22-Ti- 50
22-TI- 50 KUR EVAL-SEP88 K.KOBAYASHI(KUR),HASHIKURA(TOK)
DIST-SEP89 REV2-NOV93
----JENDL-3.2 MATERIAL 2237
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
88-09 COMPILED BY T.ASAMI(NEDAC)
93-11 JENDL-3.2
DATA WERE MAINLY ADOPTED FROM JENDL FUSION FILE.
COMPILED BY T.NAKAGAWA
***** MODIFIED PARTS FOR JENDL-3.2 ********************
ALL CROSS SECTIONS EXCEPT (3,1) AND (3,102)
ALL ANGULAR DISTRIBUTIONS EXCEPT FOR (4,2).
ALL ENERGY DISTRIBUTIONS.
***********************************************************
-------------------------------------------------------------
JENDL FUSION FILE /1/ (AS OF NOV. 1993)
EVALUATED BY K.KOSAKO (NEDAC) AND S. CHIBA (NDC/JAERI)
COMPILED BY K.KOSAKO.
- THE INELASTIC SCATTERING CROSS SECTIONS AND ANGULAR
DISTRIBUTIONS OF INELASTICALLY SCATTERED NEUTRONS (EXCEPT
CONTINUUM INELASTIC) WERE CALCULATED WITH CASTHY2Y AND
DWUCKY IN SINCROS-II SYSTEM/2/ INCLUDING CONTRIBUTIONS
FROM DIRECT REACTIONS.
- THE (N,2N), (N,NA), (N,NP), (N,P) AND (N,A) REACTION
CROSS SECTIONS (MT=16, 22, 28, 103, 107) WERE CALCULATED
BY EGNASH2 IN THE SINCROS-II.
- ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS WERE REPLACED
BY THOSE CALCULATED BY EGNASH2. THE DDX'S OF THE
CONTINUUM NEUTRONS WERE CALCULATED BY KUMABE'S SYSTEMA-
TICS /3/ USING F15TOB /1/. THE PRECOMPOUND/COMPOUND
RATIO WAS CALCULATED BY THE SINCROS-II CODE SYSTEM.
- THE RESONANCE PARAMETERS, TOTAL AND CAPTURE CROSS
SECTIONS AND ANG. DISTRIBUTIONS OF ELASTICALLY SCATTERED
NEUTRONS WERE TAKEN FROM JENDL-3.1.
- OPTICAL-MODEL, LEVEL DENSITY AND OTHER PARAMETERS USED IN
THE SINCROS-II CALCULATION ARE DESCRIBED IN REF./2/.
LEVEL SCHEMES WERE DETERMINED ON THE BASIS OF ENSDF/4/.
-------------------------------------------------------------
MF=1 GENERAL INFORMATION
MT=451 DESCRIPTIVE DATA AND DICTIONARY
MF=2 RESONANCE PARAMETERS
MT=151 RESOLVED RESONANCE PARAMETERS
RESOLVED PARAMETERS FOR MLBW FORMULA WERE GIVEN IN THE ENERGY
REGION FROM 1.0E-5 EV TO 200 KEV. PARAMETERS WERE TAKEN FROM
REF./5/, FOR POSITIVE RESONANCES. PARAMETERS FOR NEGATIVE
RESONANCE WERE OBTAINED SO THAT THE REPRODUCED CROSS SECTIONS
FOR BOTH SCATTERING AND CAPTURE GAVE THE 2200 M/S VALUE OF
3.7+-0.3 AND 0.179+-0.003 BARNS, RESPECTIVELY/5/. THE
SCATTERING RADIUS WAS ASSUMED TO BE 4.5 FERMI. CALCULATED 2200
M/SEC CROSS SECTIONS AND RESONANCE INTEGRALS ARE AS FOLLOWS:
2200 M/S CROSS SECTION(B) RES. INTEGRAL(B)
ELASTIC 3.71
CAPTURE 0.18 0.086
TOTAL 3.88
MF=3 NEUTRON CROSS SECTIONS
BELOW 180 KEV, NO BACKGROUND CROSS SECTION WAS GIVEN.
FOR JENDL-3.2, ALL CROSS-SECTION DATA EXCEPT FOR THE TOTAL AND
CAPTURE WERE ADOPTED FROM JENDL FUSION FILE. THE CALCULATION
WAS MADE WITH SINCROS-II SYSTEM/2/ BY ADOPTING WALTER-GUSS OMP
MODIFIED BY YAMAMURO/2/ FOR NEUTRON, PEREY OMP /6/ FOR PROTON,
LEMOS OMP MODIFIED BY ARTHUR AND YOUNG/7/ FOR ALPHA, LOHR-
HAEBERLI OMP/8/ FOR DEUTERON, BECCHETTII-GREENLEES OMP/9/ FOR
TRITON AND HE-3, AND STANDARD LEVEL DENSITY PARAMETERS OF
SINCROS-II SYSTEM.
