ENTRY M0286 20160224 M082M028600000001 SUBENT M0286001 20160224 M082M028600100001 BIB 10 26 M028600100002 TITLE Energy and angular distributions of photoneutrons M028600100003 produced by 70-MeV X-rays. M028600100004 AUTHOR (W.R.Dixon) M028600100005 INSTITUTE (1CANOTC) M028600100006 REFERENCE (J,CJP,33,785,1955) M028600100007 FACILITY (SYNCH,1CANOTC) M028600100008 INC-SOURCE (BRST) M028600100009 The length of the X-ray pulse is about 200 microsec. M028600100010 ANALYSIS Angular distributions were approximated with a form M028600100011 A + B*sin**2. M028600100012 ERR-ANALYS (ERR-S) Statistical errors are presented. M028600100013 COMMENT For the heavy elements the angular distributions are M028600100014 essentially isotropic, indicating the predominance M028600100015 of the evaporation process, while for the light M028600100016 elements there is also an anisotropic component M028600100017 peaked at 90 degrees. The energy distributions show M028600100018 that most of neutrons can be attributed to an M028600100019 evaporation process which is governed by a constant M028600100020 nuclear temperature. M028600100021 A high-energy tail is attributed to direct interaction.M028600100022 HISTORY (19860108C) Data were compiled at SCJAD of Saratov M028600100023 State University. M028600100024 (19910202A) Corrected by V.Varlamov, V.Mclane. M028600100025 (20160224A) Corrected by SD and VV: dates, REACTION, M028600100026 STATUS, lowercase, SUBENT 010 deleted (average of M028600100027 DDX at 60 and 90 deg). M028600100028 ENDBIB 26 0 M028600100029 COMMON 1 3 M028600100030 EN-MAX M028600100031 MEV M028600100032 70. M028600100033 ENDCOMMON 3 0 M028600100034 ENDSUBENT 33 0 M028600199999 SUBENT M0286002 20160224 M082M028600200001 BIB 8 12 M028600200002 REACTION (82-PB-0(G,X)0-NN-1,,DA,,BRA/REL) M028600200003 SAMPLE Disk with radius 1.21 cm and length 7.9 M028600200004 cm, weight = 328g. M028600200005 METHOD (PHD) M028600200006 DETECTOR (SCIN) A zinc sulphide-lucite scintillation detector M028600200007 at distance of 25 cm from the target. M028600200008 CORRECTION Correction factor for self-scattering of the M028600200009 photoneutrons within the target = 1.1 M028600200010 ADD-RES Anisotropy coefficient b/a = -0.08 with error 0.08. M028600200011 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600200012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600200013 BRA, SAMPLE, STATUS. M028600200014 ENDBIB 12 0 M028600200015 NOCOMMON 0 0 M028600200016 DATA 3 7 M028600200017 ANG DATA ERR-S M028600200018 ADEG ARB-UNITS ARB-UNITS M028600200019 45. 40.69 1.64 M028600200020 60. 41.10 2.06 M028600200021 75. 38.22 1.64 M028600200022 90. 38.63 1.64 M028600200023 105. 39.04 1.64 M028600200024 120. 36.16 2.06 M028600200025 135. 