ENTRY C2637 20210614 C205C263700000001 SUBENT C2637001 20210614 C205C263700100001 BIB 9 15 C263700100002 TITLE Cross Sections for p-p Scattering at 330 and 225 Mev C263700100003 AUTHOR (O.Chamberlain,G.Pettengill,E.Segre,C.Wiegand) C263700100004 REFERENCE (J,PR,93,1424(1),1954) C263700100005 #doi:10.1103/PhysRev.93.1424 C263700100006 INSTITUTE (1USABRK) C263700100007 FACILITY (SYNCY,1USABRK) C263700100008 DETECTOR (SCIN) The use of scintillation counters ensured C263700100009 counting efficiencies of substantially 100 percent C263700100010 and also allowed a pulse-height investigation of beam C263700100011 homogeneity. C263700100012 SAMPLE The target is constructed of polystyrene foam. Liquid C263700100013 hydrogen, 2.8 g/cm2. C263700100014 ERR-ANALYS (DATA-ERR) The errors shown include statistical and C263700100015 target-thickness uncertainties. C263700100016 HISTORY (20210614C) BP C263700100017 ENDBIB 15 0 C263700100018 NOCOMMON 0 0 C263700100019 ENDSUBENT 18 0 C263700199999 SUBENT C2637002 20210614 C205C263700200001 BIB 4 14 C263700200002 REACTION (1-H-1(P,EL)1-H-1,,DA) C263700200003 METHOD (COINC) Attenuation of the external proton beam in C263700200004 liquid hydrogen was measured with standard counting C263700200005 techniques. C263700200006 ANALYSIS The counting rate of counters 1-2-3 in C263700200007 coincidence was subtracted from the 1-2 coincidence C263700200008 rate and divided by the latter to obtain the C263700200009 attenuation occurring between counters 2 and 3. The C263700200010 difference in this quantity for the target filled C263700200011 with liquid hydrogen and for the empty target is C263700200012 attributed to scattering of the beam through an angle C263700200013 greater than the average half-angle subtended by the C263700200014 rear counter (No. 3). C263700200015 STATUS (TABLE) page 1424. C263700200016 ENDBIB 14 0 C263700200017 COMMON 1 3 C263700200018 ANG-CM-MIN C263700200019 ADEG C263700200020 18.0 C263700200021 ENDCOMMON 3 0 C263700200022 DATA 3 2 C263700200023 EN DATA DATA-ERR C263700200024 MEV MB/SR MB/SR C263700200025 330.0 3.72 0.15 C263700200026 225.0 3.56 0.15 C263700200027 ENDDATA 4 0 C263700200028 ENDSUBENT 27 0 C263700299999 ENDENTRY 2 0 C263799999999