/*===================================================================*/ /* NRDF D0212 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; D#=D212; TITLE=/THRESHOLD EFFECTS IN PROTON-INDUCED REACTIONS ON COPPER/; PURPOSE=/THE BEHAVIOR OF NUCLEAR REACTION CROSS SECTIONS NEAR THRESHOLDS IS AN ESPECIALLY SENSITIVE TEST OF ABILITY OF THE HAUSER-FESHBACH STATISTICAL MODEL TO PREDICT THE ENERGY DEPENDENCE OF REACTION CROSS SECTIONS. THERE SHOLD BE A DROP IN CROSS SECTION (WIGNER CUSP) FOR ALREADY OPEN CHANNELS WHEN A NEW CHANNEL OPENS. THESE CUSPS MIGHT BE MOST READILY OBSERVED IN THE VICINITY OF S-WAVE NEUTRON THRESHOLDS./; /*@3@*/ ATH=(Z.E.SWITKOWSKI'1',J.C.P.HEGGIE'1',F.M.MANN'2'); INST-ATH=(3AULAML'1',1USAHED'2'); REF=AUJ; VLP=31(1978)253; RCTS=(65CU(P,N)65ZN, 63CU(P,N)63ZN, 65CU(P,GAMMA)65ZN, 63CU(P,GAMMA)64ZN,65CU(P,ALPHA)62NI,63CU(P,ALPHA)60NI); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,4; /* 2007-03-05 N.OTUKA: ATH and INST-ATH corrected */ ACC=(X'1'); /*@5@*/ INST-ACC=3AULAML; INC-ENGY-LAB-RANGE=1.2MEV(0.1MEV)3.3MEV; INC-ENGY-RANGE=1.2MEV(0.05MEV)1.8MEV; BEAM-INTNSTY=0.2[0.5UA; POL-PRJ=NO; RCT=X(P,ALPHA)X; ENR=X%'1'; /*@6@*/ CHM=ELM; THK-TGT=0.320MG/CM**2; BAC=SELF; INC-ENGY-LAB-RANGE=1.5MEV(0.1MEV)4.6MEV'1'; /*@8@*/ ERS-PRJ=XKEV'1'; /*@9@*/ BEAM-INTNSTY=0.3UA; /*@10@*/ DET-PARTCL=(P,ALPHA); DET-SYS=(SI'1'); /*@7@*/ /*@11@*/ ANL=(OPT-MODEL,STATIST-MODEL'4',X'1'); /*@19@*/ /*@24@*/ PHQ=(EXC-FUNCT,ANGL-DSTRN'2',XSECTN-LEVEL'2',OPT-POTL-PARA); /*@20@*/ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; CMPD=64ZN; RSD=60NI; EXC-ENGY=1.33MEV; J-PI=2+; QVL=3.76MEV; /*@21@*/ /*FIG.3-(C)*/ /* D212 FIG 3-(C) */ /* SER#= 4 */ /* XSCALE=LINEAR YSCALE=LOG */ /* XMAX= 4.600E+00 YMAX= 1.000E+02 */ /* XMIN= 1.000E+00 YMIN= 1.000E-02 */ /* FOLLOWING DATA ARE TAKEN FROM GRAPH */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM SIGMA DELTA-SIGMA (MEV) (MB) (MB) 3.31 4.51E-01 7.93E-02 3.43 7.62E-01 1.08E-01 3.52 8.22E-01 8.23E-02 3.62 1.14E+00 XXXXXXXX 3.72 1.80E+00 XXXXXXXX 3.82 1.96E+00 XXXXXXXX 3.86 2.28E+00 XXXXXXXX 3.91 2.46E+00 XXXXXXXX 3.95 2.58E+00 XXXXXXXX 4.00 2.54E+00 XXXXXXXX 4.05 3.28E+00 XXXXXXXX 4.10 3.54E+00 XXXXXXXX 4.14 3.75E+00 XXXXXXXX 4.20 4.21E+00 XXXXXXXX 4.22 3.64E+00 XXXXXXXX 4.28 3.71E+00 XXXXXXXX 4.34 4.50E+00 XXXXXXXX 4.38 4.81E+00 XXXXXXXX 4.44 4.25E+00 XXXXXXXX 4.48 5.44E+00 XXXXXXXX \END; /*===================================================================*/ |