ENTRY 23799 20210414 23012379900000001 SUBENT 23799001 20210414 23012379900100001 BIB 13 64 2379900100002 TITLE Beta-delayed fission of 180Tl 2379900100003 AUTHOR (J.Elseviers,A.N.Andreyev,M.Huyse,P.Van Duppen, 2379900100004 S.Antalic,A.Barzakh,N.Bree,T.E.Cocolios,V.F.Comas, 2379900100005 J.Diriken,D.Fedorov,V.N.Fedosseev,S.Franchoo,L.Ghys, 2379900100006 J.A.Heredia,O.Ivanov,U.Koester,B.A.Marsh,K.Nishio, 2379900100007 R.D.Page,N.Patronis,M.D.Seliverstov,I.Tsekhanovich, 2379900100008 P.Van den Bergh,J.Van de Walle,M.Venhart,S.Vermote, 2379900100009 M.Veselsky,C.Wagemans) 2379900100010 REFERENCE (J,PR/C,88,044321,2013) 2379900100011 INSTITUTE (2BLGLEU,2UK YRK,2JPNJAE,4RUSLIN,2ZZZCER,2GERGSI, 2379900100012 2FR PAR,2FR ILL,2UK LVP,2GRCIOA,2UK MAN,2FR GRA, 2379900100013 3SLKSLO,2BLGGHT) 2379900100014 REL-REF (I,,J.Elseviers+,J,PR/C,84,034307,2011) Exp.details. 2379900100015 FACILITY (OLMS,2ZZZCER) ISOLDE isotope separator. 2379900100016 (OLMS,2FR ILL) Lohengrin spectrometer, for 2379900100017 calibration of fission fragments detectors via 2379900100018 U-235(n,f) reaction and using 241Am reference source. 2379900100019 SAMPLE Tl-180 was produced by 1.4 GeV proton induced 2379900100020 spallation reactions of a thick UCx (50 g/cm2) target 2379900100021 at ISOLDE High Resolution Separator as high-purity 2379900100022 beam ( 30-keV Tl+ ions, ~150 atoms/sec), which was 2379900100023 implanted in a 20 ug/cm2 thick carbon foil. 2379900100024 DECAY-DATA (81-TL-180,1.5SEC) 1.5+-0.2 sec 2379900100025 DETECTOR (SIBAR) Two detectors for FF registration - 2379900100026 .1 Ortec Surface Barrier detector of active area 2379900100027 450 mm2, thickness 300 um, with a central hole of 6 mm 2379900100028 diameter, placed at ~7 mm distance upstream of the 2379900100029 foil; 2379900100030 .2 Canberra PIPS detector 300 mm2 active area, 300 um 2379900100031 thickness, placed at ~4 mm downstream of the foil. 2379900100032 . The total detection efficiency for alpha-particle or 2379900100033 single fission fragment ~ 51.% for any detector. 2379900100034 Coincident fission fragments detection efficiency 2379900100035 about 16%. Measured energy resolution (FWHM) for alpha2379900100036 decays in the 5. - 7. MeV range was ~35 keV. 2379900100037 Energy range of detection 200 keV - 100 MeV. 2379900100038 For calibration the formula was used: 2379900100039 E=(a+a'*m)x+b+b'*m, where m -mass , a,a',b,b' - 2379900100040 constants for particular detectors (systematic error in2379900100041 brackets), determined by calibration procedure to be: 2379900100042 Detector 1(upstream) Detector 2(downstream 2379900100043 a 1.814(18)*10**-3 1.707(17)*10**-3 2379900100044 a' 1.8946(2)*10**-6 2.4191(2)*10**-6 2379900100045 b -0.57(43) 0.94(51) 2379900100046 b' 3.57(44)*10**-2 2.23(52)*10**-2 2379900100047 (HPGE) Three HPGe crystals and planar Ge detector of 2379900100048 "low-energy Ge" type were paced outside the vacuum 2379900100049 chamber to measure gamma and K x-rays in coincidence 2379900100050 with alpha and beta particles and fission fragments. 