ENTRY C2280 20171204 C172C228000000001 SUBENT C2280001 20171204 C172C228000100001 BIB 9 16 C228000100002 TITLE Alpha-Emitting Isomer: Polonium-211 C228000100003 AUTHOR (F.N.Spiess) C228000100004 REFERENCE (J,PR,94,1292,1954) C228000100005 #doi:10.1103/PhysRev.94.1292 C228000100006 INSTITUTE (1USABRK) C228000100007 FACILITY (CYCLO,1USABRK) The 60-inch cyclotron. C228000100008 DETECTOR (IOCH,PROPC) The ionization chamber used was basically C228000100009 a parallel plate chamber with Frisch grid. C228000100010 SAMPLE The ordinary lead and bismuth targets were made by C228000100011 evaporating a thin layer onto one-mil aluminum in a C228000100012 high vacuum chamber. In this way highly uniform, thin C228000100013 (0.1-mg/cm2) samples were produced. C228000100014 METHOD (ACTIV,CHSEP) Chemical separations were made in order C228000100015 to determine the element to which each of the two C228000100016 longer-lived activities should be assigned. C228000100017 HISTORY (20171204C) BP C228000100018 ENDBIB 16 0 C228000100019 NOCOMMON 0 0 C228000100020 ENDSUBENT 19 0 C228000199999 SUBENT C2280002 20171204 C172C228000200001 BIB 4 5 C228000200002 REACTION (82-PB-208(A,N)84-PO-211-G,,SIG) C228000200003 DECAY-DATA (84-PO-211-G,0.52SEC,A) C228000200004 COMMENT Compiler's comment: Authors considered this to be an C228000200005 excited state. C228000200006 STATUS (TABLE) Table I, page 1295. C228000200007 ENDBIB 5 0 C228000200008 NOCOMMON 0 0 C228000200009 DATA 2 13 C228000200010 EN DATA C228000200011 MEV MB C228000200012 18.0 2.6 C228000200013 20.0 1.5 C228000200014 21.5 90.0 C228000200015 23.0 46.0 C228000200016 24.5 30.0 C228000200017 26.0 25.0 C228000200018 27.0 11.5 C228000200019 28.0 9.6 C228000200020 30.5 8.2 C228000200021 33.5 5.9 C228000200022 36.0 5.2 C228000200023 37.5 4.8 C228000200024 39.0 4.1 C228000200025 ENDDATA 15 0 C228000200026 ENDSUBENT 25 0 C228000299999 SUBENT C2280003 20171204 C172C228000300001 BIB 4 5 C228000300002 REACTION (82-PB-208(A,N)84-PO-211-M,,SIG) C228000300003 DECAY-DATA (84-PO-211-M,25.SEC,A) C228000300004 COMMENT Compiler's comment: Authors considered this half-life C228000300005 to be the ground state. C228000300006 STATUS (TABLE) Table I, page 1295. C228000300007 ENDBIB 5 0 C228000300008 NOCOMMON 0 0 C228000300009 DATA 2 8 C228000300010 EN DATA C228000300011 MEV MB C228000300012 18.0 0.01 C228000300013 20.0 0.17 C228000300014 21.5 2.3 C228000300015 23.0 4.6 C228000300016 24.5 5.5 C228000300017 26.0 4.7 C228000300018 27.0 2.7 C228000300019 39.0 2.3 C228000300020 ENDDATA 10 0 C228000300021 ENDSUBENT 20 0 C228000399999 SUBENT C2280004 20171204 C172C228000400001 BIB 3 3 C228000400002 REACTION (82-PB-208(A,P)83-BI-211,,SIG) C228000400003 DECAY-DATA (83-BI-211,130.SEC,A) C228000400004 STATUS (TABLE) Table I, page 1295. C228000400005 ENDBIB 3 0 C228000400006 NOCOMMON 0 0 C228000400007 DATA 3 8 C228000400008 EN DATA DATA-MAX C228000400009 MEV MB MB C228000400010 18.0 0.01 C228000400011 20.0 0.01 C228000400012 21.5 0.01 C228000400013 23.0 0.01 C228000400014 24.5 0.07 C228000400015 26.0 0.11 C228000400016 27.0 0.54 C228000400017 39.0 3.7 C228000400018 ENDDATA 10 0 C228000400019 ENDSUBENT 18 0 C228000499999 SUBENT C2280005 20171204 C172C228000500001 BIB 3 3 C228000500002 REACTION (83-BI-209(A,X)84-PO-211-M,,SIG) C228000500003 DECAY-DATA (84-PO-211-M,25.SEC,A) C228000500004 STATUS (TABLE) Table I, page 1295. C228000500005 ENDBIB 3 0 C228000500006 NOCOMMON 0 0 C228000500007 DATA 3 5 C228000500008 EN DATA DATA-MAX C228000500009 MEV MB MB C228000500010 30.5 0.1 C228000500011 33.0 0.3 C228000500012 34.0 0.4 C228000500013 36.0 0.6 C228000500014 39.0 1.2 C228000500015 ENDDATA 7 0 C228000500016 ENDSUBENT 15 0 C228000599999 ENDENTRY 5 0 C228099999999