ENTRY            14543   20190612                             14551454300000001 
SUBENT        14543001   20190612                             14551454300100001 
BIB                  9         33                                 1454300100002 
TITLE      Origin of protons in californium-252 fission           1454300100003 
AUTHOR     (J.A.Adams,R.R.Roy)                                    1454300100004 
INSTITUTE  (1USAASU)                                              1454300100005 
REFERENCE  (J,NSE,63,41,1977)                                     1454300100006 
           #NSR: 1977AD05                                         1454300100007 
SAMPLE     The source consists of a 2-mm-diam spot of 252Cf       1454300100008 
           deposited on a 2-mm-thick platinum disk. An            1454300100009 
           aluminum ring mount holds both the source disk and a   1454300100010 
           9 mg/cm2 thick nickel cover foil. The source has an    1454300100011 
           activity of 3.e5 fissions per minute.                  1454300100012 
DETECTOR   (SIBAR,SILI,TELES) A two-detector particle telescope   1454300100013 
           of the deltaE,E- type is used for energy measurement   1454300100014 
           and identification of the light charged particles. The 1454300100015 
           deltaE detector is a 60 mu-m thick, 50 mm2 totally     1454300100016 
           depleted silicon surface barrier detector, held in a   1454300100017 
           transmission mount. A 2000 mu-m thick, 80 mm2 lithium  1454300100018 
           drifted silicon detector is used for the E detector.   1454300100019 
MONITOR    A 210Po alpha-particle source was used to calibrate the1454300100020 
           telescope system. The calibration was checked by using 1454300100021 
           the long-range fission alpha particles from 252Cf as a 1454300100022 
           secondary standard.                                    1454300100023 
CORRECTION For source air and nickel foil energy loss,            1454300100024 
               the (n,p) particle telescope background,           1454300100025 
               protons simulated by alpha particles detected with 1454300100026 
               coincident gamma rays,                             1454300100027 
               protons from 58Ni(n,p) and 58Ni(alpha,p) reactions 1454300100028 
               in the nickel cover foil,                          1454300100029 
               protons from 14Ni(alpha,p) reaction in air trapped 1454300100030 
               beneath the nickel cover foil,                     1454300100031 
               knock-on protons, from hydrogenous material on the 1454300100032 
               surface of the source or on the inner side of the  1454300100033 
               cover foil.                                        1454300100034 
HISTORY    (20190612C) OG.                                        1454300100035 
ENDBIB              33          0                                 1454300100036 
NOCOMMON             0          0                                 1454300100037 
ENDSUBENT           36          0                                 1454300199999 
SUBENT        14543002   20190612                             14551454300200001 
BIB                  3          4                                 1454300200002 
REACTION   (98-CF-252(0,F)1-H-1,TER,FY/DE,,REL)                   1454300200003 
ERR-ANALYS No information on uncertainties.                       1454300200004 
STATUS     (CURVE) Fig.5 from Nucl.Sci.Eng.,63,41,1977 digitized  1454300200005 
           by GSYS2.4.7.                                          1454300200006 
ENDBIB               4          0                                 1454300200007 
NOCOMMON             0          0                                 1454300200008 
DATA                 3         39                                 1454300200009 
E-MIN      E-MAX      DATA                                        1454300200010 
MEV        MEV        ARB-UNITS                                   1454300200011 
     3.1269     3.5056   0.000385                                 1454300200012 
     3.5056     3.9338   0.000436                                 1454300200013 
     3.9338     4.3066   0.000463                                 1454300200014 
     4.3066     4.7396   0.000340                                 1454300200015 
     4.7396     5.1253   0.000607                                 1454300200016 