2379900100051 Typical energy resolution (FWHM) of each - ~3.1 keV 2379900100052 for 1.3 MeV radiation. 2379900100053 . Digital electronics DGF-4C modules. 2379900100054 METHOD (COINC) 2379900100055 CORRECTION For N/Z-value shift - 0.5+-0.5 MeV for detector 1, 2379900100056 0.5+-0.5 MeV for detector 2. 2379900100057 For energy loss in the carbon foil estimated by the 2379900100058 program TRIM simulation to be 0.3+-0.1 MeV for 2379900100059 detector 1 and 1.2+-0.3 MeV for detector 2. 2379900100060 For shift due to angle 45 deg estimated by measurement 2379900100061 at ILL to be 0.3+-0.1 MeV for detector 1 and 2379900100062 1.0+-1.0 MeV for detector 2. 2379900100063 ADD-RES Tl-180 beta-delayed fission probability was measured to2379900100064 be 3.2(2)E-3% 2379900100065 HISTORY (20210414C) M.M. 2379900100066 ENDBIB 64 0 2379900100067 NOCOMMON 0 0 2379900100068 ENDSUBENT 67 0 2379900199999 SUBENT 23799002 20210414 23012379900200001 BIB 4 8 2379900200002 REACTION 1(80-HG-180(0,F),PRE,AP,LF) 2379900200003 2(80-HG-180(0,F),PRE,AP,HF) 2379900200004 MISC-COL (MISC) FWHM of mass distributions 10.9+-0.5 amu - 2379900200005 the same value for LF and HF. 2379900200006 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2379900200007 article 2379900200008 STATUS (TABLE) Page 044321-6 of 2379900200009 Phys.Rrev.Part C,v.88,p.044321,2013 2379900200010 ENDBIB 8 0 2379900200011 NOCOMMON 0 0 2379900200012 DATA 6 1 2379900200013 DATA 1DATA-ERR 1DATA 2DATA-ERR 2MISC MISC-ERR 2379900200014 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2379900200015 80. 1. 100. 1. 10.9 0.5 2379900200016 ENDDATA 3 0 2379900200017 ENDSUBENT 16 0 2379900299999 SUBENT 23799003 20210414 23012379900300001 BIB 4 7 2379900300002 REACTION 1(80-HG-180(0,F),,ZP,LF,,DERIV) 2379900300003 2(80-HG-180(0,F),,ZP,HF,,DERIV) 2379900300004 ANALYSIS ZP was derived by assuming value N/Z=1.25. 2379900300005 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2379900300006 article 2379900300007 STATUS (TABLE) Page 044321-6 of 2379900300008 Phys.Rrev.Part C,v.88,p.044321,2013 2379900300009 ENDBIB 7 0 2379900300010 NOCOMMON 0 0 2379900300011 DATA 4 1 2379900300012 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 2379900300013 NO-DIM NO-DIM NO-DIM NO-DIM 2379900300014 36. 2. 44. 2. 2379900300015 ENDDATA 3 0 2379900300016 ENDSUBENT 15 0 2379900399999 SUBENT 23799004 20210414 23012379900400001 BIB 6 14 2379900400002 REACTION 1(80-HG-180(0,F),PRE,AKE,LF) 2379900400003 2(80-HG-180(0,F),PRE,AKE,HF) 2379900400004 3(80-HG-180(0,F),PRE,AKE,LF+HF) 2379900400005 MISC-COL (MISC) FWHM for corresponding energy distribution 2379900400006 ANALYSIS Fits by Gaussians were done. 2379900400007 FLAG (1.) Deduced under assumption of no neutrons being emit2379900400008 (2.) Deduced under assumption of one neutron emitted. 