MT=1 TOTAL
OPTICAL AND STATISTICAL MODEL CALCULATION WAS MADE WITH
CASTHY CODE/10/. THE OPTICAL POTENTIAL PARAMETERS USED ARE:
V = 50.75 - 0.120*EN, VSO = 4.72 (MEV)
WS = 10.9 - 0.234*EN, WV = 0.0 (MEV)
R = 1.26, RS = 1.02, RSO = 1.16 (FM)
A = 0.52, ASO = 0.52, B = 0.40 (FM)
MT=2 ELASTIC SCATTERING
OBTAINED BY SUBTRACTING THE SUM OF THE PARTIAL CROSS SECTIONS
FROM THE TOTAL CROSS SECTION.
MT=4, 51-61, 91 INELASTIC SCATTERING
THE CROSS SECTIONS WERE TAKEN FROM JENDL FUSION FILE. THE
LEVEL SCHEME WAS BASED ON REF./4/ CONTRIBUTIONS OF THE
DIRECT PROCESS WERE CALCULATED FOR THE LEVELS MARKED WITH '*',
USING DEFORMATION PARAMETERS COMPILED BY RAMAN ET AL./11/ AND
SPEAR/12/.
NO. ENERGY(MEV) SPIN-PARITY (DIRECT PROCESS)
G.S. 0.0 0 +
1 1.5538 2 + *
2 2.6749 4 + *
3 3.1987 6 + *
4 3.771 2 +
5 3.8681 0 +
6 3.9748 4 +
7 4.1473 4 + *
8 4.1718 3 +
9 4.1723 2 + *
10 4.311 2 + *
11 4.4105 3 - *
LEVELS ABOVE 4.411 MEV WERE ASSUMED TO BE OVERLAPPING.
MT=16, 22, 28, 103 (N,2N), (N,NA),(N,NP), (N,P)
ADOPTED FROM JENDL FUSION FILE. THEORETICAL CALCULATION WAS
MADE WITH SINCROS-II. THE RESULTS WERE NORMALIZED TO
(N,2N) 1.0 B AT 14.9 MEV (SYSTEMATICS BY KASUGAI/13/),
(N,P) 0.0134 B AT 14.94 MEV MEASURED BY IKEDA ET AL./14/,
(N,A) 0.0104 B AT 14.95 MEV MEASURED BY IKEDA ET AL./14/.
MT=102 CAPTURE
CALCULATED WITH THE CASTHY CODE/10/ AND NORMALIZED TO 2.3 MB
AT 25 KEV.
MT=251 MU-BAR
CALCULATED BASED ON OPTICAL MODEL
MF=4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=2
CALCULATED WITH THE CASTHY CODE/10/.
MT=16, 22, 28, 51-61, 91
TAKEN FROM JENDL FUSION FILE. THE DATA OF MT=16, 22, 28 AND
91 WERE TRANSFORMED INTO THE LAB SYSTEM.
MF=5 ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=16, 22, 28, 91
TAKEN FROM JENDL FUSION FILE. THE DATA OF MT=16, 22, 28 AND
91 WERE TRANSFORMED INTO THE LAB SYSTEM.
REFERENCES
1) CHIBA, S. ET AL.: JAERI-M 92-027, P.35 (1992).
2) YAMAMURO, N.: JAERI-M 90-006 (1990).
3) KUMABE, I. ET AL.: NUCL. SCI. ENG., 104, 280 (1990).
4) ENSDF: EVALUATED NUCLEAR STRUCTURE DATA FILE, BNL/NNDC.
5) MUGHABGHAB, S.F. ET AL. : " NEUTRON CROSS SECTIONS ", VOL.1,
PART A (1981).
6) PEREY, F.G.: PHYS. REV., 131, 745 (1963).
7) ARTHUR, E.D. AND YOUNG, P.G.: LA-8626-MS (1980).
8) LOHR, J.M. AND HAEBERLI W.: NUCL. PHYS., A232, 381 (1974).
9) BECCHETTI, F.D. JR. AND GREENLEES G.W.: "POLARIZATION
PHENOMENA IN NUCL. REACTIONS," UNIV. WISCONSIN PRESS, P.682
(1971).
10) IGARASI, S. AND FUKAHORI, T.: JAERI 1321 (1991).
11) RAMAN, S., ET AL.: ATOM. DATA AND NUCL. DATA TABLES 36, 1
(1987)
12) SPEAR, R.H.: ATOM. DATA AND NUCL. DATA TABLE, 42, 55 (1989).
13) KASUGAI Y.: PRIVATE COMMUNICATION (1993).
14) IKEDA, Y. ET AL.: JAERI 1312 (1988).