ENTRY C2344 20180622 C177C234400000001 SUBENT C2344001 20180622 C177C234400100001 BIB 8 20 C234400100002 TITLE Study of (alpha,alpha n) Reactions with 900-MeV C234400100003 Helium Ions C234400100004 AUTHOR (L.B.Church) C234400100005 REFERENCE (J,PR/C,6,1293,1972) C234400100006 #doi:10.1103/PhysRevC.6.1293 C234400100007 INSTITUTE (1USANYB) C234400100008 FACILITY (SYNCY,1USABRK) The Lawrence Berkeley Laboratory 184- C234400100009 in. synchrocyclotron. C234400100010 DETECTOR (GELI,PROPC) 7-cm3 Ge(Li) detector in connection with C234400100011 a multichannel analyzer, end-window proportional C234400100012 counter. C234400100013 METHOD (ACTIV,CHSEP) After bombardment the targets were C234400100014 taken to the chemistry laboratory. The chemical yield C234400100015 for each sample was determined after counting using C234400100016 atomic absorption spectroscopy. The decay rates for C234400100017 the 57Ni, 196mAu, and 196gAu were determined using a C234400100018 Ge(Li) detector. The decay rates of the 64Cu C234400100019 were determined by counting the beta radiations with C234400100020 a proportional counter. C234400100021 HISTORY (20180622C) BP C234400100022 ENDBIB 20 0 C234400100023 NOCOMMON 0 0 C234400100024 ENDSUBENT 23 0 C234400199999 SUBENT C2344002 20180622 C177C234400200001 BIB 7 18 C234400200002 REACTION (28-NI-58(A,X)28-NI-57,,SIG) C234400200003 SAMPLE (28-NI-58,ENR=0.999) The nickel targets were C234400200004 fabricated by electroplating isotopically enriched C234400200005 (99.9%) 58Ni to a surface density of about 5 mg cm-2 C234400200006 onto 0.08-mm thick gold foil. During the irradiation C234400200007 all targets were flanked by a set of 99.9% pure C234400200008 aluminum foils: two 0.04-mm-thick inner guard foils, C234400200009 two 0.08- mm-thick beam-monitor foils, and two C234400200010 0.04-mm-thick outer guard foils. C234400200011 MONITOR (13-AL-27(A,X)11-NA-24,,SIG) C234400200012 MONIT-REF (C2344006,L.B.Church,J,PR/C,6,1293,1972) C234400200013 ERR-ANALYS (ERR-T) When the systematic uncertainties are C234400200014 estimated, a total standard deviation is calculated C234400200015 to be less than 20%. C234400200016 (ERR-S) the random standard deviation, which averages C234400200017 about 5%. C234400200018 DECAY-DATA (28-NI-57,36.0HR,DG,1.37,0.86) C234400200019 STATUS (TABLE) Table II, page 1294. C234400200020 ENDBIB 18 0 C234400200021 COMMON 2 3 C234400200022 EN ERR-S C234400200023 MEV PER-CENT C234400200024 900.0 5.0 C234400200025 ENDCOMMON 3 0 C234400200026 DATA 2 1 C234400200027 DATA ERR-T C234400200028 MB MB C234400200029 49.3 3.5 C234400200030 ENDDATA 3 0 C234400200031 ENDSUBENT 30 0 C234400299999 SUBENT C2344003 20180622 C177C234400300001 BIB 7 19 C234400300002 REACTION (29-CU-65(A,X)29-CU-64,,SIG) C234400300003 SAMPLE (29-CU-65,ENR=0.997) The copper targets were enriched C234400300004 (99.7%) 65Cu electroplated onto 0.08-mm-thick C234400300005 titanium foil to a thickness of about 8 mg cm-2. C234400300006 During the irradiation all targets were flanked by a C234400300007 set of 99.9% pure aluminum foils: two 0.04-mm-thick C234400300008 inner guard foils, two 0.08- mm-thick beam-monitor C234400300009 foils, and two 0.04-mm-thick outer guard foils. C234400300010 MONITOR (13-AL-27(A,X)11-NA-24,,SIG) C234400300011 MONIT-REF (C2344006,L.B.Church,J,PR/C,6,1293,1972) C234400300012 ERR-ANALYS (ERR-T) When the systematic uncertainties are C234400300013 estimated, a total standard deviation is calculated C234400300014 to be less than 20%. C234400300015 (ERR-S) the random standard deviation, which averages C234400300016 about 5%. C234400300017 DECAY-DATA (29-CU-64,12.8HR,B-,0.57,0.38, C234400300018 B+,0.66,0.19, C234400300019 AR,0.511,0.38) C234400300020 STATUS (TABLE) Table II, page 1294. C234400300021 ENDBIB 19 0 C234400300022 COMMON 2 3 C234400300023 EN ERR-S C234400300024 