5-B - 11
5-B - 11 JAERI EVAL-MAY88 T.FUKAHORI
JAERI-M 89-046 DIST-SEP89
----JENDL-3.2 MATERIAL 528
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
87-03 NEWLY EVALUATED BY T.FUKAHORI (JAERI)
88-05 REVISED BY T.FUKAHORI (JAERI)
(N,D),(N,ND),(N,T),(N,NT) AND (N,N2A) ADDED
MF=1 GENERAL INFORMATION
MT=451 DESCRIPTIVE DATA AND DICTIONARY
MF=2 RESONANCE PARAMETERS
MT=151 ONLY SCATTERING RADIUS IS GIVEN.
MF=3 CROSS SECTIONS
2200 M/SEC CROSS SECTIONS AND RESONANCE INTEGRALS
2200 M/SEC RES. INTEG.
TOTAL 5.050 B -
ELASTIC 5.045 B -
CAPTURE 5.075 MB 2.542 MB
MT=1 TOTAL CROSS SECTION
BELOW 1 MEV, CALCULATED WITH THE MULTI-LEVEL BREIT-WIGNER
FORMULA AND THE RESONANCE PARAMETERS TAKEN FROM REF. /1/.
IN THE RANGE OF 1 TO 4 MEV, BASED ON THE R-MATRIX
CALCULATION WHICH WAS PERFORMED BY USING KOEHLER ET AL.'S
PARAMETERS /2/. ABOVE 4 MEV, SMOOTH CURVE WAS OBTAINED BY
FITTING TO THE EXPERIMENTAL DATA OF AUCHAMPAUGH ET AL./3/.
MT=2 ELASTIC SCATTERING CROSS SECTION
BELOW 1 MEV BASED ON THE MULTI-LEVEL BREIT-WIGNER FORMULA.
IN THE RANGE OF 1 TO 2.2 MEV, THE R-MATRIX CALCULATION WAS
ADOPTED. ABOVE 2.2 MEV, THE CROSS SECTION WAS OBTAINED BY
SUBTRACTING THE REACTION CROSS SECTIONS FROM THE TOTAL
CROSS SECTION.
MT=4 TOTAL INELASTIC SCATTERING CROSS SECTION
SUM OF MT=51-57 AND 91.
MT=16 (N,2N)B-10 CROSS SECTION
CALCULATED WITH GNASH /4/. THE OPTICAL POTENTIAL
PARAMETERS, THE LEVEL DENSITY PARAMETERS AND THE LEVEL
SCHEME ARE SHOWN IN TABLES 1-3, RESPECTIVELY.
MT=22 (N,N'ALPHA)LI-7 CROSS SECTION
CALCULATED WITH GNASH. THE OPTICAL POTENTIAL PARAMETERS,
THE LEVEL DENSITY PARAMETERS AND THE LEVEL SCHEME ARE
SHOWN IN TABLES 1-3, RESPECTIVELY.
MT=28 (N,N'P)BE-10 CROSS SECTION
BASED ON THE GNASH CALCULATION. THE PARAMETERS USED ARE
LISTED IN TABLES 1-3.
MT=29 (N,N'2ALPHA)T CROSS SECTION
BASED ON (N,N'T) CROSS SECTION OF THE GNASH CALCULATION
AND NORMALIZED TO HE PRODUCTION CROSS SECTION OF KNEFF
ET AL. /5/.
MT=32 (N,N'D)BE-9 CROSS SECTION
BASED ON THE GNASH CALCULATION. THE PARAMETERS USED ARE
LISTED IN TABLES 1-3.
MT=33 (N,N'T)BE-8 CROSS SECTION
BASED ON THE GNASH CALCULATION. THE PARAMETERS USED ARE
LISTED IN TABLES 1-3.
MT=51 INELASTIC SCATTERING
THE R-MATRIX CALCULATION WITH KOEHLER ET AL.'S PARAMETERS
WAS ADOPTED BELOW 7 MEV. ABOVE 7 MEV, THE GNASH AND DWBA
CALCULATIONS WERE PERFORMED. THE SUM OF BOTH RESULTS
WAS ADOPTED, AND NORMALIZED TO THE EXPERIMENTAL DATA OF
KOEHLER ET AL. /2/ AND GLENDINNING ET AL. /6/.
