ENTRY 32212 20200312 31953221200000001 SUBENT 32212001 20200312 31953221200100001 BIB 13 40 3221200100002 TITLE High precision measurements of spectrum averaged 3221200100003 total neutron cross section for chromium 3221200100004 AUTHOR (O.O.Gritzay, V.V.Kolotyi, O.I.Kalchenko, P.M.Vorona, 3221200100005 M.L.Gnidak) 3221200100006 INSTITUTE (4UKRIJD) 3221200100007 REFERENCE (J,NSTS,2,389,2002) 3221200100008 FACILITY (REAC,4UKRIJD) Reactor WWR-M 3221200100009 INC-SOURCE (REAC) Neutron filters installed in horizontal channel 3221200100010 of the reactor. 3221200100011 INC-SPECT 24 keV. Average energy of the filtered neutron spectrum3221200100012 (23.850 (+1.262,-2.509))keV (95% response function), 3221200100013 the filter components (g/cm2): 3221200100014 Fe - 236.1, Al - 115.02, S - 19.0, 10B - 1.0. 3221200100015 Neutron flux of about 4.4E5 n/cm2/s. The beam purity 3221200100016 was about 99% - only 1% of neutrons had the energies 3221200100017 70, 120, and 250 keV. 3221200100018 58 keV. Average energy of the filtered neutron spectrum3221200100019 (58.424 (+1.929,-4.535) keV (95% response function), 3221200100020 the filter components (g/cm2): 58Ni - 84.55, S - 157.7,3221200100021 V - 17.4, Pb - 2.5, Al - 5.4, 10B - 0.2. 3221200100022 Neutron flux about 1.E5 n/cm2/s. The purity of beam was3221200100023 about 97.0%, main parasitic lines: 368 keV - 0.62%, 3221200100024 690 keV - 1.29%. 3221200100025 METHOD (FNB,TRN) 3221200100026 DETECTOR (PROPC) Proportional hydrogen counter CHM-38 (the 3221200100027 counter is filled: 90% H2 + 9.56% CH4 + 0.44% He3, 3221200100028 pressure 3 atm.,voltage 2500V) 3221200100029 SAMPLE For background counting rate the polyethylene sample 3221200100030 with thickness 0,731 g/cm2 was used 3221200100031 CORRECTION Correction on the contribution of other chromium 3221200100032 isotopes(Cr-50(0.1%),Cr-53(0.5%),Cr-54(0.1%) to the 3221200100033 Cr-52 total cross section was also made. 3221200100034 STATUS (APRVD) Approved by author(Gritzay) 3221200100035 HISTORY (20031125C) NK and MV 3221200100036 (20100305A) SD: AUTHOR and TITLE letters were changed 3221200100037 on lower case. 3221200100038 (20200225A) OG. ERR-T->DATA-ERR, AV->SPA. STATUS added 3221200100039 and EN-MIN,EN-MAX updated in Sub002-003. 3221200100040 INC-SPECT updated. Sub004 added. 3221200100041 (20200312A) On. ERR-ANALYS moved to 002-003. 3221200100042 ENDBIB 40 0 3221200100043 NOCOMMON 0 0 3221200100044 ENDSUBENT 43 0 3221200199999 SUBENT 32212002 20200312 31953221200200001 BIB 6 17 3221200200002 REACTION (24-CR-52(N,TOT),,SIG,,SPA/RAW) 3221200200003 CORRECTION Not corrected for self-shielding (measurement done 3221200200004 with only one sample) 3221200200005 SAMPLE 52Cr metal powder(enrichment 99,3%),loaded into 3221200200006 aluminum container with internal diameter 31.75 mm., 3221200200007 thickness was 0.1207(4) at/barn. 3221200200008 ERR-ANALYS (DATA-ERR) Total error includes: 3221200200009 - statistical error of the transmission measurements 3221200200010 - measurement of sample dimension and weight 3221200200011 - error due to presence of impurities in sample, etc. 3221200200012 STATUS (TABLE) Table 1 in Nucl.Sci.Techn.Supp.,2,389,2002 3221200200013 (SUPPL,32214003) Calc. neutron sp. after filter 24 keV 3221200200014 (SUPPL,32214004) Calc. neutron sp. after filter 58 keV 3221200200015 (SUPPL,32212004) Exper. neutron sp. after filter 58 keV3221200200016 HISTORY (20200123A) OG. STATUS added. EN-MIN,EN-MAX updated - 3221200200017 correspond to 95% response function. 3221200200018 (20200312A) On. ERR-ANALYS moved from 001. 