ENTRY C2559 20200812 C198C255900000001 SUBENT C2559001 20200812 C198C255900100001 BIB 12 43 C255900100002 TITLE Relative cross-sections for formation of the shielded C255900100003 isomeric pair 134mCs and 134Cs in medium energy fissionC255900100004 AUTHOR (H.Warhanek,R.Vandenbosch) C255900100005 REFERENCE (J,JIN,26,669,1964) C255900100006 #doi:10.1016/0022-1902(64)80308-0 C255900100007 REL-REF (O,L0261002,H.Warhanek+,J,JIN,26,669,1964) C255900100008 Photonuclear data from the same experiment. C255900100009 INSTITUTE (1USAANL,2AUSIRK) C255900100010 FACILITY (CYCLO,1USAANL) The Argonne 60 in. cyclotron. C255900100011 SAMPLE Targets of U-233, U-235, U-238 and Np-237. Usually C255900100012 uranium metal foils about 0.002 in. thick were used C255900100013 as targets. They were covered with pure Al foils C255900100014 which acted as catcher foils for the fission C255900100015 products. In most experiments only the catcher foils C255900100016 were used for preparing the samples, enabling C255900100017 repeated use of the valuable fissionable foils. By C255900100018 bombarding a blank aluminum foil alone it was shown C255900100019 that no disturbing activity was produced in the C255900100020 catcher foils. C255900100021 DETECTOR (NAICR,SCIN) Two 3 in. x 3 in. NaI(T1) crystals. C255900100022 METHOD (CHSEP,ACTIV,COINC) The chemical separation of cesium C255900100023 was done essentially by two consecutive ironhydroxide C255900100024 precipitations preceded and followed by C255900100025 precipitations of cesium as cesium-perchlorate. C255900100026 Initially, the gamma-spectrum was measured with a 3 C255900100027 in. by 3 in. NaI(T1) crystal with conventional C255900100028 electronics and a 200-channel pulse height analyzer. C255900100029 Aluminum absorbers of appropriate thickness C255900100030 prevented beta-particles from entering the crystal. C255900100031 At a later stage of the work, Compton anticoincidence C255900100032 counting equipment became available. Two 4 in. x 4 C255900100033 in. NaI(TI) crystals facing each other and having the C255900100034 sample between them were surrounded by a large C255900100035 plastic scintillator. Moreover any gamma-ray which is C255900100036 in coincidence with another one was counted with C255900100037 reduced efficiency since the second gamma ray in the C255900100038 cascade could also produce anticoincidence pulses in C255900100039 the surrounding plastic scintillator. C255900100040 CORRECTION A correction was applied for gamma-absorption in the C255900100041 aluminum beta-absorbers. C255900100042 DECAY-DATA (55-CS-134-M,2.91HR) Measured by authors. C255900100043 (55-CS-134-G,2.1YR) C255900100044 HISTORY (20200812C) BP C255900100045 ENDBIB 43 0 C255900100046 NOCOMMON 0 0 C255900100047 ENDSUBENT 46 0 C255900199999 SUBENT C2559002 20200812 C198C255900200001 BIB 4 5 C255900200002 REACTION (92-U-238(A,F)55-CS-134-M/T,,SIG/RAT) C255900200003 METHOD Single crystal counting: 242Pu fashioning nucleus. C255900200004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900200005 estimates of the standard deviation to be 15 percent. C255900200006 STATUS (TABLE) Table 1, page 672. C255900200007 ENDBIB 5 0 C255900200008 COMMON 1 3 C255900200009 DATA-ERR C255900200010 PER-CENT C255900200011 15.0 