ENTRY O0621 20151210 O056O062100000001 SUBENT O0621001 20151210 O056O062100100001 BIB 15 31 O062100100002 TITLE Charge distribution in the fission of 232-Th O062100100003 AUTHOR (S.H.Freid,J.L.Anderson,G.R.Choppin) O062100100004 INSTITUTE (1USAFSU) O062100100005 REFERENCE (J,JIN,30,3155,1968) O062100100006 REL-REF (R,,C.F.Williamson+,R,CEA-2189,1962). Range-Energy TblsO062100100007 FACILITY (VDGT,1USAFSU) O062100100008 SAMPLE Circular targets, 1.84 cm diam., were cut from 1.5 mm O062100100009 thick natural thorium foil. To prevent the loss of O062100100010 fission products recoiling from the front and back O062100100011 surfaces, the targets were mounted between two pure O062100100012 aluminum catcher foils of 1 mm thickness. O062100100013 METHOD (EXTB,SITA,BCINT,REC,CHSEP,GSPEC,BSPEC) O062100100014 Beam energy degradation through the target assembly O062100100015 was calculated from range-energy tables - see REL-REF. O062100100016 DETECTOR 1(PROPC) Windowless 2Pi-flow proportional counter. O062100100017 2(NAICR) Na-I crystal. O062100100018 PART-DET 1(B-) O062100100019 2(DG) O062100100020 ANALYSIS (DECAY). O062100100021 COMMENT - By Authors - Mean energy of the incident particles inO062100100022 the target is listed in the data section. O062100100023 ADD-RES (A-DIS) Fission product formation cross sections. O062100100024 (Z-DIS) Charge distribution for fission products. O062100100025 STATUS (TABLE) Data from Tabl.1 and ref. text. O062100100026 HISTORY (19980216C) By Khlopin'S Institute - AP. O062100100027 (19980407A) Deuteron data are included. O062100100028 (20000420U) Last checking has been done. O062100100029 (20000424A) DATE is corrected O062100100030 (20151210A) SD: Subents 004,005 added. Cosmetic O062100100031 corrections in all Subents. Two refs from REL-REF movedO062100100032 to Subents 004,005. O062100100033 ENDBIB 31 0 O062100100034 NOCOMMON 0 0 O062100100035 ENDSUBENT 34 0 O062100199999 SUBENT O0621002 20151210 O056O062100200001 BIB 5 24 O062100200002 REACTION (90-TH-232(P,F),,SIG) O062100200003 REL-REF (D,P0028002,G.R.Choppin+,J,PR,131,2149,1963) This O062100200004 experiment used solid state detectors. O062100200005 (R,O0661002,H.A.Tewes+,J,PR,88,860,1952) Data are used O062100200006 to construct mass distribution curve for proton beam. O062100200007 ANALYSIS (AREA) The total fission cross sections were O062100200008 determined from the integrated area under the mass O062100200009 yield curves. O062100200010 In order to determine the fractional chain yield for O062100200011 each nuclide, the cumulative yield for each of their O062100200012 respective mass chains must be known. For this goal: O062100200013 * mass yield curves at 9.3 MeV from Tewes and James O062100200014 (see REL-REF) normalized to present data at mass O062100200015 number 83, measured as 83Br; O062100200016 * mass yield curve at 11.5 MeV was compiled by O062100200017 plotting the data for each mass chain given by Tewes O062100200018 and James (see REL-REF) for 6.3,9.3,13.3, and 17.8 MeV O062100200019 proton energies and interpolating at 11.3 MeV. O062100200020 EN-MAX - Entering energy of beam. O062100200021 EN-MIN - Emerging energy of beam. O062100200022 STATUS (TABLE) From the text on p.3157 of JIN,30,3155,1968 O062100200023 (DEP,O0661004) O062100200024 HISTORY (20151210A) SD: ANYLYSIS, STATUS, REL-REF were added. O062100200025 MISC1 -> EN-MAX; MISC2 -> EN-MIN O062100200026 ENDBIB 24 0 O062100200027 NOCOMMON 0 0 O062100200028 DATA 4 2 O062100200029 EN-MEAN DATA EN-MAX EN-MIN O062100200030 MEV MB MEV MEV O062100200031 9.5 21. 10. 9.11 O062100200032 11.3 75. 12. 10.54 O062100200033 ENDDATA 4 0 O062100200034 ENDSUBENT 33 0 O062100299999 SUBENT O0621003 20151210 O056O062100300001 BIB 5 23 O062100300002 REACTION (90-TH-232(D,F),,SIG) O062100300003 REL-REF (D,P0028006,G.R.Choppin+,J,PR,131,2149,1963) This O062100300004 experiment used solid state detectors. O062100300005 (R,C2199001,M.V.Ramaniah+,J,JIN,24,1185,1962) Data are O062100300006 used to construct mass distrib. curve for proton beam. O062100300007 ANALYSIS (AREA) The total fission cross sections were O062100300008 determined from the integrated area under the mass O062100300009 yield curves. O062100300010 In order to determine the