ENTRY 23594 20210318 22992359400000001 SUBENT 23594001 20210318 22992359400100001 BIB 11 33 2359400100002 TITLE Energy and time-of-flight correlation experiments with2359400100003 solid-state detectors for mass distribution measurement2359400100004 of 235U fission fragments 2359400100005 AUTHOR (F.Shiraishi,M.Hosoe) 2359400100006 REFERENCE (J,NIM,66,130,1968) 2359400100007 INSTITUTE (2JPNYOK) 2359400100008 FACILITY (REAC,2JPNYOK) TRIGA Mark II reactor, 100 kW. 2359400100009 INC-SOURCE (THCOL) Thermal column of the reactor 2359400100010 INC-SPECT Thermal neutron flux 10**10 n/(cm2*sec) at sample and 2359400100011 start detector positions, 10**8 n/(cm2*sec) at stop 2359400100012 detector position. 2359400100013 SAMPLE Uranium foil was made by surmounting uranium nitrate 2359400100014 (20 ug/cm2), enriched to 93% in U-235, on a nylon 2359400100015 backing ( 10 ug/cm2 ). 2359400100016 DETECTOR (SOLST) Two silicon solid-state detectors of surface 2359400100017 barrier and transmission type. Effective area of each 2359400100018 detector - about 2 cm2, silicon base thickness - 2359400100019 0.15 mm. 2359400100020 Start detector was placed at 1.2 cm from sample, 2359400100021 stop detector - at about 1 m distance in the opposite 2359400100022 direction. 2359400100023 Cf-252 spon. fis. source was used for calibration. 2359400100024 METHOD (TOF) Flight path 1 m. 2359400100025 Time, energy, mass resolution (FWHM) for fission 2359400100026 fragments: 2359400100027 Light fragment Heavy fragment 2359400100028 Time,ns 0.43-0.79 (0.60-1.1%) 0.61-0.87(0.58-0.83%) 2359400100029 Energy,MeV 1.0 (1.0%) 1.4 (2.0%) 2359400100030 Mass,amu 1.5 (1.6%) 3.2 (2.3%) 2359400100031 See all details in Table 1 of 2359400100032 Nuclear Instrum.and Methods in Physics Res., 2359400100033 v.66,p.130,1968. 2359400100034 HISTORY (20210318C) M.M. 2359400100035 ENDBIB 33 0 2359400100036 COMMON 1 3 2359400100037 EN-DUMMY 2359400100038 EV 2359400100039 0.0253 2359400100040 ENDCOMMON 3 0 2359400100041 ENDSUBENT 40 0 2359400199999 SUBENT 23594002 20210318 22992359400200001 BIB 4 9 2359400200002 REACTION (92-U-235(N,F)MASS,SEC,FY,,MXW) 2359400200003 CORRECTION Corrected for pulse-height defect. 2359400200004 Not corrected for experimental mass resolution (FWHM) 2359400200005 ( 1.5 amu for light, 3.2 amu for heavy fragments). 2359400200006 ERR-ANALYS Quantization errors: 2359400200007 scale X - 0.051 amu, scale Y - 0.010 %/fis. 2359400200008 STATUS (CURVE) Fig.7 of 2359400200009 Nuclear Instrum.and Methods in Physics Res., 2359400200010 v.66,p.130,1968. 2359400200011 ENDBIB 9 0 2359400200012 COMMON 2 3 2359400200013 MASS-ERR-D ERR-DIG 2359400200014 NO-DIM PC/FIS 2359400200015 0.053 0.0066 2359400200016 ENDCOMMON 3 0 2359400200017 DATA 2 79 2359400200018 MASS DATA 2359400200019 NO-DIM PC/FIS 2359400200020 74.671 0.066 2359400200021 75.488 0.107 2359400200022 76.510 0.085 2359400200023 77.634 0.106 2359400200024 78.554 0.147 2359400200025 79.679 0.167 2359400200026 80.498 0.312 2359400200027 81.522 0.560 2359400200028 82.543 0.498 2359400200029 83.466 0.767 2359400200030 84.493 1.243 2359400200031 85.521 1.762 2359400200032 86.552 2.591 2359400200033 87.484 3.628 2359400200034 88.201 3.793 2359400200035 89.335 4.706 2359400200036 90.266 5.639 2359400200037 91.293 6.136 2359400200038 92.207 5.638 2359400200039 93.342 6.633 2359400200040 94.358 6.073 2359400200041 95.284 6.632 2359400200042 96.300 6.155 2359400200043 97.321 6.051 2359400200044 98.238 5.843 2359400200045 99.473 6.589 2359400200046 100.280 5.593 2359400200047 101.190 4.887 2359400200048 102.300 3.662 2359400200049 103.310 2.583 2359400200050 104.120 1.732 2359400200051 105.340 1.171 2359400200052 106.350 0.632 2359400200053 107.270 0.216 2359400200054 108.190 0.154 2359400200055 109.410 0.070 2359400200056 110.540 0.090 2359400200057 111.460 0.069 2359400200058 112.480 0.068 2359400200059 113.400 0.068 2359400200060 114.520 0.088 2359400200061 115.440 0.088 2359400200062 116.460 0.087 2359400200063 117.480 0.108 2359400200064 118.610 0.086 2359400200065 119.430 0.065 2359400200066 120.550 0.065 2359400200067 121.470 0.085 2359400200068 122.590 0.105 2359400200069 123.510 0.167 2359400200070 124.540 0.312 2359400200071 125.460 0.498 2359400200072 126.890 0.601 2359400200073 127.820 1.078 2359400200074 129.050 1.928 2359400200075 130.390 3.110 2359400200076 131.530 4.250 2359400200077 132.460 5.163 2359400200078 133.590 5.577 2359400200079 134.930 6.448 2359400200080 136.260 6.655 2359400200081 137.380 6.592 2359400200082 138.400 6.446 2359400200083 139.630 6.217 2359400200084 140.640 5.594 2359400200085 141.970 6.009 2359400200086 142.990 5.365 2359400200087 144.810 3.622 2359400200088 145.930 3.102 2359400200089 146.940 2.293 2359400200090 148.050 1.608 2359400200091 149.480 1.047 2359400200092 150.500 0.797 2359400200093 152.030 0.486 2359400200094 153.450 0.319 2359400200095 154.480 0.235 2359400200096 155.800 0.152 2359400200097 157.030 0.068 2359400200098 158.150 0.047 2359400200099 ENDDATA 81 0 2359400200100 ENDSUBENT 99 0 2359400299999 ENDENTRY 2 0 2359499999999