ENTRY 10605 20190717 14521060500000001 SUBENT 10605001 20190717 14521060500100001 BIB 10 28 1060500100002 TITLE Neutron multiplicity distributions in the spontaneous 1060500100003 fission of 246Cm, 248Cm, and 252Cf 1060500100004 AUTHOR (R.W.Stoughton,J.Halperin,C.E.Bemis,H.W.Schmitt) 1060500100005 REFERENCE (J,NSE,50,169,1973) 1060500100006 #NSR: 1973ST04 1060500100007 (P,ORNL-4791,26,1972) Preliminary data. 1060500100008 (J,BAP,18,628(EK14),1973) 1060500100009 #NSR: 1973PLZX 1060500100010 INSTITUTE (1USAORL) 1060500100011 METHOD (COINC) Coincidence of fission neutrons and fission 1060500100012 fragments. 1060500100013 DETECTOR (HE3SP,SIBAR) Neutron multiplicity counter consisting 1060500100014 of 20 3He detectors in cylindrical paraffin matrix 1060500100015 surrounding the sample cavity. Surface barrier 1060500100016 fission fragment detector. 1060500100017 MONITOR (98-CF-252(0,F),,NU) Average of literature values. 1060500100018 Used to calculate detector efficiency 1060500100019 CORRECTION Data corrected for background neutrons, neutrons from 1060500100020 undetected fissions, and effects of sample impurities. 1060500100021 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. 1060500100022 HISTORY (19760504C) 1060500100023 (19831109A) Converted to reaction formalism. 1060500100024 (20040726A) Converted to new date formats, lower case. 1060500100025 Updated units. 1060500100026 (20170824A) BP: Updated entry, added doi and fission 1060500100027 neutron multiplicity distribution data. 1060500100028 (20190717A) OG. 3rd reference added. #NSR added. 1060500100029 Sub008 added. 1060500100030 ENDBIB 28 0 1060500100031 COMMON 1 3 1060500100032 MONIT 1060500100033 PRT/FIS 1060500100034 3.73 1060500100035 ENDCOMMON 3 0 1060500100036 ENDSUBENT 35 0 1060500199999 SUBENT 10605002 20170824 14331060500200001 BIB 3 5 1060500200002 REACTION (96-CM-246(0,F),PR,NU) 1060500200003 SAMPLE (96-CM-246,ENR=0.9999) The 246Cm was deposited into a 1060500200004 40 microg/cm2 gold layer and ~10 microg/cm2 below the 1060500200005 surface by using a mass separator. 1060500200006 STATUS (TABLE) page 170. 1060500200007 ENDBIB 5 0 1060500200008 NOCOMMON 0 0 1060500200009 DATA 2 1 1060500200010 DATA DATA-ERR 1060500200011 PRT/FIS PRT/FIS 1060500200012 2.86 0.06 1060500200013 ENDDATA 3 0 1060500200014 ENDSUBENT 13 0 1060500299999 SUBENT 10605003 20170824 14331060500300001 BIB 3 12 1060500300002 REACTION (96-CM-248(0,F),PR,NU) 1060500300003 SAMPLE The enriched 248Cm contained 244,245,246,247Cm. It 1060500300004 was electrodeposited from dilute natric acid 1060500300005 solutions onto platinum disc of 1-cm diam. It was 1060500300006 covered with ~40 microg/cm2 gold by a sputtering 1060500300007 technique to prevent contamination of the counting 1060500300008 equipment. 1060500300009 (96-CM-246,ENR=0.019) 1060500300010 (96-CM-247,ENR=0.0001) 1060500300011 (96-CM-245,ENR=0.0001) 1060500300012 (96-CM-244,ENR=0.00001) 1060500300013 STATUS (TABLE) page 170. 1060500300014 ENDBIB 12 0 1060500300015 NOCOMMON 0 0 1060500300016 DATA 2 1 1060500300017 DATA DATA-ERR 1060500300018 PRT/FIS PRT/FIS 1060500300019 3.14 0.06 1060500300020 ENDDATA 3 0 1060500300021 ENDSUBENT 20 0 1060500399999 SUBENT 10605004 20170824 14331060500400001 BIB 4 8 1060500400002 REACTION (98-CF-252(0,F),PR,NU) 1060500400003 SAMPLE It was electrodeposited from dilute natric acid 1060500400004 solutions onto platinum disc of 1-cm dam. It was 1060500400005 covered with ~40 microg/cm2 gold by a sputtering 1060500400006 technique to prevent contamination of the counting 1060500400007 equipment. 1060500400008 STATUS (TABLE) page 170. 