ENTRY 41108 20160528 41764110800000001 SUBENT 41108001 20160528 41764110800100001 BIB 10 31 4110800100002 TITLE Cross-section for fast-neutron fission of Cm-245 and 4110800100003 angular distribution of fragments 4110800100004 AUTHOR (B.M.Gokhberg,V.A.Shigin) 4110800100005 INSTITUTE (4RUSKUR) 4110800100006 REFERENCE (J,SNP,53,406,1991) Engl.transl.of YF,53,(3),649,1991 4110800100007 (J,YF,53,(3),649,1991) Cm-245 4110800100008 (J,SNP,53,409,1991) Engl.transl.of YF,53,(3),653,1991 4110800100009 (J,YF,53,(3),653,1991) Am-242m 4110800100010 REL-REF (M,41271001,P.E.Vorotnikov+,J,YF,15,(1),34,1972) 4110800100011 Experim. details 4110800100012 (M,41271001,P.E.Vorotnikov+,J,SNP,15,20,1972) 4110800100013 Engl.Transl.of YF,15,34 4110800100014 (M,,P.E.Vorotnikov+,J,YF,16,664,1972) experim.details 4110800100015 (M,,P.E.Vorotnikov+,J,SNP,16,372,1973) 4110800100016 Engl.transl.of YF,16,664,1972 4110800100017 FACILITY (VDG,4RUSKUR) Electrostatic accelerator 4110800100018 INC-SOURCE (P-T,P-LI7,D-D) 4110800100019 DETECTOR (PROPC) Mac-Kibben proportional counter for neutrons 4110800100020 (GLASD) Glass detector for fission fragments 4110800100021 PART-DET (N,FF) 4110800100022 HISTORY (19921116C) + + Compiled at the centre - CJD + + 4110800100023 (20160604U) SD:Updated to new date formats,lower case. 4110800100024 Page of ref. YF,16,665,1972 corrected (665 -> 664); 4110800100025 Refs SNP,53,406 and SNP,53,409 were added. 4110800100026 Refs YF,15,34 and YF,16,664 moved to REL-REF. 4110800100027 ERR-T -> DATA-ERR in all Subents; ERR-T added. 4110800100028 (20170710U) M.M. Previous correction of SD was 4110800100029 checked at CJD. 4110800100030 Information was updated in TITLE,ERR-ANALYS 4110800100031 COMMENT of authors was added. 4110800100032 EN-RSL -> EN-RSL-HW , DATA-ERR -> ERR-T 4110800100033 ENDBIB 31 0 4110800100034 NOCOMMON 0 0 4110800100035 ENDSUBENT 34 0 4110800199999 SUBENT 41108002 20160528 41764110800200001 BIB 9 32 4110800200002 REACTION (96-CM-245(N,F),,SIG) 4110800200003 SAMPLE Sample has mass 30 microgram, Cm-245 content 4110800200004 is 98.3%, small admixture of Cm-244 4110800200005 5mm diameter, place 8mm from the target along ion beam4110800200006 direction. 4110800200007 EXP-YEAR (1973) 4110800200008 CORRECTION Correction were made: 4110800200009 * on spontaneous fission of Cm-244 (10-20%), 4110800200010 * on counting losses (10%), 4110800200011 * on the difference of neutron flux falling on curium4110800200012 layer and counter (0-13%), 4110800200013 * on neutron counter background (5%), 4110800200014 * on neutron detector energy sensitivity (4%), 4110800200015 * on neutron scattering on detector walls (2%), 4110800200016 * on fission-fragments detector efficiency (2%) 4110800200017 METHOD 1. 4110800200018 CS was determined by neutron flux measured by neutron 4110800200019 counter calibrated by astandard source. 4110800200020 2. 4110800200021 CS was determined by Pu-239 monitor . 