ENTRY C2368 20181207 C183C236800000001 SUBENT C2368001 20181207 C183C236800100001 BIB 13 37 C236800100002 TITLE Spallation of aluminum by 300 GeV protons C236800100003 AUTHOR (S.B.Kaufman,M.W.Weisfield,E.P.Steinberg,B.D.Wilkins, C236800100004 D.J.Henderson) C236800100005 REFERENCE (J,PR/C,19,962,1979) C236800100006 #doi:10.1103/PhysRevC.19.962 C236800100007 INSTITUTE (1USAANL) C236800100008 FACILITY (ACCEL,1USANAL) The Fermilab accelerator. C236800100009 INC-SPECT The proton intensity varied from 10**11 to 10**13 C236800100010 protons per pulse during the course of these C236800100011 experiments, with a pulse repetition rate of ~8 s. C236800100012 SAMPLE Three types of target arrangements were used. In the C236800100013 first, the targets consisted of three or four C236800100014 aluminum foils and three polyethylene foils. The C236800100015 middle one or two aluminum foils were 14 mg/cm2 thick C236800100016 and were guarded by 1.8 mg/cm2 aluminum foils; the C236800100017 polyethylene foils were all 12 mg/cm2 thick. In the C236800100018 second arrangement, graphite foils of thickness 23 C236800100019 mg/cm2 were substituted for the polyethylene. The C236800100020 third target consisted only of aluminum foils; this C236800100021 was used to measure the cross sections for production C236800100022 of 7Be and 22Na relative to that for 22Na, with C236800100023 irradiations lasting several hours. C236800100024 DETECTOR (GELI) Ge(Li) spectrometer. C236800100025 METHOD (ACTIV,STTA) The measurements were made by exposing a C236800100026 stack of target and guard foils in the external C236800100027 proton beam in the Meson Hall of the Fermilab C236800100028 accelerator. C236800100029 ERR-ANALYS (ERR-T) The compounding of the standard deviations C236800100030 from the decay curve analyses and the estimated C236800100031 uncertainties in absolute counting efficiencies. The C236800100032 errors in the cross section values include the error C236800100033 in the 12C(p,pn)11C cross section. C236800100034 (ERR-1) Disintegration rates. C236800100035 (ERR-2) Efficiency accuracy. C236800100036 MONITOR (6-C-12(P,X)6-C-11,,SIG) C236800100037 MONIT-REF ((MONIT)C2341001,S.B.Kaufman+,J,PR/C,13,253,1976) C236800100038 HISTORY (20181207C) BP C236800100039 ENDBIB 37 0 C236800100040 COMMON 5 3 C236800100041 EN MONIT MONIT-ERR ERR-1 ERR-2 C236800100042 GEV MB MB PER-CENT PER-CENT C236800100043 300.0 24.6 1.6 3.0 4.0 C236800100044 ENDCOMMON 3 0 C236800100045 ENDSUBENT 44 0 C236800199999 SUBENT C2368002 20181207 C183C236800200001 BIB 4 5 C236800200002 REACTION ((13-AL-27(P,X)4-BE-7,,SIG)/(6-C-12(P,X)6-C-11,,SIG)) C236800200003 ANALYSIS (DECAY) Determined indirectly from 24Na ratio. C236800200004 DECAY-DATA (4-BE-7,53.4D,DG,477.6,0.104) C236800200005 (6-C-11,20.4MIN,AR,511.0,2.0) C236800200006 STATUS (TABLE) Table II, page 963. C236800200007 ENDBIB 5 0 C236800200008 NOCOMMON 0 0 C236800200009 DATA 2 1 C236800200010 DATA ERR-T C236800200011 NO-DIM NO-DIM C236800200012 0.353 0.020 C236800200013 ENDDATA 3 0 C236800200014 ENDSUBENT 13 0 C236800299999 SUBENT C2368003 20181207 C183C236800300001 BIB 4 4 C236800300002 REACTION ((13-AL-27(P,X)6-C-11,,SIG)/(6-C-12(P,X)6-C-11,,SIG)) C236800300003 ANALYSIS (DECAY) C236800300004 DECAY-DATA (6-C-11,20.4MIN,AR,511.0,2.0) C236800300005 STATUS (TABLE) Table II, page 963. C236800300006 ENDBIB 4 0 C236800300007 NOCOMMON 0 0 C236800300008 DATA 2 1 C236800300009 DATA ERR-T C236800300010 NO-DIM NO-DIM C236800300011 0.172 0.006 C236800300012 ENDDATA 3 0 C236800300013 ENDSUBENT 12 0 C236800399999 SUBENT C2368004 20181207 C183C236800400001 BIB 4 5 C236800400002 REACTION ((13-AL-27(P,X)7-N-13,,SIG)/(6-C-12(P,X)6-C-11,,SIG)) C236800400003 ANALYSIS (DECAY) C236800400004 DECAY-DATA (7-N-13,9.97MIN,AR,511.0,2.0) C236800400005 (6-C-11,20.4MIN,AR,511.0,2.0) C236800400006 STATUS (TABLE) Table II, page 963. C236800400007 ENDBIB 5 0 C236800400008 NOCOMMON 0 0 C236800400009 DATA 2 1 C236800400010 DATA ERR-T C236800400011 NO-DIM NO-DIM C236800400012 0.051 0.003 C236800400013 ENDDATA 3 0 C236800400014 ENDSUBENT 13 0 C236800499999 SUBENT C2368005 20181207 C183C236800500001 BIB 4 5 C236800500002 REACTION ((13-AL-27(P,X)9-F-18,,SIG)/(6-C-12(P,X)6-C-11,,SIG)) C236800500003 ANALYSIS (DECAY) C236800500004 DECAY-DATA (9-F-18,109.7MIN,AR,511.0,1.94) C236800500005 (6-C-11,20.4MIN,AR,511.0,2.0) C236800500006 STATUS (TABLE) Table II, page 963. C236800500007 ENDBIB 5 0 C236800500008 NOCOMMON 0 0 C236800500009 DATA 2 1 C236800500010 DATA ERR-T C236800500011 NO-DIM NO-DIM C236800500012 0.227 0.009 C236800500013 ENDDATA 3 0 C236800500014 ENDSUBENT 13 0 C236800599999 SUBENT C2368006 20181207 C183C236800600001 BIB 4 5 C236800600002 REACTION ((13-AL-27(P,X)11-NA-22,,SIG)/(6-C-12(P,X)6-C-11,,SIG))C236800600003 ANALYSIS (DECAY) Determined indirectly from 24Na ratio. C236800600004 DECAY-DATA (11-NA-22,2.60YR,DG,1274.5,1.0) C236800600005 (6-C-11,20.4MIN,AR,511.0,2.0) C236800600006 STATUS (TABLE) Table II, page 963. C236800600007 ENDBIB 5 0 C236800600008 NOCOMMON 0 0 C236800600009 DATA 2 1 C236800600010 DATA ERR-T C236800600011 NO-DIM NO-DIM C236800600012 0.383 0.024 C236800600013 ENDDATA 3 0 C236800600014 ENDSUBENT 13 0 C236800699999 SUBENT C2368007 20181207 C183C236800700001 BIB 5 9 C236800700002 REACTION ((13-AL-27(P,X)11-NA-24,,SIG)/(6-C-12(P,X)6-C-11,,SIG))C236800700003 ANALYSIS (DECAY) C236800700004 DECAY-DATA (11-NA-24,15.02HR,DG,1368.5,1.0, C236800700005 DG,2753.9,1.0) C236800700006 (6-C-11,20.4MIN,AR,511.0,2.0) C236800700007 CORRECTION A correction for production of 24Na by