47-Ag-107
47-AG-107 JAERI EVAL-MAR87 LIU T.J.,T.NAKAGAWA.,K.SHIBATA
DIST-SEP89 REV2-FEB94
----JENDL-3.2 MATERIAL 4725
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
87-03 NEW EVALUATION FOR JENDL-3/1/
87-07 COMPILED BY K.SHIBATA
94-02 JENDL-3.2 WAS MADE BY JNDC FPND W.G.
***** MODIFIED PARTS FOR JENDL-3.2 ********************
(2,151) RESOLVED RESONANCE PARAMETERS
(3,2), (3,3), (3,4), (3,51-54), (3,56-59), (3,61-66)
CURVES OF INELASTIC SCATTERING CROSS SECTIONS
WERE SMOOTHED BY ADDING INTERPOLATED VALUES AT
SEVERAL ENERGY POINTS.
***********************************************************
MF=1 GENERAL INFORMATION
MT=451 COMMENTS AND DICTIONARY
MF=2 RESONANCE PARAMETERS
MT=151
RESOLVED RESONANCE PARAMETERS (BELOW 7.0095 KEV)
RESOLVED RESONANCE PARAMETERS (BELOW 7.0095KEV) FOR
JENDL-3.1 ARE THE SAME AS THOSE OF JENDL-2, WHICH WERE MADE BY
NAKAJIMA /2/ ON THE BASIS OF EXPERIMENTAL DATA BY MOXON AND
RAE /3/, GARG ET AL./4/, ASGHAR ET AL./5/, MURADJAN AND
ADAMCHUK /6/, DE BARROS ET AL./7/, PATTENDEN AND JOLLY /8/,
MACKLIN /9/ AND MIZUMOTO ET AL./10/. THERE WERE NO NEW
EXPERIMENTAL DATA AVAILABLE SINCE JENDL-2 EVALUATION. ONLY
TOTAL SPIN J AND ANGULAR MOMENTUM L OF SOME RESONANCES WAS
ESTIMATED WITH A RANDOM NUMBER METHOD AND A METHOD OF
BOLLINGER AND THOMAS/11/, RESPECTIVELY.
THE CAPTURE CROSS SECTION OF JENDL-3.1 BETWEEN 1.3 AND 2.6
KEV IS TOO LOW COMPARED WITH INTERPOLATED VALUES FROM THE
LOWER AND HIGHER ENERGY REGIONS. TO COMPENSATE THE LOWER
CAPTURE CROSS SECTION, P-WAVE RESONANCES WITH A CAPTURE AREA
OF 0.04 EV WERE ADDED EVERY 40 EV BETWEEN 1.28 AND 2.04 KEV,
AND EVERY 15 EV BETWEEN 2.04 AND 2.64 KEV. THE OTHER DATA ARE
THE SAME AS JENDL-3.1, EXCEPT FOR NEUTRON WIDTH WHICH WAS
MODIFIED SO AS TO REPRODUCE THE CAPTURE AREA MEASURED BY
MACKLIN/9/.
UNRESOLVED RESONANCE PARAMETERS (7.0095 - 100 KEV)
THE PARAMETERS WERE DETERMINED WITH THE ASREP CODE /12/ TO
REPRODUCE THE CAPTURE AND TOTAL CROSS SECTIONS, WHICH WERE
BASED ON EXPERIMENTAL DATA /13, 14/ AND ADJUSTED FOR
CONSISTENCE BETWEEN THE DATA OF THE NATURAL ELEMENT AND ITS
ISOTOPES. THE TYPICAL PARAMETERS ARE :
S0 = (0.344-0.516)E-4, S1 = (3.5-4.5)E-4, S2= 0.53E-4,
D-OBS= (18.5-22.8)EV, R=6.54FM
CALCULATED 2200-M/S CROSS SECTIONS AND RES. INTEGRALS (BARNS):
2200 M/S RES. INTEG.
TOTAL 46.310 -
ELASTIC 7.687 -
CAPTURE 38.623 104
MF=3 NEUTRON CROSS SECTIONS
MT=1,102 TOTAL, CAPTURE
BELOW 100 KEV, RESONANCE PARAMETERS WERE GIVEN. NO BACKGROUND
CROSS SECTIONS ARE ADOPTED. ABOVE 100 KEV, CROSS SECTIONS WERE
EVALUATED ON THE BASIS OF EXPERIMENTAL DATA AND THEORETICAL
CALCULATIONS. THE MAIN DATA WERE TAKEN FROM THE WORKS OF
DUKEREVICH ET AL. /15/, SMITH ET AL. /16/ FOR TOTAL CROSS
SECTOIN AND MIZUMOTO ET AL. /12/, MACKLIN ET AL. /9/ FOR CAPTURE
CROSS SECTION. THE DATA WERE FITTED WITH SPLINE FUNCTION
/17/,AND WERE ADJUSTED FOR CONSISTENCE BETWEEN THE NATURAL
ELEMENT AND ITS ISOTOPES.
MT=2 ELASTIC
ELASTIC = TOTAL - NONELASTIC
MT=3 NONELASTIC
SUM OF MT=4,16,17,22,28,102,103,107
MT=4 TOTAL INELASTIC
SUM OF MT=51-66,91
MT=16,17,22,28,51-66,91,103,107 (N,2N),(N,3N),(N,NA),(N,NP),
INELASTIC,(N,P),(N,A)
FOR THESE REACTIONS THE CROSS SECTIONS WERE CALCULATED WITH THE
MULTI-STEP HAUSER-FESHBACH CODE TNG /18, 19/. AT FIRST, THE
OPTICAL MODEL AND LEVEL DENSITY PARAMETERS WERE TAKEN FROM THE
WORKS OF SMITH ET AL./20/ AND IIJIMA ET AL./21/, RESPECTIVELY
AND THEN THEY WERE ADJUSTED TO REPRODUCE THE AVAILABLE
EXPERIMENTAL DATA.