MT=52,53 INELASTIC SCATTERING
BELOW 7 MEV, BASED ON THE R-MATRIX CALCULATION WITH
THE SEARCHED PARAMETERS. ABOVE 7 MEV, THE SUM OF THE GNASH
AND DWBA CALCULATIONS WAS ADOPTED, AND FITTED TO THE
EXPERIMENTAL DATA OF GLENDINNING ET AL..
MT=54-57 INELASTIC SCATTERING
THE SUM OF RESULTS OF THE GNASH AND DWBA CALCULATIONS WAS
NORMALIZED TO BE THE RESULT OF OKTAVIAN'S DDX DATA /7/.
MT=91 CONTINUUM INELASTIC SCATTERING
ABOVE 7.2 MEV, CONTINUUM LEVELS WERE ADOPTED.
BASED ON THE GNASH CALCULATION.
MT=102 CAPTURE CROSS SECTION
CALCULATED FROM THE MULTI-LEVEL BREIT-WIGNER FORMULA.
THE DIRECT CAPTURE /1/ IS ALSO CONSIDERED.
MT=103 (N,P)BE-11 CROSS SECTION
BASED ON THE GNASH CALCULATION WITH BEING NORMALIZED TO
THE EXPERIMENTAL DATA OF STEPANCIC ET AL. /8/. THE
PARAMETERS USED ARE SHOWN IN TABLES 1-3, RESPECTIVELY.
MT=104 (N,D)BE-10 CROSS SECTION
BASED ON THE GNASH CALCULATION.
MT=105 (N,T)BE-9 CROSS SECTION
BASED ON THE GNASH CALCULATION.
MT=107 (N,ALPHA)LI-8 CROSS SECTION
THE GNASH CALCULATION WAS PERFORMED, AND NORMALIZED TO THE
EXPERIMENTAL DATA OF ANTOLKOVIC ET AL. /9/ AND
SCOBEL ET AL. /10/. THE PARAMETERS USED ARE SHOWN IN
TABLES 1-3, RESPECTIVELY.
MT=251 MU-BAR
CALCULATED FROM THE DATA IN MF=4.
MF=4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=2
THE R-MATRIX AND DWBA CALCULATIONS WERE ADOPTED BELOW
8 MEV AND ABOVE 8 MEV, RESPECTIVELY.
MT=16,22,28,29,32,33,91
ASSUMED TO BE ISOTROPIC IN THE CENTER OF MASS SYSTEM.
MT=51,52,53
BELOW 8 MEV BASED ON R-MATRIX CALCULATION. ABOVE 8 MEV,
BASED ON THE DWBA AND THE GNASH CALCULATIONS.
MT=54,55,56,57
BASED ON THE DWBA AND THE GNASH CALCULATIONS.
MF=5 ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=16,22,28,29,32,33,91
BASED ON THE GNASH CALCULATION.
MF=12-15 GAMMA-RAY DATA
BASED ON THE GNASH CALCULATION.
TABLE 1 THE OPTICAL POTENTIAL PARAMETERS
------------------------------------------------------------------
NEUTRON V = 41.8-0.005E MEV* R0= 1.40 FM A0= 0.35 FM REF.12
WS= 1.01E MEV* RI= 1.15 FM* AI= 0.50 FM
PROTON V = 66.1-0.273E MEV R0= 1.15 FM A0= 0.57 FM REF.13
WS= 1.50+0.581E MEV RI= 1.15 FM AI= 0.5 FM
VSYM = 5.5 MEV R0= 1.15 FM A0= 0.57 FM
DEUTERON V = 80.0 MEV* R0= 1.0 FM* A0= 1.0 FM* REF.14
WV= 30.0 MEV RI= 1.0 FM* AI= 0.8 FM*
VSYM = 6.0 MEV* R0= 1.0 FM* A0= 1.0 FM*
TRITON V = 103.0+20.0E MEV* R0= 0.85 FM A0= 0.70 FM REF.15
WV= 1.49E MEV* RI= 2.06 FM AI= 0.72 FM
VSYM = 8.55 MEV* R0= 0.85 FM A0= 0.70 FM
ALPHA V = 285.2-2.40E MEV* R0= 1.61 FM* A0= 0.55 FM* REF.16
WS= 16.16-0.70E MEV* RI= 1.81 FM AI= 0.65 FM
------------------------------------------------------------------
NOTE : E IS INCIDENT NEUTRON ENERGY IN LAB. SYSTEM.