2379900400009 ERR-ANALYS .TKE total systematic error - 1.3 MeV, 2379900400010 systematic error of energy in detector 1 - 0.6 MeV, 2379900400011 systematic error of energy in detector 2 - 1.2 MeV, 2379900400012 are added to the statistical error of the quoted 2379900400013 energies. 2379900400014 (ERR-S) Statistical error 2379900400015 STATUS (TABLE) Table II of Phys.Rrev.Part C,v.88,p.044321,20132379900400016 ENDBIB 14 0 2379900400017 NOCOMMON 0 0 2379900400018 DATA 13 2 2379900400019 DATA 1ERR-S 1MISC 1MISC-ERR 1DATA 2ERR-S 22379900400020 MISC 2MISC-ERR 2DATA 3ERR-S 3MISC 3MISC-ERR 32379900400021 FLAG 2379900400022 MEV MEV MEV MEV MEV MEV 2379900400023 MEV MEV MEV MEV MEV MEV 2379900400024 NO-DIM 2379900400025 74.1 1.2 11.5 0.6 59.4 1.2 2379900400026 11.3 0.6 133.2 1.4 15.0 0.9 2379900400027 1. 2379900400028 74.6 1.2 11.3 0.6 59.6 1.2 2379900400029 10.7 0.5 134.0 1.4 14.3 1.0 2379900400030 2. 2379900400031 ENDDATA 12 0 2379900400032 ENDSUBENT 31 0 2379900499999 SUBENT 23799005 20210414 23012379900500001 BIB 3 7 2379900500002 REACTION (80-HG-180(0,F)MASS,SEC,FY,,REL) 2379900500003 Units - counts/2amu . 344 coincident events. 2379900500004 ERR-ANALYS Quantization errors: 2379900500005 scale X - 0.040 amu, scale Y - 0.055 arb.units 2379900500006 (DATA-ERR) Type of uncertainty is not explained in the 2379900500007 article 2379900500008 STATUS (CURVE) Fig.3 of Phys.Rrev.Part C,v.88,p.044321,2013 2379900500009 ENDBIB 7 0 2379900500010 COMMON 2 3 2379900500011 MASS-RSL ERR-DIG 2379900500012 NO-DIM ARB-UNITS 2379900500013 1. 0.044 2379900500014 ENDCOMMON 3 0 2379900500015 DATA 3 30 2379900500016 MASS DATA DATA-ERR 2379900500017 NO-DIM ARB-UNITS ARB-UNITS 2379900500018 61. 2.072 1.424 2379900500019 63. 1.087 0.986 2379900500020 65. 2.183 1.314 2379900500021 67. 7.112 2.519 2379900500022 69. 6.127 2.300 2379900500023 71. 9.085 2.957 2379900500024 73. 10.071 3.067 2379900500025 75. 27.158 5.038 2379900500026 77. 50.050 7.119 2379900500027 79. 56.075 7.338 2379900500028 81. 56.075 7.338 2379900500029 83. 49.066 6.900 2379900500030 85. 34.170 5.696 2379900500031 87. 19.056 4.272 2379900500032 89. 15.990 4.053 2379900500033 91. 16.100 3.943 2379900500034 93. 19.167 4.162 2379900500035 95. 34.173 5.696 2379900500036 97. 49.179 6.900 2379900500037 99. 56.080 7.338 2379900500038 101. 56.081 7.339 2379900500039 103. 50.057 7.010 2379900500040 105. 27.166 5.038 2379900500041 107. 10.080 3.067 2379900500042 109. 9.095 2.957 2379900500043 111. 6.138 2.300 2379900500044 113. 7.015 2.629 2379900500045 115. 2.196 1.314 2379900500046 117. 1.101 1.095 2379900500047 119. 