ENTRY 14785 20220408 14991478500000001 SUBENT 14785001 20220408 14991478500100001 BIB 12 27 1478500100002 TITLE Scattering Cross Section of Protons for 900-Kev 1478500100003 Neutrons 1478500100004 AUTHOR (W.E.Good,G.Scharff-Goldhaber) 1478500100005 REFERENCE (J,PR,58,89(1),1940) 1478500100006 #doi:10.1103/PhysRev.58.89 1478500100007 REL-REF (O,11178001,W.E.Good+,J,PR,59,917(19),1941) 1478500100008 Following measurement. 1478500100009 INSTITUTE (1USAUI) 1478500100010 INC-SOURCE (TH-BE) 13 mC RdTh, contained in a platinum tube of 1 1478500100011 cm length and 2 mm diameter, was surrounded by a 1478500100012 cylinder of beryllium metal. 1478500100013 DETECTOR (IOCH) An ionization chamber filled with 5 atmos. of 1478500100014 hydrogen, which was connected to a four stage linear 1478500100015 amplifier and a scaling circuit. 1478500100016 SAMPLE The scatterers consisted of paraffin cylinders of 1478500100017 lengths varying between 1 and 9 cm. They were placed 1478500100018 halfway between source and ionization chamber. 2.43 1478500100019 g/cm2 for the mean free path of the RdTh+ Be neutrons 1478500100020 in paraffin. 1478500100021 METHOD (REC) Recoil protons of more than 350 keV energy were 1478500100022 recorded. The gamma-ray background reduced by a lead 1478500100023 cone mounted in front of the source was well below 1478500100024 this limit. 1478500100025 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. 1478500100026 CORRECTION The correction for the obliqueness of the neutron 1478500100027 paths within the scatterer is negligible. 1478500100028 HISTORY (20220408C) BP 1478500100029 ENDBIB 27 0 1478500100030 COMMON 1 3 1478500100031 EN 1478500100032 KEV 1478500100033 900.0 1478500100034 ENDCOMMON 3 0 1478500100035 ENDSUBENT 34 0 1478500199999 SUBENT 14785002 20220408 14991478500200001 BIB 2 2 1478500200002 REACTION (1-H-1(N,TOT),,SIG) 1478500200003 STATUS (TABLE) page 89. 1478500200004 ENDBIB 2 0 1478500200005 NOCOMMON 0 0 1478500200006 DATA 2 1 1478500200007 DATA DATA-ERR 1478500200008 B B 1478500200009 3.70 0.35 1478500200010 ENDDATA 3 0 1478500200011 ENDSUBENT 10 0 1478500299999 SUBENT 14785003 20220408 14991478500300001 BIB 2 2 1478500300002 REACTION (6-C-0(N,TOT),,SIG) 1478500300003 STATUS (TABLE) page 89. 1478500300004 ENDBIB 2 0 1478500300005 NOCOMMON 0 0 1478500300006 DATA 2 1 1478500300007 DATA DATA-ERR 1478500300008 B B 1478500300009 2.63 0.25 1478500300010 ENDDATA 3 0 1478500300011 ENDSUBENT 10 0 1478500399999 ENDENTRY 3 0 1478599999999