39.04 1.64 M028600200026 ENDDATA 9 0 M028600200027 ENDSUBENT 26 0 M028600299999 SUBENT M0286003 20160224 M082M028600300001 BIB 8 11 M028600300002 REACTION (50-SN-0(G,X)0-NN-1,,DA,,BRA/REL) M028600300003 SAMPLE Disk with radius 1.3 cm and length 9.1 cm,weight=306gr M028600300004 METHOD (PHD) M028600300005 DETECTOR (SCIN).A zinc sulphide-lucite detector at a distance M028600300006 of 25 cm of the target. M028600300007 CORRECTION Correction factor for self-scattering of the M028600300008 photoneutrons within the target = 1.08. M028600300009 ADD-RES Anisotropy coefficient b/a = 0.12 with error = 0.17 M028600300010 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600300011 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600300012 BRA, SAMPLE, STATUS. M028600300013 ENDBIB 11 0 M028600300014 NOCOMMON 0 0 M028600300015 DATA 3 6 M028600300016 ANG DATA ERR-S M028600300017 ADEG ARB-UNITS ARB-UNITS M028600300018 60. 20.8 1.6 M028600300019 75. 23.0 1.5 M028600300020 90. 21.6 1.4 M028600300021 105. 21.8 1.6 M028600300022 120. 20.8 1.5 M028600300023 135. 21.2 1.2 M028600300024 ENDDATA 8 0 M028600300025 ENDSUBENT 24 0 M028600399999 SUBENT M0286004 20160224 M082M028600400001 BIB 8 12 M028600400002 REACTION (29-CU-0(G,X)0-NN-1,,DA,,BRA/REL) M028600400003 SAMPLE Disk with radius 1.44 cm and length 7.1 cm, weight = M028600400004 408 g. M028600400005 METHOD (PHD) M028600400006 DETECTOR (SCIN) A zinc sulphide-lucite detector at a distance M028600400007 of 25 cm from the target. M028600400008 CORRECTION Correction factor for self-scattering of photoneutrons M028600400009 within the target = 1.48. M028600400010 ADD-RES Anisotropy coefficient b/a = 0.23 with error = 0.15 M028600400011 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600400012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600400013 BRA, SAMPLE, STATUS. M028600400014 ENDBIB 12 0 M028600400015 NOCOMMON 0 0 M028600400016 DATA 3 7 M028600400017 ANG DATA ERR-S M028600400018 ADEG ARB-UNITS ARB-UNITS M028600400019 45. 34.11 1.64 M028600400020 60. 32.47 1.64 M028600400021 75. 33.70 1.85 M028600400022 90. 33.29 1.23 M028600400023 105. 32.88 1.64 M028600400024 120. 27.95 1.85 M028600400025 135. 29.59 1.44 M028600400026 ENDDATA 9 0 M028600400027 ENDSUBENT 26 0 M028600499999 SUBENT M0286005 20160224 M082M028600500001 BIB 8 12 M028600500002 REACTION (26-FE-0(G,X)0-NN-1,,DA,,BRA/REL) M028600500003 SAMPLE Disk with radius 1.26 cm and length 7.7 cm, weight = M028600500004 306 g. M028600500005 METHOD (PHD) M028600500006 DETECTOR (SCIN) A zinc sulphide-lucite detector at a distance M028600500007 of 25 cm from the target. M028600500008 CORRECTION Correction factor for self-scattering of M028600500009 photoneutrons within the target = 1.35. M028600500010 ADD-RES Anisotropy coefficient b/a = 0.09 with error = 0.25. M028600500011 STATUS (CURVE) Fig.2 from CJP,33,785,1955 M028600500012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600500013 BRA, SAMPLE, STATUS. M028600500014 ENDBIB 12 0 M028600500015 NOCOMMON 0 0 M028600500016 DATA 3 7 M028600500017 ANG DATA ERR-S M028600500018 ADEG ARB-UNITS ARB-UNITS M028600500019 45. 21.2 1.8 M028600500020 60. 19.8 1.6 M028600500021 75. 21.8 1.8 M028600500022 90. 20.0 1.7 M028600500023 105. 18.8 1.4 M028600500024 120. 19.6 1.7 M028600500025 135. 