* MEANS THAT PARAMETER IS MODIFIED FROM ORIGINAL ONE.
TABLE 2 THE LEVEL DENSITY PARAMETERS
---------------------------------------------------------
A(1/MEV) T(MEV) PAIR.(MEV)
---------------------------------------------------------
B-10 1.196 7.990 0.0
B-11 1.431 6.112 2.67
B-12 1.491 6.201 0.0
BE-8 1.115 9.187 5.13
BE-9 1.125 8.248 2.46
BE-10 1.088 10.029 5.13
BE-11 1.419 7.277 2.46
LI-7 1.138 7.197 2.67
LI-8 1.115 8.170 0.0
---------------------------------------------------------
TABLE 3 THE LEVEL SCHEME (ENERGY(MEV), SPIN AND PARITY) /17-18/
------------------------------------------------------------------
B-10 B-11 BE-10 BE-11 LI-7 LI-8
------------------------------------------------------------------
GS 0.0 3+ 0.0 3/2- 0.0 0+ 0.0 1/2+ 0.0 3/2- 0.0 2+
1 0.718 1+ 2.125 1/2- 3.368 2+ 0.320 1/2- 0.478 1/2- 0.981 1+
2 1.740 0+ 4.445 5/2- 5.958 2+ 4.630 7/2-
3 2.154 1+ 5.020 3/2- 5.960 1- 6.680 5/2-
4 3.587 2+ 6.743 7/2- 6.179 0+ 7.460 5/2-
5 4.774 3+ 6.792 1/2+ 6.263 2- 9.670 7/2-
6 5.110 2- 9.120 7/2+ 7.371 3- 9.850 3/2-
7 5.164 2+ 10.60 7/2+ 7.452 2+ 11.240 3/2-
8 5.180 1+ 9.270 4-
9 5.926 2+ 9.400 2+
10 6.025 4+
11 6.127 3-
12 6.561 4-
13 6.873 1-
14 7.002 2+
15 7.430 2-
16 7.467 1+
17 7.479 2+
18 7.561 0+
19 7.670 1+
20 7.819 1-
21 8.070 2+
22 8.700 2+
23 8.889 3-
24 8.895 2+
------------------------------------------------------------------
REFERENCES
1) MUGHABGHAB S.F. ET AL. : 'NEUTRON CROSS SECTIONS' VOL.1
PART A (ACADEMIC PRESS 1981, NEW YORK)
2) KOEHLER P.E. ET AL.: NUCL. PHYS. A394 (1983) 221
3) AUCHAMPAUGH G.F. ET AL.: NUCL. SCI. ENG. 69 (1979) 30
4) YOUNG P.G. ET AL.: GNASH, A PREEQUILIBRIUM,STATISTICAL
NUCLEAR-MODEL CODE FOR CALCULATION OF CROSS SECTION AND
EMISSION SPECTRA, LA-6947 (1977).
5) KNEFF D.W. ET AL.: NUCL. SCI. ENG. 92 (1986) 491
6) GLENDINNING S.G. ET AL.: BULL. AM. PHYS. SOC. 24 (1979) 656
7) TAKAHASHI, A. ET AL.: INDC(JPN)-103/L (1986)
8) STEPANCIC B.Z. ET AL.: BULL. INST. BORIS KIDRIC 17 (1966) 237
9) ANTOLKOVIC B. ET AL.: NUCL. PHYS. A325 (1979) 189
10) SCOBEL W. ET AL.: ZEITSCHRIFT F. NATURFORSCHUNG, SECTION A
25 (1970) 1406
11) COOKSON J.A. ET AL.: NUCL. PHYS. A146 (1970) 417
12) GLENDINNING S.G. ET AL.: NUCL. SCI. ENG. 80 (1982) 256
13) WATSON B.A. ET AL.: PHYS. REV. 182 (1969) 977
14) MILJANIC D. ET AL.: NUCL. PHYS. A176 (1971) 110
15) HERLING G.H. ET AL.: PHYS. REV. 178 (1969) 178
16) MATSUKI S. ET AL.: J. PHYS. SOC. JAPAN 26 (1969) 1344
17) AJZENBERG-SELOVE F. : NUCL. PHYS. A413 (1984) 1
18) AJZENBERG-SELOVE F. : IBID. A433 (1985) 1