ENTRY L0281 20221004 L051L0281000 1 SUBENT L0281001 20221004 L051L0281001 1 BIB 11 34 L0281001 2 TITLE Electron Scattering by Calcium at 250 MeV L0281001 3 AUTHOR (M.Croissiaux,R.Hofstadter,A.E.Walker,M.R.Yearian, L0281001 4 D.G.Ravenhall,B.C.Clark,R.Herman) L0281001 5 REFERENCE (J,PR,137,B865,1965) L0281001 6 #doi:10.1103/PhysRev.137.B865 L0281001 7 INSTITUTE (1USASTF,1USAUI) L0281001 8 (2ITYITY) Universita di Roma, Roma, Italy. L0281001 9 (1USAUSA) General Motors Corporation, Warren, Michigan.L0281001 10 FACILITY (ACCEL,1USASTF) L0281001 11 DETECTOR (SPEC) The 72-in. spectrometer and ten-channel L0281001 12 counter were used in all the work. L0281001 13 SAMPLE The target material was made of naturally occurring L0281001 14 samples of calcium metal. Since Ca40 is present L0281001 15 naturally to 96.97% and the remaining Ca isotopes are L0281001 16 expected to scatter in a manner similar to Ca40, we L0281001 17 do not make the small correction required for the L0281001 18 presence of other calcium isotopes. L0281001 19 METHOD Scattered electrons pass through the spectrometer and L0281001 20 are detected in the ten-channel ladder. The relative L0281001 21 efficiencies of the different channels were measured L0281001 22 as usual by using a carbon target to provide a Rat L0281001 23 inelastic continuum over the energy interval L0281001 24 corresponding to the ten channels. As is usual with L0281001 25 such measurements, four or five energy settings of L0281001 26 the spectrometer are employed so that the peak L0281001 27 appears in a different channel in each setting. The L0281001 28 results are then combined by the computer program. In L0281001 29 this way the effects of changing relative L0281001 30 efficiencies can be averaged out. L0281001 31 ERR-ANALYS (ERR-S) The errors given are only statistical in L0281001 32 nature. L0281001 33 CORRECTION Corrected for the channel efficiencies, radiative L0281001 34 corrections, spectrometer dispersion, etc. L0281001 35 HISTORY (20221004C) BP L0281001 36 ENDBIB 34 0 L0281001 37 COMMON 3 3 L0281001 38 EN EN-ERR ANG-RSL L0281001 39 MEV MEV ARAD L0281001 40 250.0 1.5 0.033 L0281001 41 ENDCOMMON 3 0 L0281001 42 ENDSUBENT 41 0 L028100199999 SUBENT L0281002 20221004 L051L0281002 1 BIB 2 2 L0281002 2 REACTION (20-CA-40(E,EL)20-CA-40,,DA) L0281002 3 STATUS (TABLE,,M.Croissiaux,J,PR,137,B865,1965) Table I L0281002 4 ENDBIB 2 0 L0281002 5 NOCOMMON 0 0 L0281002 6 DATA 3 26 L0281002 7 ANG DATA ERR-S L0281002 8 ADEG MB/SR MB/SR L0281002 9 32.0 7.48E-01 0.41E-01 L0281002 10 35.0 2.18E-01 0.12E-01 L0281002 11 40.0 5.16E-02 0.18E-02 L0281002 12 43.0 2.30E-02 0.09E-02 L0281002 13 45.0 1.16E-02 0.04E-02 L0281002 14 47.0 5.09E-03 0.20E-03 L0281002 15 50.0 1.62E-03 0.07E-03 L0281002 16 52.0 7.85E-04 0.78E-04 L0281002 17 53.0 8.22E-04 0.40E-04 L0281002 18 54.0 5.46E-04 0.55E-04 L0281002 19 55.0 5.46E-04 0.30E-04 L0281002 20 56.0 5.42E-04 0.33E-04 L0281002 21 57.0 4.37E-04 0.19E-04 L0281002 22 58.0 5.46E-04 0.40E-04 L0281002 23 60.0 4.97E-04 0.19E-04 L0281002 24 65.0 4.28E-04 0.22E-04 L0281002 25 70.0 3.07E-04 0.13E-04 L0281002 26 75.0 1.55E-04 0.07E-04 L0281002 27 78.0 7.76E-05 0.40E-05 L0281002 28 85.0 2.26E-05 0.13E-05 L0281002 29 90.0 7.46E-06 0.30E-06 L0281002 30 95.0 1.66E-06 0.21E-06 L0281002 31 100.0 1.70E-07 0.57E-07 L0281002 32 105.0 3.58E-07 0.60E-07 L0281002 33 115.0 4.44E-07 1.00E-07 L0281002 34 125.0 2.93E-07 0.80E-07 L0281002 35 ENDDATA 28 0 L0281002 36 ENDSUBENT 35 0 L028100299999 SUBENT L0281003 20221004 L051L0281003 1 BIB 2 2 L0281003 2 REACTION (20-CA-40(E,INL)20-CA-40,PAR,DA) L0281003 3 STATUS (TABLE,,M.Croissiaux,J,PR,137,B865,1965) Table II L0281003 4 ENDBIB 2 0 L0281003 5 COMMON 4 3 L0281003 6 E-LVL E-LVL E-LVL E-LVL L0281003 7 MEV MEV MEV MEV L0281003 8 3.35 3.73 3.9 4.48 L0281003 9 ENDCOMMON 3 0 L0281003 10 DATA 4 22 L0281003 11 ANG DATA ERR-S DATA-APRX L0281003 12 ADEG MB/SR MB/SR MB/SR L0281003 13 32.0 0.0 L0281003 14 35.0 17.6E-04 17.0E-04 L0281003 15 40.0 70.00E-04 20.00E-04 L0281003 16 43.0 58.66E-04 8.40E-04 L0281003 17 45.0 52.97E-04 5.30E-04 L0281003 18 47.0 43.21E-04 2.70E-04 L0281003 19 50.0 37.00E-04 1.60E-04 L0281003 20 53.0 21.15E-04 0.80E-04 L0281003 21 55.0 23.42E-04 0.80E-04 L0281003 22 57.0 13.16E-04 0.36E-04 L0281003 23 60.0 10.00E-04 0.35E-04 L0281003 24 65.0 5.17E-04 0.36E-04 L0281003 25 70.0 2.92E-04 0.30E-04 L0281003 26 75.0 1.49E-04 0.15E-04 L0281003 27 78.0 9.65E-05 1.00E-05 L0281003 28 85.0 4.02E-05 0.50E-05 L0281003 29 90.0 2.58E-05 0.02E-05 L0281003 30 95.0 1.86E-05 0.40E-05 L0281003 31 100.0 8.80E-06 4.00E-06 L0281003 32 105.0 5.14E-06 0.35E-06 L0281003 33 115.0 2.75E-06 0.27E-06 L0281003 34 125.0 8.94E-07 2.00E-07 L0281003 35 ENDDATA 24 0 L0281003 36 ENDSUBENT 35 0 L028100399999 ENDENTRY 3 0 L028199999999