/*===================================================================*/ /* NRDF D1522 Data No.2 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,2; D#=D1522; TITLE=/ Ground-state alpha-decay of N=128 isotones 216Ra, 217Ac and 218Th /; PURPOSE=/ To measure the alpha-decay properties of N=128 isotones having Z>=84 /; ATH=(T.NOMURA'1', K.HIRUTA'1', T.INAMURA'1', M.ODERA'1'); INST-ATH=(2JPNIPC'1'); /* '1' Cyclotron Laboratory */ REF=NP/A; VLP=217(1973)253; RCTS=(208PB(12C,3*N)217RA, 208PB(12C,4*N)216RA, 208PB(12C,5*N)215RA, 209BI(14N,5*N)218TH, 208PB(14N,5*N)217AC, 207PB(14N,4*N)217AC, 207PB(14N,X)213FR); PHQS=(EXC-FUNCT, ANGL-DSTRN); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,2; /* 2005-09-14 : Converted, Kc + Sr + On. Converted to EXFOR E1522 /* 2005-11-03 : Altered, Ot + Sr. Re-digitized */ /* 2016-03-23 : Altered, MA: Modified REACTION and DECAY-DATA in 007 */ ENR=>95%; CHM=ELM; PHYS-FORM=SLD; THK-TGT=[1.0MG/CM**2'2'; /* '2' Thinner targets used when good energy resolution desired */ BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=CYC; INST-ACC=2JPNIPC; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=SBD'3'; /* '3' To detect alpha particle */ RCT=208PB(12C,4*N)216RA; PHQ=EXC-FUNCT; INC-ENGY-LAB-RANGE=65[90MEV; DET-PARTCL=ALPHA'6'; /* '6' Alpha from 216Ra. E(alpha)=9.349+-0.008 MeV, T(1/2)=182+-10 ns */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,2; ENGY-EMT-LAB=9.35MEV'7'; HALF-LIFE=182NSEC'7'; /* '7' Alpha from 216Ra (E(alpha)=9.349+-0.008 MeV, T(1/2)=182+-10 ns) */ /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB XSECTN DELTA-XSECTN (MEV) (MB) (MB) 6.506E+01 7.379E+00 +1.091E+00-9.505E-01 7.104E+01 2.115E+02 +9.948E+00-1.135E+01 7.959E+01 2.565E+02 +9.608E+00-1.377E+01 8.557E+01 8.204E+01 +3.859E+00-4.403E+00 9.003E+01 9.633E+00 +1.323E+00-1.085E+00 \END; /*===================================================================*/ |