ENTRY            21699   20200803                             22902169900000001 
SUBENT        21699001   20200803                             22902169900100001 
BIB                 11         46                                 2169900100002 
TITLE       A multiparameter investigation of the H-3 and He-4    2169900100003 
            emission in the fission of Cf-252                     2169900100004 
AUTHOR     (D.E.Cumpstey,D.G.Vass)                                2169900100005 
REFERENCE  (C,79JUELICH,2,223,1979)  Main reference               2169900100006 
           (J,NP/A,359,377,1981) Data for He-6.                   2169900100007 
INSTITUTE  (2UK EDG). Department of physics.                      2169900100008 
SAMPLE     .Cf-252 source, 1mm diameter, emitting 850             2169900100009 
            pulses per second. It was a thin and uniform          2169900100010 
            deposit mounted flush with the surface of the         2169900100011 
            cathode in the scintillation cell. It was deposited   2169900100012 
            onto a Ni-foil.                                       2169900100013 
METHOD     (EDE)   Use of a E-dE detector to identify the         2169900100014 
            light particles emitted in the fission.               2169900100015 
           (COINC) A coincidence is required between these        2169900100016 
            light particles and the output of the fission         2169900100017 
            detector to select ternary fission events.            2169900100018 
DETECTOR   (COIN,PROPC,TELES) The fission fragments are detected  2169900100019 
            in a xenon filled proportional scintillator. It       2169900100020 
            was filled with xenon at a pressure of 760 torr.      2169900100021 
            The distance between cathode and anode mesh was 15    2169900100022 
            mm. The amplitude of the photomultiplier pulse        2169900100023 
            gave the energy of the fragment. The fall time        2169900100024 
            of the photomultiplier pulse between 90. And 10%      2169900100025 
            pulse height yielded the angle of the fission         2169900100026 
            fragment. The corresponding charged light particles   2169900100027 
            are identified in coincidence in a telescope          2169900100028 
            arrangement of two solid state detectors.             2169900100029 
            The emission angles of the other particles involved   2169900100030 
            are calculated using conservation of momentum.        2169900100031 
            The detectors are calibrated with alpha lines from    2169900100032 
            Pu-239,Am-241,Cm-244.                                 2169900100033 
ANALYSIS   .A Gaussian shape was fitted to the light particle     2169900100034 
            energy distribution. This is due to 13.5 MeV          2169900100035 
            discrimination level for the alpha particles.         2169900100036 
            The deviation from the Gaussian shape at lower        2169900100037 
            energies is therefore not seen.                       2169900100038 
CORRECTION .Energy losses of the fission fragments in the         2169900100039 
            xenon gas of the detector and in the nickel foil      2169900100040 
            backing they go through.                              2169900100041 
ERR-ANALYS (DATA-ERR) No details given.                           2169900100042 
HISTORY    (19801104C) G.C.                                       2169900100043 
           (19810610A) G.C., He-6 data added.                     2169900100044 
           (20090401A) Date is corrected. BIB information added.  2169900100045 
                       Upper case to low converted                2169900100046 
           (20200803A) SD: Correction in REACTION code in         2169900100047 
           Subents 002, 003.                                      2169900100048 
ENDBIB              46          0                                 2169900100049 
NOCOMMON             0          0                                 2169900100050 
ENDSUBENT           49          0                                 2169900199999 
SUBENT        21699002   20200803                             22902169900200001 
BIB                  3          4                                 2169900200002 
REACTION   (98-CF-252(0,F)2-HE-4,TER,KE)                          2169900200003 
STATUS     (TABLE) Data taken from table II of 79JUELICH,2,223    2169900200004 
HISTORY    (20200803A) SD: SF4=He-4; SF6=AKE -> KE; SF7=A deleted 2169900200005 
           from REACTION code. STATUS updated.                    2169900200006 
ENDBIB               4          0                                 2169900200007 
NOCOMMON             0          0                                 2169900200008 
DATA                 2          1                                 2169900200009 
DATA       DATA-ERR                                               2169900200010 
MEV        MEV                                                    2169900200011 
  16.1      0.8                                                   2169900200012 
ENDDATA              3          0                                 2169900200013 
ENDSUBENT           12          0                                 2169900299999 
SUBENT        21699003   20200803                             22902169900300001 
BIB                  3          4                                 2169900300002 
REACTION   (98-CF-252(0,F)1-H-3,TER,KE)                           2169900300003 
STATUS     (TABLE) Data taken from table II of 79JUELICH,2,223    2169900300004 
HISTORY    (20200803A) SD: SF4=H-3; SF6=AKE -> KE; SF7=T deleted  2169900300005 
           from REACTION code. STATUS updated.                    2169900300006 
ENDBIB               4          0                                 2169900300007 
NOCOMMON             0          0                                 2169900300008 
DATA                 2          1                                 2169900300009 
DATA       DATA-ERR                                               2169900300010 
MEV        MEV                                                    2169900300011 
       9.0     0.5                                                2169900300012 
ENDDATA              3          0                                 2169900300013 
ENDSUBENT           12          0                                 2169900399999 
SUBENT        21699004   20200803                             22902169900400001 
BIB                  3          4                                 2169900400002 
REACTION   ((98-CF-252(0,F)1-H-3,TER,FY)/                         2169900400003 
           (98-CF-252(0,F)2-HE-4,TER,FY))                         2169900400004 
STATUS     (TABLE) Data taken from table II of 79JUELICH,2,223    2169900400005 
HISTORY    (20200803U) SD: STATUS updated.                        2169900400006 
ENDBIB               4          0                                 2169900400007 
NOCOMMON             0          0                                 2169900400008 
DATA                 2          1                                 2169900400009 
DATA       DATA-ERR                                               2169900400010 
NO-DIM     NO-DIM                                                 2169900400011 
    7.4E-02     3.E-03                                            2169900400012 
ENDDATA              3          0                                 2169900400013 
ENDSUBENT           12          0                                 2169900499999 
SUBENT        21699005   20200803                             22902169900500001 
BIB                  4          6                                 2169900500002 
REACTION   ((98-CF-252(0,F)2-HE-6,TER,FY)/                        2169900500003 
           (98-CF-252(0,F)2-HE-4,TER,FY))                         2169900500004 
FLAG       (1.) Data obtained in vacuo ( xenon-proportional       2169900500005 
             scintillator evacuated, no coincidence)              2169900500006 
STATUS     (TABLE) Table 1 from Nucl.Phys.,A359(1981)377.         2169900500007 
HISTORY    (20200803U) SD: STATUS updated.                        2169900500008 
ENDBIB               6          0                                 2169900500009 
NOCOMMON             0          0                                 2169900500010 
DATA                 3          2                                 2169900500011 
DATA       DATA-ERR   FLAG                                        2169900500012 
NO-DIM     NO-DIM     NO-DIM                                      2169900500013 
    2.0E-02     7.E-03                                            2169900500014 
    1.9E-02     2.E-03         1.                                 2169900500015 
ENDDATA              4          0                                 2169900500016 
ENDSUBENT           15          0                                 2169900599999 
ENDENTRY             5          0                                 2169999999999