/*===================================================================*/ /* NRDF D1749 Data No.4 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,4; D#=D1749; TITLE=/ Effects of nuclear deformation on fusion probability in the reactions of 82Se+natCe and 76Ge+150Nd near the Coulomb barrier /; PURPOSE=/ To test the supposition that the 76Ge+150Nd system exhibits larger fusion probability than the system consisting of spherical colliding nuclei whose Z1Z2 value is close to that of 76Ge+150Nd /; ATH=(K.NISHIO'1', H.IKEZOE'1', S.MITSUOKA'1', K.SATOU'1', S.C.JEONG'2'); INST-ATH=(2JPNJAE'1', 2JPNKEK'2'); /* '1' Advanced Science Research Center */ /* '2' Institute of Particle and Nuclear Studies */ REF=PR/C; VLP=63(2001)044610; RCTS=(CE(82SE,X)214TH, CE(82SE,X)219U, CE(82SE,X)215TH, CE(82SE,X)213AC, CE(82SE,X)220U, CE(82SE,X)216TH, CE(82SE,X)221U, CE(82SE,X)217TH, CE(82SE,X)218PA, CE(82SE,X)214AC, CE(82SE,X)219PA, CE(82SE,X)215AC, CE(82SE,X)220PA, CE(82SE,X)216AC); PHQS=XSECTN; /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,4; /* 2002-02-10 : Converted, Data converted to EXFOR E1749. */ /* 2003-06-13 : Altered */ PHQ=XSECTN; ENR=NAT'3'; /* '3' Abundance of 140Ce and 142Ce are 88.5 and 11.1%. */ CHM=ELM; PHYS-FORM=SLD; THK-TGT=0.425MG/CM**2; BAC=AL; THK-BAC=XMG/CM**2'4'; /* '4' 1.5 micro-meter thick aluminium foil */ POL-TGT=0%; ALGN-TGT=0%; ACC=VDGT'5'; /* '5' JAERI-tandem booster accelerator */ INST-ACC=2JPNJAE; INC-ENGY-CM=215.0[253.0MEV; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=(MAG'6',PS-SSD'7',SBD'8',TOF'9'); /* '6' JAERI recoil mass separater (JAERI-RMS) */ /* '7' Double sided position-sensitive strip detector (DPSD). Energy calibration of the DPSD was made using known alpha transition energy from 216Th(7.921MeV) which were produced in the present reactions. */ /* '8' To monitor the beams, set at 45 deg direction in the target chamber to determine the absolute values of the evaporation residue cross sections. */ /* '9' Two-dimensional spectrum of the energy versus TOF signal was used to distinguish evaporation residue (ER) implantation events from the subsequent alpha decays, which generate no TOF signal */ ERS-DET=70KEV'10'; /* '10' typical value for DPSD */ EFCN-DET=/ Estimated transport efficiency of evaporation residue to the focal plane detectors through the JAERI-RMS is estimated. The values are 0.22-0.33 for alpha-xn channels and 0.29-0.40 for xn channel. /; ANL=STATIST-MODEL'11'; /* '11' HIVAP, See [W.Reisdorf and M.Schadel, ZP/A343(1992)47]. /* Experimental Method: - Time-of-flight (Two-dimensional spectrum of the energy versus TOF signal was used to distinguish evaporation residue (ER) implantation events from the subsequent alpha decays, which generate no TOF signal) RCT=(CE(82SE,X)221U+CE(82SE,X)217TH); DET-PARTCL=(ALPHA'23',ALPHA'22'); /* '23' Alpha from 213Ra */ /* '22' Alpha from 217Th */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,4; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM XSECTN XSECTN'24' DELTA-XSECTN'24' (MEV) (NB) (NB) (NB) 215.0 17.3 X +18.0-13.2 220.0 11.2 X +11.6-8.5 223.0 X 4.7 +X-X 228.0 8.4 X +11.0-7.3 230.0 10.0 X +10.4-7.7 233.0 25.6 X +33.5-22.2 238.0 21.6 X +28.2-18.7 243.0 X 12.5 +X-X 245.0 X 2.9 +X-X 253.0 X 8.2 +X-X \END; /*===================================================================*/ |