ENTRY 10940 19860529 00001094000000001 SUBENT 10940001 19860529 00001094000100001 BIB 13 44 1094000100002 INSTITUTE (1USADAV,1USAHED) 1094000100003 REFERENCE (J,PR/C,23,1015,8103) 1094000100004 FACILITY (CYCLO) UNIVERSITY OF CALIFORNIA AT DAVIS CYCLOTRON 1094000100005 AUTHOR (C.ZANELLI,P.URONE,J.ROMERO,F.BRADY,M.JOHNSON, 1094000100006 G.NEEDHAM,J.ULLMANN,D.JOHNSON) 1094000100007 TITLE TOTAL NON-ELASTIC CROSS SECTIONS OF NEUTRONS ON 1094000100008 C,O,CA,AND FE AT 40.3 AND 50.4 MEV 1094000100009 INC-SOURCE (P-LI7) PROTONS ON LI-7. BEAM COLLIMATED TO 15-MM BY 1094000100010 15-MM SPOT USING 1.5-METER LONG IRON CHANNEL. 1094000100011 DETECTOR (TELES,SCIN) FOWARD DETECTOR CONSISTS OF 1-MM THICK 1094000100012 NE-102 VETO SCINTILLATOR, CH2 CONVERTER, AND TWO 1-MM 1094000100013 NE-102 SCINTILLATORS SEPARATED BY A COPPER ABSORBER. 1094000100014 (SCIN) 8-INCH DIAMETER BY 3-INCH THICK LIQUID 1094000100015 SCINTILLATOR USED FOR DETECTION OF TRANSMITTED 1094000100016 NEUTRONS. 1094000100017 METHOD (TOF) TIME OF FLIGHT. TRANSMISSION TECHNIQUE USED. 1094000100018 SHADOW BAR USED FOR BACKGROUND MEASUREMENTS ONLY. 1094000100019 UNNORMALIZED ELASTIC CROSS SECTIONS DETERMINED FROM 1094000100020 OPTICAL MODEL CALCULATIONS,NON-ELASTIC CROSS SECTIONS 1094000100021 DETERMINED USING TRANSMISSION DATA, TOTAL CROSS 1094000100022 SECTIONS AND CALCULATED ELASTIC CROSS SECTIONS. 1094000100023 NEUTRON PULSE HEIGHT AND PULSE SHAPE DISCRIMINATION 1094000100024 USED. 1094000100025 CORRECTION CORRECTIONS MADE FOR TARGET ATTENUATION, INELASTIC 1094000100026 SCATTERING CONTRIBUTIONS, AND VARIATION OF DETECTOR 1094000100027 EFFICIENCY WITH DETECTION ANGLE. 1094000100028 ERR-ANALYS QUOTED ERRORS ARE PRIMARILY STATISTICAL. LARGEST 1094000100029 CONTRIBUTION DUE TO STATISTICAL UNCERTAINTY IN NUMBER 1094000100030 OF MONITOR COUNTS. ESTIMATED UNCERTAINTIES OF 1094000100031 2-4 PERCENT DUE TO APPROXIMATIONS RELATING MEASURED 1094000100032 CROSS SECTIONS TO THE TOTAL AND ELASTIC CROSS SECTIONS1094000100033 ARE NOT INCLUDED. 1094000100034 ANALYSIS CALCULATED RELATIVE ELASTIC CROSS SECTIONS USING 1094000100035 OPTICAL MODELS. DETERMINED NORMALIZATION FACTOR FOR 1094000100036 ELASTIC CROSS SECTIONS FROM MEASURED TRANSMISSION 1094000100037 DATA AND FROM TOTAL CROSS SECTIONS TAKEN FROM 1094000100038 AUMAN, PHYS.REV., C5,1(1972) AND C.ZANELLI, 1094000100039 TO BE PUBLISHED. NON-ELASTIC CROSS 1094000100040 SECTIONS CALCULATED BY SUBTRACTION OF ELASTIC FROM 1094000100041 TOTAL CROSS SECTIONS. 