ENTRY O0429 20071101 O033O042900000001 SUBENT O0429001 20071101 O033O042900100001 BIB 10 30 O042900100002 TITLE C-12(p,pn)C-11 cross section at 1.0 GeV. O042900100003 AUTHOR (A.M.Poskanzer, L.P.Remsberg, S.Katcoff, J.B.Cumming) O042900100004 INSTITUTE (1USABNL) O042900100005 REFERENCE (J,PR,133,B1507,1964) O042900100006 HISTORY (19980427C) O042900100007 (20040630A) Reference is corrected. Updated too O042900100008 (20071128A).Reference was changed from O042900100009 PR,B133,1507,1964 to PR,133,B1507,1964 as it coded in O042900100010 Phys.Rev. O042900100011 SAMPLE The targets consisted of plastic scintillator disks O042900100012 1/8 inch thick from which the C-11 gas loss is O042900100013 negligible. O042900100014 In the first experiment the diameter was 1 1/2 inch andO042900100015 in the later experiments 3/4 inch the carbon content ofO042900100016 the scintillators was taken to be 92% and, as is O042900100017 customary, the cross sections were calculated on the O042900100018 basis of the total carbon content of the targets, not O042900100019 just the C-12 content. O042900100020 DETECTOR (SCIN) O042900100021 A 100-mu thick Ilford G-5 emulsion was mounted on the O042900100022 upstream side of each scintillator. The emulsions were O042900100023 perpendicular to the beam so that the plunging track O042900100024 method was used in scanning. In the later experiments O042900100025 pellicules were used instead of glass backed emulsions.O042900100026 FACILITY (SYNCY,1USABNL) The Cosmotron O042900100027 METHOD (ACTIV) Time of irradiation was 2 minutes. O042900100028 (EXTB).The external beam was partially defocused in an O042900100029 attempt to make the incident flux uniform across the O042900100030 target. O042900100031 STATUS (TABLE) O042900100032 ENDBIB 30 0 O042900100033 NOCOMMON 0 0 O042900100034 ENDSUBENT 33 0 O042900199999 SUBENT O0429002 20040701 0000O042900200001 BIB 2 8 O042900200002 REACTION (6-C-12(P,X)6-C-11,,SIG) Independent. O042900200003 ERR-ANALYS (EN-ERR).The uncertainty is reported by authors. O042900200004 (ERR-T).The uncertainty is reported by authors. O042900200005 The sources of systematic errors which have been O042900200006 mentioned are-C-11 counting efficiency, secondary O042900200007 correction, scanning efficiency and rectangular area. O042900200008 Root-mean-square combination of these errors is 3.6%. O042900200009 Thus the total error is 4.4%. O042900200010 ENDBIB 8 0 O042900200011 NOCOMMON 0 0 O042900200012 DATA 4 1 O042900200013 EN EN-ERR DATA ERR-T O042900200014 GEV GEV MB MB O042900200015 1. 0.05 29. 1.3 O042900200016 ENDDATA 3 0 O042900200017 ENDSUBENT 16 0 O042900299999 ENDENTRY 2 0 O042999999999