ENTRY 10315 20020823 00001031500000001 SUBENT 10315001 20020823 00001031500100001 BIB 13 34 1031500100002 INSTITUTE (1USAWIS) 1031500100003 REFERENCE (J,PR/C,6,690,197209) 1031500100004 AUTHOR (T.G.Masterson) 1031500100005 TITLE Differential Cross Sections for Small Angle Scattering 1031500100006 of 24-MeV Neutrons by Protons 1031500100007 FACILITY (ACCEL) Tandem accelerator. 1031500100008 INC-SOURCE (D-T) 7.0 MeV deuterons were incident on a tritium gas 1031500100009 cell. 1031500100010 SAMPLE Liquid hydrocarbon scintillator, 2.5cm diam. x 2.5-cm 1031500100011 high, wrapped in aluminum foil and mounted on RCA 85751031500100012 phototube. Total number of hydrogen atoms in sample 1031500100013 (0.659 +- 0.003)10**24. 1031500100014 METHOD Both count rate of neutrons scattered by the target 1031500100015 and of neutrons of the zero degree incident beam were 1031500100016 measured. The ratio of these two count rates gives 1031500100017 the differential cross section and is independent of 1031500100018 incident neutron flux. The cross section depends only 1031500100019 on the ratio of the detector efficiencies at nearby 1031500100020 energies. 1031500100021 Open shadow bar shielding only. 1031500100022 DETECTOR (SCIN) 2.5-cm. diam. x 5.1-cm. high liquid scintillator1031500100023 mounted on AMPEREX XP1021 photomultiplier tube. 1031500100024 CORRECTION Corrections were made for: 1031500100025 . multiple scattering, 1031500100026 . finite geometry, 1031500100027 . attenuation in detector, target and air, 1031500100028 . wall effects. 1031500100029 ERR-ANALYS (DATA-ERR) Data uncertainty of approximately 1.5%, due 1031500100030 principally to uncertainties in exponential 1031500100031 attenuation, multiple scattering, and bias factors. 1031500100032 STATUS (APRVD) Approved by author. 1031500100033 HISTORY (19730530C) TJK 1031500100034 (19830118A) Converted to REACTION formalism 1031500100035 (20020823A) Updated to new date formats, lower case. 1031500100036 ENDBIB 34 0 1031500100037 COMMON 2 3 1031500100038 EN EN-ERR 1031500100039 MEV MEV 1031500100040 24.03 0.08 1031500100041 ENDCOMMON 3 0 1031500100042 ENDSUBENT 41 0 1031500199999 SUBENT 10315002 20020823 00001031500200001 BIB 1 1 1031500200002 REACTION (1-H-1(N,EL)1-H-1,,DA) 1031500200003 ENDBIB 1 0 1031500200004 NOCOMMON 0 0 1031500200005 DATA 3 2 1031500200006 ANG-CM DATA DATA-ERR 1031500200007 ADEG MB/SR MB/SR 1031500200008 39.3 31.3 0.5 1031500200009 50.5 30.7 0.6 1031500200010 ENDDATA 4 0 1031500200011 ENDSUBENT 10 0 1031500299999 ENDENTRY 2 0 1031599999999