ENTRY 21131 19800328 00002113100000001 SUBENT 21131001 19800328 00002113100100001 BIB 14 38 2113100100002 INSTITUTE (2ITYCAT) 2113100100003 REFERENCE (J,NP,48,686,6311) 2113100100004 AUTHOR (P.CUZZOCREA,G.PAPPALARDO) 2113100100005 TITLE -THE P-31(N,A)AL-28 EXCITATION FUNCTION UP TO 5 MEV 2113100100006 NEUTRON ENERGY- 2113100100007 FACILITY (VDG ) 2 MEV VAN DE GRAAFF. 2113100100008 INC-SOURCE (D-D ) DEUTERON BEAM OF ABOUT 4 MICRO-AMP AT 2 MEV 2113100100009 INCIDENT ON D2-O ICE TARGET. NEUTRON ENERGY 2113100100010 VARIED USING DIFFERENT ANGLES. 2113100100011 SAMPLE .DISCS OF RED PHOSPHOROUS 28 MM IN DIAMETER AND 2.7 2113100100012 MM THICK PRESSED IN CYLINDRICAL COPPER CONTAINERS 2113100100013 1.5 MM THICK. 2113100100014 METHOD (ACTIV) ACTIVATION. 2113100100015 DETECTOR (GEMUC) PHILIPS 18516 GEIGER-MUELLER COUNTER TO COUNT 2113100100016 DECAY BETAS WITH 18518 GUARD COUNTER IN ANTI- 2113100100017 COINCIDENCE TO REDUCE BACKGROUND. 2113100100018 (CSICR) PROTON RECOIL COUNTER CONSISTING OF THIN 2113100100019 POLYTHENE FOIL AND 0.2 MM CSI CRYSTAL TO 2113100100020 MONITOR THE NEUTRON FLUX. 2113100100021 MONITOR (15-P-31(N,P)14-SI-31,,SIG) RATIO OF (N,A) AND (N,P) 2113100100022 CROSS-SECTIONS OF P-31 MEASURED AT 5.04 MEV. 2113100100023 EXCITATION FUNCTION THE NORMALIZED USING THE 2113100100024 (N,P) VALUE OF CUZZOCREA ET AL.,NUOVO CIM., 2113100100025 18,(1960),671. 2113100100026 STATUS (NDD ) FROM NEUDADA. GRAPHICAL DATA IN FIG.1 OF THE 2113100100027 PUBLICATION. 2113100100028 HISTORY (790927C) 2113100100029 (791112E) 2113100100030 CORRECTION .BACKGROUND OF SI-31 ACTIVITY BY MAKING MEASUREMENTS 2113100100031 IN TWO TIME PERIODS AFTER IRRADIATION. 2113100100032 .RELATIVE CROSS-SECTION CURVE CORRECTED BY VARIATION 2113100100033 OF NEUTRON FLUX WITH ANGLE. 2113100100034 .SELF-ABSORPTION OF SAMPLE, OTHER ABSORPTION EFFECTS 2113100100035 AND DIFFERENCE IN MEAN LIVES OF AL-28 AND SI-31 IN 2113100100036 NORMALIZATION. 2113100100037 ERR-ANALYS .LARGE STATISTICAL ERROR DUE TO LOW (N,A) CROSS- 2113100100038 SECTION AND PRESENCE OF SI-31 ACTIVITY FROM (N,P). 2113100100039 .EXPERIMENTAL CURVE OBTAINED BY AVERAGING OVER 5 RUNS. 2113100100040 ENDBIB 38 0 2113100100041 COMMON 2 3 2113100100042 EN-RSL EN-NRM 2113100100043 MEV MEV 2113100100044 1.5000E-01 5.0400E+00 2113100100045 ENDCOMMON 3 0 2113100100046 ENDSUBENT 45 0 2113100199999 SUBENT 21131002 19791112 00002113100200001 BIB 3 3 2113100200002 REACTION (15-P-31(N,A)13-AL-28,,SIG) 2113100200003 DECAY-DATA (13-AL-28,2.31MIN,B,2860.) FROM LITERATURE. 2113100200004 STATUS (NDD ) VALUES FROM NEUDADA. 2113100200005 ENDBIB 3 0 2113100200006 NOCOMMON 0 0 2113100200007 DATA 3 20 2113100200008 EN DATA DATA-ERR 2113100200009 MEV MB MB 2113100200010 3.0000E+00 1.0000E-02 1.5000E-01 2113100200011 3.4800E+00 1.0000E-01 1.0000E-01 2113100200012 3.6800E+00 3.5000E-01 2.0000E-01 2113100200013 3.7000E+00 1.0000E-02 1.7000E-01 2113100200014 3.7300E+00 5.8000E-01 2.2000E-01 2113100200015 3.7800E+00 5.0000E-01 1.8000E-01 2113100200016 3.8000E+00 1.0000E-01 1.2000E-01 2113100200017 3.8400E+00 1.0000E-02 1.7000E-01 2113100200018 3.9800E+00 7.0000E-02 1.6000E-01 2113100200019 4.0600E+00 6.4000E-01 3.9000E-01 2113100200020 4.2200E+00 8.0000E-01 3.6000E-01 2113100200021 4.3200E+00 5.0000E-01 1.2000E-01 2113100200022 4.4200E+00 5.2000E-01 1.8000E-01 2113100200023 4.5800E+00 6.9000E-01 8.0000E-02 2113100200024 4.7400E+00 1.4500E+00 1.0000E-01 2113100200025 4.8400E+00 1.7000E+00 7.0000E-02 2113100200026 4.9400E+00 2.1000E+00 1.0000E-01 2113100200027 5.0100E+00 2.2100E+00 9.0000E-02 2113100200028 5.0600E+00 2.3000E+00 8.0000E-02 2113100200029 5.0900E+00 2.4000E+00 5.0000E-02 2113100200030 ENDDATA 22 0 2113100200031 ENDSUBENT 30 0 2113100299999 ENDENTRY 2 0 2113199999999