ENTRY O0648 20120604 O048O064800000001
SUBENT O0648001 20120604 O048O064800100001
BIB 19 52 O064800100002
TITLE Asymmetric fission of bismuth O064800100003
AUTHOR (T.T.Sugihara,J.Roesmer,J.W.Meadows Jr) O064800100004
INSTITUTE (1USACLK,1USAHRV) O064800100005
REFERENCE (J,PR,121,1179,1961) O064800100006
REL-REF (I,,T.T.Sugihara+,J,RSI,24,511,1953) Description of theO064800100007
Detectors. O064800100008
(R,,D.Strominger+,J,RMP,30,585,1958) Decay Data. O064800100009
(R,,T.T.Sugihara+,J,PR,108,1264,1957) Corrections to O064800100010
Beta Counting Rates. O064800100011
FACILITY (SYNCY,1USAHRV) O064800100012
SAMPLE Targets, 100 mg/cm**2 thick, 1*2 cm size, were O064800100013
prepared from bismuth metal. Impurities, by weight: O064800100014
uranium, 1.5*10**(-6); zinc,1.9+-0.3*10**(-6). O064800100015
METHOD (INTB,SITA,ACTIV,MOSEP,REC,RCHEM,BSPEC). O064800100016
DETECTOR (GEMUC) Flow beta geiger counters. For details see O064800100017
REL-REF. O064800100018
PART-DET (B-). O064800100019
MONITOR (83-BI-209(P,F)38-SR-91,CUM,SIG) Relative O064800100020
monitor. O064800100021
((MONIT)29-CU-65(P,N+P)29-CU-64,,SIG) O064800100022
Absolute Monitor. O064800100023
MONIT-REF (B0054006,J.W.Meadows,J,PR,91,885,1953) O064800100024
for absolute monitor O064800100025
ANALYSIS (DECAY) Nuclides were identified by chemical behavior, O064800100026
half-life, and beta absorption curves. O064800100027
(AREA) Total fission cross sections were obtained by O064800100028
summing the mass distributions. O064800100029
CORRECTION Performed: Recoil loss of bismuth fission fragments, O064800100030
never more Than 0.5%. O064800100031
Negligible: Formation of the studied products in O064800100032
interactions with the uranium and zinc impurities. O064800100033
COMMENT -By Authors- The incident energy values quoted here O064800100034
are most probable values. The spread in energy is O064800100035
about 10 MeV. O064800100036
-By Compiler- A correction should have been performed O064800100037
that takes into account a strong energy dependence of O064800100038
The fission cross section. O064800100039
-By Compiler- The specified product of the absolute O064800100040
monitor reaction could be formed also through O064800100041
Cu-63(n,gamma) reaction due to low-energy neutron O064800100042
background. O064800100043
ERR-ANALYS (DATA-ERR) Complete analysis is not given by authors. O064800100044
The Quoted errors do not include the uncertainties in O064800100045
the monitor cross section. O064800100046
ADD-RES (A-DIS) Fission product yields. O064800100047
STATUS (TABLE) From Tabl.1 of PR,121,1179,1961 O064800100048
HISTORY (19980505C) By Khlopin's Institute - A.P. O064800100049
(19980604A) Monitor is corrected. O064800100050
(19980604U) Last checking has been done. O064800100051
(20000424A) DATE is corrected O064800100052
(20120604A) SD; SF9=EXP deleted from REACTION code O064800100053
in Subent 2; cosmetic corrections. O064800100054
ENDBIB 52 0 O064800100055
NOCOMMON 0 0 O064800100056
ENDSUBENT 55 0 O064800199999
SUBENT O0648002 20120604 O048O064800200001
BIB 1 1 O064800200002
REACTION (83-BI-209(P,F),,SIG) O064800200003
ENDBIB 1 0 O064800200004
COMMON 1 3 O064800200005
DATA-ERR O064800200006
PER-CENT O064800200007
40. O064800200008
ENDCOMMON 3 0 O064800200009
DATA 3 2 O064800200010
EN DATA MONIT O064800200011
MEV MB MB O064800200012
36. 1.9 348. O064800200013
58. 11.3 254. O064800200014
ENDDATA 4 0 O064800200015
ENDSUBENT 14 0 O064800299999
ENDENTRY 2 0 O064899999999