ENTRY 20511 20080410 21952051100000001 SUBENT 20511001 20080410 21952051100100001 BIB 12 30 2051100100002 REFERENCE (R,CEA-R-4563,197404) in French 2051100100003 TITLE The 144La decay (T(1/2)= 41 sec.) 2051100100004 AUTHOR (E.Monnand, R.Brissot, L-C.Carraz, F.Schussler, 2051100100005 A.Moussa) 2051100100006 INSTITUTE (2FR GRE) 2051100100007 SAMPLE 144La is the fission product of natU in the first 2051100100008 method, the fission product of 90% enriched 235U in 2051100100009 the second method. 2051100100010 DETECTOR (GELI) Coaxial 50 cm3 Ge(Li) detector. 2051100100011 Resolution of 2.1 KEV at 1.33 MeV. 2051100100012 PART-DET (G) Gammas 2051100100013 METHOD - Isotopic separation 2051100100014 The 'Ariel' isotopic separator is used. 2051100100015 (CHSEP)An aqueous solution with 2 mg of natU is 2051100100016 irradiated for 5 sec in the 'siloe' 2051100100017 reactor (C.E.N. Grenoble) in a flux of 2051100100018 about 5.E+13 n/cm**2/sec, then transferred 2051100100019 in 3 sec to the lab. Precipitation takes 2051100100020 in total 30 sec. 2051100100021 ERR-ANALYS (DATA-ERR) No information given 2051100100022 ADD-RES (DECAY) T(1/2) = 41 +/- 1 2051100100023 COMMENT - All decay lines have been studied but only those with2051100100024 highest intensity have been used for the measurement 2051100100025 of the half-life (397.7, 541.6, 844.8 KeV). 2051100100026 - Spectrum shape and temperature is unknown. 2051100100027 Compiler assumed kT=0.0253 eV. 2051100100028 HISTORY (19740704C) 2051100100029 (20080321A) - 4 digits year, upper to lower cases 2051100100030 - ADD-RES added 2051100100031 - EN-DUMMY added 2051100100032 ENDBIB 30 0 2051100100033 COMMON 1 3 2051100100034 EN-DUMMY 2051100100035 EV 2051100100036 0.0253 2051100100037 ENDCOMMON 3 0 2051100100038 ENDSUBENT 37 0 2051100199999 SUBENT 20511002 20080410 21952051100200001 BIB 6 9 2051100200002 REACTION (57-LA-144(N,G)57-LA-145,,SPC,,REL) 2051100200003 MONITOR Relative to 397.7 KeV line as 100 2051100200004 FLAG (1.) Approximately 2051100200005 COMMENT ISO-QUANT: (57-LA-144,NG,SPC,REL) 2051100200006 STATUS (TABLE) Table 1 of CEA-R-4563 (1974) 2051100200007 HISTORY (19740704C) 2051100200008 (20050810A) Converted from ISO-QUANT 2051100200009 (20080321A) - Heading RATIO changed to DATA 2051100200010 - NO-DIM changed to ARB-UNITS 2051100200011 ENDBIB 9 0 2051100200012 NOCOMMON 0 0 2051100200013 DATA 5 10 2051100200014 E E-RSL DATA DATA-ERR FLAG 2051100200015 MEV MEV ARB-UNITS ARB-UNITS NO-DIM 2051100200016 3.9770E-01 1.0000E-04 1.0000E+02 2051100200017 5.4160E-01 2.0000E-04 4.2000E+01 3.0000E+00 2051100200018 5.8570E-01 4.0000E-04 1.0000E+01 3.0000E+00 2051100200019 7.0550E-01 5.0000E-04 4.0000E+00 2.0000E+00 2051100200020 7.3500E-01 5.0000E-04 8.0000E+00 3.0000E+00 2051100200021 8.4480E-01 3.0000E-04 2.0000E+01 3.0000E+00 2051100200022 1.5250E+00 2.0000E-03 4.0000E+00 1. 2051100200023 1.6320E+00 2.0000E-03 2.0000E+00 1. 2051100200024 1.7160E+00 2.0000E-03 2.5000E+00 1. 2051100200025 1.9450E+00 2.0000E-03 2.5000E+00 1. 2051100200026 ENDDATA 12 0 2051100200027 ENDSUBENT 26 0 2051100299999 ENDENTRY 2 0 2051199999999