ENTRY 22861 20180125 22652286100000001
SUBENT 22861001 20180125 22652286100100001
BIB 12 46 2286100100002
TITLE Measurement of thermal neutron cross-sections and 2286100100003
resonance integrals for Ga-71(n,gamma)Ga-72 and 2286100100004
As-75(n,gamma)As-76 by using Am-241-Be isotopic 2286100100005
neutron source 2286100100006
AUTHOR (M.Karadag,H.Yucel,M.Tan,A.Ozmen) 2286100100007
INSTITUTE (2TUKANR) 2286100100008
(2TUKTUK) Cazi University, Turkey. 2286100100009
REFERENCE (J,NIM/A,501,524,2003) 2286100100010
SAMPLE The irradiations of the samples were carried out within2286100100011
and without a cylindrical cadmium shield case. The 2286100100012
irradiations for eight samples for each element, which 2286100100013
are individually prepared from the fresh stocks, were 2286100100014
repeated four time, that is, a set of four, with and 2286100100015
without Cd-irradiation data for MnO(2), Ga(2)O(3), 2286100100016
As(2)O(3) are obtained. The samples were diluted to 2286100100017
minimize self-shielding during irradiation. For this, 2286100100018
the samples were mechanically mixed with finely grained2286100100019
Al(2)O(3) powder by 98.6-96%, since Al-27 isotope has 2286100100020
low neutron absorption cross section. 2286100100021
The irradiation times for the (n,gamma) reactions of 2286100100022
Mn-55, Ga-71, As-75 were chosen for a period of 2286100100023
3-6 half-lives, yielding enough activity to be measured2286100100024
in gamma-ray counting system. 2286100100025
ADD-RES (COMP) The results are discussed and compared with 2286100100026
previous measurements and the evaluated data in 2286100100027
ENDF/B-VI and JENDL-3.2. 2286100100028
Using the nuclear data and the measured cadmium ratios 2286100100029
for W- and Au-, alpha-epithermal neutron spectrum shape2286100100030
factor has been found to be 0.116+-0.006 for the sample2286100100031
irradiation position. 2286100100032
DETECTOR A reverse-electrode germanium detector with a total 2286100100033
active volume of 100-cm*3. 2286100100034
INC-SPECT *EN-RSL* the energy resolution N-type Ge-detector with 2286100100035
be-window was 1.80-keV for 1332.5-keV of Co-60 and 2286100100036
0.97-keV for 122-keV of Co-57 and its relative 2286100100037
efficiency was 22.6%. 2286100100038
INC-SOURCE (AM-BE) The three 592-GBq Am-241-Be isotopic neutron 2286100100039
sources immersed in paraffin moderator shielded with 2286100100040
lead. 2286100100041
METHOD (ACTIV) 2286100100042
STATUS (TABLE) Tables 6,7 of NIM/A,501,524 2286100100043
HISTORY (20041127C) 2286100100044
(20041222U) Last checking has been done. 2286100100045
(20170824A) SD: FACILITY deleted. INC-SOURCE update. 2286100100046
ERR-ANALYS re-compiled. BIB update in all Subents. 2286100100047
(20180125A) On. Major revision in 004. 2286100100048
ENDBIB 46 0 2286100100049
NOCOMMON 0 0 2286100100050
ENDSUBENT 49 0 2286100199999
SUBENT 22861002 20170824 22652286100200001
BIB 7 27 2286100200002
REACTION (31-GA-71(N,G)31-GA-72,,SIG) 2286100200003
MONITOR (25-MN-55(N,G)25-MN-56,,SIG) 2286100200004
DECAY-DATA (31-GA-72,14.10HR,DG,834.03,0.9563,DG,629.96,0.248) 2286100200005
REL-REF (A,,G.Gleason,J,RRL,23,317,1975) 2286100200006
(A,,T.B.Ryves,J,NE,25,129,1971) 2286100200007
(D,,L.Koester+,J,ZP/A,318,347,1984) 2286100200008
(D,,W.S.Lyon,J,NSE,8,378,1960) 2286100200009
CORRECTION The thermal neutron self-shielding factor is 0.998. 2286100200010
ERR-ANALYS (ERR-T) Total uncertainty includes: 2286100200011
