 6.0 C234600600023 ENDDATA 3 0 C234600600024 ENDSUBENT 23 0 C234600699999 SUBENT C2346007 20180703 C178C234600700001 BIB 7 12 C234600700002 REACTION 1((6-C-12(A,X)4-BE-7,,SIG)/ C234600700003 (13-AL-27(A,X)9-F-18,CUM,SIG)) C234600700004 2(6-C-12(A,X)4-BE-7,,SIG) C234600700005 SAMPLE Polystyrene (CH)n disks 0.16 cm (0.17 g/cm2) thick C234600700006 with 0.008-cm polyethylene guard foils. The carbon C234600700007 cross sections are based on the total carbon (12C+13C) C234600700008 content. C234600700009 MONITOR 2(13-AL-27(A,X)9-F-18,CUM,SIG) C234600700010 MONIT-REF 2((MONIT)C2346002,J.R.Radin+,J,PR/C,9,1718,1974) C234600700011 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234600700012 ERR-ANALYS (DATA-ERR) Division error. C234600700013 STATUS (TABLE) Table III, page 1721. C234600700014 ENDBIB 12 0 C234600700015 COMMON 1 3 C234600700016 MONIT 2 C234600700017 MB C234600700018 12.5 C234600700019 ENDCOMMON 3 0 C234600700020 DATA 4 1 C234600700021 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600700022 NO-DIM PER-CENT MB PER-CENT C234600700023 1.59 3.0 19.9 6.0 C234600700024 ENDDATA 3 0 C234600700025 ENDSUBENT 24 0 C234600799999 SUBENT C2346008 20180703 C178C234600800001 BIB 2 4 C234600800002 REACTION (6-C-12(A,X)4-BE-7,,SIG) Average value. C234600800003 STATUS (DEP,C2346006) C234600800004 (DEP,C2346007) C234600800005 (TABLE) Table III, page 1721. C234600800006 ENDBIB 4 0 C234600800007 NOCOMMON 0 0 C234600800008 DATA 2 1 C234600800009 DATA ERR-T C234600800010 MB PER-CENT C234600800011 20.0 6.0 C234600800012 ENDDATA 3 0 C234600800013 ENDSUBENT 12 0 C234600899999 SUBENT C2346009 20180703 C178C234600900001 BIB 7 13 C234600900002 REACTION 1((4-BE-9(A,X)4-BE-7,,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234600900003 2(4-BE-9(A,X)4-BE-7,,SIG) C234600900004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234600900005 g/cm2) thick and 99.5% pure. The front and rear guard C234600900006 disks were 0.075 and 0.32-cm BeO disks, C234600900007 respectively. The contamination was determined by C234600900008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234600900009 quantities of other elements. C234600900010 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234600900011 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234600900012 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234600900013 ERR-ANALYS (DATA-ERR) Division error. C234600900014 STATUS (TABLE) Table III, page 1721. C234600900015 ENDBIB 13 0 C234600900016 COMMON 2 3 C234600900017 MONIT 2MONIT-ERR 2 C234600900018 MB MB C234600900019 48.9 1.8 C234600900020 ENDCOMMON 3 0 C234600900021 DATA 4 1 C234600900022 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234600900023 NO-DIM NO-DIM MB PER-CENT C234600900024 0.262 4.0 12.8 5.0 C234600900025 ENDDATA 3 0 C234600900026 ENDSUBENT 25 0 C234600999999 SUBENT C2346010 20180703 C178C234601000001 BIB 7 14 C234601000002 REACTION 1((4-BE-9(A,X)4-BE-7,,SIG)/ C234601000003 (13-AL-27(A,X)9-F-18,CUM,SIG)) C234601000004 2(4-BE-9(A,X)4-BE-7,,SIG) C234601000005 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234601000006 g/cm2) thick and 99.5% pure. The front and rear guard C234601000007 disks were 0.075 and 0.32-cm BeO disks, C234601000008 respectively. The contamination was determined by C234601000009 