1060500400009 HISTORY (20170824C) BP 1060500400010 ENDBIB 8 0 1060500400011 NOCOMMON 0 0 1060500400012 DATA 2 1 1060500400013 DATA DATA-ERR 1060500400014 PRT/FIS PRT/FIS 1060500400015 3.72 0.06 1060500400016 ENDDATA 3 0 1060500400017 ENDSUBENT 16 0 1060500499999 SUBENT 10605005 20170824 14331060500500001 BIB 4 8 1060500500002 REACTION (98-CF-252(0,F),PR/NUM,NU) 1060500500003 SAMPLE It was electrodeposited from dilute natric acid 1060500500004 solutions onto platinum disc of 1-cm diam. It was 1060500500005 covered with ~40 microg/cm2 gold by a sputtering 1060500500006 technique to prevent contamination of the counting 1060500500007 equipment. 1060500500008 STATUS (TABLE) Table I, page 170. 1060500500009 HISTORY (20170824C) BP 1060500500010 ENDBIB 8 0 1060500500011 NOCOMMON 0 0 1060500500012 DATA 3 7 1060500500013 PART-OUT DATA DATA-ERR 1060500500014 NO-DIM NO-DIM NO-DIM 1060500500015 0. 0.003 0.008 1060500500016 1. 0.026 0.003 1060500500017 2. 0.118 0.082 1060500500018 3. 0.275 0.095 1060500500019 4. 0.322 0.060 1060500500020 5. 0.190 0.030 1060500500021 6. 0.056 0.020 1060500500022 ENDDATA 9 0 1060500500023 ENDSUBENT 22 0 1060500599999 SUBENT 10605006 20170824 14331060500600001 BIB 4 6 1060500600002 REACTION (96-CM-246(0,F),PR/NUM,NU) 1060500600003 SAMPLE (96-CM-246,ENR=0.9999) The 246Cm was deposited into a 1060500600004 40 microg/cm2 gold layer and ~10 microg/cm2 below the 1060500600005 surface by using a mass separator. 1060500600006 STATUS (TABLE) Table II, page 171. 1060500600007 HISTORY (20170824C) BP 1060500600008 ENDBIB 6 0 1060500600009 NOCOMMON 0 0 1060500600010 DATA 3 7 1060500600011 PART-OUT DATA DATA-ERR 1060500600012 NO-DIM NO-DIM NO-DIM 1060500600013 0. 0.015 0.001 1060500600014 1. 0.092 0.006 1060500600015 2. 0.263 0.012 1060500600016 3. 0.348 0.011 1060500600017 4. 0.213 0.010 1060500600018 5. 0.060 0.010 1060500600019 6. 0.008 0.006 1060500600020 ENDDATA 9 0 1060500600021 ENDSUBENT 20 0 1060500699999 SUBENT 10605007 20170824 14331060500700001 BIB 4 13 1060500700002 REACTION (96-CM-248(0,F),PR/NUM,NU) 1060500700003 SAMPLE The enriched 248Cm contained 244,245,246,247Cm. It 1060500700004 was electrodeposited from dilute natric acid 1060500700005 solutions onto platinum disc of 1-cm diam. It was 1060500700006 covered with ~40 microg/cm2 gold by a sputtering 1060500700007 technique to prevent contamination of the counting 1060500700008 equipment. 1060500700009 (96-CM-246,ENR=0.019) 1060500700010 (96-CM-247,ENR=0.0001) 1060500700011 (96-CM-245,ENR=0.0001) 1060500700012 (96-CM-244,ENR=0.00001) 1060500700013 STATUS (TABLE) Table II, page 171. 1060500700014 HISTORY (20170824C) BP 1060500700015 ENDBIB 13 0 1060500700016 NOCOMMON 0 0 1060500700017 DATA 3 7 1060500700018 PART-OUT DATA DATA-ERR 1060500700019 NO-DIM NO-DIM NO-DIM 1060500700020 0. 0.007 0.003 1060500700021 1. 0.056 0.012 1060500700022 2. 0.212 0.025 1060500700023 3. 0.356 0.026 1060500700024 4. 0.267 0.014 1060500700025 5. 0.089 0.008 1060500700026 6. 0.013 0.004 1060500700027 ENDDATA 9 0 1060500700028 ENDSUBENT 27 0 1060500799999 SUBENT 10605008 20190717 14521060500800001 BIB 5 11 1060500800002 REACTION 1(96-CM-246(0,F),PRV,AP,LF) 1060500800003 2(96-CM-246(0,F),PRV,AP,HF) 1060500800004 3(96-CM-246(0,F),SEC,AKE,LF+HF) Average total 1060500800005 kinetic energy of post-neutron-emission fragments 1060500800006 MISC-COL (MISC1) Dispersion of mass distribution 1060500800007 (MISC2) Dispersion of energy distribution 1060500800008 SAMPLE (96-CM-246,ENR=0.9999) The 246Cm was deposited into a 1060500800009 40 microg/cm2 gold layer and ~10 microg/cm2 below the 1060500800010 surface by using a mass separator. 1060500800011 STATUS (TABLE) Text in Bull.Am.Phys.Soc.,18,628(EK14),1973. 1060500800012 HISTORY (20190717C) OG. 1060500800013 ENDBIB 11 0 1060500800014 NOCOMMON 0 0 1060500800015 DATA 5 1 1060500800016 DATA 1DATA 2DATA 3MISC1 MISC2 1060500800017 NO-DIM NO-DIM MEV NO-DIM MEV 1060500800018 106.5 139.5 181.3 6.6 10.8 1060500800019 ENDDATA 3 0 1060500800020 ENDSUBENT 19 0 1060500899999 ENDENTRY 8 0 1060599999999