/*===================================================================*/ /* NRDF D1749 Data No.5 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,5; 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,5; /* 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)218PA+CE(82SE,X)214AC); DET-PARTCL=(ALPHA'25',ALPHA'26'); /* '26' Alpha from 210Fr */ /* '25' Alpha from 214Ac */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,5; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-CM XSECTN XSECTN'27' DELTA-XSECTN'27' (MEV) (NB) (NB) (NB) 215.0 X 3.9 +X-X 220.0 X 3.9 +X-X 223.0 X 1.8 +X-X 228.0 X 1.7 +X-X 230.0 X 3.2 +X-X 233.0 13.3 X +17.4-11.5 238.0 22.4 X +20.2-15.8 243.0 12.8 X +16.8-11.1 245.0 39.3 X +25.5-23.3 253.0 55.3 X +45.2-37.1 \END; /*===================================================================*/ |