ENTRY 30270 20100303 31443027000000001 SUBENT 30270001 20100303 31443027000100001 BIB 13 31 3027000100002 INSTITUTE (3CZRUJF,4ZZZDUB) 3027000100003 REFERENCE (J,CZJ/B,23,809,1973) Full paper, graph 3027000100004 AUTHOR (J.Bischof,Z.Dlouhy,J.Kvitek,Yu.P.Popov) 3027000100005 TITLE Experimental study of ternary fission of U-235 with 3027000100006 thermal and resonance neutrons 3027000100007 EXP-YEAR (1973) 3027000100008 FACILITY (REAC,3CZRUJF) VVR-S reactor at Rez 3027000100009 SAMPLE Thin layer of U-O2 (0.5 mg/cm2) deposited on a Al 3027000100010 backing (5.5 mg/cm2) 3027000100011 DETECTOR (TELES,SIBAR,SOLST) 3027000100012 Charged particle telescope consisting of a 3027000100013 - totally depleted gold surface barrier silicon diode 3027000100014 (100 mm2, 17 mu thick) for the 'dE/dx' detector, 3027000100015 - gold surface barrier silicon diode (50 mm2, 320 mu 3027000100016 thick for the depletion layer) for the 'E' detector.3027000100017 Before each experimental run the energy calibration 3027000100018 was checked with an americium alpha particles source. 3027000100019 Resolution for 5.48 MeV alpha particles = 80 keV 3027000100020 METHOD (EDE) 3027000100021 PART-DET (A) Alpha particles 3027000100022 EN-SEC The energy of alpha particles, corrected for absorption3027000100023 in the Al foil which protects the detector against 3027000100024 bombardment by fission fragments and alpha particles 3027000100025 of natural U-235 activity, is given in the data tables 3027000100026 under 'E' 3027000100027 STATUS (TABLE) Data from Kvitek's private comm. (19 Oct 1973) 3027000100028 (APRVD) Approved by Kvitek (19 Sep 1974) 3027000100029 HISTORY (19741022C) CA. 3027000100030 (20080423A) BIB section updated 3027000100031 (20100303A) SD: REACTION codes in Subents 002 - 005 3027000100032 005 were changed according to EXFOR rules. 3027000100033 ENDBIB 31 0 3027000100034 NOCOMMON 0 0 3027000100035 ENDSUBENT 34 0 3027000199999 SUBENT 30270002 20100303 31443027000200001 BIB 4 10 3027000200002 REACTION (92-U-235(N,F)2-HE-4,TER,FY/DE,,MXW/REL) 3027000200003 Ternary fission 3027000200004 INC-SPECT Thermal spectrum at the horizontal channel of the 3027000200005 VVR-S reactor 3027000200006 ANALYSIS The long-range alpha particle distribution was fitted 3027000200007 by a Gaussian distribution with the following results= 3027000200008 - average energy = 15.7 +- 0.5 MeV 3027000200009 - FWHM = 9.4 +- 0.7 MeV 3027000200010 HISTORY (20100303A) SD: REACTION code was changed 3027000200011 according to EXFOR rules. 3027000200012 ENDBIB 10 0 3027000200013 COMMON 1 3 3027000200014 EN-DUMMY 3027000200015 EV 3027000200016 2.5300E-02 3027000200017 ENDCOMMON 3 0 3027000200018 DATA 2 20 3027000200019 E DATA 3027000200020 MEV ARB-UNITS 3027000200021 7.9920E+00 8.8900E+02 3027000200022 8.7750E+00 2.0930E+03 3027000200023 9.5730E+00 2.7330E+03 3027000200024 1.0385E+01 3.3640E+03 3027000200025 1.1209E+01 4.2840E+03 3027000200026 1.2045E+01 5.1960E+03 3027000200027 1.2894E+01 5.9780E+03 3027000200028 1.3753E+01 7.0150E+03 3027000200029 1.4624E+01 7.7730E+03 3027000200030 1.5505E+01 8.1570E+03 3027000200031 1.6396E+01 8.0670E+03 3027000200032 1.7297E+01 7.4780E+03 3027000200033 1.8208E+01 6.3730E+03 3027000200034 1.9128E+01 5.4710E+03 3027000200035 2.0056E+01 4.2450E+03 3027000200036 2.0993E+01 3.3340E+03 3027000200037 2.1939E+01 2.2760E+03 3027000200038 2.2893E+01 1.6050E+03 3027000200039 2.3855E+01 1.0920E+03 3027000200040 2.4825E+01 7.1800E+02 3027000200041 ENDDATA 22 0 3027000200042 ENDSUBENT 41 0 3027000299999 SUBENT 30270003 20100303 31443027000300001 BIB 3 8 3027000300002 REACTION (92-U-235(N,F)2-HE-4,TER,FY/DE,,SPA/REL) 3027000300003 Ternary fission 3027000300004 INC-SPECT Resonance neutron flux obtained by transmission of 1/E 3027000300005 neutron spectrum through a boron filter of 4.8*10**22 3027000300006 nuclei per cm2. The resonance neutrons spread from 3027000300007 15 eV to 1500 eV. 3027000300008 HISTORY (20100303A) SD: REACTION code was changed 3027000300009 according to EXFOR rules. 