ENTRY            22129   19910617                             00002212900000001 
SUBENT        22129001   19910617                             00002212900100001 
BIB                 15         58                                 2212900100002 
REFERENCE  (J,PR/C,41,2556,9006) MAIN REFERENCE                   2212900100003 
           (W,OLSSON,891109)                                      2212900100004 
TITLE      -THE 12-C(N,GAMMA0)13-C CROSS SECTION IN THE 8 - 11 MEV2212900100005 
            REGION.                                               2212900100006 
COMMENT    .THIS EXPERIMENT WAS PERFORMED IN AN ATTEMPT TO        2212900100007 
            RESOLVE DESCREPANCIES FOUND IN A PREVIOUS EXPERIMENT, 2212900100008 
            REF. NP/A,456,426 (1986), EXFOR 22142.                2212900100009 
AUTHOR     (A.HAAKANSSON,A.LINDHOLM,L.NILSSON,J.BLOMGREN,         2212900100010 
            P.O.SOEDERMAN,D.M.DRAKE,S.A.WENDER,N.OLSSON)          2212900100011 
INSTITUTE  (2SWDTLU) A.H., A.L., L.N., J.B., P.O.S. AND EXPERIMEN-2212900100012 
            TAL SITE.                                             2212900100013 
           (1USALAS) D.M.D., S.A.W.                               2212900100014 
           (2SWDSWR) N.O.                                         2212900100015 
FACILITY   (VDGT ) THE UPPSALA EN TANDEM VAN DE GRAAFF ACCELERATOR2212900100016 
            DELIVERED 2 NS BUNCHES OF 7.8, 9.3 AND 10.8 MEV DEUTE-2212900100017 
            RONS AT A REPETITION RATE OF 2 MHZ.                   2212900100018 
INC-SOURCE (D-D  ) NEUTRONS WERE PRODUCED USING A STAINLESS STEEL 2212900100019 
            DEUTERIUM GAS TARGET, 2.5 CM LONG AND WITH A 6 MG/CM2 2212900100020 
            THICK NICKEL ENTRANCE FOIL, FILLED TO A PRESSURE OF   2212900100021 
            1.7 ATM.                                              2212900100022 
METHOD     (TOF  ) NEUTRON-GAMMA SEPARATION WAS OBTAINED WITH     2212900100023 
            TIME-OF-FLIGHT TECHNIQUES.                            2212900100024 
DETECTOR   (NAICR) THE GAMMA-RAY SPECTROMETER CONSISTED OF A      2212900100025 
            NAI/TL/ CRYSTAL, 24 CM IN DIAMETER AND 36 CM LONG,    2212900100026 
           (SCIN ) SUURROUNDED BY A PLASTIC ANTICOINCIDENCE       2212900100027 
            SHIELD, CONSISTING OF AN ANNULUS DETECTOR AND A FRONT 2212900100028 
            DETECTOR. BORATED PARAFFIN WAS USED TO SHIELD THE DE- 2212900100029 
            TECTOR FROM ROOM-SCATTERED NEUTRONS, WHILE A LAYER OF 2212900100030 
            LEAD SERVED AS A SHIELD FOR BACKGROUND GAMMA-RAYS. A  2212900100031 
            HEVIMET SHADOW BAR ATTENUATED THE DIRECT TARGET NEU-  2212900100032 
            TRON FLUX. A PLUG OF LITHIUM HYDRIDE WAS INSERTED IN  2212900100033 
            THE COLLIMATOR TO REDUCE THE EFFECT OF SCATTERED NEU- 2212900100034 
            TRONS. THE DETECTOR RESPONSE FUNCTIONS WERE DETERMINED2212900100035 
            BY MEANS OF PROTON CAPTURE GAMMA-RAYS FROM 11-B. THE  2212900100036 
            DETECTOR EFFICIENCY WAS CALCULATED WITH A MONTE CARLO 2212900100037 
            COMPUTER CODE.                                        2212900100038 
           (SCIN ) NORMALIZATION OF DIFFERENT RUNS WAS ACCOMP-    2212900100039 
            LISHED WITH A PLASTIC NEUTRON MONITOR OPERATING IN TOF2212900100040 
            MODE, WHICH VIEWED THE NEUTRON PRODUCTION TARGET AT A 2212900100041 
