ENTRY 41642 20171228 41774164200000001 SUBENT 41642001 20171228 41774164200100001 BIB 13 34 4164200100002 TITLE Energy dependence of the space-parity violating 4164200100003 asymmetry in the fragment emission from fission of 4164200100004 239Pu induced by slow polarized neutrons. 4164200100005 INSTITUTE (4RUSLIN) 4164200100006 AUTHOR (G.V.Val'skiy,T.K.Zvezdkina,D.V.Nikolaev,V.I.Petrov, 4164200100007 G.A.Petrov,A.K.Petukhov,Yu.S.Pleva,V.A.Tyukavin) 4164200100008 REFERENCE (J,YF,36,(1),44,1982) 4164200100009 (J,SNP,36,26,1982) 4164200100010 English translation of YF,36,(1),44,1982 4164200100011 FACILITY (REAC) 4164200100012 INC-SOURCE (POLNS) Reactor neutrons were reflected from magnetized4164200100013 crystal Cu(2)MnAl . 4164200100014 INC-SPECT Monochromatic polarized neutrons. Energy 0.01-0.3 eV. 4164200100015 Beam polarization ~93.% 4164200100016 DETECTOR (SCIN) Xe gas filled eight scintillation detectors to 4164200100017 register fission fragments . 4164200100018 METHOD (TOF) To measure beam polarization. 4164200100019 (MAGFR) Polarization was reversed each 2 or 4 sec 4164200100020 parallel to forward or backward of magnetic field 4164200100021 Measurements series at 12-18 hr. 4164200100022 SAMPLE Pu layers of 200 microg/cm2 on both sides of Al foils.4164200100023 Pu total mass ~30mg. 4164200100024 CORRECTION For mixing of LF and HF - 9% or 40%, when 1/3 or 1/2 p4164200100025 of integral counts of all fragments was taken into 4164200100026 account . 4164200100027 For admixture of higher orders of reflection. 4164200100028 For background. 4164200100029 For limited solid angle ( average COS(angle)=~0.5). 4164200100030 ADD-RES Asymmetry of fission fragments was found as 4164200100031 (N1-N2)/(N1+N2), where N1 and N2 are normalized 4164200100032 integral intensities for two opposite directions of 4164200100033 incident neutron polarization. See fig.2 of 4164200100034 YF,36,(1),44,1982 . 4164200100035 HISTORY (20171228C) M.M. 4164200100036 ENDBIB 34 0 4164200100037 NOCOMMON 0 0 4164200100038 ENDSUBENT 37 0 4164200199999 SUBENT 41642002 20171228 41774164200200001 BIB 2 2 4164200200002 REACTION (94-PU-239(N,0),,J) Resonance spin 4164200200003 STATUS (TABLE) Text, page 46 of YF,36,(1),44,1982 4164200200004 ENDBIB 2 0 4164200200005 NOCOMMON 0 0 4164200200006 DATA 3 1 4164200200007 EN-RES DATA PARITY 4164200200008 EV NO-DIM NO-DIM 4164200200009 0.297 1. +1. 4164200200010 ENDDATA 3 0 4164200200011 ENDSUBENT 10 0 4164200299999 ENDENTRY 2 0 4164299999999