3221200200019 ENDBIB 17 0 3221200200020 NOCOMMON 0 0 3221200200021 DATA 4 2 3221200200022 EN-MIN EN-MAX DATA DATA-ERR 3221200200023 KEV KEV B B 3221200200024 21.307 25.112 2.099 0.012 3221200200025 53.653 60.333 5.033 0.019 3221200200026 ENDDATA 4 0 3221200200027 ENDSUBENT 26 0 3221200299999 SUBENT 32212003 20200312 31953221200300001 BIB 7 18 3221200300002 REACTION (24-CR-0(N,TOT),,SIG,,SPA/RAW) 3221200300003 CORRECTION Not corrected for self-shielding (measurement done 3221200300004 with only two enogh thick samples) 3221200300005 SAMPLE Cr-nat. metal plates with diameter 29 mm and thickness 3221200300006 0.2415 and 0.3785 at/barn. 3221200300007 FLAG (0.2415) 0.2415 atoms/barn-thick sample used. 3221200300008 (0.3785) 0.3785 atoms/barn-thick sample used. 3221200300009 ERR-ANALYS (DATA-ERR) Total error includes: 3221200300010 - statistical error of the transmission measurements 3221200300011 - measurement of sample dimension and weight 3221200300012 - error due to presence of impurities in sample, etc. 3221200300013 STATUS (TABLE) Table 3 in Nucl.Sci.Techn.Supp.,2,389,2002 3221200300014 (SUPPL,32214003) Calc. neutron sp. after filter 24 keV 3221200300015 (SUPPL,32214004) Calc. neutron sp. after filter 58 keV 3221200300016 (SUPPL,32212004) Exper. neutron sp. after filter 58 keV3221200300017 HISTORY (20200123A) OG. STATUS added. EN-MIN,EN-MAX updated - 3221200300018 correspond to 95% response function. 3221200300019 (20200312A) On. ERR-ANALYS moved from 001. 3221200300020 ENDBIB 18 0 3221200300021 NOCOMMON 0 0 3221200300022 DATA 5 2 3221200300023 EN-MIN EN-MAX DATA DATA-ERR FLAG 3221200300024 KEV KEV B B NO-DIM 3221200300025 21.307 25.112 2.487 0.014 0.3785 3221200300026 53.653 60.333 4.264 0.008 0.2415 3221200300027 ENDDATA 4 0 3221200300028 ENDSUBENT 27 0 3221200399999 SUBENT 32212004 20200224 31953221200400001 BIB 2 282 3221200400002 SUPPL-INF (INCSP) Experimental neutron spectrum after the 58 keV 3221200400003 filter, obtained by differentiation of the spectrum of 3221200400004 the recoil protons 3221200400005 Col. 1: Incident neutron energy (keV) 3221200400006 Col. 2: Neutron flux (rel. units) 3221200400007 --------------------------- 3221200400008 29.4961 5.9731 3221200400009 29.6414 6.1279 3221200400010 29.7867 6.3051 3221200400011 29.9321 6.5072 3221200400012 30.0774 6.7369 3221200400013 30.2228 6.9969 3221200400014 30.3681 7.2889 3221200400015 30.5134 7.6143 3221200400016 30.6588 7.9684 3221200400017 30.8041 8.3461 3221200400018 30.9495 8.7426 3221200400019 31.0948 9.1498 3221200400020 31.2401 9.5650 3221200400021 31.3855 9.9762 3221200400022 31.5308 10.3750 3221200400023 31.6762 10.7549 3221200400024 31.8215 11.1080 3221200400025 31.9668 11.4309 3221200400026 32.1122 11.7211 3221200400027 32.2575 11.9719 3221200400028 32.4029 12.1822 3221200400029 32.5482 12.3492 3221200400030 32.6935 12.4738 3221200400031 32.8389 12.5590 3221200400032 32.9842 12.6037 3221200400033 33.1296 12.6129 3221200400034 33.2749 12.5859 3221200400035 33.4202 12.5279 3221200400036 33.5656 12.4420 3221200400037 33.7109 12.3340 3221200400038 33.8563 12.2109 3221200400039 34.0016 12.0762 3221200400040 34.1469 11.9352 3221200400041 34.2923 11.7963 3221200400042 34.4376 11.6641 3221200400043 34.5830 11.5498 3221200400044 34.7283 11.4592 3221200400045 34.8736 11.3971 3221200400046 35.0190 11.3754 3221200400047 35.1643 11.3930 3221200400048 35.3097 11.4598 3221200400049 35.4550 11.5789 3221200400050 35.6003 11.7520 3221200400051 35.7457 11.9842 3221200400052 35.8910 12.2738 3221200400053 36.0364 12.6219 