ENTRY C2466 20200213 C190C246600000001 SUBENT C2466001 20200213 C190C246600100001 BIB 12 36 C246600100002 TITLE Fission Barrier of Thallium-201 C246600100003 AUTHOR (D.S.Burnett,R.C.Gatti,F.Plasil,P.Buford Price, C246600100004 W.J.Swiatecki,S.G.Thompson) C246600100005 REFERENCE (J,PR,134,B952,1964) C246600100006 #doi:10.1103/PhysRev.134.B952 C246600100007 INSTITUTE (1USABRK) C246600100008 FACILITY (CYCLO,1USABRK) The Berkeley 88-in. variable-energy C246600100009 cyclotron. C246600100010 SAMPLE The gold targets were prepared by standard C246600100011 volatilization methods, using gold of the highest C246600100012 available purity. (Available from Cominco Products, C246600100013 Inc., Spokane, Washington.) Self-supporting foils of C246600100014 thickness ~3 mg/cm2 were obtained, and the thickness C246600100015 of the foils was measured by weighing a known area. A C246600100016 target thickness of ~3 mg/cm2 is roughly optimum for C246600100017 maximum sensitivity for detection of fission fragments.C246600100018 DETECTOR (TRD) The fission-fragment detectors were rectangular C246600100019 strips of mica of width 1 cm, length 1.25 cm, and C246600100020 convenient thickness (~10-2 cm) . The strips were C246600100021 cleaved along layer planes in order to obtain fresh C246600100022 surfaces. C246600100023 METHOD (EXTB) Upon completion of the bombardments the mica C246600100024 detectors were soaked in 27 M hydrofluoric acid for C246600100025 30 min and were washed and dried. Finally the strips C246600100026 were mounted between two microscope cover glasses. C246600100027 The density of fission tracks in a "standard area" C246600100028 was determined by scanning under a microscope with a C246600100029 suitable magnification. C246600100030 ERR-ANALYS (ERR-S) The standard error listed as the uncertainty C246600100031 in the density of tracks per standard strip is purely C246600100032 statistical and does not take into account the C246600100033 possibility of systematic errors. C246600100034 (EN-ERR) Standard error. C246600100035 MONITOR (79-AU-197(A,F),,SIG) C246600100036 MONIT-REF ((MONIT)P0093005,J.R.Huizenga+,J,PR,126,210,1962) C246600100037 HISTORY (20200213C) BP C246600100038 ENDBIB 36 0 C246600100039 NOCOMMON 0 0 C246600100040 ENDSUBENT 39 0 C246600199999 SUBENT C2466002 20200213 C190C246600200001 BIB 2 2 C246600200002 REACTION (79-AU-197(A,F),,SIG) C246600200003 STATUS (TABLE) Table I, page B955. C246600200004 ENDBIB 2 0 C246600200005 COMMON 3 3 C246600200006 EN-NRM MONIT MONIT-ERR C246600200007 MEV MICRO-B MICRO-B C246600200008 39.6 210.0 3.0 C246600200009 ENDCOMMON 3 0 C246600200010 DATA 4 24 C246600200011 EN EN-ERR DATA ERR-S C246600200012 MEV MEV MICRO-B MICRO-B C246600200013 24.9 0.1 2.6E-5 1.49E-5 C246600200014 25.1 0.1 4.92E-5 2.84E-5 C246600200015 25.8 0.1 1.12E-3 0.15E-3 C246600200016 26.5 0.1 2.27E-3 0.33E-3 C246600200017 27.0 0.1 6.14E-3 1.16E-3 C246600200018 27.8 0.1 4.14E-2 0.30E-2 C246600200019 29.0 0.3 1.59E-1 0.09E-1 C246600200020 29.7 0.3 3.56E-1 0.31E-1 C246600200021 30.5 0.1 4.95E-1 0.60E-1 C246600200022 30.8 0.3 7.17E-1 0.60E-1 C246600200023 31.6 0.1 2.69E+0 0.12E+0 C246600200024 32.9 0.1 6.30E+0 0.24E+0 C246600200025 33.0 0.3 7.05E+0 0.42E+0 C246600200026 33.8 0.1 1.07E+1 0.05E+1 C246600200027 35.2 0.3 2.84E+1 0.09E+1 C246600200028 37.4 0.3 1.06E+2 0.05E+2 C246600200029 39.5 0.1 1.38E+2 0.20E+2 C246600200030 50.4 0.4 2.46E+3 0.03E+3 C246600200031 51.1 0.4 2.17E+3 0.03E+3 C246600200032 58.9 0.4 9.47E+3 0.12E+3 C246600200033 61.5 0.4 9.19E+3 0.14E+3 C246600200034 66.5 0.4 1.63E+4 0.03E+4 C246600200035 92.9 0.5 9.40E+4 0.08E+4 C246600200036 119.7 0.5 2.16E+5 0.03E+5 C246600200037 ENDDATA 26 0 C246600200038 ENDSUBENT 37 0 C246600299999 ENDENTRY 2 0 C246699999999