ENTRY            21536   19810205                             00002153600000001 
SUBENT        21536001   19810205                             00002153600100001 
BIB                 16         65                                 2153600100002 
INSTITUTE  (2BLGLVN) LOUVAIN-LA-NEUVE.                            2153600100003 
REFERENCE  (J,PL/B,82,2,212,790326) FINAL REPORT.                 2153600100004 
           (C,78GRAZ,1,54,7808) PRELIMINARY RESULTS. ABSTRACT.    2153600100005 
AUTHOR     (M.BOSMAN,A.BOL,J.F.GILOT,P.LELEUX,P.LIPNIK,           2153600100006 
            P.MACQ)                                               2153600100007 
TITLE      -MEASUREMENT OF THE TOTAL CROSS SECTION FOR THE        2153600100008 
            H-1(N,G)H-2 REACTION BETWEEN 37 AND 72 MEV.-          2153600100009 
FACILITY   (CYCLO,2BLGLVN) SYNCHRONOUS CYCLOTRON CYCLONE OF       2153600100010 
            LOUVAIN-LA-NEUVE.                                     2153600100011 
INC-SOURCE (P-LI7) 3 MICRO-AMPERE PROTON BEAMS OF 40, 50, 55,     2153600100012 
            60, 65 AND 75 MEV IMPINGING ON 4 MM THICK LI-TARGET.  2153600100013 
SAMPLE     .LIQUID H(2) TARGET, 4.5 MM OR 6.5 MM THICK, 4 CM      2153600100014 
            DIAM, 3 M DOWNSTREAM THE NEUTRON PRODUCTION TARGET.   2153600100015 
            ITS VACUUM JACKET HAS HAVAR WINDOWS OF 5 MG/CM*CM     2153600100016 
            AND 10 MG/CM*CM RESPECTIVILY.                         2153600100017 
METHOD     (TOF  ) TIME-OF-FLIGHT MEASURED BETWEEN BEAM PICK-OFF  2153600100018 
            AND DETECTOR S1, BETWEEN S1 AND S2, AND BETWEEN S1    2153600100019 
            AND S5.                                               2153600100020 
           (COINC) FAST PROTONS ARE DETECTED BY A COINCIDENCE     2153600100021 
            PC1(-),PC2(+),S1(+),S2(+),S3(+),S4(-),S5(+), WHERE    2153600100022 
            + MEANS SIGNAL AND - MEANS NO SIGNAL. DEUTERONS AND   2153600100023 
            SLOW PROTONS ARE DETECTED BY PC1(-),PC2(+),S1(+),     2153600100024 
            S2(+),S3(-). THESE 2 KINDS OF COINCIDENCES TRIGGER    2153600100025 
            THE RECORDING OF AN EVENT, WHICH IS THEN STORED ON    2153600100026 
            MAGNETIC TAPE WITH THE PARAMETERS IS (1) THE KIND OF  2153600100027 
            COINCIDENCE, (2) THE PULSE HEIGHTS FROM PC1, PC2,     2153600100028 
            S1,S2,S3,S4,S5, AND (3) THE TIME-OF-FLIGHTS MENTIONED 2153600100029 
            ABOVE.                                                2153600100030 
DETECTOR   (PROPC) TWO PROPORTIONAL COUNTERS ARE USED : PC1, PC2. 2153600100031 
            PC1 - GAS PROPORTIONAL COUNTER IN FRONT OF THE LIQUID 2153600100032 
                  HYDROGEN TARGET TO REJECT CHARGED PARTICLES     2153600100033 
                  CONTAMINATING THE NEUTRON BEAM (ABOUT 1.E-4).   2153600100034 
                  FILLED WITH ISOBUTANE-METHYLAL-ARGON MIXTURE,   2153600100035 
                  5 MG/CM*CM HAVAR-WINDOWS.                       2153600100036 
            PC2 - GAS PROPORTIONAL COUNTER BEHIND THE H(2)-       2153600100037 
                  TARGET, 2 CM THICK, TRIGGERS ON CHARGED         2153600100038 
                  PARTICLES FROM THE TARGET REGION, FILLED WITH   2153600100039 
                  SAME GAS AS PC1, 2.7 MG/CM*CM AL-WINDOWS.       2153600100040 
           (SCIN ) FIVE SCINTILLATION COUNTERS : S1,S2,S3,S4,S5.  2153600100041 
            S1  - DE-COUNTER JUST BEHIND PC2. 0.1 OR 0.5 MM THIN. 2153600100042 
            S2  - E-COUNTER, THICKNESS ADJUSTED TO MAXIMUM RANGE  2153600100043 
                  OF THE DEUTERONS, COVERING THE HOLE LABORATORY  2153600100044 
                  ANGLE OF DEUTERON EMISSION ( 7. DEGREES).       2153600100045 
            S3  - SLIGHTLY LARGER THAN S2 AND JUST BEHIND IT.     2153600100046 
            S4  - BEHIND S3 AT A LAB-ANGLE OF 3.3 DEGREES, WITH A 2153600100047 