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234601000010 quantities of other elements. C234601000011 MONITOR 2(13-AL-27(A,X)9-F-18,CUM,SIG) C234601000012 MONIT-REF 2((MONIT)C2346002,J.R.Radin+,J,PR/C,9,1718,1974) C234601000013 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234601000014 ERR-ANALYS (DATA-ERR) Division error. C234601000015 STATUS (TABLE) Table III, page 1721. C234601000016 ENDBIB 14 0 C234601000017 COMMON 1 3 C234601000018 MONIT 2 C234601000019 MB C234601000020 12.5 C234601000021 ENDCOMMON 3 0 C234601000022 DATA 4 1 C234601000023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234601000024 NO-DIM NO-DIM MB PER-CENT C234601000025 1.007 4.0 12.6 6.0 C234601000026 ENDDATA 3 0 C234601000027 ENDSUBENT 26 0 C234601099999 SUBENT C2346011 20180703 C178C234601100001 BIB 7 13 C234601100002 REACTION 1((4-BE-9(A,X)4-BE-7,,SIG)/(6-C-12(A,X)4-BE-7,,SIG)) C234601100003 2(4-BE-9(A,X)4-BE-7,,SIG) C234601100004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234601100005 g/cm2) thick and 99.5% pure. The front and rear guard C234601100006 disks were 0.075 and 0.32-cm BeO disks, C234601100007 respectively. The contamination was determined by C234601100008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234601100009 quantities of other elements. C234601100010 MONITOR 2(6-C-12(A,X)4-BE-7,,SIG) C234601100011 MONIT-REF 2((MONIT)C2346008,J.R.Radin+,J,PR/C,9,1718,1974) C234601100012 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234601100013 ERR-ANALYS (DATA-ERR) Division error. C234601100014 STATUS (TABLE) Table III, page 1721. C234601100015 ENDBIB 13 0 C234601100016 COMMON 1 3 C234601100017 MONIT 2 C234601100018 MB C234601100019 20.0 C234601100020 ENDCOMMON 3 0 C234601100021 DATA 4 1 C234601100022 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234601100023 NO-DIM NO-DIM MB PER-CENT C234601100024 0.628 2.0 12.6 6.0 C234601100025 ENDDATA 3 0 C234601100026 ENDSUBENT 25 0 C234601199999 SUBENT C2346012 20180703 C178C234601200001 BIB 2 5 C234601200002 REACTION (4-BE-9(A,X)4-BE-7,,SIG) Average value. C234601200003 STATUS (DEP,C2346009) C234601200004 (DEP,C2346010) C234601200005 (DEP,C2346011) C234601200006 (TABLE) Table III, page 1721. C234601200007 ENDBIB 5 0 C234601200008 NOCOMMON 0 0 C234601200009 DATA 2 1 C234601200010 DATA ERR-T C234601200011 MB PER-CENT C234601200012 12.6 6.0 C234601200013 ENDDATA 3 0 C234601200014 ENDSUBENT 13 0 C234601299999 SUBENT C2346013 20180703 C178C234601300001 BIB 7 14 C234601300002 REACTION 1((8-O-16(A,X)4-BE-7,,SIG)/(6-C-12(A,X)6-C-11,,SIG)) C234601300003 2(8-O-16(A,X)4-BE-7,,SIG) C234601300004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234601300005 g/cm2) thick and 99.5% pure. The front and rear guard C234601300006 disks were 0.075 and 0.32-cm BeO disks, C234601300007 respectively. The contamination was determined by C234601300008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234601300009 quantities of other elements. The oxygen was taken to C234601300010 be 100% 16O. C234601300011 MONITOR 2(6-C-12(A,X)6-C-11,,SIG) C234601300012 MONIT-REF 2((MONIT)C0379001,J.Radin,J,PR/C,2,793,1970) C234601300013 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234601300014 ERR-ANALYS (DATA-ERR) Division error. C234601300015 STATUS (TABLE) Table III, page 1721. C234601300016 ENDBIB 14 0 C234601300017 COMMON 2 3 