3221200400054 36.1817 13.0229 3221200400055 36.3270 13.4711 3221200400056 36.4724 13.9613 3221200400057 36.6177 14.4869 3221200400058 36.7631 15.0408 3221200400059 36.9084 15.6098 3221200400060 37.0537 16.1852 3221200400061 37.1991 16.7502 3221200400062 37.3444 17.2940 3221200400063 37.4898 17.8037 3221200400064 37.6351 18.2639 3221200400065 37.7804 18.6672 3221200400066 37.9258 18.9982 3221200400067 38.0711 19.2531 3221200400068 38.2165 19.4279 3221200400069 38.3618 19.5191 3221200400070 38.5071 19.5340 3221200400071 38.6525 19.4762 3221200400072 38.7978 19.3600 3221200400073 38.9432 19.2018 3221200400074 39.0885 19.0160 3221200400075 39.2338 18.8277 3221200400076 39.3792 18.6541 3221200400077 39.5245 18.5190 3221200400078 39.6699 18.4398 3221200400079 39.8152 18.4342 3221200400080 39.9605 18.5131 3221200400081 40.1059 18.6854 3221200400082 40.2512 18.9553 3221200400083 40.3966 19.3148 3221200400084 40.5419 19.7619 3221200400085 40.6872 20.2768 3221200400086 40.8326 20.8467 3221200400087 40.9779 21.4510 3221200400088 41.1233 22.0621 3221200400089 41.2686 22.6633 3221200400090 41.4139 23.2281 3221200400091 41.5593 23.7398 3221200400092 41.7046 24.1809 3221200400093 41.8500 24.5369 3221200400094 41.9953 24.8020 3221200400095 42.1406 24.9699 3221200400096 42.2860 25.0461 3221200400097 42.4313 25.0330 3221200400098 42.5767 24.9420 3221200400099 42.7220 24.7852 3221200400100 42.8673 24.5799 3221200400101 43.0127 24.3441 3221200400102 43.1580 24.0971 3221200400103 43.3034 23.8551 3221200400104 43.4487 23.6342 3221200400105 43.5940 23.4520 3221200400106 43.7394 23.3188 3221200400107 43.8847 23.2479 3221200400108 44.0301 23.2449 3221200400109 44.1754 23.3191 3221200400110 44.3207 23.4682 3221200400111 44.4661 23.6951 3221200400112 44.6114 23.9988 3221200400113 44.7568 24.3738 3221200400114 44.9021 24.8191 3221200400115 45.0474 25.3281 3221200400116 45.1928 25.8973 3221200400117 45.3381 26.5248 3221200400118 45.4835 27.2088 3221200400119 45.6288 27.9471 3221200400120 45.7741 28.7359 3221200400121 45.9195 29.5750 3221200400122 46.0648 30.4598 3221200400123 46.2102 31.3930 3221200400124 46.3555 32.3711 3221200400125 46.5008 33.3891 3221200400126 46.6462 34.4441 3221200400127 46.7915 35.5279 3221200400128 46.9369 36.6361 3221200400129 47.0822 37.7568 3221200400130 47.2275 38.8828 3221200400131 47.3729 40.0059 3221200400132 47.5182 41.1191 3221200400133 47.6636 42.2131 3221200400134 47.8089 43.2852 3221200400135 47.9542 44.3301 3221200400136 48.0996 45.3459 3221200400137 48.2449 46.3393 3221200400138 48.3903 47.3088 3221200400139 48.5356 48.2660 3221200400140 48.6809 49.2191 3221200400141 48.8263 50.1779 3221200400142 48.9716 51.1590 3221200400143 49.1170 52.1688 3221200400144 49.2623 53.2240 3221200400145 49.4076 54.3354 3221200400146 49.5530 55.5150 3221200400147 49.6983 56.7760 3221200400148 49.8437 58.1268 3221200400149 49.9890 59.5770 3221200400150 50.1343 61.1320 3221200400151 50.2797 62.7981 3221200400152 50.4250 64.5803 3221200400153 50.5704 66.4871 3221200400154 50.7157 68.5221 3221200400155 50.8610 70.6906 3221200400156 51.0064 72.9957 3221200400157 51.1517 75.4449 3221200400158 51.2971 78.0398 3221200400159 51.4424 80.7852 3221200400160 51.5877 83.6900 3221200400161 51.7331 86.7561 3221200400162 51.8784 89.9932 3221200400163 52.0238 93.4059 3221200400164 52.1691 97.0010 3221200400165 52.3144 100.7861 3221200400166 52.4598 104.7711 3221200400167 52.6051 108.9629 3221200400168 52.7505 113.3728 3221200400169 52.8958 118.0150 3221200400170 53.0411 122.9033 3221200400171 53.1865 128.0531 3221200400172 