ENTRY 20506 19840126 00002050600000001
SUBENT 20506001 19840126 00002050600100001
BIB 11 60 2050600100002
INSTITUTE (2FR BRC) 2050600100003
REFERENCE (W,FREHAUT,8009) PRIVATE COMMUNICATION OF FREHAUT. 2050600100004
MAIN REFERENCE SUPERSEDING ALL DATA FROM PREVIOUS 2050600100005
PUBLICATIONS, LISTED BELOW 2050600100006
(C,73KIEV,3,153,7305) NATIONAL SOVIET CONF. ON NEUTRON 2050600100007
PHYSICS, KIEV,28/5-1/6(1973). 2050600100008
THIS REFERENCE IS KEPT AS MAIN REFERENCE FOR THE 2050600100009
DESCRIPTION OF THE EXPERIMENT. 2050600100010
THE PAPER GIVES NU-BAR DATA FOR U-235,PU-240 AND 2050600100011
PU-240/U-235 FISSION RATIO. 2050600100012
ONLY DATA FOR U-235, HOWEVER, ARE REPORTED HERE. 2050600100013
FOR PU-240 AND FOR FISSION RATIO SEE 2050600100014
(R,CEA-R-4626,7411) 2050600100015
WITH MORE UP-TO-DATE RESULTS. 2050600100016
THE REFERENCE ABOVE (73KIEV,3,153) SUPERSEDES THE 2050600100017
RESULTS PUBLISHED IN 2050600100018
(J,JNE,23,257,6905) 2050600100019
AND MAY BE CONSIDERED EQUIVALENT TO 2050600100020
(R,EANDC-154,67,7303) 2050600100021
ASSOCIATED REFERENCES ARE 2050600100022
(P,EANDC(E)-89,6802)WITH PRELIMINARY RESULTS 2050600100023
(P,EANDC(E)-115,6903) PROGR.REP. ANNOUNCING NEW 2050600100024
MEASUREMENTS 2050600100025
(C,69VIENNA,,931,6907) PROGR. REP. 2050600100026
(P,EANDC(E)-150,7202) PROGR. REP. 2050600100027
AUTHOR (J.FREHAUT, M.SOLEILHAC, G.MOSINSKI) 2050600100028
TITLE -MEASUREMENT OF THE AVERAGE NUMBER OF PROMPT NEUTRONS 2050600100029
EMITTED IN THE FISSION OF PU-240 AND U-235 INDUCED BY 2050600100030
NEUTRONS OF ENERGY BETWEEN 1.5 TO 15 MEV.- (IN FRENCH)2050600100031
FACILITY (VDGT ) 12 MEV TANDEM VAN DE GRAAFF 2050600100032
INC-SOURCE (P-T ) T(P,N)HE3 FOR NEUTRONS FROM 1.5 TO 7 MEV, 2050600100033
(D-D ) D(D,N)HE3 FOR NEUTRONS FROM 7 TO 15 MEV. 2050600100034
METHOD (TOF ) TIME OF FLIGHT TO SEPARATE FISSION EVENTS 2050600100035
INDUCED BY MONOENERGETIC INCIDENT NEUTRONS FROM 2050600100036
SPONTANEOUS AND SPURIOUS FISSION EVENTS. 2050600100037
DETECTOR (SCIN ) 80 CM DIAMETER GADOLINIUM-LOADED LIQUID 2050600100038
SCINTILLATOR. FISSION CHAMBER WAS PLACED AT CENTRE. 2050600100039
.COUNTING OF FISSION NEUTRONS, AFTER THERMALIZATION AND2050600100040
CAPTURE, DURING 50 MICRO-SEC FOLLOWING FISSION EVENT. 2050600100041
.BACKGROUND COUNTING WITH FISSION NEUTRONS, 200 MICRO- 2050600100042
SEC AFTER EACH FISSION EVENT. 2050600100043
STATUS .DATA FROM PRIVATE COMMUNICATION OF FREHAUT. 2050600100044
HISTORY (730830C) 2050600100045
(760315E) 2050600100046
(801015A) G.C. DATA UPDATED WITH FREHAUT'S PRIVATE 2050600100047
COMMUNICATION. 2050600100048
(801104E) 2050600100049
CORRECTION .THE AUTHORS HAVE NOTICED THAT THE BACKGROUND WAS 2050600100050
ALWAYS HIGHER FOR EVENTS WITHIN THE T-OF-F PEAK 2050600100051
THAN FOR THE REST OF THE T-OF-F SPECTRUM AND IT WAS 2050600100052
RECOGNIZED ESSENTIAL TO CONSIDER THE BACKGROUND 2050600100053
ASSOCIATED WITH THE PART OF THE T-OF-F BEING 2050600100054
ANALYSED. 2050600100055
.A CORRECTION FOR THIS VARIABLE BACKGROUND WAS APPLIED 2050600100056
WHICH RESULTED IN AN INCREASE OF THE NU VALUES GIVEN 2050600100057
IN JNE,23,257. 2050600100058
