/*===================================================================*/ /* NRDF D0327 Data No.7 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,7; D#=D327; TITLE=/DIFFERENTIAL RANGES AND ANGULAR DISTRIBUTIONS OF BA FRAGMENTS FROM THE INTERACTION OF 238U WITH 11.5-GEV PROTONS/; PURPOSE=/AS SHOWN IN FIGURE OF Z-DEPENDENCE OF THE ISOBARIC THICK-TARGET RANGES AND CROSS SECTIONS OF A=131 NUCLIDES FROM THE INTERACTION OF 238U WITH 11.5-GEV PROTONS, THE RANGE OF 131BA LIES MIDWAY BETWEEN THE FISSION AND DEEP SPALLATION RANGES. THE MOST OBVIOUS EXPLANATION OF THIS FACT IS THAT AT A=131 THE TRANSITION BETWEEN THESE PROCESSES OCCURS BETWEEN Z=55 AND 57, WITH COMPARABLE CONTRIBUTIONS OCURRING AT Z=56. THIS EXPLABATUIB ASSUMES THAT ONLY TWO MECHANISMES ARE OPERATIVE AND THIS IS FAR FROM CERTAIN. THE RESULTS PRESENTED HERE PERMIT A DETERMINATION OF HOW THE ANGULAR DISTRIBUTION AND THE WIDTH OF THE SPECTRUM, QUANTITIES THAT CANNOT BE INFERRED FROM THICK-TARGET RECOIL STUDIES, CHANGE AS THE TRANSITION BETWEEN MECHANISMS IS ACCHIEVED./; ATH=(N.T.PORILE'1',S.PANDIAN'1',H.KLONK'1',C.R.RUDY'1',E.P.STEINBERG'2' INST-ATH=(1USAPUR'1',1USAANL'2'); REF=PR/C; VLP=19(1979)1832; RCTS=(238U(P,X)128BA,238U(P,X)131LA,238U(P,X)131BA,238U(P,X)135BA, 238U(P,X)140BA); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,7; RCT=(238U(P,X)128BA,238U(P,X)131LA,238U(P,X)131BA,238U(P,X)135BA, 238U(P,X)140BA); CHM=UF4; THK-TGT=100[300MU-M; BAC=AL; THK-BAC=20MU-M; ACC=(SYN); INST-ACC=1USAANL; INC-ENGY-RANGE=(11.5GEV'55'); /*@55@*/ DELTA-INC-ENGY=XKEV; ERS-PRJ=XKEV; BEAM-INTNSTY=XUA; POL-PRJ=NO; DET-PARTCL=(GAMMA); DET-SYS=(GE(LI)); /*@56@*/ /*@57@*/ BAC=X'54'; DET-PARTCL=(X); PHQ=(Z-DSTRN,X'60'); /*@60@*/ /*@61@*/ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,7; INC-ENGY-LAB=11.5GEV; THTL=90DEG; /*@62@*/ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; A Z DATA'6' DATA'7' DATA-ERR AVER-ENGY DATA'8' DATA'9' (NODIM) (NODIM) (NODIM) (MG/CM**2) (MB/CM**2) (MEV) (UNIT'2') (UNIT'2') 128 56'4' -0.36 0.845 0.006 22.1 68.2 110 131 57'4' -3.60 0.880 0.024 22.7 70.2 80 131 56'4' -3.03 0.947 0.007 26.0 74.4 130 131 56'5' -1.73 1.058 0.017 30.0 80.6 130 135 56'5' -0.40 1.741 0.008 59.0 125 35 140 56'4' 2.30 1.981 0.009 71.1 140 31 \END; /*===================================================================*/ |