ENTRY 41377 20200901 41894137700000001 SUBENT 41377001 20200901 41894137700100001 BIB 12 36 4137700100002 TITLE Study of delayed neutrons decay curves for 235U and 4137700100003 239Pu fission due to thermal neutrons . 4137700100004 AUTHOR (S.B.Borzakov, Yu.S.Zamyatnin, Ts.Panteleev, 4137700100005 S.S.Pavlov, I.Ruskov) 4137700100006 INSTITUTE (4ZZZDUB) 4137700100007 REFERENCE (J,YK,,(2),5,1999) Main Reference 4137700100008 (R,INDC(CCP)-426,7,2001) 4137700100009 Engl.transl. of J,YK,1999,(2),5,1999 . 4137700100010 (J,PNE,41,125,2002) 4137700100011 FACILITY (REAC,4ZZZDUB) Pulse fast reactor IBR-2 at average 4137700100012 power 2 MWt, pulse frequency 5 Hz, pulse power 4137700100013 1350 MWt 4137700100014 INC-SOURCE (THCOL) Curved mirror neutron guide being part of 4137700100015 'Isomer' device including thermal neutron's 4137700100016 cutter and detectors placed in a moderator 4137700100017 INC-SPECT Thermal spectrum of moderated neutrons 4137700100018 DETECTOR (TELES,PROPC,PROPC) Battery of 12 He-3 counters 4137700100019 METHOD Periodic irradiation of the sample with an irradiation 4137700100020 frequency of 1.25 Hz, which was achieved by reducing 4137700100021 the rotation frequency of the chopper. 4137700100022 The data were accumulated over 40 hours for 235U and 4137700100023 86 hours for 239Pu. 4137700100024 CORRECTION Background was determined by measurements with a Cd 4137700100025 filter in the beam, amounted to no more than 1% of the 4137700100026 total neutron count. 4137700100027 ERR-ANALYS (ERR-S,0.3,0.4) Statistical error 4137700100028 HISTORY (20000629C) + + Compiled at the Centre - CJD + + 4137700100029 (20000629U) Last checking has been done. 4137700100030 (20131115A) Ref. R,INDC(CCP)-426,7,2001 . 4137700100031 BIB information was updated. 4137700100032 PART/FIS -> PRT/FIS 4137700100033 GRP code was deleted from REACTION SF5 in Subents 4137700100034 002-003. 4137700100035 (20190325A) Subents 002,003 were corrected. 4137700100036 Minor correction in STATUS. 4137700100037 (20200901A) Ref. J,PNE,41,125,2002 was added. 4137700100038 ENDBIB 36 0 4137700100039 COMMON 1 3 4137700100040 EN-DUMMY 4137700100041 EV 4137700100042 2.53E-02 4137700100043 ENDCOMMON 3 0 4137700100044 ENDSUBENT 43 0 4137700199999 SUBENT 41377002 20200901 41894137700200001 BIB 5 40 4137700200002 REACTION (92-U-235(N,F)ELEM/MASS,DL/CUM,NU,,MXW) 4137700200003 SAMPLE Metallic sample of 7 gram weight. 4137700200004 DECAY-DATA ((1.)33-AS-85,2.02SEC) 4137700200005 ((2.)33-AS-86,0.95SEC) 4137700200006 ((3.)33-AS-87,0.49SEC) 4137700200007 ((4.)34-SE-89,0.41SEC) 4137700200008 ((5.)35-BR-87,55.6SEC) 4137700200009 ((6.)35-BR-88,16.23SEC) 4137700200010 ((7.)35-BR-89,4.37SEC) 4137700200011 ((8.)35-BR-90,1.91SEC) 4137700200012 ((9.)35-BR-91,0.542SEC) 4137700200013 ((10.)35-BR-92,0.31SEC) 4137700200014 ((11.)36-KR-93,1.29SEC) 4137700200015 ((12.)36-KR-94,0.22SEC) 4137700200016 ((13.)37-RB-93,5.91SEC) 4137700200017 ((14.)37-RB-94,2.73SEC) 4137700200018 ((15.)37-RB-95,0.379SEC) 4137700200019 ((16.)37-RB-96,0.199SEC) 4137700200020 ((17.)37-RB-97,0.169SEC) 4137700200021 ((18.)39-Y-98-G,0.549SEC) 4137700200022 ((19.)39-Y-98-M,2.05SEC) 4137700200023 ((20.)39-Y-99,1.48SEC) 4137700200024 ((21.)39-Y-100,0.73SEC) 4137700200025 ((22.)39-Y-101,0.38SEC) 4137700200026 ((23.)39-Y-102,0.3SEC) 4137700200027 ((24.)51-SB-135,1.7SEC) 4137700200028 ((25.)52-TE-136,17.7SEC) 4137700200029 ((26.)52-TE-137,2.5SEC) 4137700200030 ((27.)53-I-137,24.5SEC) 4137700200031 ((28.)53-I-138,6.27SEC) 4137700200032 ((29.)53-I-139,2.29SEC) 4137700200033 ((30.)53-I-140,0.61SEC) 4137700200034 ((31.)53-I-141,0.47SEC) 4137700200035 ((32.)55-CS-143,1.79SEC) 4137700200036 ((33.)55-CS-144,0.99SEC) 4137700200037 ((34.)55-CS-145,0.586SEC) 4137700200038 STATUS (TABLE) From Table 1 of J.Yad.Konst.,is.2,5,1999 4137700200039 Table 1 of J.Progress in Nuclear Energy,v.41,p.125,20024137700200040 HISTORY (20190325A) CUM was added in SF5. 4137700200041 DECAY-FLAG, ISOMER were introduced instead of HL 4137700200042 ENDBIB 40 0 4137700200043 NOCOMMON 0 0 4137700200044 DATA 5 34 4137700200045 ELEMENT MASS ISOMER DATA DECAY-FLAG 4137700200046 NO-DIM NO-DIM NO-DIM PRT/FIS NO-DIM 4137700200047 33. 85. 0.103E-02 1. 4137700200048 33. 86. 0.013E-02 2. 4137700200049 33. 87. 0.007E-02 3. 4137700200050 34. 89. 0.007E-02 4. 4137700200051 35. 87. 0.054E-02 5. 4137700200052 35. 88. 0.119E-02 6. 4137700200053 35. 89. 0.176E-02 7. 4137700200054 35. 90. 0.131E-02 8. 4137700200055 35. 91. 0.034E-02 9. 4137700200056 35. 92. 0.008E-02 10. 4137700200057 36. 93. 0.01E-02 11. 4137700200058 36. 94. 0.006E-02 12. 4137700200059 37. 93. 0.046E-02 13. 4137700200060 37. 94. 0.162E-02 14. 4137700200061 37. 95. 0.06E-02 15. 4137700200062 37. 96. 0.02E-02 16. 4137700200063 37. 97. 0.009E-02 17. 4137700200064 39. 98. 0. 0.01E-02 18. 4137700200065 39. 98. 1. 0.105E-02 19. 4137700200066 39. 99. 0.041E-02 20. 4137700200067 39. 100. 0.005E-02 21. 4137700200068 39. 101. 0.007E-02 22. 4137700200069 39. 102. 0.008E-02 23. 4137700200070 51. 135. 0.025E-02 24. 4137700200071 52. 136. 0.015E-02 25. 4137700200072 52. 137. 0.014E-02 26. 4137700200073 53. 137. 0.233E-02 27. 4137700200074 53. 138. 0.087E-02 28. 4137700200075 53. 139. 0.059E-02 29. 4137700200076 53. 140. 0.015E-02 30. 4137700200077 53. 141. 0.008E-02 31. 4137700200078 55. 143. 0.024E-02 32. 4137700200079 55. 144. 0.014E-02 33. 4137700200080 55. 145. 0.013E-02 34. 4137700200081 ENDDATA 36 0 4137700200082 ENDSUBENT 81 0 4137700299999 SUBENT 41377003 20200901 41894137700300001 BIB 5 34 4137700300002 REACTION (94-PU-239(N,F)ELEM/MASS,DL/CUM,NU,,MXW) 4137700300003 SAMPLE Metallic sample 10 gram weight 4137700300004 DECAY-DATA ((1.)33-AS-85,2.02SEC) 4137700300005 ((2.)35-BR-89,4.37SEC) 4137700300006 ((3.)35-BR-87,55.6SEC) 4137700300007 ((4.)35-BR-88,16.23SEC) 4137700300008 ((5.)35-BR-90,1.91SEC) 4137700300009 ((6.)35-BR-91,0.542SEC) 4137700300010 ((7.)37-RB-93,5.91SEC) 4137700300011 ((8.)37-RB-94,2.73SEC) 4137700300012 ((9.)37-RB-95,0.379SEC) 4137700300013 ((10.)37-RB-96,0.199SEC) 4137700300014 ((11.)37-RB-97,0.169SEC) 4137700300015 ((12.)39-Y-98-G,0.549SEC) 4137700300016 ((13.)39-Y-98-M,2.05SEC) 4137700300017 ((14.)39-Y-99,1.48SEC) 4137700300018 ((15.)39-Y-100,0.73SEC) 4137700300019 ((16.)39-Y-101,0.38SEC) 4137700300020 ((17.)41-NB-105,2.95SEC) 4137700300021 ((18.)51-SB-135,1.7SEC) 4137700300022 ((19.)52-TE-136,17.7SEC) 4137700300023 ((20.)53-I-137,24.5SEC) 4137700300024 ((21.)53-I-138,6.27SEC) 4137700300025 ((22.)53-I-139,2.29SEC) 4137700300026 ((23.)53-I-140,0.61SEC) 4137700300027 ((24.)55-CS-143,1.79SEC) 4137700300028 ((25.)55-CS-144,0.99SEC) 4137700300029 ((26.)55-CS-145,0.586SEC) 4137700300030 STATUS (TABLE) From Table 2 of J.Yad.Konst.,is.2,5,1999 4137700300031 Table 2 of J.Progress in Nuclear Energy,v.41,p.125,20024137700300032 HISTORY (20190325A) CUM was added in SF5. 