     5.1253     5.5077   0.000683                                 1454300200017 
     5.5077     5.9206   0.000452                                 1454300200018 
     5.9206     6.3489   0.000564                                 1454300200019 
     6.3489     6.7422   0.000959                                 1454300200020 
     6.7422     7.1506   0.001140                                 1454300200021 
     7.1506     7.5115   0.001087                                 1454300200022 
     7.5115     7.9134   0.000843                                 1454300200023 
     7.9134     8.3126   0.000763                                 1454300200024 
     8.3126     8.7441   0.000820                                 1454300200025 
     8.7441     9.1300   0.000933                                 1454300200026 
     9.1300     9.5288   0.000789                                 1454300200027 
     9.5288     9.9347   0.000845                                 1454300200028 
     9.9347    10.2987   0.000782                                 1454300200029 
    10.2987    10.7284   0.000697                                 1454300200030 
    10.7284    11.1307   0.000656                                 1454300200031 
    11.1307    11.5058   0.000578                                 1454300200032 
    11.5058    11.9142   0.000538                                 1454300200033 
    11.9142    12.3095   0.000411                                 1454300200034 
    12.3095    12.7065   0.000379                                 1454300200035 
    12.7065    13.0964   0.000280                                 1454300200036 
    13.0964    13.4985   0.000226                                 1454300200037 
    13.4985    13.9045   0.000221                                 1454300200038 
    13.9045    14.2906   0.000232                                 1454300200039 
    14.2906    14.7046   0.000236                                 1454300200040 
    14.7046    15.0929   0.000131                                 1454300200041 
    15.0929    15.5023   0.000145                                 1454300200042 
    15.5023    15.8770   0.000095                                 1454300200043 
    15.8770    16.2814   0.000054                                 1454300200044 
    16.2814    16.6986   0.000058                                 1454300200045 
    16.6986    17.1395   0.000041                                 1454300200046 
    17.1395    17.5203   0.000044                                 1454300200047 
    17.5203    17.8890   0.000027                                 1454300200048 
    17.8890    18.2856   0.000035                                 1454300200049 
    18.2856    18.6502   0.000008                                 1454300200050 
ENDDATA             41          0                                 1454300200051 
ENDSUBENT           50          0                                 1454300299999 
SUBENT        14543003   20190612                             14551454300300001 
BIB                  4         18                                 1454300300002 
REACTION  1((98-CF-252(0,F)1-H-1,TER,FY)/                         1454300300003 
           (98-CF-252(0,F)2-HE-4,TER,FY)) Polar+tripartition      1454300300004 
          2((98-CF-252(0,F)1-H-1,TER,FY,,MSC)/                    1454300300005 
           (98-CF-252(0,F)2-HE-4,TER,FY)) Polar yield             1454300300006 
          3((98-CF-252(0,F)1-H-1,TER,FY,,MSC)/                    1454300300007 
           (98-CF-252(0,F)2-HE-4,TER,FY)) Tripartition yield      1454300300008 
           Data Gaussian-fitted and extrapolated to include       1454300300009 
           entire energy range.                                   1454300300010 
ANALYSIS   Proton yield (% Long-Range Alpha Particles) due to     1454300300011 
           telescope (n,p) (0.39+-0.04)%                          1454300300012 
           simulated (0.03+-0.01)%                                1454300300013 
           58Ni(n,p) reaction (1.11+-0.06)%                       1454300300014 
           58Ni(alpha,p) reaction  (0.005+-0.001)%                1454300300015 
           14Ni(alpha,p) reaction (0.34+-0.05)%                   1454300300016 
           knock-on protons (0.81+-0.23)%                         1454300300017 
ERR-ANALYS (DATA-ERR) No information on sources of uncertainties  1454300300018 
STATUS     (TABLE) Table I from Nucl.Sci.Eng.,63,41,1977          1454300300019 