MEV PER-CENT C234400300025 900.0 5.0 C234400300026 ENDCOMMON 3 0 C234400300027 DATA 2 1 C234400300028 DATA ERR-T C234400300029 MB MB C234400300030 64.6 2.8 C234400300031 ENDDATA 3 0 C234400300032 ENDSUBENT 31 0 C234400399999 SUBENT C2344004 20180622 C177C234400400001 BIB 7 16 C234400400002 REACTION (79-AU-197(A,X)79-AU-196-M2,,SIG) C234400400003 SAMPLE The gold targets were 0.08-mm-thick, 99.91 pure C234400400004 foils. During the irradiation all targets were C234400400005 flanked by a set of 99.9% pure aluminum foils: two C234400400006 0.04-mm-thick inner guard foils, two 0.08- mm-thick C234400400007 beam-monitor foils, and two 0.04-mm-thick outer guard C234400400008 foils. C234400400009 MONITOR (13-AL-27(A,X)11-NA-24,,SIG) C234400400010 MONIT-REF (C2344006,L.B.Church,J,PR/C,6,1293,1972) C234400400011 ERR-ANALYS (ERR-T) When the systematic uncertainties are C234400400012 estimated, a total standard deviation is calculated C234400400013 to be less than 20%. C234400400014 (ERR-S) the random standard deviation, which averages C234400400015 about 5%. C234400400016 DECAY-DATA (79-AU-196-M2,9.7HR,DG,0.148,0.42) C234400400017 STATUS (TABLE) Table II, page 1294. C234400400018 ENDBIB 16 0 C234400400019 COMMON 2 3 C234400400020 EN ERR-S C234400400021 MEV PER-CENT C234400400022 900.0 5.0 C234400400023 ENDCOMMON 3 0 C234400400024 DATA 2 1 C234400400025 DATA ERR-T C234400400026 MB MB C234400400027 6.0 0.6 C234400400028 ENDDATA 3 0 C234400400029 ENDSUBENT 28 0 C234400499999 SUBENT C2344005 20180622 C177C234400500001 BIB 7 16 C234400500002 REACTION (79-AU-197(A,X)79-AU-196,,SIG) C234400500003 SAMPLE The gold targets were 0.08-mm-thick, 99.91 pure C234400500004 foils. During the irradiation all targets were C234400500005 flanked by a set of 99.9% pure aluminum foils: two C234400500006 0.04-mm-thick inner guard foils, two 0.08- mm-thick C234400500007 beam-monitor foils, and two 0.04-mm-thick outer guard C234400500008 foils. C234400500009 MONITOR (13-AL-27(A,X)11-NA-24,,SIG) C234400500010 MONIT-REF (C2344006,L.B.Church,J,PR/C,6,1293,1972) C234400500011 ERR-ANALYS (ERR-T) When the systematic uncertainties are C234400500012 estimated, a total standard deviation is calculated C234400500013 to be less than 20%. C234400500014 (ERR-S) the random standard deviation, which averages C234400500015 about 5%. C234400500016 DECAY-DATA (79-AU-196-G,6.18D,DG,0.33/0.356,1.19) C234400500017 STATUS (TABLE) Table II, page 1294. C234400500018 ENDBIB 16 0 C234400500019 COMMON 2 3 C234400500020 EN ERR-S C234400500021 MEV PER-CENT C234400500022 900.0 5.0 C234400500023 ENDCOMMON 3 0 C234400500024 DATA 2 1 C234400500025 DATA ERR-T C234400500026 MB MB C234400500027 95.8 1.4 C234400500028 ENDDATA 3 0 C234400500029 ENDSUBENT 28 0 C234400599999 SUBENT C2344006 20180813 C177C234400600001 BIB 5 12 C234400600002 REACTION (13-AL-27(A,X)11-NA-24,,SIG) C234400600003 MONITOR (13-AL-27(A,X)9-F-18,,SIG) C234400600004 MONIT-REF (,J.R.Radin+,R,UCRL-20,121,1971) C234400600005 ERR-ANALYS (ERR-T) The 9% total uncertainty is the standard C234400600006 deviation of both the random and systematic sources C234400600007 of error in the measurements. C234400600008 (ERR-S) The random uncertainty between the two C234400600009 determinations was +1%. C234400600010 (ERR-1) the systematic uncertainties include the beta- C234400600011 counting efficiencies (+8%). C234400600012 (ERR-2) the 27Al(alpha,3alphan)18F cross section (+4%).C234400600013 STATUS (TABLE) page 1294. C234400600014 ENDBIB 12 0 C234400600015 COMMON 4 3 C234400600016 EN ERR-S ERR-1 ERR-2 C234400600017 MEV PER-CENT PER-CENT PER-CENT C234400600018 920.0 1.0 8.0 4.0 C234400600019 ENDCOMMON 3 0 C234400600020 DATA 2 1 C234400600021 DATA ERR-T C234400600022 MB MB C234400600023 22.0 2.0 C234400600024 ENDDATA 3 0 C234400600025 ENDSUBENT 24 0 C234400699999 ENDENTRY 6 0 C234499999999