fractional chain yield for O062100300011 each nuclide, the cumulative yield for each of their O062100300012 respective mass chains must be known. For this goal: O062100300013 the mass yield curve for 11.5 MeV deuteron fission O062100300014 was estimated from the data given by Ramaniah and Wahl O062100300015 (see REL-REF) for the 9.5 MeV deuteron fission of O062100300016 252Th. The agreement with these curves was checked by O062100300017 measuring the cumulative yields of masses 83, O062100300018 84, 93, 99, 111, 113, 131, and 138. O062100300019 EN-MAX - Entering energy of beam. O062100300020 EN-MIN - Emerging energy of beam. O062100300021 STATUS (TABLE) From the text on p.3157 of JIN,30,3155,1968 O062100300022 (DEP,O0661005) O062100300023 HISTORY (20151210A) SD: ANYLYSIS, STATUS, REL-REF were added. O062100300024 MISC1 -> EN-MAX; MISC2 -> EN-MIN O062100300025 ENDBIB 23 0 O062100300026 NOCOMMON 0 0 O062100300027 DATA 4 1 O062100300028 EN-MEAN DATA EN-MAX EN-MIN O062100300029 MEV MB MEV MEV O062100300030 11.5 66. 12. 10.94 O062100300031 ENDDATA 3 0 O062100300032 ENDSUBENT 31 0 O062100399999 SUBENT O0621004 20151210 O056O062100400001 BIB 3 5 O062100400002 REACTION (90-TH-232(P,F)ELEM/MASS,,SIG) O062100400003 ERR-ANALYS (DATA-ERR) The error limits represent the differences O062100400004 in replicate determinations. Where no deviations are O062100400005 listed, only one determination was performed. O062100400006 HISTORY (20151210C) SD O062100400007 ENDBIB 5 0 O062100400008 NOCOMMON 0 0 O062100400009 DATA 6 35 O062100400010 EN-MEAN ELEMENT MASS ISOMER DATA DATA-ERR O062100400011 MEV NO-DIM NO-DIM NO-DIM MB MB O062100400012 9.5 35. 82. 0.00257 0.0005O062100400013 9.5 35. 83. 0.331 0.045O062100400014 9.5 37. 86. 0.00139 O062100400015 9.5 39. 90. 0.0211 0.004O062100400016 9.5 39. 91. 0.139 0.003O062100400017 9.5 39. 93. 0.965 0.114O062100400018 9.5 41. 95. 0.140 0.028O062100400019 9.5 41. 96. 0.221 0.044O062100400020 9.5 41. 97. 0.643 0.006O062100400021 9.5 42. 99. 0.485 0.100O062100400022 9.5 47. 111. 0.166 0.023O062100400023 9.5 47. 112. 0.156 0.003O062100400024 9.5 47. 113. 0.130 0.026O062100400025 9.5 53. 131. 0.458 0.014O062100400026 9.5 55. 134. 0.00245 0.00027O062100400027 9.5 55. 136. 0.0359 0.0072O062100400028 9.5 55. 138. 0.844 0.169O062100400029 11.3 35. 82. 0.00532 0.0011O062100400030 11.3 35. 83. 1.21 0.24O062100400031 11.3 35. 84. 1.39 0.28O062100400032 11.3 37. 86. 0.0781 O062100400033 11.3 39. 90. 0.0716 O062100400034 11.3 39. 91. 0.275 0.055O062100400035 11.3 39. 93. 3.59 0.72O062100400036 11.3 41. 95. 0.417 0.083O062100400037 11.3 41. 96. 0.0627 0.0031O062100400038 11.3 41. 97. 0.186 0.022O062100400039 11.3 42. 99. 1.99 0.35O062100400040 11.3 47. 111. 0.275 0.055O062100400041 11.3 47. 112. 0.104 0.021O062100400042 11.3 47. 113. 0.836 0.167O062100400043 11.3 53. 131. 4.58 0.916O062100400044 11.3 55. 134. 1. 0.0115 0.00015O062100400045 11.3 55. 136. 0.171 0.0085O062100400046 11.3 55. 138. 4.47 0.89O062100400047 ENDDATA 37 0 O062100400048 ENDSUBENT 47 0 O062100499999 SUBENT O0621005 20151210 O056O062100500001 BIB 3 5 O062100500002 REACTION (90-TH-232(D,F)ELEM/MASS,,SIG) O062100500003 ERR-ANALYS (DATA-ERR) The error limits represent the differences O062100500004 in replicate determinations. Where no deviations are O062100500005 listed, only one determination was performed. O062100500006 HISTORY (20151210C) SD O062100500007 ENDBIB 5 0 O062100500008 COMMON 1 3 O062100500009 EN-MEAN O062100500010 MEV O062100500011 11.5 O062100500012 ENDCOMMON 3 0 O062100500013 DATA 5 18 O062100500014 ELEMENT MASS ISOMER DATA DATA-ERR O062100500015 NO-DIM NO-DIM NO-DIM MB MB O062100500016 35. 82. 0.00075 O062100500017 35. 83. 1.06 O062100500018 35. 84. 1.46 O062100500019 37. 86. 0.00317 O062100500020 39. 90. 0.0201 O062100500021 39. 91. 0.308 0.033 O062100500022 39. 93. 5.70 1.14 O062100500023 41. 95. 0.188 O062100500024 41. 96. 0.00492 O062100500025 41. 97. 0.10 O062100500026 42. 99. 2.2 0.44 O062100500027 47. 111. 0.759 O062100500028 47. 112. 0.112 O062100500029 47. 113. 0.658 O062100500030 53. 131. 3.57 O062100500031 55. 134. 1. 0.00195 O062100500032 55. 136. 0.0382 O062100500033 55. 138. 3.58 O062100500034 ENDDATA 20 0 O062100500035 ENDSUBENT 34 0 O062100599999 ENDENTRY 5 0 O062199999999