C234601300018 MONIT 2MONIT-ERR 2 C234601300019 MB MB C234601300020 48.9 1.8 C234601300021 ENDCOMMON 3 0 C234601300022 DATA 4 1 C234601300023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234601300024 NO-DIM PER-CENT MB PER-CENT C234601300025 0.369 6.0 18.0 7.0 C234601300026 ENDDATA 3 0 C234601300027 ENDSUBENT 26 0 C234601399999 SUBENT C2346014 20180703 C178C234601400001 BIB 7 15 C234601400002 REACTION 1((8-O-16(A,X)4-BE-7,,SIG)/ C234601400003 (13-AL-27(A,X)9-F-18,CUM,SIG)) C234601400004 2(8-O-16(A,X)4-BE-7,,SIG) C234601400005 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234601400006 g/cm2) thick and 99.5% pure. The front and rear guard C234601400007 disks were 0.075 and 0.32-cm BeO disks, C234601400008 respectively. The contamination was determined by C234601400009 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234601400010 quantities of other elements. The oxygen was taken to C234601400011 be 100% 16O. C234601400012 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234601400013 MONITOR 2(13-AL-27(A,X)9-F-18,CUM,SIG) C234601400014 MONIT-REF 2((MONIT)C2346002,J.R.Radin+,J,PR/C,9,1718,1974) C234601400015 ERR-ANALYS (DATA-ERR) Division error. C234601400016 STATUS (TABLE) Table III, page 1721. C234601400017 ENDBIB 15 0 C234601400018 COMMON 1 3 C234601400019 MONIT 2 C234601400020 MB C234601400021 12.5 C234601400022 ENDCOMMON 3 0 C234601400023 DATA 4 1 C234601400024 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234601400025 NO-DIM PER-CENT MB PER-CENT C234601400026 1.56 7.0 19.5 8.0 C234601400027 ENDDATA 3 0 C234601400028 ENDSUBENT 27 0 C234601499999 SUBENT C2346015 20180703 C178C234601500001 BIB 7 14 C234601500002 REACTION 1((8-O-16(A,X)4-BE-7,,SIG)/(6-C-12(A,X)4-BE-7,,SIG)) C234601500003 2(8-O-16(A,X)4-BE-7,,SIG) C234601500004 SAMPLE Ceramic disks 0.075 cm (0.26 g/cm2) and 0.32 cm (0.95 C234601500005 g/cm2) thick and 99.5% pure. The front and rear guard C234601500006 disks were 0.075 and 0.32-cm BeO disks, C234601500007 respectively. The contamination was determined by C234601500008 spectrometric analysis to be (1.0+1-0.5)% Mg plus traceC234601500009 quantities of other elements. The oxygen was taken to C234601500010 be 100% 16O. C234601500011 DECAY-DATA (4-BE-7,53.6D,DG,478.,0.103) C234601500012 MONITOR 2(6-C-12(A,X)4-BE-7,,SIG) C234601500013 MONIT-REF 2((MONIT)C2346008,J.R.Radin+,J,PR/C,9,1718,1974) C234601500014 ERR-ANALYS (DATA-ERR) Division error. C234601500015 STATUS (TABLE) Table III, page 1721. C234601500016 ENDBIB 14 0 C234601500017 COMMON 1 3 C234601500018 MONIT 2 C234601500019 MB C234601500020 20.0 C234601500021 ENDCOMMON 3 0 C234601500022 DATA 4 1 C234601500023 DATA 1DATA-ERR 1DATA 2ERR-T 2 C234601500024 NO-DIM PER-CENT MB PER-CENT C234601500025 0.910 6.0 18.3 8.0 C234601500026 ENDDATA 3 0 C234601500027 ENDSUBENT 26 0 C234601599999 SUBENT C2346016 20180703 C178C234601600001 BIB 2 5 C234601600002 REACTION (8-O-16(A,X)4-BE-7,,SIG) Average value. C234601600003 STATUS (DEP,C2346013) C234601600004 (DEP,C2346014) C234601600005 (DEP,C2346015) C234601600006 (TABLE) Table III, page 1721. C234601600007 ENDBIB 5 0 C234601600008 NOCOMMON 0 0 C234601600009 DATA 2 1 C234601600010 DATA ERR-T C234601600011 MB PER-CENT C234601600012 18.5 7.0 C234601600013 ENDDATA 3 0 C234601600014 ENDSUBENT 13 0 C234601699999 ENDENTRY 16 0 C234699999999