2.197 1.314 2379900500048 ENDDATA 32 0 2379900500049 ENDSUBENT 48 0 2379900599999 SUBENT 23799006 20210414 23012379900600001 BIB 4 9 2379900600002 REACTION (80-HG-180(0,F),SEC,FY/DE,HF,REL) 2379900600003 Units - counts/2MeV . 344 coincident events. 2379900600004 EN-SEC (E,HF) Energy of HF fragment. 2379900600005 E-RSL - half width 2379900600006 ERR-ANALYS Quantization errors: 2379900600007 scale X - 0.036 MeV, scale Y - 0.062 arb.units 2379900600008 (DATA-ERR) Type of uncertainty is not explained in the 2379900600009 article 2379900600010 STATUS (CURVE) Fig.4a of Phys.Rrev.Part C,v.88,p.044321,2013 2379900600011 ENDBIB 9 0 2379900600012 COMMON 2 3 2379900600013 E-RSL ERR-DIG 2379900600014 MEV ARB-UNITS 2379900600015 1. 0.056 2379900600016 ENDCOMMON 3 0 2379900600017 DATA 3 18 2379900600018 E DATA DATA-ERR 2379900600019 MEV ARB-UNITS ARB-UNITS 2379900600020 31. 1.291 0.866 2379900600021 35. 1.296 0.866 2379900600022 39. 2.291 1.238 2379900600023 41. 1.303 0.866 2379900600024 43. 2.296 1.238 2379900600025 45. 3.164 1.733 2379900600026 47. 4.280 1.856 2379900600027 49. 7.253 2.599 2379900600028 51. 9.236 2.846 2379900600029 53. 23.223 4.703 2379900600030 55. 34.240 5.693 2379900600031 57. 47.238 6.683 2379900600032 59. 57.141 7.426 2379900600033 61. 60.113 7.673 2379900600034 63. 38.210 6.064 2379900600035 65. 35.242 5.817 2379900600036 67. 13.339 3.465 2379900600037 69. 7.277 2.475 2379900600038 ENDDATA 20 0 2379900600039 ENDSUBENT 38 0 2379900699999 SUBENT 23799007 20210414 23012379900700001 BIB 4 9 2379900700002 REACTION (80-HG-180(0,F),SEC,FY/DE,LF,REL) 2379900700003 Units - counts/2MeV . 2379900700004 EN-SEC (E,LF) Energy of LF fragment 2379900700005 E-RSL - half width 2379900700006 ERR-ANALYS Quantization errors: 2379900700007 scale X - 0.036 MeV, scale Y - 0.062 arb.units 2379900700008 (DATA-ERR) Type of uncertainty is not explained in the 2379900700009 article 2379900700010 STATUS (CURVE) Fig.4a of Phys.Rrev.Part C,v.88,p.044321,2013 2379900700011 ENDBIB 9 0 2379900700012 COMMON 2 3 2379900700013 E-RSL ERR-DIG 2379900700014 MEV ARB-UNITS 2379900700015 1. 0.056 2379900700016 ENDCOMMON 3 0 2379900700017 DATA 3 15 2379900700018 E DATA DATA-ERR 2379900700019 MEV ARB-UNITS ARB-UNITS 2379900700020 55. 1.320 0.866 2379900700021 59. 2.191 1.361 2379900700022 61. 3.307 1.609 2379900700023 63. 4.300 1.856 2379900700024 65. 10.243 3.094 2379900700025 69. 34.257 5.693 2379900700026 71. 53.195 7.178 2379900700027 73. 63.222 7.673 2379900700028 75. 51.219 6.931 2379900700029 77. 39.217 6.188 2379900700030 79. 31.175 5.569 2379900700031 81. 19.296 4.208 2379900700032 83. 15.215 3.837 2379900700033 85. 4.326 1.857 2379900700034 89. 2.351 1.238 2379900700035 ENDDATA 17 0 2379900700036 ENDSUBENT 35 0 2379900799999 SUBENT 23799008 20210414 23012379900800001 BIB 3 9 2379900800002 REACTION (80-HG-180(0,F),SEC,FY/DE,LF+HF,REL) 2379900800003 Units - counts/2MeV . 