ENTRY            12547   20220204                             14961254700000001 
SUBENT        12547001   20220204                             14961254700100001 
BIB                 10         27                                 1254700100002 
TITLE      On the angular distribution of fast neutrons scattered 1254700100003 
            by hydrogen, deuterium and helium                     1254700100004 
AUTHOR     (H.H.Barschall,M.H.Kanner)                             1254700100005 
REFERENCE  (J,PR,58,590,1940)                                     1254700100006 
           #doi:10.1103/PhysRev.58.590                            1254700100007 
INSTITUTE  (1USAPTN)                                              1254700100008 
FACILITY   (ACCEL,1USAPTN)                                        1254700100009 
INC-SOURCE (D-D) The d-d reaction was used as a neutron source.   1254700100010 
           The deuterons were accelerated by the voltage          1254700100011 
           supplied by the transformer-rectifier set in this      1254700100012 
           laboratory.                                            1254700100013 
DETECTOR   (IOCH) For the present experiments a special           1254700100014 
           ionization chamber was constructed which makes         1254700100015 
           possible the application of high fields over large     1254700100016 
           volumes.                                               1254700100017 
METHOD     (REC) Experiments were carried out in the following    1254700100018 
           three gas mixtures: 5 atmos. Kr+4 atmos. H2, 5 atmos.  1254700100019 
           Kr+4 atmos. D2, 7 atmos. He. Krypton is added in       1254700100020 
           order to reduce the range of the recoil protons and    1254700100021 
           deuterons. The maximum range of the H recoils from     1254700100022 
           25-MeV neutrons was 1.2 cm, that of the D and He       1254700100023 
           recoils smaller.                                       1254700100024 
STATUS     (TABLE) page 596.                                      1254700100025 
HISTORY    (19840210C)                                            1254700100026 
           (20051110C) DR format updated                          1254700100027 
           (20220204A) BP: Added ERR-ANALYS, STATUS, INC-SOURCE,  1254700100028 
                       METHOD, doi.                               1254700100029 
ENDBIB              27          0                                 1254700100030 
NOCOMMON             0          0                                 1254700100031 
ENDSUBENT           30          0                                 1254700199999 
SUBENT        12547002   20220204                             14961254700200001 
BIB                  3          7                                 1254700200002 
REACTION   (2-HE-0(N,EL)2-HE-0,,SIG)                              1254700200003 
ERR-ANALYS (DATA-ERR) The main uncertainty of this result is due  1254700200004 
           to the uncertainty in the value of the absolute        1254700200005 
           neutron yield of the d-d reaction which is estimated   1254700200006 
           to be +-20%.                                           1254700200007 
CORRECTION This number is corrected for scattered neutrons which  1254700200008 
           do not come directly from the target.                  1254700200009 
ENDBIB               7          0                                 1254700200010 
NOCOMMON             0          0                                 1254700200011 
DATA                 3          1                                 1254700200012 
EN         DATA       DATA-ERR                                    1254700200013 
MEV        B          PER-CENT                                    1254700200014 
        2.5        1.5       20.0                                 1254700200015 
ENDDATA              3          0                                 1254700200016 
ENDSUBENT           15          0                                 1254700299999 
ENDENTRY             2          0                                 1254799999999