secondary C236800700008 neutrons via the 27Al(n,alpha)24Na reaction was C236800700009 determined in a separate experiment. C236800700010 STATUS (TABLE) Table II, page 963. C236800700011 ENDBIB 9 0 C236800700012 NOCOMMON 0 0 C236800700013 DATA 2 1 C236800700014 DATA ERR-T C236800700015 NO-DIM NO-DIM C236800700016 0.327 0.010 C236800700017 ENDDATA 3 0 C236800700018 ENDSUBENT 17 0 C236800799999 SUBENT C2368008 20181207 C183C236800800001 BIB 2 3 C236800800002 REACTION (13-AL-27(P,X)4-BE-7,,SIG) C236800800003 STATUS (DEP,C2368002) C236800800004 (TABLE) Table II, page 963. C236800800005 ENDBIB 3 0 C236800800006 NOCOMMON 0 0 C236800800007 DATA 2 1 C236800800008 DATA ERR-T C236800800009 MB MB C236800800010 8.7 0.7 C236800800011 ENDDATA 3 0 C236800800012 ENDSUBENT 11 0 C236800899999 SUBENT C2368009 20181207 C183C236800900001 BIB 2 3 C236800900002 REACTION (13-AL-27(P,X)6-C-11,,SIG) C236800900003 STATUS (DEP,C2368003) C236800900004 (TABLE) Table II, page 963. C236800900005 ENDBIB 3 0 C236800900006 NOCOMMON 0 0 C236800900007 DATA 2 1 C236800900008 DATA ERR-T C236800900009 MB MB C236800900010 4.23 0.31 C236800900011 ENDDATA 3 0 C236800900012 ENDSUBENT 11 0 C236800999999 SUBENT C2368010 20181207 C183C236801000001 BIB 2 3 C236801000002 REACTION (13-AL-27(P,X)7-N-13,,SIG) C236801000003 STATUS (DEP,C2368004) C236801000004 (TABLE) Table II, page 963. C236801000005 ENDBIB 3 0 C236801000006 NOCOMMON 0 0 C236801000007 DATA 2 1 C236801000008 DATA ERR-T C236801000009 MB MB C236801000010 1.25 0.11 C236801000011 ENDDATA 3 0 C236801000012 ENDSUBENT 11 0 C236801099999 SUBENT C2368011 20181207 C183C236801100001 BIB 2 3 C236801100002 REACTION (13-AL-27(P,X)9-F-18,,SIG) C236801100003 STATUS (DEP,C2368005) C236801100004 (TABLE) Table II, page 963. C236801100005 ENDBIB 3 0 C236801100006 NOCOMMON 0 0 C236801100007 DATA 2 1 C236801100008 DATA ERR-T C236801100009 MB MB C236801100010 5.58 0.43 C236801100011 ENDDATA 3 0 C236801100012 ENDSUBENT 11 0 C236801199999 SUBENT C2368012 20181207 C183C236801200001 BIB 2 3 C236801200002 REACTION (13-AL-27(P,X)11-NA-22,,SIG) C236801200003 STATUS (DEP,C2368006) C236801200004 (TABLE) Table II, page 963. C236801200005 ENDBIB 3 0 C236801200006 NOCOMMON 0 0 C236801200007 DATA 2 1 C236801200008 DATA ERR-T C236801200009 MB MB C236801200010 9.4 0.8 C236801200011 ENDDATA 3 0 C236801200012 ENDSUBENT 11 0 C236801299999 SUBENT C2368013 20181207 C183C236801300001 BIB 2 3 C236801300002 REACTION (13-AL-27(P,X)11-NA-24,,SIG) C236801300003 STATUS (DEP,C2368007) C236801300004 (TABLE) Table II, page 963. C236801300005 ENDBIB 3 0 C236801300006 NOCOMMON 0 0 C236801300007 DATA 2 1 C236801300008 DATA ERR-T C236801300009 MB MB C236801300010 8.04 0.58 C236801300011 ENDDATA 3 0 C236801300012 ENDSUBENT 11 0 C236801399999 ENDENTRY 13 0 C236899999999