18.0 1.8 M028600500026 ENDDATA 9 0 M028600500027 ENDSUBENT 26 0 M028600599999 SUBENT M0286006 20160224 M082M028600600001 BIB 8 12 M028600600002 REACTION (13-AL-27(G,X)0-NN-1,,DA,,BRA/REL) M028600600003 SAMPLE Disk with radius 1.25 cm and length 8 cm, weight = M028600600004 108 g. M028600600005 METHOD (PHD) M028600600006 DETECTOR (SCIN) A zinc sulphide-lucite detector at distance M028600600007 of 25 cm from the target. M028600600008 CORRECTION Correction factor for self-scattering of the M028600600009 photoneutrons from the target = 1.17. M028600600010 ADD-RES Anisotropy coefficient b/a = 0.36 with error = 0.29. M028600600011 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600600012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600600013 BRA, SAMPLE, STATUS. M028600600014 ENDBIB 12 0 M028600600015 NOCOMMON 0 0 M028600600016 DATA 3 7 M028600600017 ANG DATA ERR-S M028600600018 ADEG ARB-UNITS ARB-UNITS M028600600019 45. 12.4 1.1 M028600600020 60. 10.0 1.4 M028600600021 75. 11.60 1.45 M028600600022 90. 12.8 1.0 M028600600023 105. 11.5 1.5 M028600600024 120. 9.20 1.35 M028600600025 135. 9.60 0.95 M028600600026 ENDDATA 9 0 M028600600027 ENDSUBENT 26 0 M028600699999 SUBENT M0286007 20160224 M082M028600700001 BIB 8 12 M028600700002 REACTION (6-C-0(G,X)0-NN-1,,DA,,BRA/REL) M028600700003 SAMPLE Disk with radius 2.37 cm, length = 8.4 cm, weight = M028600700004 246 g. M028600700005 METHOD (PHD) M028600700006 DETECTOR (SCIN) A zinc sulphide-lucite detector at a distance M028600700007 of 25 cm from the target. M028600700008 CORRECTION Correction factor for self-scattering of the M028600700009 photoneutrons within the target = 1.8. M028600700010 ADD-RES Anisotropy coefficient B/A = 1.6 with error 0.8. M028600700011 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600700012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600700013 BRA, SAMPLE, STATUS. M028600700014 ENDBIB 12 0 M028600700015 NOCOMMON 0 0 M028600700016 DATA 3 7 M028600700017 ANG DATA ERR-S M028600700018 ADEG ARB-UNITS ARB-UNITS M028600700019 45. 8.60 0.55 M028600700020 60. 10.10 0.65 M028600700021 75. 10.10 0.65 M028600700022 90. 10.90 0.55 M028600700023 105. 9.40 0.65 M028600700024 120. 9.20 0.65 M028600700025 135. 7.7 0.5 M028600700026 ENDDATA 9 0 M028600700027 ENDSUBENT 26 0 M028600799999 SUBENT M0286008 20160224 M082M028600800001 BIB 8 12 M028600800002 REACTION (4-BE-9(G,X)0-NN-1,,DA,,BRA/REL) M028600800003 SAMPLE Parallelepiped with dimensions 2*2*4 in and weight M028600800004 490 g. M028600800005 METHOD (PHD) M028600800006 DETECTOR (SCIN) A zinc sulphide-lucite detector at a distance M028600800007 of 25 cm from the target. M028600800008 CORRECTION Correction factor for self-scattering of the M028600800009 photoneutrons within the target = 2.6. M028600800010 ADD-RES Anisotropy coefficient B/A = 1.2 with error = 0.4. M028600800011 STATUS (CURVE) Fig.3 from CJP,33,785,1955. M028600800012 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600800013 BRA, SAMPLE, STATUS. M028600800014 ENDBIB 12 0 M028600800015 NOCOMMON 0 0 M028600800016 DATA 3 7 M028600800017 ANG DATA ERR-S M028600800018 ADEG ARB-UNITS ARB-UNITS M028600800019 45. 22.24 0.91 M028600800020 60. 21.98 1.17 M028600800021 75. 22.90 1.17 M028600800022 90. 25.50 1.04 M028600800023 105. 23.29 1.04 M028600800024 120. 22.89 1.11 M028600800025 135. 