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/* NRDF D1848 Data No.23 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,23;
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,23;
/* 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)148PM/U(P,FISSN)149PM);
PHQ=XSECTN-RATIO'57';
/* '57' Ratio of formation cross sections */
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,23;
RSD=(148PM,149PM);
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
INC-ENGY-LAB XSECTN-RATIO DELTA-XSECTN-RATIO'58' DATA1'59'
(MEV) (NODIM) (NODIM) (NODIM)
21. 0.00001 +-0.00001 1.
23. 0.00015 +-0.00007 1.
27. 0.00026 +-0.00004 2.
30. 0.00048 +-0.00005 2.
35. 0.00106 +-0.00006 2.
40. 0.00215 +-0.00011 2.
45. 0.004 +-0.0002 2.
50. 0.0069 +-0.0004 2.
55. 0.0104 +-0.0006 2.
60. 0.016 +-0.0008 2.
\END;
/*===================================================================*/
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