ENTRY            41525   20230203                                 4152500000001 
SUBENT        41525001   20230203   20231011                      4152500100001 
BIB                 13         62                                 4152500100002 
TITLE       Investigations of the neutron-fission processes on the4152500100003 
            lead neutron slowing-down spectrometer of INR RAS.    4152500100004 
AUTHOR     (A.A.Alekseev, A.A.Bergman, O.N.Goncharenko, A.P.Jukov,4152500100005 
           A.D.Perekrestenko,N.M.Sobolevsky,A.N.Volkov,B.I.Fursov,4152500100006 
           A.A.Goverdovsky, B.F.Samylin, A.M.Trufanov)            4152500100007 
INSTITUTE  (4RUSJIA) A.A.Alekseev, A.A.Bergman, O.N.Goncharenko,  4152500100008 
            A.P.Jukov,A.D.Perekrestenko,N.M.Sobolevsky,A.N.Volkov.4152500100009 
            Institute for Nuclear Research of Russian Academy of  4152500100010 
            Science - INR RAS.                                    4152500100011 
           (4RUSFEI) B.I.Fursov,A.A.Goverdovsky, B.F.Samylin,     4152500100012 
                    A.M.Trufanov.                                 4152500100013 
REFERENCE  ((S,ISINN-12,237,2004)=(S,JINR-E3-2004-169,237,2004))  4152500100014 
           (J,ZEP,78,799,2003) Iss.6                              4152500100015 
           (J,JEL,78,347,2003) Engl.translation of ZEP,78,799     4152500100016 
            Figs. of U235, Th232 fis. CS ( Subents 002, 007) of   4152500100017 
           low size,overlapping,not for digitization.             4152500100018 
REL-REF    (N,,A.A.Bergman+,P,JIA-1089,2002)                      4152500100019 
            Monte-Carlo modeling of spectrometer.                 4152500100020 
           (N,,Bergman+,P,JIA-1099,2002)                          4152500100021 
            Neutron flux intensity Monte-Carlo calculation.       4152500100022 
           (I,,A.A.Alekseev+,J,YF,62,851,1999) Issue 5.           4152500100023 
            Facility details.                                     4152500100024 
           (I,,A.A.Alekseev+,J,PAN,62,793,1999)                   4152500100025 
            English translation of YF,62,851,1999.                4152500100026 
METHOD     (SLODT) 100-ton moderator of ultra-pure (99.99%) lead. 4152500100027 
            Slowing down constant 171 keV/microsec**2,            4152500100028 
            energy resolution in 1 eV- 1 keV region -28%,         4152500100029 
            initial pulse width (FWHM) 0.5-2. microsec.           4152500100030 
              Spectrometer LSD-100 (=SVZ-100, =S-100).            4152500100031 
            Measured characteristics of spectrometer are close to 4152500100032 
            theoretical predictions and Monte-Carlo calculations. 4152500100033 
           (ASPEC) To define thickness and mass of sample.        4152500100034 
FACILITY   (LINAC,4RUSJIA)                                        4152500100035 
INC-SOURCE (SPALL) Proton beam of 209 MeV energy,average current  4152500100036 
            1-1.5 microA. Proton target at 70 cm from center of   4152500100037 
            moderator.                                            4152500100038 
INC-SPECT   Neutron source intensity > 1.E+13 n/sec, neutron flux 4152500100039 
            density about 1.E+9 n/(sec*cm**2) on the surface of   4152500100040 
            sample. Flux of time decreasing parameter 1.3 (Fig.4  4152500100041 
            of S,ISINN-12,237).                                   4152500100042 
DETECTOR   (FISCH) Two fission chambers.                          4152500100043 
            -  Distance between electrodes 3mm, total gas pressure4152500100044 
            2.5 atm. Fast amplifiers and time-coders to eliminate 4152500100045 
            the background of overlapping pulses driven by        4152500100046 
           alpha-particles.                                       4152500100047 
           - Contains four layers of Th-232, Np-237,Cm-245,Pu-239.4152500100048 
            Distance between electrodes 1 mm, total gas pressure  4152500100049 
            1.5 atm.                                              4152500100050 
           Both chambers were place in one channel at 90 cm from  4152500100051 
           proton target.                                         4152500100052 
MONITOR    (92-U-235(N,F),,SIG) as flux monitor in all runs.      4152500100053 
           (94-PU-239(N,F),,SIG) as second flux monitor.          4152500100054 
STATUS              Request for data was sent 04.08.2009 to       4152500100055 
            A.Trufanov - no reply, he's retired.                  4152500100056 
           (PRELM) Analysis of data has not finished, data are not4152500100057 
            ready for EXFOR (some authors left their institutes). 4152500100058 
HISTORY    (20090805C)  M.M.                                      4152500100059 
           (20100202U) PRELM (and comment) was added in STATUS.   4152500100060 
           (20181001U) Refs. ZEP and JEL were added.              4152500100061 
           (20230203A) SPA -> SDT, UNOBT -> SPSDD.                4152500100062 
            Subents 002-007 were deleted according to a comment of4152500100063 
            N.Otsuka (NDS,IAEA).                                  4152500100064 
ENDBIB              62          0                                 4152500100065 
NOCOMMON             0          0                                 4152500100066 
ENDSUBENT           65          0                                 4152500199999 
NOSUBENT      41525002   20230203   20231011                      4152500200001 
NOSUBENT      41525003   20230203   20231011                      4152500300001 
NOSUBENT      41525004   20230203   20231011                      4152500400001 
NOSUBENT      41525005   20230203   20231011                      4152500500001 
NOSUBENT      41525006   20230203   20231011                      4152500600001 
NOSUBENT      41525007   20230203   20231011                      4152500700001 
ENDENTRY             7          0                                 4152599999999