18.99 0.91 M028600800026 ENDDATA 9 0 M028600800027 ENDSUBENT 26 0 M028600899999 SUBENT M0286009 20160224 M082M028600900001 BIB 8 13 M028600900002 REACTION (4-BE-9(G,X)0-NN-1,,DA,,BRA/REL) M028600900003 SAMPLE Be in the form of a hollow cilinder with length 2. M028600900004 in, inside diameter 2.4 cm,outside diameter 4.3 cm M028600900005 and weight 91.3 g. M028600900006 DETECTOR (SCIN) A zinc sulphide-lucite detector at a distance M028600900007 at 25 cm from the target. M028600900008 METHOD (PHD) M028600900009 CORRECTION Correction factor for self-scattering of the M028600900010 photoneutrons within the target = 1.35. M028600900011 ADD-RES Anisotropy coefficient B/A = 1.2 with error = 0.4. M028600900012 STATUS (CURVE) Fig.2 from CJP,33,785,1955. M028600900013 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028600900014 BRA, SAMPLE, STATUS. M028600900015 ENDBIB 13 0 M028600900016 NOCOMMON 0 0 M028600900017 DATA 3 7 M028600900018 ANG DATA ERR-S M028600900019 ADEG ARB-UNITS ARB-UNITS M028600900020 45. 12.62 0.78 M028600900021 60. 16.26 1.04 M028600900022 75. 15.22 1.17 M028600900023 90. 16.39 0.91 M028600900024 105. 16.52 1.30 M028600900025 120. 14.44 1.24 M028600900026 135. 12.75 1.04 M028600900027 ENDDATA 9 0 M028600900028 ENDSUBENT 27 0 M028600999999 NOSUBENT M0286010 20160224 M082M028601000001 SUBENT M0286011 20160224 M082M028601100001 BIB 8 18 M028601100002 REACTION (82-PB-0(G,X)0-NN-1,,DA/DE,,BRA/REL) M028601100003 SAMPLE Roughly spherical in shape, with the radius M028601100004 corresponding to about 0.05 of a mean free part for M028601100005 inelastic scattering. M028601100006 DETECTOR (PLATE) Type Ilford C2, dimension 1*3 in**2, emulsion M028601100007 thickness = 200 mu-m. Distance from the target to M028601100008 the center of the plate = 22 cm. M028601100009 ADD-RES (THEO,COMP) M028601100010 The nuclear temperature = 1.0 with error = 0.2 MeV. M028601100011 CORRECTION The experimental distributions were corrected for the M028601100012 escape of proton tracks through the sides of the M028601100013 emulsion and for the neutron-proton scattering M028601100014 cross-section. M028601100015 COMMENT Area scanned = 140 mm**2. M028601100016 The number of acceptable tracks = 259. M028601100017 STATUS (CURVE) Fig.5 from CJP,33,785,1955. M028601100018 HISTORY (20160224A) Corrected by SD and VV: REACTION, BRS -> M028601100019 BRA, SAMPLE, STATUS. M028601100020 ENDBIB 18 0 M028601100021 COMMON 2 3 M028601100022 E-ERR ANG M028601100023 MEV ADEG M028601100024 0.25 120. M028601100025 ENDCOMMON 3 0 M028601100026 DATA 3 13 M028601100027 E DATA ERR-S M028601100028 MEV ARB-UNITS ARB-UNITS M028601100029 0.75 19.826 3.130 M028601100030 1.25 15.950 2.311 M028601100031 1.75 12.522 2.050 M028601100032 2.25 11.404 2.161 M028601100033 2.75 8.422 1.938 M028601100034 3.25 3.578 1.714 M028601100035 3.75 4.398 1.565 M028601100036 4.25 1.267 0.820 M028601100037 4.75 0.671 0.671 M028601100038 5.25 3.578 1.640 M028601100039 5.75 1.640 1.193 M028601100040 6.75 1.863 1.565 M028601100041 7.75 1.193 1.118 M028601100042 ENDDATA 15 0 M028601100043 ENDSUBENT 42 0 M028601199999 ENDENTRY 11 0 M028699999999