ENTRY O1309 20120621 O048O130900000001
SUBENT O1309001 20120621 O048O130900100001
BIB 12 48 O130900100002
TITLE Production of neptunium and plutonium tracers in O130900100003
nuclear reactions of U-236 with 21 to 60-MeV He-3-ions.O130900100004
AUTHOR (J.Aaltonen, P.Dendooven, E.A.Gromova, V.A.Jakovlev, O130900100005
W.Trzaska) O130900100006
INSTITUTE (2SF HLS) O130900100007
(2SF JYV) O130900100008
(4RUSRI) O130900100009
REFERENCE (J,RAK,43,389,2001) In Russian. O130900100010
(J,RDC,43,442,2001) In English. O130900100011
SAMPLE Targets of UO(2) were prepared by multiple thermal O130900100012
decomposition of uranium nitrate cellulose painted on O130900100013
10- and 100-mumeters thick Al-backing. The average O130900100014
thickness of the U-236 layer was about 100-mug/cm**2. O130900100015
The thickness variations were within 3%. O130900100016
ADD-RES (COMP).The results are discussed and compared with O130900100017
previous data on the other reactions yielding the same O130900100018
final products. O130900100019
(TTY-C).The calculated thick-target yields of Pu-236, O130900100020
Pu-237, Pu-238 and Np-235. O130900100021
FACILITY (CYCLO,2SF JYV) The K-130 cyclotron of the University O130900100022
of Jyvaskyla. O130900100023
METHOD (EXTB) The beam current was approximately 3 muA at O130900100024
41-MeV and 0.5 muA at 60-MeV He3 beam. O130900100025
(ACTIV) Irradiation time, 4 hours at 41-MeV and O130900100026
20-hours at 60-MeV. O130900100027
(STTA) In each irradiation six U-236 targets and O130900100028
energy-degrading Al-foils of different thickness were O130900100029
mounted in a multiple target system on two water-cooledO130900100030
Al-plates. The He-3 ion energy at each target was O130900100031
calculated from the range-energy relation-ships in Al O130900100032
and in the target materials. O130900100033
(CHSEP) O130900100034
ERR-ANALYS (EN-ERR1) The initial energy spread of the He-3 ion O130900100035
beam. O130900100036
(EN-ERR2) The energy spread in the last foil. O130900100037
COMMENT -By authors: two irradiations of U-236 targets were O130900100038
performed with 43- and 60-MeV He-3 ion beams. The O130900100039
initial energy spread of the He-3 ion beam was +-0.2- O130900100040
MeV. O130900100041
STATUS (TABLE). From V.A. Jakovlev O130900100042
(APRVD) By V.A.Jakovlev O130900100043
HISTORY (20060206C) O130900100044
(20060413A) The authors changed scanned data by data O130900100045
tables. O130900100046
(20060526A) RAD-DET in 4-th subent is corrected. O130900100047
(20060526U) Last checking has been done. O130900100048
(20120621U) SD: Title of the journal in ref. was O130900100049
changed (SRA -> RDC) O130900100050
ENDBIB 48 0 O130900100051
COMMON 2 3 O130900100052
EN-ERR1 EN-ERR2 O130900100053
MEV MEV O130900100054
0.1 0.6 O130900100055
ENDCOMMON 3 0 O130900100056
ENDSUBENT 55 0 O130900199999
SUBENT O1309002 20060526 O026O130900200001
BIB 6 11 O130900200002
REACTION (92-U-236(HE3,X)93-NP-236-M,,SIG) O130900200003
RAD-DET (92-U-236,A) O130900200004
(94-PU-236,A) O130900200005
DETECTOR (SIBAR) O130900200006
DECAY-DATA (93-NP-236-M,22.5HR) O130900200007
(94-PU-236,2.858YR,A,5753.2,1.) O130900200008
ERR-ANALYS (DATA-ERR).The uncertainty is given by authors. O130900200009
ANALYSIS (DECAY) Time dependence of the ratio of alpha peak O130900200010
counts of 236-Pu to those of 236-U was used to obtain O130900200011
independent production cross sections of Np-236-m and O130900200012
Pu-236. O130900200013
ENDBIB 11 0 O130900200014
NOCOMMON 0 0 O130900200015
DATA 3 12 O130900200016
EN DATA DATA-ERR O130900200017
MEV MB MB O130900200018
21.1 17.6 1.2 O130900200019
26.4 32.2 2.9 O130900200020
31. 37.9 3.4 O130900200021
35.1 38.8 2.9 O130900200022
38.8 36.7 4.3 O130900200023
42.3 32.1 1. O130900200024
42.4 32.9 3.9 O130900200025
46.1 28.3 1.1 O130900200026
49.6 22.9 1.1 O130900200027
53. 22.5 1.1 O130900200028
56.3 20.2 1. O130900200029
59.4 19.9 1.6 O130900200030
ENDDATA 14 0 O130900200031
ENDSUBENT 30 0 O130900299999
SUBENT O1309003 20060526 O026O130900300001
BIB 5 5 O130900300002
REACTION (92-U-236(HE3,X)94-PU-238,(CUM),SIG) O130900300003
RAD-DET (94-PU-238,A) O130900300004
DECAY-DATA (94-PU-238,87.74YR,A,5486.5,1.) O130900300005