.IN A THIRD MEASUREMENT TO CHECK THIS CORRECTION. THESE2050600100059
RESULTS WERE NOT CONFIRMED. THEREFORE THE DATA ARE 2050600100060
CORRECTED AGAIN IN THE PRIVATE COMMUNICATION OF 2050600100061
FREHAUT. 2050600100062
ENDBIB 60 0 2050600100063
NOCOMMON 0 0 2050600100064
ENDSUBENT 63 0 2050600199999
SUBENT 20506002 19840126 00002050600200001
BIB 6 11 2050600200002
REACTION (92-U-235(N,F),PR,NU) PROMPT NU-BAR. 2050600200003
SAMPLE .FAST FISSION CHAMBER CONTAINING 50 MG OF U-235, 2050600200004
ENRICHMENT 99.89 PERCENT. 2050600200005
MONITOR (98-CF-252(0,F),PR,NU) 2050600200006
STATUS .DATA FROM PRIVATE COMMUNICATION OF FREHAUT. 2050600200007
HISTORY (730830C) 2050600200008
(760315E) 2050600200009
(801015A) G.C. UPDATED WITH DATA FROM PRIVATE 2050600200010
COMMUNICATION OF FREHAUT. 2050600200011
(801104E) 2050600200012
ERR-ANALYS (ERR-S) ERROR GIVEN IS STATISTICAL. 2050600200013
ENDBIB 11 0 2050600200014
COMMON 1 3 2050600200015
MONIT 2050600200016
NO-DIM 2050600200017
3.7820E+00 2050600200018
ENDCOMMON 3 0 2050600200019
DATA 4 34 2050600200020
EN EN-RSL DATA ERR-S 2050600200021
MEV MEV NO-DIM NO-DIM 2050600200022
1.3600E+00 1.6500E-01 2.5250E+00 1.7000E-02 2050600200023
1.3700E+00 1.5000E-01 2.5900E+00 2.2000E-02 2050600200024
2.3300E+00 1.0000E-01 2.6310E+00 2.6000E-02 2050600200025
2.4500E+00 1.2500E-01 2.6460E+00 2.2000E-02 2050600200026
2.9800E+00 1.0500E-01 2.7150E+00 1.8000E-02 2050600200027
3.5000E+00 1.0000E-01 2.7610E+00 2.3000E-02 2050600200028
3.9300E+00 7.5000E-02 2.8390E+00 2.6000E-02 2050600200029
4.0300E+00 9.0000E-02 2.8470E+00 1.9000E-02 2050600200030
4.4300E+00 9.0000E-02 2.9330E+00 2.8000E-02 2050600200031
4.5400E+00 8.0000E-02 2.9390E+00 2.2000E-02 2050600200032
4.9400E+00 8.5000E-02 3.0180E+00 2.8000E-02 2050600200033
5.0600E+00 7.0000E-02 2.9950E+00 1.9000E-02 2050600200034
5.5700E+00 7.0000E-02 3.1170E+00 2.8000E-02 2050600200035
5.9800E+00 7.5000E-02 3.2520E+00 3.8000E-02 2050600200036
6.0800E+00 6.5000E-02 3.2070E+00 2.9000E-02 2050600200037
6.9700E+00 1.7000E-01 3.3740E+00 2.2000E-02 2050600200038
7.0900E+00 6.5000E-02 3.3800E+00 2.9000E-02 2050600200039
7.4800E+00 1.6500E-01 3.4720E+00 1.6000E-02 2050600200040
7.9900E+00 1.4500E-01 3.5330E+00 1.7000E-02 2050600200041
8.4900E+00 1.3000E-01 3.6080E+00 1.8000E-02 2050600200042
9.0000E+00 1.2000E-01 3.6810E+00 1.8000E-02 2050600200043
9.4900E+00 1.1000E-01 3.7590E+00 2.0000E-02 2050600200044
9.7400E+00 1.1000E-01 3.8000E+00 2.1000E-02 2050600200045
9.9800E+00 1.0000E-01 3.8310E+00 1.4000E-02 2050600200046
1.0470E+01 9.5000E-02 3.8860E+00 2.0000E-02 2050600200047
1.0960E+01 9.0000E-02 3.9210E+00 1.9000E-02 2050600200048
1.1440E+01 8.5000E-02 4.0220E+00 2.0000E-02 2050600200049
1.1930E+01 8.0000E-02 4.0840E+00 2.1000E-02 2050600200050
1.2410E+01 8.0000E-02 4.1500E+00 2.0000E-02 2050600200051
1.2880E+01 8.0000E-02 4.2040E+00 2.4000E-02 2050600200052
1.3360E+01 7.5000E-02 4.2920E+00 2.2000E-02 2050600200053
1.3840E+01 7.5000E-02 4.3580E+00 2.2000E-02 2050600200054
1.4310E+01 7.0000E-02 4.4280E+00 2.2000E-02 2050600200055
1.4790E+01 7.0000E-02 4.4540E+00 2.3000E-02 2050600200056
ENDDATA 36 0 2050600200057
ENDSUBENT 56 0 2050600299999
ENDENTRY 2 0 2050699999999