ENTRY 41702 20200929 41904170200000001 SUBENT 41702001 20200929 41904170200100001 BIB 14 41 4170200100002 TITLE Mass distribution of the fragments from the 14.6 MeV 4170200100003 fission of 235U, 238U, and 239Pu 4170200100004 AUTHOR (A.N.Protopopov,G.M.Tolmachev,V.N.Ushatski, 4170200100005 R.V.Venediktova,I.T.Krisuk,L.P.Rodionova,G.V.Iakovleva)4170200100006 I.T.Krisuk=I.T.Krisyuk , G.V.Iakovleva=G.V.Yakovleva 4170200100007 REFERENCE (J,JNE/A,10,80,1959) Engl.translation of AE,5,130,1958 4170200100008 (J,AE,5,130,1958) 4170200100009 (J,SJA,5,963,1958) Engl.translation of AE,5,130,1958 4170200100010 INSTITUTE (4RUSRI) 4170200100011 FACILITY (ACCEL) 170 kV accelerator 4170200100012 INC-SOURCE (D-D) 4170200100013 INC-SPECT 14.6 MeV neutrons. 5.E+8 n/sec with accuracy 10-15%. 4170200100014 MONITOR Relative measurement. 4170200100015 SAMPLE U samples were 4170200100016 - UO(3) for Mo-101 and Mo-102, 4170200100017 - salt UO(2)(NO(3))(2)*6H(2)O for I131+Te-131 4170200100018 - U(3)O(8) for Sr-89, Sr-91, Zr-95, Zr-97, Ru-105, 4170200100019 Ag-111, Ag-113, Cd-115, Ba-140. 4170200100020 Pu samples were oxide PuO(2) of ~1g weight each. 4170200100021 Boron carbide was used to shield the samples against 4170200100022 thermal neutrons. 4170200100023 METHOD (CHSEP) 36 experiments. 4170200100024 Irradiation time - few minutes to 8 hr. 4170200100025 Isotopic dilution method was used to separate fission 4170200100026 products. Carriers were natural isotopic elements in 4170200100027 chemical separation. Radiochemical purification was 4170200100028 used to remove contaminations. Separated powder ( e.g. 4170200100029 ZrO(2), CdO, SrSO(4), BrCrO(4)) was compressed in a 4170200100030 lead cup to form a disk of 8 mm diameter and weighting 4170200100031 40.0+-0.3 mg. 4170200100032 DETECTOR . End-window counter for beta-activity detection. 4170200100033 Detection efficiency of end-window counter was checked4170200100034 by thin (<0.3mg/cm2) sample using 4PI beta counter. 4170200100035 . For Mo-101 and Mo-102 - a counter with increased 4170200100036 efficiency ( ~30%) was used. 4170200100037 CORRECTION For saturation and decay during irradiation. 4170200100038 ADD-RES In Table 1 of J.Nucl.Energy,part A, v.10, p.80,1959 4170200100039 there are data of partial yield of last member of 4170200100040 chains in %, estimated from measured cumulated yields 4170200100041 by assumption of NU from light fragment = 2 or 3. 4170200100042 HISTORY (20200929C) M.M. 4170200100043 ENDBIB 41 0 4170200100044 COMMON 1 3 4170200100045 EN 4170200100046 MEV 4170200100047 14.6 4170200100048 ENDCOMMON 3 0 4170200100049 ENDSUBENT 48 0 4170200199999 SUBENT 41702002 20200929 41904170200200001 BIB 4 17 4170200200002 REACTION ((92-U-235(N,F)ELEM/MASS,CUM,FY)/ 4170200200003 (92-U-235(N,F)42-MO-99,CUM,FY)) 4170200200004 DECAY-DATA (42-MO-99,67.2HR) 67.2+-0.2 hr. 4170200200005 ((1.)38-SR-89,54.D) 4170200200006 ((2.)38-SR-91,9.7HR) 4170200200007 ((3.)40-ZR-95,65.D) 4170200200008 ((4.)40-ZR-97,17.HR) 4170200200009 ((5.)44-RU-105,4.5HR) 4170200200010 ((6.)47-AG-111-G,7.6D) 4170200200011 ((7.)47-AG-113-G,5.3HR) 4170200200012 ((8.)48-CD-115-G,2.3D) 4170200200013 ((9.)53-I-131,8.14D) 4170200200014 ((10.)56-BA-140,12.8D) 4170200200015 ERR-ANALYS (DATA-ERR) Mean square error taking into account all 4170200200016 possible errors in individual measurements. 