1-H - 3 CNDC EVAL-JAN91 ZHUANG YOUXIANG
DIST-JAN09 20090105
----JEFF-311 MATERIAL 131
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
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** Original data taken from: JEFF-3.1 **
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** Original data taken from: JEFF-3.0 **
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DATA TAKEN FROM :- CENDL-2 (DIST-OCT92)
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THIS EVALUATION IS BASED ON REF.1 AND ENDF/B-6.
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MF=1
MT=451 DESCRIPTION OF THE DATA GIVEN BY
EVALUATOR.
MF=2
MT=151 SCATTERING LENGTH=0.32164 X 1.0E-12 CM
MF=3
MT=1 TOTAL CROSS SECTIONS WERE TAKEN FROM
THE MEASUREMENTS OF REFS. 2 TO 4.
MT=2. ELASTIC SCATTERING CROSS SECTIONS WERE
OBTAINED FROM THE TOTAL MINUS SUM OF
(N,2N) AND (N,3N) CROSS SECTIONS.
MT=16 (N,2N) CROSS SECTIONS. ONLY ONE
MEASUREMENT EXISTS, THAT OF MATHER AND
PAIN (REF.5) AT 14.1 MEV. ESTIMATES
OF THIS CROSS SECTION WERE THEREFORE
MADE FROM SYSTEMATICS AND THE P-HE3
REACTION STUDIES OF ROSEN AND LELAND
(REF.6) AND OF ANDERSON (REF.7).
MT=17 (N,3N) CROSS SECTIONS WERE AVALUATED
ON THE BASIS OF REFS. 5 AND 8.
NOT GIVEN MT=102 THE MEASURED CROSS SECTION IS LESS THAN
OR EQUAL TO 6.7 MICROBARNS AT THERMAL
SINCE THE Q VALUE IS UNCERTAIN
BUT EITHER ZERO OR NEGATIVE, THIS
CROSS SECTION IS ASSUMED ZERO AT ALL
ENERGIES.
MT=251 AVERAGE VALUE OF THE SCATTERING ANGLE
IN THE LABORATORY SYSTEM FROM 1.0E-05
EV TO 20 MEV.
MT=252 AVERAGE LOGARITHMETIC ENERGY CHANGE PER
COLLISION, FROM 1.0E-05 EV TO 20 MEV.
MT=253 GAMMA, FROM 1.0E-05 EV TO 20 MEV.
MF=4
MT=2 NEUTRON ELASTIC ANGULAR DISTRIBUTIONS
IN THE CENTER OF MASS SYSTEM. THESE ARE
GIVEN AS NORMALIZED PROBABILITIES
VERSUS COSINE OF THE SCATTERING ANGLE.
DATA ARE BASED ON MEASUREMENTS OF
REFS. 6, 9 TO 19 (SEE REF.20); AND
PHASE-SHIFT ANALYSIS OF REF. 21.
MT=16 (N,2N) ANGULAR DISTRIBUTIONS ARE GIVEN
IN THE LABORATORY SYSTEM AS NORMALIZED
PROBABILITIES VERSUS COSINE OF THE
SCATTERING ANGLE. SEE REF.20 FOR
DETAILS ON THESE DISTRIBUTION
FUNCTIONS.
MF=5
MT=16 (N,2N) ENERGY DISTRIBUTIONS ARE GIVEN
AS NORMALIZED PROBABILITIES VERSUS
ENERGY OF THE OUT GOING NEUTRON IN THE
LABORATORY SYSTEM. SEE REF.20 FOR
DETAILS ON THESE DISTRIBUTION
FUNCTIONS.
MF=6
MT=17 ENERGY-ANGULAR DISTRIBUTIONS OF (N,3N)
REACTION WERE TAKEN FROM M.N.NIKOLAEV.
NOT GIVEN MF=12, 13, 14, AND 15
MF=33
COMPARED WITH CENDL-1, MF 33 IS ADDED
IN CENDL-2.
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ONLY RADIATIVE CAPTURE PRODUCES GAMMA
RAYS. SINCE THE CAPTURE CROSS SECTION
IS ASSUMED ZERO AT ALL ENERGIES,
THESE FILES ARE PURPOSELY LEFT EMPTY.
REFERENCES
1. ZHUANG YOUXIANG, "CHINESE EVALUATED NUCLEAR DATA
LIBRARY, VERSION-1", P.56 (1986).
2. T.W.PHILLIPS AND B.L.BERMAN, PHYS. REV. C22, 384
(1980).
3. BATTAT ET AL., NUCL. PHYS. 12, 291 (1959).
4. KATSAUROV ET AL., AE/S 5, 71 (1957).
5. D.S.MATHER AND L.F.PAIN, AWRE 047/69 (1969).
6. L. ROSEN AND W.T. LELAND, WASH-1064 (EANDC(US)-79
U) (OCT. 1966), P. 99.
7. JOHN D. ANDERSON, PRIVATE COMMUNICATION, 1965, AND
ANDERSON ET AL, PHYS. REV. LETTERS 15, 66 (1965).
8. AJDACIC ET AL., PRL 14,144 (1965) EXFOR 30131.
9. J.D. SEAGRAVE, ET AL, PHYS. REV. 119, 1981 (1960).
10. J.H. COON, ET AL, PHYS. REV. 81, 33 (1951).
11. T.B. CLEGG, ET AL, NUCL. PHYS. 50, 621 (1964).
12. W. HAEBERLI, ET AL, PHYS. REV. 133, B1178 (1964).
13. J.E. BROLLEY, JR., ET AL, PHYS. REV. 117, 1307
(1960). DATA AT BACK ANGLES WHERE THE HE3 PARTICLES
WERE OBSERVED WERE IGNORED IN THIS ANALYSIS.
14. R.H. LOVBERG, PHYS. REV. 103, 1393 (1956).
15. R.A. VANETSIAN AND E.D. FEDCHENKO, SOVIET J. OF
ATOMIC ENERGY, TRANS. 2, 141 (1957), AND
K.P. ARTEMOV, S.P. KALININ AND L.H. SAMOILOV,
JETP 10, 474 (1960). THE LATTER DATA WERE NOT
USED, SINCE THEY COVERED THE 5- TO 10-MEV ENERGY
REGION AND WERE NOT AVAILABLE.
16. D. BLANC, F. CAMBOU, M. NIEL, AND G. VEDRENNE,
J. DE PHYSIQUE, SUPPLEMENT FASC. 3-4, C1-98 (1966).
17. J.D. SEAGRAVE ET AL., LA-DC-12954 (1971).
18. J.R. MORALES AND T.A. CAHILL, BULL. AM. PHYS. SOC.
14, 554 (1969), AND PRIVATE COMMUNICATION.
19. R.L. HUTSON ET AL., PHYS. REV. 4, C17 (1971).
20. L.STEWART, LA-3270 (1967).
21. WANG YANSEN ET AL., PRIVATE COMMUNICATION (1991).
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