FOR JENDL-3.2, INELASTIC SCATTERING CROSS SECTIONS AT
THRESHOLD ENERGIES OF OTHER LEVELS WERE INSERTED BY
INTERPOLATING THE CALUCULATED VALUES WITH AKIMA'S METHOD.
THE OPTICAL MODEL PARAMETERS ARE:
DEPTH (MEV) RADIUS(FM) DIFFUSENESS(FM)
----------------- ------------ ---------------
NEUTRON V = 48.25-0.3E R0 = 1.249 A0 = 0.603
WS = 8.501-0.15E RS = 1.270 AS = 0.575
VSO= 6.000 RSO= 1.249 ASO= 0.603
PROTON V = 66.061-0.550E R0 = 1.150 A0 = 0.650
WS = 12.50-0.10E RS = 1.250 AS = 0.470
RC = 1.150
ALPHA V = 193.0-0.15E R0 = 1.370 A0 = 0.560
WS = 21.00+0.25E RS = 1.370 AS = 0.560
RC = 1.370
THE LEVEL DENSITY PARAMETERS ARE:
ECUT(MEV) EJO(MEV) T(MEV) A(1/MEV) C(MEV) CSPIN EPAIR
RH-103 0.990 5.409 0.655 15.50 3.884 49.725 0.94
RH-104 0.230 4.351 0.650 15.43 17.72 49.820 0.00
PD-106 2.380 8.004 0.666 17.17 0.920 56.147 2.59
PD-107 0.700 7.693 0.769 14.98 6.956 49.293 1.35
AG-105 1.230 5.830 0.609 18.57 2.750 60.343 0.94
AG-106 0.400 3.549 0.563 17.16 12.92 56.110 0.00
AG-107 1.420 5.918 0.693 14.55 2.412 47.878 1.24
AG-108 0.270 3.014 0.576 15.04 6.004 49.799 0.00
THE LEVEL SCHEME IS GIVEN AS FOLLOWS:
NO. ENERGY(MEV) SPIN-PARITY
GR. 0.0 1/2 -
1 0.0930 7/2 +
2 0.1260 (9/2)+
3 0.3250 3/2 -
4 0.4230 5/2 -
5 0.7730 (11/2)+
6 0.7870 3/2 -
7 0.9220 5/2 +
8 0.9500 5/2 -
9 0.9730 (7/2)-
10 0.9910 (13/2)+
11 1.0610 (1/2 -)
12 1.1420 1/2 +
13 1.1470 7/2 -
14 1.2230 5/2 +
15 1.2590 (3/2)+
16 1.3260 (3/2)+
CONTINUUM LEVELS WERE ASSUMED ABOVE 1.42 MEV.
MT=251
CALCULATED FROM MF=4,MT=2.
MF=4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=2
CALCULATED WITH THE CASTHY CODE /22/.
MT=51-66
CALCULATED WITH THE TNG CODE.
MT=16,17,22,28,91
ASSUMED TO BE ISOTROPIC IN THE LABORATORY SYSTEM.
MF=5 ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=16,17,22,28,91
CALCULATED WITH TNG.
MF=12,14,15 GAMMA-PRODUCTION DATA
MT=4,16,17,22,28,102,103,107
CALCULATED WITH TNG.
REFERENCES
1) LIU., T. ET AL.: JAERI-M 91-011 (1991).
2) NAKAJIMA, Y., TO BE PUBLISHED.
3) MOXON, M.C., RAE, E.R., "PROC. EANDC CONF. ON TIME-OF-FLIGHT
METHODS, SACLAY, 1961",439.
4) GARG, J.B., ET AL., PHYS. REV., B137, 547(1965).
5) ASGHAR, M., ET AL., "PROC. INT. CONF. ON THE STUDY OF NUCLEAR
STRUCTURE WITH NEUTRONS, ANTWERP 1965",(65).
6) MURADJAN, G.V., ADAMCHUK, JU. V., JADERNO-FIZICHESKIE
ISSLEDOVANIJA, 6, 64 (1968).
7) DE BARROS, S., ET AL., NUCL. PHYS., A131, 305(1969).
8) PATTENDEN, N.J., JOLLY, J.E., AERE-PR/NP-16(1969).
9) MACKLIN, R.L., NUCL. SCI. ENG., 82, 400(1982).
10) MIZUMOTO, M., ET AL., J. NUCL. SCI. TECHNOL., 20, 883(1983).
11) BOLLINGER, L.M. AND THOMAS, G.E.: PHYS. REV., 171,1293(1968).
12) KIKUCHI, Y., PRIVATE COMMUNICATION.
13) POENITZ, W.P., WHALEN, J.F., ANL-NDM-80(1983).
14) MIZUMOTO, M., ET AL., "PROC. INT. CONF. ON NUCL. DATA FOR
SCIENCE. AND TECHNOLOGY", ANTWERP, P.226 (1982).
15) DUKAREVICH, JU.V., ET AL., NUCL. PHYS., A92, 433( 1967).
16) SMITH, A., ET AL., NUCL. PHYS., A332, 297 (1979).
17) NAKAGAWA, T., J. AT. ENE. SOC. JAPAN, 22, 559 (1980).
18) FU, C.Y., ORNL/TM-7042(1980).
19) SHIBATA, K., FU, C.Y., ORNL/TM-10093(1986).
20) SMITH, A., ET AL., NUCL. PHYS., A415, 1 (1984).
21) IIJIMA, S., ET AL., J. NUCL. SCI. TECHNOL., 21, 10 (1984).
22) IGARASI, S. AND FUKAHORI, T.: JAERI 1321 (1991).