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/* NRDF D1659 Data No.11 */
/*===================================================================*/
/* Bibliography */
/*===================================================================*/
\\BIB,11;
D#=D1659;
TITLE=/Two deformation paths in proton-induced fission of 232Th/;
PURPOSE=/Accurate measurements of complementary fission
fragmentvelocities in the proton-induced fission of 232th/;
ATH=(Y.NAGAME'1', I.NISHINAKA'1', K.TSUKADA'1', Y.OURA'1',
S.ICHIKAWA'1', H.IKEZOE'1', Y.L.ZHAO'2', K.SUEKI'2',
H.NAKAHARA'2', M.TANIKAWA'3', T.OHTSUKI'4', H.KUDO'5',
Y.HAMAJIMA'6', K.TAKAMIYA'7', Y.H.CHUNG'8');
INST-ATH=(2JPNJAE'1', 2JPNTMU'2', 2JPNTOK'3', 2JPNTOH'4', 2JPNNII'5',
2JPNJPN'6', 2JPNOSA'7', 3KORKOR'8');
/* '2' Department of Chemistry */
/* '3' Department of Chemistry */
/* '4' Laboratory of Nuclear Science */
/* '5' Department of Chemistry */
/* '6' Department of Chemistry, Kanazawa University, Kanazawa */
/* '7' Department of Chemistry */
/* '8' Department of Chemistry, Hallym University, Chuncheon */
REF=PL/B;
VLP=387(1996)26;
RCTS=232TH(P,FISSN);
PHQS=(A-DSTRN'9', AVER-KIN-ENGY'10', ENGY-SPEC'11', ENGY-SPEC'12',
ENGY-SPEC'13', ENGY-SPEC'14', ENGY-SPEC'15');
/* '9' Heavy fragment mass distribution */
/* '10' average total kinetic energy */
/* '11' total kinetic energy distribution (A=126) */
/* '12' total kinetic energy distribution (A=128) */
/* '13' total kinetic energy distribution (A=130) */
/* '14' total kinetic energy distribution (A=132) */
/* '15' total kinetic energy distribution (A=134) */
/*===================================================================*/
/* Experimental Conditions */
/*===================================================================*/
\\EXP,11;
/* 2003-11-22 : Converted, Data converted to EXFOR E1659 and EXFOR
O0383. */
RTY=FISSN;
CHM=ELM;
PHYS-FORM=SLD;
THK-TGT=0.07MG/CM**2;
BAC=C;
THK-BAC=0.02MG/CM**2;
POL-TGT=0%;
ALGN-TGT=0%;
ACC=VDGT;
INST-ACC=2JPNJAE;
BEAM-INTNSTY=500[800NA;
POL-PRJ=0%;
DET-PARTCL=X'16';
/* '16' Fission Fragments */
COINC=NO;
ANT-COINC=NO;
DET-SYS=(MCPLT'17',SBD'18',MCPLT'19',PPAC'20');
/* '17' Placed at theta(lab)=50deg. Used as start and stop ToF
(ToF1) detectors with carbon foil (30-micro gram/cm2). The
flight path and solid angle are 55 cm and 0.17 msr,
respectively. */
/* '18' Placed behind the stop MCPD. Used for stop and energy
signals. */
/* '19' Placed at theta(lab)=130deg. Used to deliver start ToF
signal (ToF2) to detect complementary fragments of ToF1. The
flight path and solid angle are 50 cm and 32 msr,
respectively. */
/* '20' Used to deliver stop signal of ToF (ToF2). */
ERS-DET=<2.5MEV'21';
/* '21' for total kinetic energy */
CALB-DET=/ Velocity calibration was performed using the 240 MeV 127I
beam to bombard thin (70-100 micro-gram/cm2) calibration
targets, natAg, natIn, natSb, and 209Bi. Each target was
evaporated on 30 micro-gram/cm2 thick carbon foils. The
recoil nuclei and the elastically scattered 127I ions were
detected with the present ToF system. /;
/* Experimental Method:
- Time-of-flight (To measure fission fragment velocities)
- Beam current integrated (The average beam current was 500-800
nA.)
RCT=232TH(P,FISSN);
PHQ=ENGY-SPEC'70';
/* '70' total kinetic energy distribution (A=134) */
INC-ENGY-LAB=14.7MEV;
/*===================================================================*/
/* Descriptive Parameters */
/*===================================================================*/
\\DATA,11;
INC-ENGY-LAB=14.7MEV;
EMT=X'71';
/* '71' Fission fragments */
A=134;
DELTA-TOT-KIN-ENGY=0.5MEV'72';
/* '72' Data-point reader uncertainty */
DELTA-COUNTS=0.5ARB'73';
/* '73' Data-point reader uncertainty */
/*===================================================================*/
/* Data Table */
/*===================================================================*/
\DATA;
TOT-KIN-ENGY'74' COUNTS'75'
(MEV) (ARB)
109.9 2.1
111.9 2.1
114. 2.1
116. 2.1
118.7 2.1
122.3 2.1
124.7 2.
128.4 5.3
131.1 5.2
133.7 6.3
135.8 7.4
138.4 8.4
140.1 12.7
141.8 15.9
144.5 18.1
146.5 28.8
148.2 33.1
149.9 37.4
152.3 51.4
154. 67.5
156. 69.7
158.1 91.2
160.2 110.6
162.2 121.3
165. 156.8
167. 155.7
168.7 163.3
171.1 189.1
173.1 196.6
175.4 181.5
176.4 186.9
179.5 181.5
180.7 147.
182.7 126.6
185.6 97.5
187.2 73.8
189.2 56.5
191.5 33.9
193.8 24.2
195.1 18.8
197.8 13.4
200.8 9.1
\END;
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