53.3318 133.4807 3221200400173 53.4772 139.2008 3221200400174 53.6225 145.2299 3221200400175 53.7678 151.5842 3221200400176 53.9132 158.2769 3221200400177 54.0585 165.3209 3221200400178 54.2039 172.7242 3221200400179 54.3492 180.4910 3221200400180 54.4945 188.6191 3221200400181 54.6399 197.1051 3221200400182 54.7852 205.9389 3221200400183 54.9306 215.1041 3221200400184 55.0759 224.5750 3221200400185 55.2212 234.3271 3221200400186 55.3666 244.3242 3221200400187 55.5119 254.5309 3221200400188 55.6573 264.9049 3221200400189 55.8026 275.3979 3221200400190 55.9479 285.9672 3221200400191 56.0933 296.5582 3221200400192 56.2386 307.1209 3221200400193 56.3840 317.6047 3221200400194 56.5293 327.9535 3221200400195 56.6746 338.1187 3221200400196 56.8200 348.0480 3221200400197 56.9653 357.6893 3221200400198 57.1107 366.9963 3221200400199 57.2560 375.9142 3221200400200 57.4013 384.3941 3221200400201 57.5467 392.3919 3221200400202 57.6920 399.8580 3221200400203 57.8374 406.7500 3221200400204 57.9827 413.0209 3221200400205 58.1280 418.6239 3221200400206 58.2734 423.5159 3221200400207 58.4187 427.6559 3221200400208 58.5641 431.0070 3221200400209 58.7094 433.5320 3221200400210 58.8547 435.1989 3221200400211 59.0001 435.9781 3221200400212 59.1454 435.8480 3221200400213 59.2908 434.7953 3221200400214 59.4361 432.8065 3221200400215 59.5814 429.8791 3221200400216 59.7268 426.0189 3221200400217 59.8721 421.2373 3221200400218 60.0175 415.5569 3221200400219 60.1628 409.0047 3221200400220 60.3081 401.6161 3221200400221 60.4535 393.4334 3221200400222 60.5988 384.5046 3221200400223 60.7442 374.8839 3221200400224 60.8895 364.6297 3221200400225 61.0348 353.8040 3221200400226 61.1802 342.4724 3221200400227 61.3255 330.7020 3221200400228 61.4709 318.5622 3221200400229 61.6162 306.1223 3221200400230 61.7615 293.4523 3221200400231 61.9069 280.6212 3221200400232 62.0522 267.6969 3221200400233 62.1976 254.7455 3221200400234 62.3429 241.8302 3221200400235 62.4882 229.0119 3221200400236 62.6336 216.3476 3221200400237 62.7789 203.8907 3221200400238 62.9243 191.6900 3221200400239 63.0696 179.7902 3221200400240 63.2149 168.2308 3221200400241 63.3603 157.0466 3221200400242 63.5056 146.2667 3221200400243 63.6510 135.9151 3221200400244 63.7963 126.0111 3221200400245 63.9416 116.5687 3221200400246 64.0870 107.5975 3221200400247 64.2323 99.1022 3221200400248 64.3777 91.0837 3221200400249 64.5230 83.5392 3221200400250 64.6683 76.4622 3221200400251 64.8137 69.8436 3221200400252 64.9590 63.6716 3221200400253 65.1044 57.9323 3221200400254 65.2497 52.6100 3221200400255 65.3950 47.6878 3221200400256 65.5404 43.1475 3221200400257 65.6857 38.9701 3221200400258 65.8311 35.1365 3221200400259 65.9764 31.6268 3221200400260 66.1217 28.4214 3221200400261 66.2671 25.5007 3221200400262 66.4124 22.8455 3221200400263 66.5578 20.4367 3221200400264 66.7031 18.2562 3221200400265 66.8484 16.2862 3221200400266 66.9938 14.5097 3221200400267 67.1391 12.9106 3221200400268 67.2845 11.4736 3221200400269 67.4298 10.1840 3221200400270 67.5751 9.0284 3221200400271 67.7205 7.9942 3221200400272 67.8658 7.0695 3221200400273 68.0112 6.2436 3221200400274 68.1565 5.5066 3221200400275 68.3018 4.8494 3221200400276 68.4472 4.2638 3221200400277 68.5925 3.7424 3221200400278 68.7379 3.2787 3221200400279 68.8832 2.8667 3221200400280 69.0285 2.5012 3221200400281 69.1739 2.1775 3221200400282 69.3192 1.8916 3221200400283 HISTORY (20200224C) OG. 3221200400284 ENDBIB 282 0 3221200400285 NOCOMMON 0 0 3221200400286 NODATA 0 0 3221200400287 ENDSUBENT 286 0 3221200499999 ENDENTRY 4 0 3221299999999