22-Ti- 48
22-TI- 48 KUR EVAL-SEP88 K.KOBAYASHI(KUR),H.HASHIKURA(TOK)
DIST-SEP89 REV1-APR93
----JENDL-3.2 MATERIAL 2231
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
88-09 COMPILED BY T.ASAMI(NEDAC)
93-03 (4,91) CHANGED INTO LAB SYSTEM.
93-12 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 (3,102) AND (3,107)
ALL ANGULAR DISTRIBUTIONS EXCEPT FOR (4,2).
ALL ENERGY DISTRIBUTIONS.
***********************************************************
-------------------------------------------------------------
JENDL FUSION FILE /1/ (AS OF DEC. 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) AND (N,P) REACTION CROSS
SECTIONS (MT=16, 22, 28, 103) 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, CAPTURE AND (N,A) 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 100 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 VALUES OF
4.61+-0.2 AND 7.84+-0.25 BARNS, RESPECTIVELY/5/. THE SCATTER-
ING RADIUS WAS ASSUMED TO BE 4.2 FERMI INSTEAD OF 3.9 FERMI IN
REF./5/. CALCULATED 2200 M/SEC CROSS SECTIONS AND RESONANCE
INTEGRALS ARE AS FOLLOWS:
2200 M/S CROSS SECTION(B) RES. INTEGRAL(B)
ELASTIC 4.61
CAPTURE 7.84 3.69
TOTAL 12.45
MF=3 NEUTRON CROSS SECTIONS
BELOW 100 KEV, NO BACKGROUND CROSS SECTION WAS GIVEN.
FOR JENDL-3.2, ALL CROSS-SECTION DATA EXCEPT FOR THE TOTAL,
CAPTURE AND (N,A) 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)
IN JENDL-3.1, THE TOTAL CROSS SECTION WAS NOT THE SAME AS THIS
CALCULATION. FOR JENDL-3.2, IT WAS REPLACED WITH THE CASTHY
CALCULATION.
MT=2 ELASTIC SCATTERING
OBTAINED BY SUBTRACTING THE SUM OF THE PARTIAL CROSS SECTIONS
FROM THE TOTAL CROSS SECTION.
MT=4, 51-68, 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 0.9835 2+ *
2 2.2956 4+ *
3 2.421 2+ *
4 2.9973 0+ *
5 3.224 3+
6 3.2398 4+ *
7 3.3332 6+
8 3.3588 3- *
9 3.3709 2+
10 3.5085 6+
11 3.6168 2+ *
12 3.6336 2+
13 3.6994 1+
14 3.711 1+
15 3.7386 1+
16 3.7825 4-
17 3.8028 1+
18 3.8522 3- *
LEVELS ABOVE 3.852 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,NP)+(N,D) 0.0207 B AT 15.0 MEV MEASURED BY IKEDA ET AL./13/
(N,P) 0.0596 B AT 14.93 MEV MEASURED BY IKEDA ET AL./13/
MT=102 CAPTURE
CALCULATED WITH THE CASTHY CODE/10/ AND NORMALIZED TO 4.3 MB
AT 20 KEV.
MT=107 (N,A)
EVALUATED BASED ON THE EXPERIMENTAL DATA.
MT=251 MU-BAR
CALCULATED WITH OPTICAL MODEL.
MF=4 ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
MT=2
CALCULATED WITH THE CASTHY CODE/10/
MT=16, 22, 28, 51-68, 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) IKEDA, Y. ET AL.: JAERI 1312 (1988).