(ERR-S) Statistical error (statistics of +-1.65sigma). 2286100200012
(ERR-1) Error in detector efficiency 2286100200013
(ERR-2) Error in mass sample 2286100200014
(ERR-3) Error in half-life 2286100200015
(ERR-4) Error in branching ratio 2286100200016
(ERR-5) Error in self-shielding factor 2286100200017
(ERR-6) Error in isotopic abundance 2286100200018
(ERR-7) total uncertainty of Mn production includes: 2286100200019
* statistical error - 0.39% 2286100200020
* Error in detector efficiency is 2.75%. 2286100200021
* Error in mass sample is 0.01%. 2286100200022
* Error in half-life is 0.004%. 2286100200023
* Error in branching ratio is 0.30%. 2286100200024
* Error in self-shielding factor is 0.01%. 2286100200025
* Error in monitor thermal neutr. cross-sect. is 0.75%2286100200026
HISTORY (20170824A) SD: ERR-ANALYS re-compiled. BIB update. 2286100200027
MONIT deleted. SF8=MXW deleted. (sigma0 is corrected 2286100200028
for the Westcott factor). COMMENT -> CORRECTION. 2286100200029
ENDBIB 27 0 2286100200030
COMMON 6 3 2286100200031
ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2286100200032
PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2286100200033
2.71 0.01 0.14 0.07 0.01 0.016 2286100200034
ENDCOMMON 3 0 2286100200035
DATA 5 1 2286100200036
EN-MEAN DATA ERR-T ERR-S ERR-7 2286100200037
EV B B PER-CENT PER-CENT 2286100200038
0.0253 4.41 0.18 0.42 0.1 2286100200039
ENDDATA 3 0 2286100200040
ENDSUBENT 39 0 2286100299999
SUBENT 22861003 20180125 22652286100300001
BIB 8 23 2286100300002
REACTION (31-GA-71(N,G)31-GA-72,,RI) 2286100300003
DECAY-DATA (31-GA-72,14.10HR,DG,834.03,0.9563,DG,629.96,0.248) 2286100300004
MONITOR (25-MN-55(N,G)25-MN-56,,RI) 2286100300005
DECAY-MON (25-MN-56,2.5789HR,DG,846.75,0.989) 2286100300006
REL-REF (A,,A.Simonits+,J,JRN,81,397,1984) 2286100300007
(D,,R.Van Der Linden+,J,JRC,11,133,1972) Less on 58% 2286100300008
THAN present measurement. 2286100300009
(D,,S.P.Harris+,J,PR,79,11,1950) 2286100300010
CORRECTION The epithermal self-shielding factors is 0.907. 2286100300011
ERR-ANALYS (ERR-T) Total uncertainty includes: 2286100300012
(ERR-1) error in cadmium ratio is 1.67% 2286100300013
(ERR-2) Error in self-shielding factor 0.15% 2286100300014
(ERR-3) Error in reference thermal neutron cross-sect. 2286100300015
(ERR-4) Error in alpha-shape parameter is 3.02%. 2286100300016
(ERR-5) Error in normalization: 2286100300017
* Error in cadmium ratio is 1.60%. 2286100300018
* Error in self-shielding factor 0.20%. 2286100300019
* Error in reference thermal neutron cross-sect. 0.75%2286100300020
* Error in alpha-shape parameter is 3.61%. 2286100300021
* Monitor resonance integral cross-section 2.14% 2286100300022
HISTORY (20170824A) SD: ERR-ANALYS re-compiled. BIB update. 2286100300023
MONIT deleted. 2286100300024
(20180125U) On. COMMENT->CORRECTION. 2286100300025
ENDBIB 23 0 2286100300026
COMMON 4 3 2286100300027
ERR-1 ERR-2 ERR-3 ERR-4 2286100300028
PER-CENT PER-CENT PER-CENT PER-CENT 2286100300029
1.67 0.15 4.12 3.02 2286100300030
ENDCOMMON 3 0 2286100300031
DATA 4 1 2286100300032
EN-MIN DATA ERR-T ERR-5 2286100300033
EV B B B 2286100300034
0.55 32.3 2.3 0.3 2286100300035
ENDDATA 3 0 2286100300036
ENDSUBENT 35 0 2286100399999
SUBENT 22861004 20180125 22652286100400001
BIB 8 27 2286100400002
REACTION (33-AS-75(N,G)33-AS-76,,SIG) 2286100400003
DECAY-DATA (33-AS-76,25.87HR,DG,559.10,0.45) 2286100400004
REL-REF (D,,W.S.Lyon,J,NSE,8,378,1960) About 61% than the 2286100400005
present measurement. 2286100400006
