ENTRY 22271 20170130 22582227100000001
SUBENT 22271001 20170130 22582227100100001
BIB 13 48 2227100100002
TITLE Measurement of the neutron capture rate of the 2227100100003
12C(n,g)13C reaction at stellar energy 2227100100004
AUTHOR (Y.Nagai, M.Igashira K.Takeda, N.Mukai, S.Motoyama, 2227100100005
F.Uesawa, H.Kitazawa, T.Fukuda) 2227100100006
INSTITUTE (2JPNTIT,2JPNTOK) 2227100100007
REFERENCE (J,AJ,372,683,1991) 2227100100008
(J,NIM/B,56-57,492,1991) Same cross sections in text 2227100100009
FACILITY (VDG,2JPNTIT) 3.2 MV Pelletron 2227100100010
INC-SOURCE (P-LI7) Protons (Ep=1.898 MeV, ~9 uA at a repetition 2227100100011
rate of 2 MHz, pulse width of 1.5 ns) on natLi 2227100100012
metallic layers evaporated on to a Cu disk 2227100100013
INC-SPECT Most probable energy of 30 keV. Thermal neutron 2227100100014
captures were discriminated by time-of-flight. 2227100100015
SAMPLE Natural reactor grade carbon disk (5.4 cm in diam., 2227100100016
1.5 cm in thick) 2227100100017
Standard Au sample (5.5 cm in diam., 0.17 cm in thick).2227100100018
The samples were placed on the beam axis at a distance 2227100100019
of 8.6 cm away from the neutron production target. 2227100100020
C, Au and blank runs were done cyclically. 2227100100021
METHOD (TOF,PHD,PHWT) 2227100100022
DETECTOR (NAICR) 7.6 cm (diam.) and 15.2 cm thick NaI(Tl) 2227100100023
detector surrounded by 25.4 cm (diam.) and 28.0 cm 2227100100024
thick annular NaI(Tl) detector. Set at 125 deg with 2227100100025
respect to the proton beam direction and 80 cm away 2227100100026
from the capture sample. 2227100100027
(GLASD) 4.5 x 4.5 x 0.1 cm3 6Li glass time-of-flight 2227100100028
detector. Set at 14 deg with respect to the proton 2227100100029
beam. 2227100100030
CORRECTION Corrected for 2227100100031
- gamma-ray absorption in the sample 2227100100032
- sample position dependence of gamma-ray detection 2227100100033
efficiency 2227100100034
- Neutron self-shielding and multiple scattering 2227100100035
STATUS (TABLE) Table 1 of Astrophys.J.372(1991)683 2227100100036
HISTORY (19931226C) N.O. 2227100100037
(19950420E) 2227100100038
(19961022A) * * Corrected by S. Maev 2227100100039
this ENTRY combined with 22272 reference moved in 2227100100040
proper Subents 2227100100041
Facility and Monitor code corrected in SAN 001 * * 2227100100042
(20080622A) References moved to SAN 001 2227100100043
Last corrections have been done - SM 2227100100044
(20121209A) SD: Vol.of ref. NIM/B was corrected: 2227100100045
(56/57 -> 56-57). Title of E-LVL-FIN in Subent 006 2227100100046
was changed. 2227100100047
(20161027A) M.M. Ref. J,AJ,372,683,1991 was added. 2227100100048
BIB information was updated. 2227100100049
(20170130A) On. 7Li(n,g) data sets returned to 22272. 2227100100050
ENDBIB 48 0 2227100100051
NOCOMMON 0 0 2227100100052
ENDSUBENT 51 0 2227100199999
NOSUBENT 22271002 20170130 22582227100200001
NOSUBENT 22271003 20170130 22582227100300001
NOSUBENT 22271004 20170130 22582227100400001
SUBENT 22271005 20170130 22582227100500001
BIB 5 10 2227100500002
REACTION (6-C-12(N,G)6-C-13,,SPC,,SPA/REL) 2227100500003