4170200200017 STATUS (TABLE) Table 1 of 4170200200018 J.Nucl.Energy,part A, v.10, p.80,1959 4170200200019 ENDBIB 17 0 4170200200020 NOCOMMON 0 0 4170200200021 DATA 6 10 4170200200022 ELEMENT MASS ISOMER DATA DATA-ERR DECAY-FLAG 4170200200023 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 4170200200024 38. 89. 0.86 0.04 1. 4170200200025 38. 91. 0.96 0.07 2. 4170200200026 40. 95. 0.97 0.04 3. 4170200200027 40. 97. 1.16 0.05 4. 4170200200028 44. 105. 0.28 0.02 5. 4170200200029 47. 111. 0.22 0.01 6. 4170200200030 47. 113. 0.22 0.01 7. 4170200200031 48. 115. 0. 0.21 0.01 8. 4170200200032 53. 131. 0.83 0.05 9. 4170200200033 56. 140. 0.86 0.04 10. 4170200200034 ENDDATA 12 0 4170200200035 ENDSUBENT 34 0 4170200299999 SUBENT 41702003 20200929 41904170200300001 BIB 4 19 4170200300002 REACTION ((92-U-238(N,F)ELEM/MASS,CUM,FY)/ 4170200300003 (92-U-238(N,F)42-MO-99,CUM,FY)) 4170200300004 DECAY-DATA (42-MO-99,67.2HR) 67.2+-0.2 hr. 4170200300005 ((1.)38-SR-89,54.D) 4170200300006 ((2.)38-SR-91,9.7HR) 4170200300007 ((3.)40-ZR-95,65.D) 4170200300008 ((4.)40-ZR-97,17.HR) 4170200300009 ((5.)42-MO-101,14.6MIN) 4170200300010 ((6.)42-MO-102,11.MIN) 4170200300011 ((7.)44-RU-105,4.5HR) 4170200300012 ((8.)47-AG-111-G,7.6D) 4170200300013 ((9.)47-AG-113-G,5.3HR) 4170200300014 ((10.)48-CD-115-G,2.3D) 4170200300015 ((11.)53-I-131,8.14D) 4170200300016 ((12.)56-BA-140,12.8D) 4170200300017 ERR-ANALYS (DATA-ERR) Mean square error taking into account all 4170200300018 possible errors in individual measurements. 4170200300019 STATUS (TABLE) Table 1 of 4170200300020 J.Nucl.Energy,part A, v.10, p.80,1959 4170200300021 ENDBIB 19 0 4170200300022 NOCOMMON 0 0 4170200300023 DATA 6 12 4170200300024 ELEMENT MASS ISOMER DATA DATA-ERR DECAY-FLAG 4170200300025 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 4170200300026 38. 89. 0.55 0.03 1. 4170200300027 38. 91. 0.65 0.05 2. 4170200300028 40. 95. 0.93 0.04 3. 4170200300029 40. 97. 1.02 0.05 4. 4170200300030 42. 101. 0.99 0.04 5. 4170200300031 42. 102. 0.71 0.08 6. 4170200300032 44. 105. 0.39 0.03 7. 4170200300033 47. 111. 0.18 0.01 8. 4170200300034 47. 113. 0.16 0.01 9. 4170200300035 48. 115. 0. 0.16 0.01 10. 4170200300036 53. 131. 0.91 0.05 11. 4170200300037 56. 140. 0.80 0.04 12. 4170200300038 ENDDATA 14 0 4170200300039 ENDSUBENT 38 0 4170200399999 SUBENT 41702004 20200929 41904170200400001 BIB 4 13 4170200400002 REACTION ((94-PU-239(N,F)ELEM/MASS,CUM,FY)/ 4170200400003 (94-PU-239(N,F)42-MO-99,CUM,FY)) 4170200400004 DECAY-DATA (42-MO-99,67.2HR) 67.2+-0.2 hr. 4170200400005 ((1.)38-SR-89,54.D) 4170200400006 ((2.)38-SR-91,9.7HR) 4170200400007 ((3.)40-ZR-97,17.HR) 4170200400008 ((4.)47-AG-111-G,7.6D) 4170200400009 ((5.)48-CD-115-G,2.3D) 4170200400010 ((6.)56-BA-140,12.8D) 4170200400011 ERR-ANALYS (DATA-ERR) Mean square error taking into account all 4170200400012 possible errors in individual measurements. 4170200400013 STATUS (TABLE) Table 1 of 4170200400014 J.Nucl.Energy,part A, v.10, p.80,1959 4170200400015 ENDBIB 13 0 4170200400016 NOCOMMON 0 0 4170200400017 DATA 6 6 4170200400018 ELEMENT MASS ISOMER DATA DATA-ERR DECAY-FLAG 4170200400019 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 4170200400020 38. 89. 0.44 0.02 1. 4170200400021 38. 91. 0.49 0.03 2. 4170200400022 40. 97. 0.96 0.04 3. 4170200400023 47. 111. 0.34 0.02 4. 4170200400024 48. 115. 0. 0.28 0.02 5. 4170200400025 56. 140. 0.64 0.03 6. 4170200400026 ENDDATA 8 0 4170200400027 ENDSUBENT 26 0 4170200499999 ENDENTRY 4 0 4170299999999