ENTRY 21405 19800303 00002140500000001 SUBENT 21405001 19800303 00002140500100001 BIB 14 27 2140500100002 INSTITUTE (2UK ALD) 2140500100003 REFERENCE (J,JIN,13,5,60) 2140500100004 AUTHOR (L.P.O'CONNOR,J.L.PERKIN) 2140500100005 TITLE -CROSS SECTIONS FOR THE REACTIONS RA-226(N,2N) AND 2140500100006 RA-226(N,3N) WITH 14.5 MEV NEUTRONS -. 2140500100007 FACILITY (VDG ) VAN DER GRAAFF. 2140500100008 INC-SOURCE (D-T ) DEUTERIUM BEAM ON TRITIUM TARGET GIVING 2140500100009 NEUTRONS OF ENERGY 14.5 +- 0.3 MEV. 2140500100010 SAMPLE .RADIUM, AS A SOLUTION OF ABOUT 4 MG OF CHLORIDE 2140500100011 IN DILUTE HCL IN A PERSPEX CAPSULE. 2140500100012 METHOD (ACTIV) ACTIVATION. 2140500100013 DETECTOR (PROPC) 4 PI PROPORATIONAL COUNTER FOR BETAS FROM 2140500100014 PB-209. 2140500100015 (IOCH ) GRIDDED IONISATION CHAMBER FOR ALPHAS FROM 2140500100016 BI-212. 2140500100017 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) NO VALUE GIVEN. 2140500100018 STATUS .TEXT, PAGE 12. 2140500100019 HISTORY (800229C) 2140500100020 (800303E) 2140500100021 CORRECTION .CORRECTED FOR PREFFERENTIAL LOSS OF BISMUTH IN 2140500100022 SEPERATION OF REACTION PRODUCTS, AND FOR NATURALLY 2140500100023 OCCURING RA-224. 2140500100024 ERR-ANALYS .STANDARD DEVIATION ERRORS CALCULATED FROM 2140500100025 UNCERTAINTIES IN WEIGHT OF RADIUM SAMPLE (3 PC), THE 2140500100026 CHEMICAL YIELDS OF PRODUCTS (5 PC), COUNTER 2140500100027 EFFICIENCY (2 PC), COUNTING STATISTICS (10 PC), THE 2140500100028 NEUTRON FLUX (5 PC), AND SEPERATION TIME (10 PC). 2140500100029 ENDBIB 27 0 2140500100030 COMMON 2 3 2140500100031 EN EN-RSL 2140500100032 MEV MEV 2140500100033 1.4500E+01 3.0000E-01 2140500100034 ENDCOMMON 3 0 2140500100035 ENDSUBENT 34 0 2140500199999 SUBENT 21405002 19800303 00002140500200001 BIB 4 4 2140500200002 REACTION (88-RA-226(N,2N)88-RA-225,,SIG) CROSS SECTION. 2140500200003 ANALYSIS .ISOLATION OF PB-209 FROM DECAY CHAIN OF RA-225. 2140500200004 DECAY-DATA (82-PB-209,3.3HR,B-) 2140500200005 STATUS .TEXT, PAGE 12. 2140500200006 ENDBIB 4 0 2140500200007 NOCOMMON 0 0 2140500200008 DATA 2 1 2140500200009 DATA DATA-ERR 2140500200010 B B 2140500200011 1.6000E+00 2.0000E-01 2140500200012 ENDDATA 3 0 2140500200013 ENDSUBENT 12 0 2140500299999 SUBENT 21405003 19800303 00002140500300001 BIB 4 5 2140500300002 REACTION (88-RA-226(N,3N)88-RA-224,,SIG) CROSS SECTION. 2140500300003 ANALYSIS .DERIVED FOR ALPHA ACTIVITY OF BI-212 IN THE DECAY 2140500300004 CHAIN OF RA-224. 2140500300005 DECAY-DATA (83-BI-212,60.5MIN,A) 2140500300006 STATUS .TEXT,PAGE 12. 2140500300007 ENDBIB 5 0 2140500300008 NOCOMMON 0 0 2140500300009 DATA 2 1 2140500300010 DATA DATA-ERR 2140500300011 B B 2140500300012 6.3000E-01 7.0000E-02 2140500300013 ENDDATA 3 0 2140500300014 ENDSUBENT 13 0 2140500399999 ENDENTRY 3 0 2140599999999