DETECTOR (SIBAR) O130900300006
ERR-ANALYS (DATA-ERR).The uncertainty is givnn by authors. O130900300007
ENDBIB 5 0 O130900300008
NOCOMMON 0 0 O130900300009
DATA 3 5 O130900300010
EN DATA DATA-ERR O130900300011
MEV MB MB O130900300012
21.1 1.2 0.6 O130900300013
26.4 2.6 0.4 O130900300014
31. 5.2 1. O130900300015
38.8 5.6 1.4 O130900300016
56.3 4.1 0.5 O130900300017
ENDDATA 7 0 O130900300018
ENDSUBENT 17 0 O130900399999
SUBENT O1309004 20060526 O026O130900400001
BIB 6 13 O130900400002
REACTION (92-U-236(HE3,X)94-PU-236,CUM,SIG) O130900400003
RAD-DET (93-NP-236-M,B-) O130900400004
(94-PU-236,A) O130900400005
DECAY-DATA (93-NP-236-M,22.5HR,B-,537.,0.47) O130900400006
(94-PU-236,2.858YR,A,5753.2,1.) O130900400007
DETECTOR (SIBAR) Surface-barrier silicon detectors with O130900400008
sensitive areas of 200-mm**2 and an energy resolution O130900400009
of 30-KeV at 5767-KeV. O130900400010
ERR-ANALYS (DATA-ERR).The uncertainty is given by authors. O130900400011
STATUS (DEP,O1309002) The data in the SUBENT are O1309002 dataO130900400012
multiplyed by 0.47. Therefore the authors did not O130900400013
obtain direct production Pu-236 across U-236(He3,3n) O130900400014
reaction. O130900400015
ENDBIB 13 0 O130900400016
NOCOMMON 0 0 O130900400017
DATA 3 12 O130900400018
EN DATA DATA-ERR O130900400019
MEV MB MB O130900400020
21.1 8.3 0.5 O130900400021
26.4 15.1 1.4 O130900400022
31. 17.8 1.6 O130900400023
35.1 18.2 1.3 O130900400024
38.8 17.2 2. O130900400025
42.3 15.1 0.5 O130900400026
42.4 15.5 1.8 O130900400027
46.1 13.3 0.5 O130900400028
49.6 10.8 0.5 O130900400029
53. 10.6 0.5 O130900400030
56.3 9.5 0.5 O130900400031
59.4 9.3 0.8 O130900400032
ENDDATA 14 0 O130900400033
ENDSUBENT 32 0 O130900499999
SUBENT O1309005 20060526 O026O130900500001
BIB 6 13 O130900500002
REACTION (92-U-236(HE3,X)93-NP-235,CUM,SIG) Figure 3-2 O130900500003
RAD-DET (93-NP-235,XR) O130900500004
DECAY-DATA (93-NP-235,396.1D,XR,94.665,0.006,XR,98.439,0.0097) O130900500005
COMMENT -By compiler. Np-235 production is possible across O130900500006
U-236(He3,4n)Pu-235 ----electron capture-->Np-235 and O130900500007
(He3,p+3n)Np-235 reactions. O130900500008
-By authors: in order to determine the activity of O130900500009
Np-235 and Pu-237 in the irradiated uranium targets, O130900500010
neptunium and plutonium should be chemically separated O130900500011
from each other and from uranium and fission products. O130900500012
Method of extraction chromatography was used. O130900500013
DETECTOR (GELI,HPGE) O130900500014
ERR-ANALYS (DATA-ERR).The uncertainty is rgiven by authors. O130900500015
ENDBIB 13 0 O130900500016
NOCOMMON 0 0 O130900500017
DATA 3 6 O130900500018
EN DATA DATA-ERR O130900500019
MEV MB MB O130900500020
21.1 4.9 1.6 O130900500021
26.4 9.7 2.5 O130900500022
31. 15.3 3.9 O130900500023
35.1 18.3 3.8 O130900500024
38.8 22.8 4.5 O130900500025
42.4 18.8 4.8 O130900500026
ENDDATA 8 0 O130900500027
ENDSUBENT 26 0 O130900599999
SUBENT O1309006 20060526 O026O130900600001
BIB 6 11 O130900600002
REACTION (92-U-236(HE3,2N)94-PU-237,,SIG) Figure 5. O130900600003
RAD-DET (94-PU-237,XR) O130900600004
DECAY-DATA (94-PU-237,45.2D,XR,97.08,0.13,XR,101.07,0.21) O130900600005
COMMENT -By authors: in order to determine the activity of O130900600006
Np-235 and Pu-237 in the irradiated uranium targets, O130900600007
neptunium and plutonium should be chemically separated O130900600008
from each other and from uranium and fission products. O130900600009
Method of extraction chromatography was used. O130900600010
DETECTOR (GELI,HPGE) O130900600011
ERR-ANALYS (DATA-ERR).The uncertainty is given by authors on O130900600012
figure. An analysis is not given. O130900600013
ENDBIB 11 0 O130900600014
NOCOMMON 0 0 O130900600015
DATA 3 10 O130900600016
EN DATA DATA-ERR O130900600017
MEV MB MB O130900600018
21.1 0.18 0.02 O130900600019
26.4 0.3 0.03 O130900600020
31. 0.35 0.04 O130900600021
35.1 0.4 0.04 O130900600022
38.8 0.41 0.06 O130900600023
42.3 0.35 0.05 O130900600024
46.1 0.31 0.04 O130900600025
53. 0.29 0.05 O130900600026
56.3 0.24 0.04 O130900600027
59.4 0.18 0.04 O130900600028
ENDDATA 12 0 O130900600029
ENDSUBENT 28 0 O130900699999
ENDENTRY 6 0 O130999999999