4137700300033 DECAY-FLAG, ISOMER were introduced instead of HL 4137700300034 Br-82 -> Br-89 in data block ( misprint in YK Table 2,4137700300035 see half-life and Table 1, group 4). 4137700300036 ENDBIB 34 0 4137700300037 NOCOMMON 0 0 4137700300038 DATA 5 26 4137700300039 ELEMENT MASS ISOMER DATA DECAY-FLAG 4137700300040 NO-DIM NO-DIM NO-DIM PRT/FIS NO-DIM 4137700300041 33. 85. 0.0165E-02 1. 4137700300042 35. 87. 0.017E-02 3. 4137700300043 35. 88. 0.034E-02 4. 4137700300044 35. 89. 0.043E-02 2. 4137700300045 35. 90. 0.0333E-02 5. 4137700300046 35. 91. 0.0046E-02 6. 4137700300047 37. 93. 0.019E-02 7. 4137700300048 37. 94. 0.0635E-02 8. 4137700300049 37. 95. 0.031E-02 9. 4137700300050 37. 96. 0.007E-02 10. 4137700300051 37. 97. 0.0215E-03 11. 4137700300052 39. 98. 0. 0.0085E-02 12. 4137700300053 39. 98. 1. 0.044E-02 13. 4137700300054 39. 99. 0.027E-02 14. 4137700300055 39. 100. 0.0034E-02 15. 4137700300056 39. 101. 0.0027E-02 16. 4137700300057 41. 105. 0.0117E-02 17. 4137700300058 51. 135. 0.0117E-02 18. 4137700300059 52. 136. 0.009E-02 19. 4137700300060 53. 137. 0.157E-02 20. 4137700300061 53. 138. 0.061E-02 21. 4137700300062 53. 139. 0.0297E-02 22. 4137700300063 53. 140. 0.0031E-02 23. 4137700300064 55. 143. 0.0103E-02 24. 4137700300065 55. 144. 0.0044E-02 25. 4137700300066 55. 145. 0.0032E-02 26. 4137700300067 ENDDATA 28 0 4137700300068 ENDSUBENT 67 0 4137700399999 SUBENT 41377004 20200901 41894137700400001 BIB 3 5 4137700400002 REACTION (92-U-235(N,F),DL/GRP,NU,,MXW) 4137700400003 SAMPLE Metallic U, weight 7 gram 4137700400004 STATUS (TABLE) From Table 1 of J.Yad.Konst.,is.2,5,1999 4137700400005 Table 1 of J.Progress in Nuclear Energy,v.41,p.125,20024137700400006 (DEP,41377002) Yields from prcursors 4137700400007 ENDBIB 5 0 4137700400008 NOCOMMON 0 0 4137700400009 DATA 2 7 4137700400010 HL DATA 4137700400011 SEC PRT/FIS 4137700400012 55.6 0.055-02 4137700400013 24.5 0.233-02 4137700400014 16.4 0.134-02 4137700400015 4.9 0.309-02 4137700400016 2.07 0.664-02 4137700400017 0.494 0.159-02 4137700400018 0.218 0.045-02 4137700400019 ENDDATA 9 0 4137700400020 ENDSUBENT 19 0 4137700499999 SUBENT 41377005 20200901 41894137700500001 BIB 3 5 4137700500002 REACTION (94-PU-239(N,F),DL/GRP,NU,,MXW) 4137700500003 SAMPLE Metallic Pu, weight 10 gram 4137700500004 STATUS (TABLE) From Table 2 of J.Yad.Konst.,is.2,5,1999 4137700500005 Table 2 of J.Progress in Nuclear Energy,v.41,p.125,20024137700500006 (DEP,41377003) Yields from prcursors 4137700500007 ENDBIB 5 0 4137700500008 NOCOMMON 0 0 4137700500009 DATA 2 7 4137700500010 HL DATA 4137700500011 SEC PRT/FIS 4137700500012 55.6 0.017-02 4137700500013 24.5 0.157-02 4137700500014 16.5 0.043-02 4137700500015 5.4 0.123-02 4137700500016 2.097 0.248-02 4137700500017 0.46 0.061-02 4137700500018 0.191 0.915-04 4137700500019 ENDDATA 9 0 4137700500020 ENDSUBENT 19 0 4137700599999 ENDENTRY 5 0 4137799999999