ENTRY C2379 20181214 C184C237900000001 SUBENT C2379001 20181214 C184C237900100001 BIB 13 40 C237900100002 TITLE Cross sections for the 12C(pi+-,pi N)11C reactions C237900100003 from 30 to 100 MeV C237900100004 AUTHOR (G.W.Butler,B.J.Dropesky,C.J.Orth,R.E.L.Green, C237900100005 R.G.Korteling,G.K.Y.Lam) C237900100006 REFERENCE (J,PR/C,26,1737,1982) C237900100007 #doi:10.1103/PhysRevC.26.1737 C237900100008 REL-REF (O,C2378001,B.J.Dropesky+,J,PR/C,20,1844,1979) C237900100009 Previous measurement at LAMPF. C237900100010 INSTITUTE (1USALAS,1CANSFU,1CANUBC) C237900100011 FACILITY (CYCLO,1CANUBC) The TRIUMF Biomedical Facility. C237900100012 DETECTOR (NAICR,SCIN) 75-mm-thick x 75-mm-diam NaI(Tl) C237900100013 scintillator. C237900100014 SAMPLE The targets were 3.2-mm-thick by 38-mm-diam disks of C237900100015 Pilots B and F plastic scintillator containing 91.6% C237900100016 carbon by weight. These disks were the same diameter C237900100017 as the first scintillator of the counter telescope C237900100018 and were mounted to its upstream face during the C237900100019 irradiations. No correction was made for the 1.11% 13C C237900100020 content of the carbon; that is, the results reported C237900100021 here technically apply to natural carbon. C237900100022 METHOD (ACTIV,COINC) The targets were irradiated for 20 to C237900100023 40 min (one to two half-lives of the 11C) and were C237900100024 then transported to a counting area where the target C237900100025 scintillator disk was optically coupled to the face C237900100026 of a photomultiplier tube. This assembly was then C237900100027 placed in contact with the face of a NaI(Tl) C237900100028 scintillator inside a lead shield. The 11C positrons C237900100029 were self-detected by the plastic scintillator, and C237900100030 the annihilation quanta were detected in the NaI(Tl) C237900100031 scintillator which had an electronic window set to C237900100032 include only the 511-keV photopeak pulses. Each C237900100033 sample was counted for at least three half-lives with C237900100034 standard beta-gamma coincidence circuity. The 11C C237900100035 disintegration rate was calculated from the net beta+, C237900100036 gamma, and beta+-gamma coincidence rates. C237900100037 CORRECTION Reproducibility corrections ranged from 2% for 30-MeV C237900100038 pi+ to 13% for 30-MeV pi-. C237900100039 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C237900100040 DECAY-DATA (6-C-11,20.4MIN,B+) C237900100041 HISTORY (20181214C) BP C237900100042 ENDBIB 40 0 C237900100043 NOCOMMON 0 0 C237900100044 ENDSUBENT 43 0 C237900199999 SUBENT C2379002 20181214 C184C237900200001 BIB 2 2 C237900200002 REACTION (6-C-0(PIP,X)6-C-11,,SIG) C237900200003 STATUS (TABLE) Table I, page 1738. C237900200004 ENDBIB 2 0 C237900200005 NOCOMMON 0 0 C237900200006 DATA 3 8 C237900200007 EN DATA DATA-ERR C237900200008 MEV MB MB C237900200009 30.0 3.2 0.4 C237900200010 40.0 6.5 0.4 C237900200011 50.0 10.3 0.6 C237900200012 60.0 14.6 0.8 C237900200013 70.0 20.1 1.0 C237900200014 80.0 25.2 1.3 C237900200015 90.0 29.8 1.5 C237900200016 100.0 33.5 1.7 C237900200017 ENDDATA 10 0 C237900200018 ENDSUBENT 17 0 C237900299999 SUBENT C2379003 20181214 C184C237900300001 BIB 2 2 C237900300002 REACTION (6-C-0(PIN,X)6-C-11,,SIG) C237900300003 STATUS (TABLE) Table I, page 1738. C237900300004 ENDBIB 2 0 C237900300005 NOCOMMON 0 0 C237900300006 DATA 3 7 C237900300007 EN DATA DATA-ERR C237900300008 MEV MB MB C237900300009 30.0 0.9 0.8 C237900300010 40.0 2.9 0.4 C237900300011 50.0 6.1 0.5 C237900300012 60.0 10.6 0.6 C237900300013 70.0 16.4 0.8 C237900300014 80.0 24.3 2.0 C237900300015 90.0 30.0 1.5 C237900300016 ENDDATA 9 0 C237900300017 ENDSUBENT 16 0 C237900399999 ENDENTRY 3 0 C237999999999