MONITOR (25-MN-55(N,G)25-MN-56,,SIG) 2286100400007
DECAY-MON (25-MN-56,2.5789HR,DG,846.75,0.989) 2286100400008
CORRECTION The thermal neutron self-shielding factors is 0.997. 2286100400009
ERR-ANALYS (ERR-T) Total uncertainty includes: 2286100400010
(ERR-S) Statistical error (statistics of +-1.65sigma). 2286100400011
(ERR-1) Error in detector efficiency 2286100400012
(ERR-2) Error in mass sample 2286100400013
(ERR-3) Error in half-life 2286100400014
(ERR-4) Error in branching ratio 2286100400015
(ERR-5) Error in self-shielding factor 2286100400016
(ERR-6) Error in isotopic abundance 2286100400017
(ERR-7) Normalization error: 2286100400018
* statistical error - 0.39% 2286100400019
* Error in detector efficiency is 2.75%. 2286100400020
* Error in mass sample is 0.01%. 2286100400021
* Error in half-life is 0.004%. 2286100400022
* Error in branching ratio is 0.30%. 2286100400023
* Error in self-shielding factor is 0.01%. 2286100400024
* Error in monitor thermal neutr. cross-sect. is 0.75%2286100400025
HISTORY (20170824A) SD: ERR-ANALYS re-compiled. BIB update. 2286100400026
MONIT deleted. SF8=MXW deleted. (sigma0 is corrected 2286100400027
for the Westcott factor). 2286100400028
(20180125A) On. MONIT-ERR->ERR-7. COMMENT->CORRECTION. 2286100400029
ENDBIB 27 0 2286100400030
COMMON 6 3 2286100400031
ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2286100400032
PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2286100400033
2.23 0.01 0.19 4.44 0.01 0.016 2286100400034
ENDCOMMON 3 0 2286100400035
DATA 5 1 2286100400036
EN-MEAN DATA ERR-T ERR-S ERR-7 2286100400037
EV B B PER-CENT B 2286100400038
0.0253 4.15 0.24 0.26 0.1 2286100400039
ENDDATA 3 0 2286100400040
ENDSUBENT 39 0 2286100499999
SUBENT 22861005 20180125 22652286100500001
BIB 8 22 2286100500002
REACTION (33-AS-75(N,G)33-AS-76,,RI) 2286100500003
DECAY-DATA (33-AS-76,25.87HR,DG,559.10,0.45) 2286100500004
REL-REF (A,,S.I.Kafala,J,JRN,215,193,1997) 2286100500005
(D,,R.Van Der Linden+,J,JRC,11,133,1972) Less on 35% 2286100500006
than the present measurement. 2286100500007
MONITOR (25-MN-55(N,G)25-MN-56,,RI) 2286100500008
DECAY-MON (25-MN-56,2.5789HR,DG,846.75,0.989) 2286100500009
CORRECTION The epithermal self-shielding factor is 0.900. 2286100500010
ERR-ANALYS (ERR-T) Total uncertainty in As-75 includes: 2286100500011
(ERR-1) error in cadmium ratio is 1.70% 2286100500012
(ERR-2) Error in self-shielding factor 0.50% 2286100500013
(ERR-3) Error in reference thermal neutron cross-sect. 2286100500014
(ERR-4) Error in alpha-shape parameter is 2.77%. 2286100500015
(ERR-5) Normalization error: 2286100500016
* Error in cadmium ratio is 1.60%. 2286100500017
* Error in self-shielding factor 0.20%. 2286100500018
* Error in reference thermal neutron cross-sect. 0.75%2286100500019
* Error in alpha-shape parameter is 3.61%. 2286100500020
* Monitor resonance integral cross-section 2.14% 2286100500021
HISTORY (20170824A) SD: ERR-ANALYS re-compiled. BIB update. 2286100500022
MONIT deleted. COMMENT -> CORRECTION. 2286100500023
(20180125U) On. PART-DET deleted. 2286100500024
ENDBIB 22 0 2286100500025
COMMON 4 3 2286100500026
ERR-1 ERR-2 ERR-3 ERR-4 2286100500027
PER-CENT PER-CENT PER-CENT PER-CENT 2286100500028
1.70 0.50 2.22 2.77 2286100500029
ENDCOMMON 3 0 2286100500030
DATA 4 1 2286100500031
EN-MIN DATA ERR-T ERR-5 2286100500032
EV B B B 2286100500033
0.55 63.5 3.8 0.3 2286100500034
ENDDATA 3 0 2286100500035
ENDSUBENT 34 0 2286100599999
ENDENTRY 5 0 2286199999999