4110800200022 MONITOR (94-PU-239(N,F),,SIG) and absolute measurements. Both 4110800200023 methods give coinciding results 4110800200024 COMMENT Of authors. 4110800200025 Cross section value is ~1.5b in 0.6 -2 MeV, 2.4 b at 4110800200026 0.2 MeV, 1.7b at 5 MeV ( abstract of SNP,53,406,1991) 4110800200027 ERR-ANALYS (DATA-ERR1) Error of 1-st method 4110800200028 (DATA-ERR2) Error of 2nd method 4110800200029 (ERR-3) Monitor error 4110800200030 (ERR-4) Error of flux from standard source 4110800200031 (ERR-5) Error of relative cs measurement. 4110800200032 (ERR-T) Total error . 4110800200033 STATUS (CURVE) Data are taken from fig.1 of YF,53,(3),649,19914110800200034 ENDBIB 32 0 4110800200035 COMMON 5 3 4110800200036 DATA-ERR1 DATA-ERR2 ERR-3 ERR-4 ERR-5 4110800200037 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 4110800200038 10. 5. 3. 7. 3.5 4110800200039 ENDCOMMON 3 0 4110800200040 DATA 4 21 4110800200041 EN EN-RSL-HW DATA ERR-T 4110800200042 MEV KEV B B 4110800200043 0.176 20. 2.52 0.12 4110800200044 0.284 40. 2.12 0.08 4110800200045 0.36 40. 2.22 0.13 4110800200046 0.42 40. 1.94 0.06 4110800200047 0.52 40. 1.76 0.07 4110800200048 0.624 40. 1.54 0.04 4110800200049 0.723 40. 1.52 0.04 4110800200050 0.837 40. 1.5 0.04 4110800200051 0.932 40. 1.52 0.04 4110800200052 1.06 40. 1.54 0.06 4110800200053 1.13 40. 1.56 0.06 4110800200054 1.23 40. 1.58 0.06 4110800200055 1.32 40. 1.54 0.06 4110800200056 1.44 40. 1.62 0.06 4110800200057 1.52 40. 1.69 0.05 4110800200058 1.64 40. 1.70 0.06 4110800200059 1.72 40. 1.64 0.05 4110800200060 1.82 40. 1.74 0.06 4110800200061 1.93 40. 1.58 0.05 4110800200062 2.02 40. 1.54 0.05 4110800200063 5. 40. 1.72 0.06 4110800200064 ENDDATA 23 0 4110800200065 ENDSUBENT 64 0 4110800299999 SUBENT 41108003 20160528 41764110800300001 BIB 7 12 4110800300002 REACTION (96-CM-245(N,F),,DA,FF,RSD) 4110800300003 SAMPLE Sample have mass 30 microgram, Cm-245 content 4110800300004 is 98.3%, small admixture of Cm-244 4110800300005 EXP-YEAR (1973) 4110800300006 MONITOR Absolute measurements 4110800300007 Track glass detectors were placed at 0, 30, 60,90 deg 4110800300008 at distance of 50mm from sample. 4110800300009 ANALYSIS Angular anisotropy was found by least squares method 4110800300010 form angular distributions approximated as: 4110800300011 W(angle)=W(90deg)*(1+a*COS(angle)**2) . 4110800300012 ERR-ANALYS (DATA-ERR) Type of error is not explained . 4110800300013 STATUS (CURVE) Data are taken from fig.1 of YF,53,(3),649,19914110800300014 ENDBIB 12 0 4110800300015 COMMON 1 3 4110800300016 ANG 4110800300017 ADEG 4110800300018 0. 4110800300019 ENDCOMMON 3 0 4110800300020 DATA 4 7 4110800300021 EN EN-RSL-HW DATA DATA-ERR 4110800300022 MEV KEV NO-DIM NO-DIM 4110800300023 0.176 20. 1.076 0.02 4110800300024 0.624 40. 1.076 0.02 4110800300025 0.923 40. 1.116 0.044 4110800300026 1.13 40. 1.036 0.01 4110800300027 1.32 40. 1.04 0.01 4110800300028 1.64 40. 1.08 0.02 4110800300029 5. 40. 