C255900200012 ENDCOMMON 3 0 C255900200013 DATA 2 2 C255900200014 EN DATA C255900200015 MEV NO-DIM C255900200016 42.0 0.81 C255900200017 30.0 0.70 C255900200018 ENDDATA 4 0 C255900200019 ENDSUBENT 18 0 C255900299999 SUBENT C2559003 20200812 C198C255900300001 BIB 4 5 C255900300002 REACTION (92-U-235(A,F)55-CS-134-M/T,,SIG/RAT) C255900300003 METHOD Single crystal counting: 239Pu fashioning nucleus. C255900300004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900300005 estimates of the standard deviation to be 15 percent. C255900300006 STATUS (TABLE) Table 1, page 672. C255900300007 ENDBIB 5 0 C255900300008 COMMON 1 3 C255900300009 DATA-ERR C255900300010 PER-CENT C255900300011 15.0 C255900300012 ENDCOMMON 3 0 C255900300013 DATA 2 2 C255900300014 EN DATA C255900300015 MEV NO-DIM C255900300016 42.0 0.77 C255900300017 27.0 0.56 C255900300018 ENDDATA 4 0 C255900300019 ENDSUBENT 18 0 C255900399999 SUBENT C2559004 20200812 C198C255900400001 BIB 4 5 C255900400002 REACTION (92-U-233(A,F)55-CS-134-M/T,,SIG/RAT) C255900400003 METHOD Single crystal counting: 237Pu fashioning nucleus. C255900400004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900400005 estimates of the standard deviation to be 15 percent. C255900400006 STATUS (TABLE) Table 1, page 672. C255900400007 ENDBIB 5 0 C255900400008 COMMON 1 3 C255900400009 DATA-ERR C255900400010 PER-CENT C255900400011 15.0 C255900400012 ENDCOMMON 3 0 C255900400013 DATA 2 1 C255900400014 EN DATA C255900400015 MEV NO-DIM C255900400016 42.0 0.69 C255900400017 ENDDATA 3 0 C255900400018 ENDSUBENT 17 0 C255900499999 SUBENT C2559005 20200812 C198C255900500001 BIB 4 5 C255900500002 REACTION (93-NP-237(D,F)55-CS-134-M/T,,SIG/RAT) C255900500003 METHOD Single crystal counting: 239Pu fashioning nucleus. C255900500004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900500005 estimates of the standard deviation to be 15 percent. C255900500006 STATUS (TABLE) Table 1, page 672. C255900500007 ENDBIB 5 0 C255900500008 COMMON 1 3 C255900500009 DATA-ERR C255900500010 PER-CENT C255900500011 15.0 C255900500012 ENDCOMMON 3 0 C255900500013 DATA 2 1 C255900500014 EN DATA C255900500015 MEV NO-DIM C255900500016 21.0 0.62 C255900500017 ENDDATA 3 0 C255900500018 ENDSUBENT 17 0 C255900599999 SUBENT C2559006 20200812 C198C255900600001 BIB 4 5 C255900600002 REACTION (92-U-235(A,F)55-CS-134-M/T,,SIG/RAT) C255900600003 METHOD Anticoincidence counting: 239Pu fashioning nucleus. C255900600004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900600005 estimates of the standard deviation to be 15 percent. C255900600006 STATUS (TABLE) Table 1, page 672. C255900600007 ENDBIB 5 0 C255900600008 COMMON 1 3 C255900600009 DATA-ERR C255900600010 PER-CENT C255900600011 15.0 C255900600012 ENDCOMMON 3 0 C255900600013 DATA 2 1 C255900600014 EN DATA C255900600015 MEV NO-DIM C255900600016 42.0 0.58 C255900600017 ENDDATA 3 0 C255900600018 ENDSUBENT 17 0 C255900699999 SUBENT C2559007 20200812 C198C255900700001 BIB 4 5 C255900700002 REACTION (92-U-233(A,F)55-CS-134-M/T,,SIG/RAT) C255900700003 METHOD Anticoincidence counting: 237Pu fashioning nucleus. C255900700004 ERR-ANALYS (DATA-ERR) Considering all possible sources of error C255900700005 estimates of the standard deviation to be 15 percent. C255900700006 STATUS (TABLE) Table 