/*===================================================================*/ /* NRDF D1522 Data No.6 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,6; 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,6; /* 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 */ /* 2016-03-23 : Altered, MA: SF4 and DECAY-DATA: 89-AC-217 -> 89-AC-217-G */ RCT=208PB(14N,5*N)217AC; PHQ=EXC-FUNCT; DET-PARTCL=ALPHA'18'; /* '18' Alpha from 217Ac (ground state). E(alpha)=9.650+-0.010 MeV, T(1/2)=111+-7 ns */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,6; ENGY-EMT-LAB=9.65MEV'19'; HALF-LIFE=111NSEC'19'; /* '19' Alpha from 217Ac (ground state) (E(alpha)=9.650+-0.010 MeV, T(1/2)=111+-7 ns) */ CMPD=222AC; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM'20' EXC-ENGY'21' SIGMA DELTA-SIGMA (MEV) (MEV) (MB) (MB) 7.669E+01 4.118E+01 7.970E+00 +8.904E-01-1.119E+00 8.466E+01 4.915E+01 8.572E+01 +5.348E+00-7.439E+00 9.007E+01 5.456E+01 4.023E+01 +3.161E+00-2.931E+00 \END; /*===================================================================*/ |