1.1 4110800300030 ENDDATA 9 0 4110800300031 ENDSUBENT 30 0 4110800399999 SUBENT 41108004 20160528 41764110800400001 BIB 9 18 4110800400002 REACTION (95-AM-242-M(N,F),,SIG) 4110800400003 EXP-YEAR (1980) 4110800400004 SAMPLE Mass 10 microgram, Am-242-m content is 86%, 4110800400005 Am-241 content is 13.5%, Am-243 - 0.5% 4110800400006 MONITOR (94-PU-239(N,F),,SIG) 4110800400007 DECAY-DATA (95-AM-242-M,152.YR) 4110800400008 CORRECTION Correction were made: 4110800400009 * on the apparatus resolution time (1.5%), 4110800400010 * on neutron counter background (8%), 4110800400011 * on fission-fragments anisotropy sensitivity (4.5%),4110800400012 * on spontaneous fission (1-3%) 4110800400013 ERR-ANALYS (ERR-1) Error of relative cross section (~3.5%) 4110800400014 (ERR-2) Monitor error 4110800400015 (ERR-T) total error 4110800400016 STATUS (CURVE) Data are taken from fig.1 of YF,53,(3),653,19914110800400017 COMMENT Of authors. 4110800400018 CS value is ~ 1.5 n at En>1 MeV, 2.9 b at 0.16 MeV, 4110800400019 1.5b at 5 MeV. 4110800400020 ENDBIB 18 0 4110800400021 COMMON 2 3 4110800400022 ERR-2 ERR-T 4110800400023 PER-CENT PER-CENT 4110800400024 3. 5. 4110800400025 ENDCOMMON 3 0 4110800400026 DATA 4 16 4110800400027 EN EN-RSL-HW DATA ERR-1 4110800400028 MEV KEV B B 4110800400029 0.16 20. 2.93 0.12 4110800400030 0.26 20. 2.82 0.1 4110800400031 0.35 20. 2.38 0.08 4110800400032 0.46 40. 2.26 0.06 4110800400033 0.575 40. 1.96 0.04 4110800400034 0.69 40. 1.80 0.04 4110800400035 0.79 40. 1.72 0.03 4110800400036 0.89 40. 1.71 0.03 4110800400037 0.995 40. 1.62 0.03 4110800400038 1.11 40. 1.52 0.03 4110800400039 1.20 40. 1.44 0.04 4110800400040 1.31 40. 1.48 0.05 4110800400041 1.41 40. 1.44 0.02 4110800400042 1.51 40. 1.42 0.02 4110800400043 1.61 40. 1.54 0.04 4110800400044 5. 40. 1.50 0.1 4110800400045 ENDDATA 18 0 4110800400046 ENDSUBENT 45 0 4110800499999 SUBENT 41108005 20160528 41764110800500001 BIB 8 11 4110800500002 REACTION (95-AM-242-M(N,F),,DA,FF,RSD) 4110800500003 EXP-YEAR (1980) 4110800500004 SAMPLE Mass 10 microgram, Am-242-m content is 86%, 4110800500005 Am-241 content is 13.5%, Am-243 - 0.5% 4110800500006 MONITOR Absolute measurements 4110800500007 DECAY-DATA (95-AM-242-M,152.YR) 4110800500008 ANALYSIS Angular anisotropy was found by least squares method 4110800500009 from angular distributions approximated as: 4110800500010 W(angle)=W(90deg)*(1+a*COS(angle)**2) . 4110800500011 ERR-ANALYS (DATA-ERR) Type of error is not explained . 4110800500012 STATUS (CURVE) Data are taken from fig.1 of YF,53,(3),653,19914110800500013 ENDBIB 11 0 4110800500014 COMMON 1 3 4110800500015 ANG 4110800500016 ADEG 4110800500017 0. 4110800500018 ENDCOMMON 3 0 4110800500019 DATA 4 4 4110800500020 EN EN-RSL-HW DATA DATA-ERR 4110800500021 MEV KEV NO-DIM NO-DIM 4110800500022 0.224 20. 1.03 0.01 4110800500023 0.575 40. 1.03 0.01 4110800500024 0.995 40. 1.025 0.006 4110800500025 5. 40. 1.09 0.04 4110800500026 ENDDATA 6 0 4110800500027 ENDSUBENT 26 0 4110800599999 ENDENTRY 5 0 4110899999999