1094000100042 STATUS (APRVD) APPROVED BY C.ZANELLI, 81/5/22. 1094000100043 (COREL,12916001) 1094000100044 HISTORY (810408C) 1094000100045 (860529A) BIB UPDATES. 1094000100046 ENDBIB 44 0 1094000100047 NOCOMMON 0 0 1094000100048 ENDSUBENT 47 0 1094000199999 SUBENT 10940002 19810428 00001094000200001 BIB 3 4 1094000200002 REACTION (6-C-0(N,NON),,SIG) 1094000200003 SAMPLE NATURAL CARBON, 3.66E23 NUCLEI/CM 1094000200004 ASSUMED (ASSUM,6-C-0(N,TOT),,SIG) TAKEN FROM AUMAN, PHYS.REV., 1094000200005 C5,1(1972)) 1094000200006 ENDBIB 4 0 1094000200007 NOCOMMON 0 0 1094000200008 DATA 5 2 1094000200009 EN DATA DATA-ERR ASSUM ASSUM-ERR 1094000200010 MEV MB MB MB MB 1094000200011 40.3 356. 28. 1118. 1.3 1094000200012 50.4 344. 28. 938. 3.0 1094000200013 ENDDATA 4 0 1094000200014 ENDSUBENT 13 0 1094000299999 SUBENT 10940003 19810428 00001094000300001 BIB 4 6 1094000300002 REACTION (8-O-0(N,NON),,SIG) 1094000300003 SAMPLE WATER SAMPLE USED 1094000300004 MONITOR KNOWN HYDROGEN CROSS SECTIONS USED TO SEPERATE OXYGEN 1094000300005 CROSS SECTIONS FROM WATER DATA. 1094000300006 ASSUMED (ASSUM,8-O-0(N,TOT),,SIG) TAKEN FROM AUMAN, PHYS.REV., 1094000300007 C5,1(1972) 1094000300008 ENDBIB 6 0 1094000300009 NOCOMMON 0 0 1094000300010 DATA 5 2 1094000300011 EN DATA DATA-ERR ASSUM ASSUM-ERR 1094000300012 MEV MB MB MB MB 1094000300013 40.3 416. 35. 1398. 6.6 1094000300014 50.4 387. 45. 1208. 5.6 1094000300015 ENDDATA 4 0 1094000300016 ENDSUBENT 15 0 1094000399999 SUBENT 10940004 19860529 00001094000400001 BIB 3 3 1094000400002 REACTION (20-CA-0(N,NON),,SIG) 1094000400003 SAMPLE NATURAL CALCIUM, 8.62E23 NUCLEI/CM 1094000400004 HISTORY (820305A) BIB CORRECTION. 1094000400005 ENDBIB 3 0 1094000400006 NOCOMMON 0 0 1094000400007 DATA 3 2 1094000400008 EN DATA DATA-ERR 1094000400009 MEV MB MB 1094000400010 40.3 930. 53. 1094000400011 50.4 849. 112. 1094000400012 ENDDATA 4 0 1094000400013 ENDSUBENT 12 0 1094000499999 SUBENT 10940005 19860529 00001094000500001 BIB 3 3 1094000500002 REACTION (26-FE-0(N,NON),,SIG) 1094000500003 SAMPLE NATURAL IRON, 2.38E23 NUCLEI/CM 1094000500004 HISTORY (820305A) BIB CORRECTION. 1094000500005 ENDBIB 3 0 1094000500006 NOCOMMON 0 0 1094000500007 DATA 3 2 1094000500008 EN DATA DATA-ERR 1094000500009 MEV MB MB 1094000500010 40.3 909. 39. 1094000500011 50.4 899. 42. 1094000500012 ENDDATA 4 0 1094000500013 ENDSUBENT 12 0 1094000599999 ENDENTRY 5 0 1094099999999