2379900800004 ERR-ANALYS Quantization errors: 2379900800005 scale X - 0.041 MeV, scale Y - 0.054 arb.units 2379900800006 (DATA-ERR) Type of uncertainty is not explained in the 2379900800007 article 2379900800008 STATUS (CURVE) Fig.5 of Phys.Rrev.Part C,v.88,p.044321,2013 2379900800009 (DEP,23799006) HF energy 2379900800010 (DEP,23799007) LF energy 2379900800011 ENDBIB 9 0 2379900800012 COMMON 1 3 2379900800013 ERR-DIG 2379900800014 ARB-UNITS 2379900800015 0.051 2379900800016 ENDCOMMON 3 0 2379900800017 DATA 3 24 2379900800018 TKE DATA DATA-ERR 2379900800019 MEV ARB-UNITS ARB-UNITS 2379900800020 91. 1.072 0.650 2379900800021 95. 1.071 0.867 2379900800022 107. 2.042 1.408 2379900800023 111. 1.066 0.867 2379900800024 113. 2.040 1.409 2379900800025 115. 2.039 1.408 2379900800026 117. 3.122 1.625 2379900800027 119. 3.121 1.625 2379900800028 121. 9.080 2.925 2379900800029 123. 10.054 3.034 2379900800030 125. 11.028 3.250 2379900800031 127. 27.062 5.092 2379900800032 129. 36.054 5.851 2379900800033 131. 38.004 6.067 2379900800034 133. 52.954 7.151 2379900800035 135. 33.018 5.634 2379900800036 137. 42.010 6.392 2379900800037 139. 24.025 4.767 2379900800038 141. 13.081 3.467 2379900800039 143. 16.006 4.009 2379900800040 145. 5.930 2.492 2379900800041 147. 6.037 2.384 2379900800042 149. 2.028 1.409 2379900800043 151. 3.111 1.625 2379900800044 ENDDATA 26 0 2379900800045 ENDSUBENT 44 0 2379900899999 SUBENT 23799009 20210414 23012379900900001 BIB 4 10 2379900900002 REACTION (80-HG-180(0,F)MASS,SEC,KE,LF+HF) 2379900900003 TKE dependence from mass of heavy fragment is given 2379900900004 on Fig.8 with scale X = mass/180, so 2379900900005 scale X data were multiplied by 180. after digitization2379900900006 MISC-COL (MISC) MASS/180 values directly digitized from Fig.8. 2379900900007 ERR-ANALYS Quantization errors: 2379900900008 scale X - 0.00012*180=0.022 amu, scale Y - 0.063 MeV 2379900900009 (DATA-ERR) Type of uncertainty is not explained in the 2379900900010 article 2379900900011 STATUS (CURVE) Fig.8 of Phys.Rrev.Part C,v.88,p.044321,2013 2379900900012 ENDBIB 10 0 2379900900013 COMMON 1 3 2379900900014 ERR-DIG 2379900900015 MEV 2379900900016 0.048 2379900900017 ENDCOMMON 3 0 2379900900018 DATA 4 9 2379900900019 MASS DATA DATA-ERR MISC 2379900900020 NO-DIM MEV MEV SEE TEXT 2379900900021 90.0 126.86 1.88 0.50 2379900900022 93.6 132.00 1.88 0.52 2379900900023 97.2 130.87 0.88 0.54 2379900900024 100.8 132.38 0.63 0.56 2379900900025 104.4 133.13 1.13 0.58 2379900900026 108.0 126.87 2.51 0.60 2379900900027 111.6 118.72 4.89 0.62 2379900900028 115.2 123.74 7.90 0.64 2379900900029 118.8 104.43 7.65 0.66 2379900900030 ENDDATA 11 0 2379900900031 ENDSUBENT 30 0 2379900999999 ENDENTRY 9 0 2379999999999