ENTRY            C2603   20210320                             C202C260300000001 
SUBENT        C2603001   20210320                             C202C260300100001 
BIB                 11         37                                 C260300100002 
TITLE      Measurement of the 230Th(p,2n)229Pa and 230Th(p,3n)    C260300100003 
           228Pa reaction cross sections from 14.1 to 16.9 MeV    C260300100004 
AUTHOR     (K.N.Kmak,D.A.Shaughnessy,J.Vujic)                     C260300100005 
INSTITUTE  (1USAUCX,1USALRL)                                      C260300100006 
REFERENCE  (J,PR/C,103,034610,2021)                               C260300100007 
FACILITY   (VDGT,1USALRL) Experiment performed at the Center for  C260300100008 
           Accelerator Mass Spectrometry at Lawrence Livermore    C260300100009 
           National Laboratory using 10 MV tandem accelerator     C260300100010 
SAMPLE     Thorium was separated from uranium ore. The final      C260300100011 
           product was 91.32+-0.77 mg of thorium with a purity    C260300100012 
           of 99.5+-1.2 wt%. Isotope ratio 230Th/232Th was        C260300100013 
           determined by mass spectrometry to be 0.0922+-0.00150. C260300100014 
           In experiment a target stack  was used to degrade beam C260300100015 
           energy. Stack consisted of                             C260300100016 
             - thin tantalum cover foil 5 mu-m thick              C260300100017 
             - ThO2 target with thickness ranging from            C260300100018 
               921.710+-0.005 to 1913.309+-0.005 mu-g Th/cm2 on   C260300100019 
               Ti backing (cover) 2 mu-m thick                    C260300100020 
             - Y monitor foil                                     C260300100021 
             - spacer foil Ta (10 mu-m) or Pt (25 mu-m)           C260300100022 
             - ThO2 target on Ti backing                          C260300100023 
             - spacer foil Ta (10 mu-m) or Pt (25 mu-m)           C260300100024 
             - ThO2 target on Ti backing                          C260300100025 
             - Beam stop                                          C260300100026 
           Together 8 target foils were irradiated. In first      C260300100027 
           experiment stack with two target foils without spacers C260300100028 
           was used.                                              C260300100029 
           (90-TH-230,ENR=0.0844)                                 C260300100030 
           (90-TH-232,ENR=0.9156)                                 C260300100031 
DETECTOR   (HPGE) Gamma ray spectra were measured using GPGe      C260300100032 
           detectorsaas well as low energy photon spectcrometer   C260300100033 
            (LAPS) detector.                                      C260300100034 
METHOD     (ACTIV,CHSEP) Column chromatography was used to        C260300100035 
                         separate protactinium.                   C260300100036 
MONITOR    (39-Y-89(P,N)40-ZR-89,,SIG)                            C260300100037 
ERR-ANALYS (DATA-ERR) Source of uncertainties not described       C260300100038 
HISTORY    (20210320C) Compiled by S.H.                           C260300100039 
ENDBIB              37          0                                 C260300100040 
NOCOMMON             0          0                                 C260300100041 
ENDSUBENT           40          0                                 C260300199999 
SUBENT        C2603002   20210320                             C202C260300200001 
BIB                  3          5                                 C260300200002 
REACTION   (90-TH-230(P,2N)91-PA-229,,SIG)                        C260300200003 
DECAY-DATA (91-PA-229,1.50D,DG,119.0,0.00129,                     C260300200004 
                            XR,89.957,0.182,                      C260300200005 
                            XR,93.35,0.293)                       C260300200006 
STATUS     (TABLE) Data taken from tab.1 of the reference PR/C    C260300200007 
ENDBIB               5          0                                 C260300200008 
NOCOMMON             0          0                                 C260300200009 
DATA                 4          6                                 C260300200010 
EN         EN-RSL     DATA       DATA-ERR                         C260300200011 
MEV        MEV        MB         MB                               C260300200012 
       16.9        0.1       107.        15.                      C260300200013 
       16.0        0.1       148.         9.                      C260300200014 
       15.7       0.14       156.        16.                      C260300200015 
       14.9        0.1       163.        32.                      C260300200016 
       14.4        0.1       182.        12.                      C260300200017 
       14.1        0.1       166.        32.                      C260300200018 
ENDDATA              8          0                                 C260300200019 
ENDSUBENT           18          0                                 C260300299999 
SUBENT        C2603003   20210320                             C202C260300300001 
BIB                  3         10                                 C260300300002 
REACTION   (90-TH-230(P,3N)91-PA-228,,SIG)                        C260300300003 
DECAY-DATA (91-PA-228,19.5HR,DG,129.065,0.426,                    C260300300004 
                             DG,338.320,0.076,                    C260300300005 
                             DG,409.462,0.093,                    C260300300006 
                             DG,911.204,0.23,                     C260300300007 
                             XR,89.957,0.257,                     C260300300008 
                             XR,93.350,0.419)                     C260300300009 
           Half-life was measured by authors as 19.5+-0.4 hr,     C260300300010 
           which is different from the value used in literature.  C260300300011 
STATUS     (TABLE) Data taken from tab.1 of the reference PR/C    C260300300012 
ENDBIB              10          0                                 C260300300013 
NOCOMMON             0          0                                 C260300300014 
DATA                 4          3                                 C260300300015 
EN         EN-RSL     DATA       DATA-ERR                         C260300300016 
MEV        MEV        MB         MB                               C260300300017 
       16.9        0.1        23.        1.3                      C260300300018 
       16.0        0.1        1.6       0.15                      C260300300019 
       15.7       0.14        2.7        1.6                      C260300300020 
ENDDATA              5          0                                 C260300300021 
ENDSUBENT           20          0                                 C260300399999 
SUBENT        C2603004   20210320                             C202C260300400001 
BIB                  3         10                                 C260300400002 
REACTION   (90-TH-232(P,N)91-PA-232,,SIG)                         C260300400003 
DECAY-DATA (91-PA-232,1.31D,DG,150.059,0.104,                     C260300400004 
                            DG,387.884,0.0655,                    C260300400005 
                            DG,581.398,0.0618,                    C260300400006 
                            DG,819.187,0.0734,                    C260300400007 
                            DG,866.760,0.0734,                    C260300400008 
                            DG,969.315,0.423,                     C260300400009 
                            XR,94.654,0.0101,                     C260300400010 
                            XR,98.434,0.0162)                     C260300400011 
STATUS     (TABLE) Data taken from tab.1 of the reference PR/C    C260300400012 
ENDBIB              10          0                                 C260300400013 
NOCOMMON             0          0                                 C260300400014 
DATA                 4          6                                 C260300400015 
EN         EN-RSL     DATA       DATA-ERR                         C260300400016 
MEV        MEV        MB         MB                               C260300400017 
       16.9        0.1       17.3        1.0                      C260300400018 
       16.0        0.1       14.7        0.8                      C260300400019 
       15.7       0.14       15.2        0.7                      C260300400020 
       14.9        0.1       12.0        0.7                      C260300400021 
       14.4        0.1       12.1        0.7                      C260300400022 
       14.1        0.1       11.7        0.7                      C260300400023 
ENDDATA              8          0                                 C260300400024 
ENDSUBENT           23          0                                 C260300499999 
ENDENTRY             4          0                                 C260399999999