                  3 CM DIAM HOLE IN IT, DEFINING THE SOLID ANGLE  2153600100048 
                  OF S5 JUST BEHIND IT.                           2153600100049 
            S5  - 5 CM THICK, 5 CM DIAM.                          2153600100050 
MONITOR    (1-H-1(N,EL)1-H-1,,DA) ELASTICALLY SCATTERED PROTONS   2153600100051 
            AT 3.3 DEGREES LAB-ANGLE, I.E. 173. DEGR. CMS-ANGLE.  2153600100052 
            ONLY KNOWN WITH A PRECISION OF ABOUT 5 PERC AND SO    2153600100053 
            THE MAIN SOURCE OF ERROR OF THE MEASUREMENTS.         2153600100054 
PART-DET   (D   )                                                 2153600100055 
COMMENT    .MEASUREMENTS SHOW THAT THERE IS NO DISCREPANCY        2153600100056 
            BETWEEN EXPERIMENT AND THEORY IN THIS ENERGY          2153600100057 
            REGION. DEUTERON PHOTO-DISINTIGRATION CROSS SECTIONS  2153600100058 
            ARE CALCULATED FROM THE CAPTURE DATA.                 2153600100059 
STATUS     .DATA TAKEN FROM MAIN REFERENCE.                       2153600100060 
HISTORY    (800430C) G.C.                                         2153600100061 
           (800603E)                                              2153600100062 
CORRECTION .BACKGROUND CORRECTION BY SUBSTRACTION OF DUMMY        2153600100063 
            SAMPLE MEASUREMENT.                                   2153600100064 
ERR-ANALYS .ERROR-BARS REPRESENT THE CONSISTENCY ERROR TAKEN      2153600100065 
            OVER SUCCESSIVE PAIRS OF MEASUREMENTS WITH H(2)       2153600100066 
            AND DUMMY TARGET.                                     2153600100067 
ENDBIB              65          0                                 2153600100068 
COMMON               1          3                                 2153600100069 
MONIT-ERR                                                         2153600100070 
PER-CENT                                                          2153600100071 
 5.0000E+00                                                       2153600100072 
ENDCOMMON            3          0                                 2153600100073 
ENDSUBENT           72          0                                 2153600199999 
SUBENT        21536002   19800603                             00002153600200001 
BIB                  3          4                                 2153600200002 
REACTION   (1-H-1(N,G)1-H-2,,SIG)                                 2153600200003 
STATUS     .TABLE 1 OF MAIN REFERENCE.                            2153600200004 
HISTORY    (800430C) G.C.                                         2153600200005 
           (800603E)                                              2153600200006 
ENDBIB               4          0                                 2153600200007 
NOCOMMON             0          0                                 2153600200008 
DATA                 5          7                                 2153600200009 
EN         EN-RSL     MONIT      DATA       DATA-ERR              2153600200010 
MEV        MEV        MB/SR      MB         MB                    2153600200011 
 3.7000E+01 1.4000E+00 2.3200E+01 2.1200E-02 1.6000E-03           2153600200012 
 4.2200E+01 1.3000E+00 2.0400E+01 2.0600E-02 1.4000E-03           2153600200013 
 4.7300E+01 1.2000E+00 1.8200E+01 1.7000E-02 7.0000E-04           2153600200014 
 5.2400E+01 1.1000E+00 1.6700E+01 1.7600E-02 9.0000E-04           2153600200015 
 5.7400E+01 1.0000E+00 1.5400E+01 1.5800E-02 1.1000E-03           2153600200016 
 6.2500E+01 1.0000E+00 1.4400E+01 1.4600E-02 1.1000E-03           2153600200017 
 7.2600E+01 9.0000E-01 1.2800E+01 1.4700E-02 1.1000E-03           2153600200018 
ENDDATA              9          0                                 2153600200019 
ENDSUBENT           18          0                                 2153600299999 
ENDENTRY             2          0                                 2153699999999