1, page 672. C255900700007 ENDBIB 5 0 C255900700008 COMMON 1 3 C255900700009 DATA-ERR C255900700010 PER-CENT C255900700011 15.0 C255900700012 ENDCOMMON 3 0 C255900700013 DATA 2 1 C255900700014 EN DATA C255900700015 MEV NO-DIM C255900700016 42.0 0.66 C255900700017 ENDDATA 3 0 C255900700018 ENDSUBENT 17 0 C255900799999 SUBENT C2559008 20200812 C198C255900800001 BIB 4 7 C255900800002 REACTION (92-U-233(A,F)55-CS-134-M/T,,SIG/RAT,,MSC) C255900800003 Angular dependence of the isomeric ratio of fragment C255900800004 emission angle C255900800005 SAMPLE 233U as target-material (1 mg/cm2 thick C255900800006 electro-deposited on aluminum backing). C255900800007 METHOD Anticoincidence counting. C255900800008 STATUS (TABLE) Table 2, page 673. C255900800009 ENDBIB 7 0 C255900800010 COMMON 1 3 C255900800011 EN C255900800012 MEV C255900800013 42.0 C255900800014 ENDCOMMON 3 0 C255900800015 DATA 2 2 C255900800016 ANG DATA C255900800017 ADEG NO-DIM C255900800018 90.0 0.69 C255900800019 170.0 0.64 C255900800020 ENDDATA 4 0 C255900800021 ENDSUBENT 20 0 C255900899999 SUBENT C2559009 20200812 C198C255900900001 BIB 4 6 C255900900002 REACTION (92-U-235(A,F)55-CS-134-M/T,,SIG/RAT,,MSC) C255900900003 Angular dependence of the isomeric ratio of fragment C255900900004 emission angle C255900900005 SAMPLE 235U (0.002 in. thick metal foil). C255900900006 METHOD Anticoincidence counting. C255900900007 STATUS (TABLE) Table 2, page 673. C255900900008 ENDBIB 6 0 C255900900009 COMMON 1 3 C255900900010 EN C255900900011 MEV C255900900012 42.0 C255900900013 ENDCOMMON 3 0 C255900900014 DATA 2 2 C255900900015 ANG DATA C255900900016 ADEG NO-DIM C255900900017 90.0 0.59 C255900900018 170.0 0.57 C255900900019 ENDDATA 4 0 C255900900020 ENDSUBENT 19 0 C255900999999 SUBENT C2559010 20200812 C198C255901000001 BIB 4 7 C255901000002 REACTION (92-U-233(A,F)55-CS-134-M/T,,SIG/RAT,,MSC) C255901000003 Angular dependence of the isomeric ratio of fragment C255901000004 emission angle relative to 90 degrees. C255901000005 METHOD Anticoincidence counting. C255901000006 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C255901000007 STATUS (DEP,C2559008) C255901000008 (TABLE) Table 2, page 673. C255901000009 ENDBIB 7 0 C255901000010 COMMON 1 3 C255901000011 EN C255901000012 MEV C255901000013 42.0 C255901000014 ENDCOMMON 3 0 C255901000015 DATA 3 1 C255901000016 ANG DATA DATA-ERR C255901000017 ADEG NO-DIM PER-CENT C255901000018 170.0 0.93 10.0 C255901000019 ENDDATA 3 0 C255901000020 ENDSUBENT 19 0 C255901099999 SUBENT C2559011 20200812 C198C255901100001 BIB 4 7 C255901100002 REACTION (92-U-235(A,F)55-CS-134-M/T,,SIG/RAT,,MSC) C255901100003 Angular dependence of the isomeric ratio of fragment C255901100004 emission angle relative to 90 degrees. C255901100005 METHOD Anticoincidence counting. C255901100006 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C255901100007 STATUS (DEP,C2559009) C255901100008 (TABLE) Table 2, page 673. C255901100009 ENDBIB 7 0 C255901100010 COMMON 1 3 C255901100011 EN C255901100012 MEV C255901100013 42.0 C255901100014 ENDCOMMON 3 0 C255901100015 DATA 3 1 C255901100016 ANG DATA DATA-ERR C255901100017 ADEG NO-DIM PER-CENT C255901100018 170.0 0.97 10.0 C255901100019 ENDDATA 3 0 C255901100020 ENDSUBENT 19 0 C255901199999 ENDENTRY 11 0 C255999999999