ENTRY            23252   20211122                             23052325200000001 
SUBENT        23252001   20211122                             23052325200100001 
BIB                 12         35                                 2325200100002 
TITLE       A measurement of the 14C(n,gamma)15C cross section    2325200100003 
            at a stellar temperature of kT=23.3 keV               2325200100004 
AUTHOR     (H.Beer, M.Wiescher, F.Kaeppeler, J.Goerres,           2325200100005 
            P.E.Koehler)                                          2325200100006 
INSTITUTE  (2GERKFK)                                              2325200100007 
REFERENCE  (J,AJ,387,258,1992)                                    2325200100008 
           (R,INDC(GER)-0053,2021) Revised values of Karlsruhe    2325200100009 
           cross sections.                                        2325200100010 
FACILITY   (VDG,2GERKFK) 3.75 MV Van de Graaff                    2325200100011 
INC-SOURCE (P-LI7)                                                2325200100012 
SAMPLE     (6-C-14,ENR=0.89) Powder sample (605 +/- 15 mg,        2325200100013 
            2.97 cm x 1.20 cm x 0.5 cm) packed in a 0.0508 mm     2325200100014 
            thick electroformed Ni container with a porous CH2    2325200100015 
            plug glued into the open end.                         2325200100016 
           Effective irradiated sample area was 2.97 cm x 1.20 cm 2325200100017 
            = 3.56 cm2.                                           2325200100018 
MONITOR    (79-AU-197(N,G)79-AU-198,,SIG,,MXW)                    2325200100019 
DETECTOR   (HPGE) Relative efficiency 35%, energy resolution of   2325200100020 
            1.72 keV at 1.33 MeV.                                 2325200100021 
           27Al(p,g) resonance at 992 keV was used to determine   2325200100022 
            the gamma-ray efficiency from 1.84 to 11 MeV.         2325200100023 
           Pu238-C13 source with a line at 6.13 MeV was also used 2325200100024 
           for the efficiency determination.                      2325200100025 
METHOD     (ACTIV) A fast sample changer was used.                2325200100026 
            Both irradiation time and counting time are 10 sec.   2325200100027 
ERR-ANALYS (ERR-T) Quadratic error propagation from               2325200100028 
           (ERR-S) 14C(n,gamma)15C statistics               (23%) 2325200100029 
           (ERR-1) Ge-detector efficiency for 15C            (8%) 2325200100030 
           (ERR-3) 14C sample weight                       (2.5%) 2325200100031 
           (ERR-4) 15C gamma line intensity                (2.9%) 2325200100032 
           (ERR-7,,1.) Neutron multiple scattering          (<1%) 2325200100033 
           (MONIT-ERR) 197Au(n,gamma) standard cross section      2325200100034 
HISTORY    (20140812C) On                                         2325200100035 
           (20211122A) SD: Corrections in all Subents.            2325200100036 
           Subent 003 added.                                      2325200100037 
ENDBIB              35          0                                 2325200100038 
COMMON               3          3                                 2325200100039 
ERR-1      ERR-3      ERR-4                                       2325200100040 
PER-CENT   PER-CENT   PER-CENT                                    2325200100041 
         8.        2.5        2.9                                 2325200100042 
ENDCOMMON            3          0                                 2325200100043 
ENDSUBENT           42          0                                 2325200199999 
SUBENT        23252002   20211122                             23052325200200001 
BIB                  7         10                                 2325200200002 
REACTION   (6-C-14(N,G)6-C-15,,SIG,,MXW)                          2325200200003 
DECAY-DATA (6-C-15,2.449SEC,DG,5297.79,0.68)                      2325200200004 
MONIT-REF  (22099001,W.Ratynski+,J,PR/C,37,595,1988)              2325200200005 
DECAY-MON  (79-AU-198-G,2.694D,DG,411.8,0.9552)                   2325200200006 
ERR-ANALYS (ERR-2) Ge-detector efficiency for 198Au        (1.5%) 2325200200007 
           (ERR-5) 198Au gamma line intensity            (0.105%) 2325200200008 
           (ERR-6) Misalignment of Au foils relative to 14C  (2%) 2325200200009 
STATUS     (TABLE) Table 3 of Astrophys.J.387(1992)258            2325200200010 
           (SPSDD,23252003) Renormalized.                         2325200200011 
HISTORY    (20211122A) SD: BIB updated. Subent superseded.        2325200200012 
ENDBIB              10          0                                 2325200200013 
COMMON               3          3                                 2325200200014 
ERR-2      ERR-5      ERR-6                                       2325200200015 
PER-CENT   PER-CENT   PER-CENT                                    2325200200016 
        1.5      0.105         2.                                 2325200200017 
ENDCOMMON            3          0                                 2325200200018 
DATA                 6          1                                 2325200200019 
KT         DATA       ERR-T      ERR-S      MONIT      MONIT-ERR  2325200200020 
KEV        MICRO-B    PER-CENT   PER-CENT   MB         PER-CENT   2325200200021 
    23.3        1.72       25.        23.        648.       1.5   2325200200022 
ENDDATA              3          0                                 2325200200023 
ENDSUBENT           22          0                                 2325200299999 
SUBENT        23252003   20211122                             23052325200300001 
BIB                  8         15                                 2325200300002 
REACTION  1((6-C-14(N,G)6-C-15,,SIG,,MXW)/                        2325200300003 
           (79-AU-197(N,G)79-AU-198,,SIG,,MXW))                   2325200300004 
          2(6-C-14(N,G)6-C-15,,SIG,,MXW)                          2325200300005 
DECAY-DATA (6-C-15,2.449SEC,DG,5297.79,0.632)                     2325200300006 
DECAY-MON  (79-AU-198-G,3881.0MIN,DG,411.80,0.9558)               2325200300007 
MONIT-REF  (,R.Reifarth+,J,EPJ/P,133,424,2018)                    2325200300008 
ANALYSIS   Cross section value in Subent 23252.002 is             2325200300009 
           renormalized                                           2325200300010 
            a)for new gold cross section                          2325200300011 
            b) by an additional factor 0.68/0.632=1.076, which    2325200300012 
             accounts for the gamma-intensity of the 5297.29 keV  2325200300013 
             transition in the 15C decay (NDS/ENSDF 2020)         2325200300014 
CORRECTION  Correction for revised gold standard: 681/648 =1.051  2325200300015 
STATUS     (TABLE) Table on p.352 of INDC(GER)-0053               2325200300016 
HISTORY    (20211122C) SD                                         2325200300017 
ENDBIB              15          0                                 2325200300018 
NOCOMMON             0          0                                 2325200300019 
DATA                 8          1                                 2325200300020 
KT         DATA      1ERR-T     1DATA      2ERR-T     2ERR-S      2325200300021 
MONIT      MONIT-ERR                                              2325200300022 
KEV        NO-DIM     NO-DIM     MICRO-B    PER-CENT   PER-CENT   2325200300023 
MB         PER-CENT                                               2325200300024 
 23.3         2.65E-06   0.66E-06   1.97       25.        23.     2325200300025 
    681.       1.0                                                2325200300026 
ENDDATA              6          0                                 2325200300027 
ENDSUBENT           26          0                                 2325200399999 
ENDENTRY             3          0                                 2325299999999