REL-REF (R,,F.Ajzenberg-Selove,J,NP/A,449,1,1986) 2227100500004
gamma-ray branching ratio of 13C*(2nd,3rd exc.states) 2227100500005
FLAG (0.) capture state -> ground state 2227100500006
(1.) capture state -> 1st excited state 2227100500007
(2.) capture state -> 2nd excited state 2227100500008
(3.) capture state -> 3rd excited state 2227100500009
ERR-ANALYS (DATA-ERR) No information on source of uncertainty 2227100500010
HISTORY (20080622U) Reference moved to SAN 001 2227100500011
(20170130A) On. Data table revised. 2227100500012
ENDBIB 10 0 2227100500013
COMMON 1 3 2227100500014
EN-MEAN 2227100500015
KEV 2227100500016
30. 2227100500017
ENDCOMMON 3 0 2227100500018
DATA 4 4 2227100500019
E DATA DATA-ERR FLAG 2227100500020
MEV ARB-UNITS ARB-UNITS NO-DIM 2227100500021
4.98 1.51 0.41 0. 2227100500022
1.89 4.42 0.45 1. 2227100500023
1.29 0.79 0.39 2. 2227100500024
1.12 1.00 0.50 3. 2227100500025
ENDDATA 6 0 2227100500026
ENDSUBENT 25 0 2227100599999
SUBENT 22271006 20170130 22582227100600001
BIB 7 11 2227100600002
REACTION (6-C-12(N,G)6-C-13,PAR,SIG,,SPA) 2227100600003
MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2227100600004
MONIT-REF (,S.Mughabghab,3,ENDF/B-V,1379,1979) 2227100600005
FLAG (1.) These values are swapped in Table 1 of 2227100600006
Nucl.Instrum.Meth.B56/57(1991)492 due to a mistake 2227100600007
(Yasuki Nagai, 2017-01-30) 2227100600008
ERR-ANALYS (DATA-ERR) No information on source of uncertainty 2227100600009
STATUS (DEP,22271005) gamma-ray intensities 2227100600010
HISTORY (20080622U) Reference moved to SAN 001 2227100600011
(20121209A) SD: Title of E-LVL-FIN -> E-LVL. 2227100600012
(20170130A) On. (n,g2) and (n,g3) values swapped. 2227100600013
ENDBIB 11 0 2227100600014
COMMON 1 3 2227100600015
EN-MEAN 2227100600016
KEV 2227100600017
30. 2227100600018
ENDCOMMON 3 0 2227100600019
DATA 4 4 2227100600020
E-LVL DATA DATA-ERR FLAG 2227100600021
MEV MICRO-B MICRO-B NO-DIM 2227100600022
0. 3.3 0.9 2227100600023
3.09 9.6 1.3 2227100600024
3.68 1.7 0.8 1. 2227100600025
3.85 2.2 1.1 1. 2227100600026
ENDDATA 6 0 2227100600027
ENDSUBENT 26 0 2227100699999
SUBENT 22271007 20170130 22582227100700001
BIB 4 10 2227100700002
REACTION (6-C-12(N,G)6-C-13,,SIG,,SPA) 2227100700003
STATUS (DEP,22271006) Partial cross sections 2227100700004
ERR-ANALYS (ERR-T) Total uncertainty propagated from 2227100700005
- statistical error of prompt gamma rays (10-33%), 2227100700006
- detector efficiency, (3-5%), 2227100700007
(ERR-1) pulse-heigh weighting technique (5%), 2227100700008
(ERR-2) neutron flux normalization (5%), 2227100700009
(MONIT-ERR) Au standard cross section (5%) 2227100700010
HISTORY (20080622U) Reference moved to SAN 001 2227100700011
(20170130A) On. REACTION(SF8): SPA added. 2227100700012
ENDBIB 10 0 2227100700013
NOCOMMON 0 0 2227100700014
DATA 6 1 2227100700015
EN-MEAN DATA ERR-T ERR-1 ERR-2 MONIT-ERR 2227100700016
KEV MICRO-B MICRO-B PER-CENT PER-CENT PER-CENT 2227100700017
30. 16.8 2.1 5. 5. 5. 2227100700018
ENDDATA 3 0 2227100700019
ENDSUBENT 18 0 2227100799999
ENDENTRY 7 0 2227199999999