3027000300010 ENDBIB 8 0 3027000300011 COMMON 1 3 3027000300012 EN-DUMMY 3027000300013 EV 3027000300014 1.0000E+02 3027000300015 ENDCOMMON 3 0 3027000300016 DATA 2 20 3027000300017 E DATA 3027000300018 MEV ARB-UNITS 3027000300019 7.9920E+00 4.2700E+02 3027000300020 8.7750E+00 5.4100E+02 3027000300021 9.5730E+00 3.1200E+02 3027000300022 1.0385E+01 2.2900E+02 3027000300023 1.1209E+01 2.5300E+02 3027000300024 1.2045E+01 3.1300E+02 3027000300025 1.2894E+01 3.6200E+02 3027000300026 1.3753E+01 3.4000E+02 3027000300027 1.4624E+01 3.9300E+02 3027000300028 1.5505E+01 4.3300E+02 3027000300029 1.6396E+01 4.2000E+02 3027000300030 1.7297E+01 3.9100E+02 3027000300031 1.8208E+01 3.1900E+02 3027000300032 1.9128E+01 2.7200E+02 3027000300033 2.0056E+01 2.3600E+02 3027000300034 2.0993E+01 1.7400E+02 3027000300035 2.1939E+01 1.4700E+02 3027000300036 2.2893E+01 6.9000E+01 3027000300037 2.3855E+01 5.8000E+01 3027000300038 2.4825E+01 3.2000E+01 3027000300039 ENDDATA 22 0 3027000300040 ENDSUBENT 39 0 3027000399999 SUBENT 30270004 20100303 31443027000400001 BIB 5 11 3027000400002 REACTION (92-U-235(N,F)2-HE-4,TER,KE,,MXW) 3027000400003 Ternary fission 3027000400004 INC-SPECT Thermal spectrum at the horizontal channel of the 3027000400005 VVR-S reactor 3027000400006 ANALYSIS The long-range alpha particle distribution was fitted 3027000400007 by a Gaussian distribution with the following results: 3027000400008 - average energy = 15.7 +- 0.5 MeV 3027000400009 - FWHM = 9.4 +- 0.7 MeV 3027000400010 STATUS (DEP,30270002) 3027000400011 HISTORY (20100303A) SD: REACTION code was changed 3027000400012 according to EXFOR rules. 3027000400013 ENDBIB 11 0 3027000400014 COMMON 1 3 3027000400015 EN-DUMMY 3027000400016 EV 3027000400017 2.5300E-02 3027000400018 ENDCOMMON 3 0 3027000400019 DATA 2 1 3027000400020 DATA DATA-ERR 3027000400021 MEV MEV 3027000400022 15.7 0.5 3027000400023 ENDDATA 3 0 3027000400024 ENDSUBENT 23 0 3027000499999 SUBENT 30270005 20100303 31443027000500001 BIB 5 13 3027000500002 REACTION (92-U-235(N,F)2-HE-4,TER,KE,,SPA) 3027000500003 Ternary fission 3027000500004 INC-SPECT Resonance neutron flux obtained by transmission of 1/E 3027000500005 neutron spectrum through a boron filter of 4.8*10**22 3027000500006 nuclei per cm2. The resonance neutrons spread from 3027000500007 15 eV to 1500 eV. 3027000500008 ANALYSIS The long-range alpha particle distribution was fitted 3027000500009 by a Gaussian distribution with the following results: 3027000500010 - FWHM = 9.6 +- 0.5 MeV 3027000500011 - average energy = 15.6 +- 0.4 MeV 3027000500012 STATUS (DEP,30270003) 3027000500013 HISTORY (20100303A) SD: REACTION code was changed 3027000500014 according to EXFOR rules. 3027000500015 ENDBIB 13 0 3027000500016 COMMON 1 3 3027000500017 EN-DUMMY 3027000500018 EV 3027000500019 1.0000E+02 3027000500020 ENDCOMMON 3 0 3027000500021 DATA 2 1 3027000500022 DATA DATA-ERR 3027000500023 MEV MEV 3027000500024 15.6 0.4 3027000500025 ENDDATA 3 0 3027000500026 ENDSUBENT 25 0 3027000599999 ENDENTRY 5 0 3027099999999