           (DEP,14543002)                                         1454300300020 
ENDBIB              18          0                                 1454300300021 
NOCOMMON             0          0                                 1454300300022 
DATA                 6          1                                 1454300300023 
DATA      1DATA-ERR  1DATA      2DATA-ERR  2DATA      3DATA-ERR  31454300300024 
ARB-UNITS  ARB-UNITS  ARB-UNITS  ARB-UNITS  ARB-UNITS  ARB-UNITS  1454300300025 
   1.89E-02   0.11E-02   0.84E-02   0.04E-02   1.05E-02   0.06E-021454300300026 
ENDDATA              3          0                                 1454300300027 
ENDSUBENT           26          0                                 1454300399999 
SUBENT        14543004   20190612                             14551454300400001 
BIB                  5         17                                 1454300400002 
REACTION  1(98-CF-252(0,F)1-H-1,TER,KEP) Polar+tripartition       1454300400003 
          2(98-CF-252(0,F)1-H-1,TER,KEP,,MSC) Polar yield         1454300400004 
          3(98-CF-252(0,F)1-H-1,TER,KEP,,MSC) Tripartition yield  1454300400005 
           Most Probable Energy (FWHM)                            1454300400006 
MISC-COL   (MISC1) Full width at half maximum (FWHM) for sum of   1454300400007 
                                            polar+tripartition    1454300400008 
           (MISC2) FWHM for polar yield                           1454300400009 
           (MISC3) FWHM for tripartition yield                    1454300400010 
ERR-ANALYS (DATA-ERR) No information on sources of uncertainties  1454300400011 
ANALYSIS   Most Probable Energy and FWHM for protons due to       1454300400012 
           simulated MPE =3.0+-0.2 MeV, FWHM =0.6+-0.1 MeV        1454300400013 
           58Ni(n,p) MPE =4.3+-0.2 MeV, FWHM =3.4+-0.2 MeV        1454300400014 
           58Ni(alpha,p) MPE =2.8+-0.2 MeV                        1454300400015 
           14Ni(alpha,p) MPE =4.4+-0.2 MeV, FWHM =1.5+-0.3 MeV    1454300400016 
           knock-on protons MPE =3.2+-0.3 MeV, FWHM =1.0+-0.3 MeV 1454300400017 
STATUS     (TABLE) Table I from Nucl.Sci.Eng.,63,41,1977          1454300400018 
           (DEP,14543002)                                         1454300400019 
ENDBIB              17          0                                 1454300400020 
NOCOMMON             0          0                                 1454300400021 
DATA                12          1                                 1454300400022 
DATA      1DATA-ERR  1DATA      2DATA-ERR  2DATA      3DATA-ERR  31454300400023 
MISC1      MISC1-ERR  MISC2      MISC2-ERR  MISC3      MISC3-ERR  1454300400024 
MEV        MEV        MEV        MEV        MEV        MEV        1454300400025 
MEV        MEV        MEV        MEV        MEV        MEV        1454300400026 
7.8        0.2        10.0       0.2        6.6        0.2        1454300400027 
8.4        0.3        7.6        0.2        7.0        0.2        1454300400028 
ENDDATA              6          0                                 1454300400029 
ENDSUBENT           28          0                                 1454300499999 
SUBENT        14543005   20190612                             14551454300500001 
BIB                  3          5                                 1454300500002 
REACTION  1(98-CF-252(0,F)1-H-1,TER,FY,,MSC) Polar yield          1454300500003 
          2(98-CF-252(0,F)1-H-1,TER,FY,,MSC) Tripartition yield   1454300500004 
ERR-ANALYS (DATA-ERR) No information on sources of uncertainties  1454300500005 
STATUS     (TABLE) Text from Nucl.Sci.Eng.,63,41,1977,p.41.       1454300500006 
           (DEP,14543002)                                         1454300500007 
ENDBIB               5          0                                 1454300500008 
NOCOMMON             0          0                                 1454300500009 
DATA                 4          1                                 1454300500010 
DATA      1DATA-ERR  1DATA      2DATA-ERR  2                      1454300500011 
PC/FIS     PC/FIS     PC/FIS     PC/FIS                           1454300500012 
   2.83E-03   0.18E-03   3.50E-03   0.20E-03                      1454300500013 
ENDDATA              3          0                                 1454300500014 
ENDSUBENT           13          0                                 1454300599999 
ENDENTRY             5          0                                 1454399999999