/*===================================================================*/ /* NRDF D0326 Data No.2 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,2; D#=D326; TITLE=/PRODUCTION OF ARGON ISOTOPES BY SPALLATION OF SC, TI, FE, CO, NI, AND CU/; PURPOSE=/ALTHOUGH THE GENERAL CHARACTERISTICS OF SPALLATION REACTIONS ARE NOW WELL KNOWN, CERTAIN ASPECTS ARE NOT YET ENTIRELY CLEAR. TWO OF THESE ARE THE SUBJECT OF THE PRESENT STUDY. (A)HOW IMPORTANT IS THE INFLUENCE OF TARGET COMPOSITION ON THE FINAL DISTRIBUTION OF SPALLATION PRODUCTS, IN THE CASE OF MEDIUM-MASS TARGETS ? (B)THE EXCITATION FUNCTIONS FOR THE SPALLATION REACTIONS INCREASE RAPIDLY BETWEEN THE REACTION THRESHOLD AND ABOUT 1 GEV, THEN TEND TOWARDS AN ASYMPTOTIC VALUE, WITH NO SIGNIFICANT VARIATION BEING OBSERVED ABOVE ABOUT 10 GEV. IT IS YET TO BE DETERMINED, HOWEVER, WHETHER THE CROSS SECTIONS GO THROUGH A MAXIMUM SOMEWHERE IN THE 1 TO 10 GEV INTERVAL./; ATH=(S.REGNIER'1'); INST-ATH=(2FR GRA'1'); REF=PR/C; VLP=20(1979)1517; RCTS=(SC(P,X)AR,TI(P,X)AR,V(P,X)AR,FE(P,X)AR,CO(P,X)AR, NI(P,X)AR,CU(P,X)AR); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,2; THK-TGT=0.01[0.05MM; BAC=AL; THK-BAC=XMG/CM**2'A'; /*@53@*/ ALGN-TGT=YES; BEAM-INTNSTY=XUA; /*@54@*/ DET-PARTCL=(AR); DET-SYS=(X'B'); /*@55@*/ THK-TGT=0.15G/CM**2; INST-ACC=3BLGBLG; INC-ENGY-RANGE=(80MEV); THK-TGT=1.5G/CM**2; INST-ACC=SAFURNE-FRONCE; INC-ENGY-RANGE=(1.05GEV); THK-TGT=0.3[0.5G/CM**2; INST-ACC=2ZZZCER; INC-ENGY-RANGE=(0.6GEV,24GEV); PHQ=(XSECTN,EXC-FUNCT,A-DSTRN,N-DSTRN,XSECTN-RATIO); /*@56@*/ /*@59@*/ RCT=TI(P,X)AR; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,2; /*@58@*/ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB DATA1'1' DATA1-ERR DATA2'2' DATA2-ERR DATA3'3' DATA3-ERR SIGMA'4' SIGMA-ERR SIGMA'5' SIGMA-ERR SIGMA'6' SIGMA-ERR SIGMA'7' SIGMA-ERR FLAG (GEV) (NODIM) (NODIM) (NODIM) (NODIM) (NODIM) (NODIM) (MB) (MB) (MB) (MB) (MB) (MB) (MB) (MB) (NODIM) 0.080 12.40 0.15 1.86 0.02 150 2 1.15 0.17 14.2 2.1 7.6 1.1 0.095 0.014 X 1.0 9.0 0.2 1.81 0.04 63 1.5 3.4 0.3 30.6 2.9 16.9 1.6 0.49 0.05 X 24.0 9.4 0.2 1.73 0.02 48 1 1.93 0.14 18.1 1.3 10.4 0.8 0.38 0.03 X \END; /*===================================================================*/ |