            DISTANCE OF 4 M AND AT AN ANGLE OF 60 DEG.            2212900100042 
MONITOR    (20-CA-40(N,G)20-CA-41,PAR,DA) GROUND STATE TRANSITION.2212900100043 
SAMPLE     .CYLINDRICAL SAMPLES OF CARBON AND CALCIUM, 3.1 CM IN  2212900100044 
            DIAMETER AND 3.8 CM IN HEIGHT, ORIENTED WITH THE      2212900100045 
            SYMMETRY AXIS PERPENDICULAR TO THE REACTION PLANE AND 2212900100046 
            AT A DISTANCE OF 11 CM FROM THE TARGET CELL. THE CAR- 2212900100047 
            BON AND CALCIUM SAMPLE MASSES WERE 51.24 G AND 46.21  2212900100048 
            G, RESPECTIVELY, BOTH BEING OF NATURAL ISOTOPIC COM-  2212900100049 
            POSITION.                                             2212900100050 
CORRECTION .THE DATA WERE CORRECTED FOR BACKGROUND, DEAD-TIME,    2212900100051 
            NEUTRON AND GAMMA ATTENUATION, AND MULTIPLE SCATTERING2212900100052 
            EFFECTS.                                              2212900100053 
ERR-ANALYS (DATA-ERR) STATISTICAL ERRORS ONLY. IN ADDITION, THERE 2212900100054 
            IS A +/- 20 PERCENT SYSTEMATIC UNCERTAINTY.           2212900100055 
STATUS     .DATA TAKEN FROM MAIN REF.                             2212900100056 
HISTORY    (891109C) N.O.                                         2212900100057 
           (891211E)                                              2212900100058 
           (910125A) S.W. MAIN REFERENCE ADDED, COMMENT ADDED     2212900100059 
           (910205E)                                              2212900100060 
ENDBIB              58          0                                 2212900100061 
NOCOMMON             0          0                                 2212900100062 
ENDSUBENT           61          0                                 2212900199999 
SUBENT        22129002   19891211                             00002212900200001 
BIB                  3          4                                 2212900200002 
REACTION   (6-C-12(N,G)6-C-13,PAR,DA) GROUND STATE TRANSITION.    2212900200003 
STATUS     .DATA TAKEN FROM MAIN REF.                             2212900200004 
HISTORY    (891109C) N.O.                                         2212900200005 
           (891211E)                                              2212900200006 
ENDBIB               4          0                                 2212900200007 
COMMON               1          3                                 2212900200008 
E-LVL-FIN                                                         2212900200009 
MEV                                                               2212900200010 
 0.0000E+00                                                       2212900200011 
ENDCOMMON            3          0                                 2212900200012 
DATA                 6          3                                 2212900200013 
EN         ANG        DATA       DATA-ERR   MONIT      MONIT-ERR  2212900200014 
MEV        ADEG       MU-B/SR    MU-B/SR    MU-B/SR    MU-B/SR    2212900200015 
 7.8000E+00 9.0000E+01 2.9500E+00 5.1000E-01 7.8900E+00 2.1000E-012212900200016 
 9.3000E+00 9.0000E+01 3.1400E+00 3.6000E-01 1.2680E+01 2.3000E-012212900200017 
 1.0800E+01 9.0000E+01 3.2200E+00 3.7000E-01 1.5650E+01 2.8000E-012212900200018 
ENDDATA              5          0                                 2212900200019 
ENDSUBENT           18          0                                 2212900299999 
ENDENTRY             2          0                                 2212999999999