/*===================================================================*/ /* NRDF D1848 Data No.20 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,20; D#=D1848; TITLE=/Nuclear charge distribution in proton-induced fission of 238U/; ATH=(H.UMEZAWA'1'); INST-ATH=(2JPNJAE'1'); REF=JIN; VLP=33(1971)2731; RCTS=(U(P,FISSN), U(P,FISSN)86RB, U(P,FISSN)86RB/U(P,FISSN), U(P,FISSN)132TE, U(P,FISSN)132TE/U(P,FISSN), U(P,FISSN)134CS, U(P,FISSN)134CS/U(P,FISSN), U(P,FISSN)136CS, U(P,FISSN)136CS/U(P,FISSN), U(P,FISSN)140BA, U(P,FISSN)140BA/U(P,FISSN), U(P,FISSN)148PM/U(P,FISSN)149PM, U(P,FISSN)148PM/U(P,FISSN), U(P,FISSN)160TB/U(P,FISSN)161TB, U(P,FISSN)160TB/U(P,FISSN), U(P,FISSN)//U(P,FISSN)); PHQS=(XSECTN'2', XSECTN'3', DATA'4', DATA'5', XSECTN-RATIO'6', DATA'7'); /* '2' Total chain yield */ /* '3' Formation cross section */ /* '4' Fractional independent yield */ /* '5' Fractional cummulative yield */ /* '6' Ratio of formation cross sections */ /* '7' Ratio of total chain yields */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,20; /* 2003-10-31 : Converted, Data converted from EXFOR O0571 */ RTY=FISSN; CHM=ELM'8'; /* '8' 238U:99.3% and 235U:0.68% of reagent grade was purified by the ethylether extraction, precipitated as oxalate, and then ignited to the oxide, U3O8. Uranium targets were prepared fro mthe fine powder of the purified U3O8by a centrifuge technique using liquid paraffin as adispersion medium. */ PHYS-FORM=SLD; THK-TGT=XMG/CM**2'9'; /* '9' Thickness of the uranium layer was 20-70 mg U3O8/cm2. */ BAC=AL; THK-BAC=6MG/CM**2; POL-TGT=0%; ALGN-TGT=0%; ACC=SYNCYC; INST-ACC=2JPNINS; BEAM-INTNSTY=0.1[0.2UA; POL-PRJ=0%; COINC=NO; ANT-COINC=NO; DET-SYS=(PROP-CNTR'10',NAI'11'); /* '10' End-window proportional counter to measure beta activities of samples */ /* '11' NaI(Tl) to measure 134Cs, 160Tb, and 148Pm activity */ CALB-DET=/ Proportional counters and gamma spectrometers were calibrated with activities of 148Pm and 148mPm which were standardized by the 4pi beta counting or 4pi beta-gamma coincidence measurements [H.Baba et al., J. Appl. Radiat. Isotopes 21(1970)607, H.Baba et al., J. Appl. Radiat. Isotopes 22(1971)141]. /; /* Experimental Method: - Chemical separation - Activation /* Analysis: - Decay curve analysis RCT=(U(P,FISSN)136CS/U(P,FISSN)); PHQ=DATA'46'; /* '46' Fractional independent yield */ /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,20; RSD=136CS; A=136.; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; INC-ENGY-LAB DATA1'47' DELTA-DATA1'47,48' DATA2'49' (MEV) (NODIM) (NODIM) (NODIM) 18. 0.04 +-0.01 3. 21. 0.06 +-0.01 3. 23. 0.07 +-0.01 3. 27. 0.12 +-0.02 3. 30. 0.17 +-0.03 3. 35. 0.22 +-0.02 2. 40. 0.23 +-0.02 2. 45. 0.28 +-0.05 3. 50. 0.37 +-0.05 3. 55. 0.37 +-0.06 2. 60. 0.46 +-0.06 2. \END; /*===================================================================*/ |