ENTRY 14275 20100925 13671427500000001 SUBENT 14275001 20100925 13671427500100001 BIB 10 18 1427500100002 TITLE Cross section for the reaction 12C(n,2n)11C at 90 MeV 1427500100003 AUTHOR (E.M.McMillan,H.F.York) 1427500100004 INSTITUTE (1USABRK) 1427500100005 REFERENCE (J,PR,73,262,1948) 1427500100006 FACILITY (CYCLO,1USABRK) Experiment performed at the 184-in. 1427500100007 cyclotron of the Radiation Laboratory, Berkeley. 1427500100008 SAMPLE Polystyrene sheet with thickness of 5 mil. 1427500100009 DETECTOR (PROPC)Four proportional counters in coincidence 1427500100010 were used to measure recoil protons from paraffin 1427500100011 sample for neutron flux determination. Detector used 1427500100012 for activity determination is not specified. 1427500100013 METHOD (ACTIV) 1427500100014 INC-SOURCE (D-BE) Neutron beam was produced by the action of 1427500100015 190-Mev deuterons on a 0.5 in. beryllium target. 1427500100016 Neutron beam emerged through an aluminum window in 1427500100017 the wall of the cyclotron tank with flux density of 1427500100018 the order 10E+6 to 10E+7 n/cm2/sec. 1427500100019 HISTORY (20100925C) Compiled by S.H. 1427500100020 ENDBIB 18 0 1427500100021 NOCOMMON 0 0 1427500100022 ENDSUBENT 21 0 1427500199999 SUBENT 14275002 20100925 13671427500200001 BIB 3 4 1427500200002 REACTION (6-C-12(N,2N)6-C-11,,SIG) 1427500200003 STATUS (TABLE) Data taken from text p. 263 of the reference 1427500200004 ERR-ANALYS (DATA-ERR) Total uncertainty, determined from three 1427500200005 independent measurements 1427500200006 ENDBIB 4 0 1427500200007 NOCOMMON 0 0 1427500200008 DATA 4 1 1427500200009 EN EN-ERR DATA DATA-ERR 1427500200010 MEV MEV B B 1427500200011 90.0 27.0 0.022 0.004 1427500200012 ENDDATA 3 0 1427500200013 ENDSUBENT 12 0 1427500299999 ENDENTRY 2 0 1427599999999