ENTRY 30609 20130625 31603060900000001 SUBENT 30609001 20130625 31603060900100001 BIB 11 27 3060900100002 TITLE The average number of prompt neutrons and the 3060900100003 distribution of prompt neutron emission number for 3060900100004 spontaneous fission of plutonium-240, curium-242, 3060900100005 and curium-244 3060900100006 AUTHOR (Zhang Huanqiao,Liu Zuhua,Ding Shengyue,Liu Shaoming) 3060900100007 INSTITUTE (3CPRAEP) 3060900100008 REFERENCE (J,NSE,86,315,1984) Revised data 3060900100009 (J,CNP,3,(2),149,1981) in Chinese 3060900100010 METHOD (COINC) 3060900100011 DETECTOR (STANK) 60 cm diam. Spherical gadolinium loaded 3060900100012 scintillator tank for detection of fission neutrons 3060900100013 (IOCH) Ionization chamber, placed at centre of 3060900100014 scintillator tank, for detection of fissions 3060900100015 MONITOR (98-CF-252(0,F),PR,NU) = 3.743+-0.018 3060900100016 MONIT-REF (30536002,Zhang Huanqiao+,J,CNP,1,(1),9,1979) 3060900100017 COMMENT Compiler's note (1984-06-27): 3060900100018 The results in English version replace those in 3060900100019 Chinese J. Nucl.Phys.(Peking) 3060900100020 STATUS (TABLE) Table II of Nucl.Sci.Eng.86(1984)315 3060900100021 HISTORY (19811105C) KO. 3060900100022 (19840627A) KO.-Added new ref. Adopted new results.- 3060900100023 (20090725A) SD:Updated to new date formats,lower case. 3060900100024 Subentries 5 - 7 added. Made NSE first reference, 3060900100025 updated BIB sections acc. to NSE article, added 3060900100026 detailed errors. OS 3060900100027 (20130625U) On. Compiler's note moved from REFERENCE 3060900100028 to COMMENT 3060900100029 ENDBIB 27 0 3060900100030 COMMON 2 3 3060900100031 MONIT MONIT-ERR 3060900100032 PRT/FIS PRT/FIS 3060900100033 3.743 0.018 3060900100034 ENDCOMMON 3 0 3060900100035 ENDSUBENT 34 0 3060900199999 SUBENT 30609002 20090804 31403060900200001 BIB 5 17 3060900200002 REACTION (94-PU-240(0,F),PR,NU) 3060900200003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900200004 steel backing, 4.2 cm in diameter. Amount of Pu-240 was3060900200005 about 1 mg, spont. fission rate about 20/min. 3060900200006 CORRECTION The following corrections were applied (in %: 3060900200007 - False gate 0.10 3060900200008 - Dead time 0.60 3060900200009 - Delayed gamma rays -0.89 3060900200010 - Frank effect -0.40 3060900200011 ERR-ANALYS (ERR-S) Statistical error 3060900200012 (ERR-1) Error due to false gate correction 3060900200013 (ERR-2) Error due to dead time correction 3060900200014 (ERR-3) Error due to correction for delayed gammas 3060900200015 (ERR-4) Error due to correction for Frank effect 3060900200016 (ERR-5) Error from efficency determination 3060900200017 (ERR-T) Total error (0.75 %) 3060900200018 HISTORY (19840627A) KO.-Adopted new result.(Old error was 0.0173060900200019 ENDBIB 17 0 3060900200020 COMMON 6 3 3060900200021 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3060900200022 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3060900200023 0.30 0.03 0.13 0.22 0.20 0.60 3060900200024 ENDCOMMON 3 0 3060900200025 DATA 2 1 3060900200026 DATA ERR-T 3060900200027 PRT/FIS PRT/FIS 3060900200028 2.1410E+00 1.6000E-02 3060900200029 ENDDATA 3 0 3060900200030 ENDSUBENT 29 0 3060900299999 SUBENT 30609003 20090804 31403060900300001 BIB 5 19 3060900300002 REACTION (96-CM-242(0,F),PR,NU) 3060900300003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900300004 steel backing, 4.2 cm in diameter. Before 3060900300005 electrodeposition, Cm samples were purified by 3060900300006 separation from daughter products. The spont. fission 3060900300007 rates of Cm samples were about 15/min. 3060900300008 CORRECTION The following corrections were applied (in %: 3060900300009 - False gate 0.05 3060900300010 - Dead time 0.74 3060900300011 - Delayed gamma rays -0.74 3060900300012 - Frank effect -0.40 3060900300013 ERR-ANALYS (ERR-S) Statistical error 3060900300014 (ERR-1) Error due to false gate correction 3060900300015 (ERR-2) Error due to dead time correction 3060900300016 (ERR-3) Error due to correction for delayed gammas 3060900300017 (ERR-4) Error due to correction for Frank effect 3060900300018 (ERR-5) Error from efficency determination 3060900300019 (ERR-T) Total error (0.77 %) 3060900300020 HISTORY (19840627A) KO.New result replaces old one(2.573+-0.0193060900300021 ENDBIB 19 0 3060900300022 COMMON 6 3 3060900300023 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3060900300024 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3060900300025 0.19 0.02 0.14 0.37 0.20 0.60 3060900300026 ENDCOMMON 3 0 3060900300027 DATA 2 1 3060900300028 DATA ERR-T 3060900300029 PRT/FIS PRT/FIS 3060900300030 2.5620E+00 2.0000E-02 3060900300031 ENDDATA 3 0 3060900300032 ENDSUBENT 31 0 3060900399999 SUBENT 30609004 20090804 31403060900400001 BIB 5 19 3060900400002 REACTION (96-CM-244(0,F),PR,NU) 3060900400003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900400004 steel backing, 4.2 cm in diameter. Before 3060900400005 electrodeposition, Cm samples were purified by 3060900400006 separation from daughter products. The spont. fission 3060900400007 rates of Cm samples were about 15/min. 3060900400008 CORRECTION The following corrections were applied (in %: 3060900400009 - False gate 0.03 3060900400010 - Dead time 0.67 3060900400011 - Delayed gamma rays -0.75 3060900400012 - Frank effect -0.40 3060900400013 ERR-ANALYS (ERR-S) Statistical error 3060900400014 (ERR-1) Error due to false gate correction 3060900400015 (ERR-2) Error due to dead time correction 3060900400016 (ERR-3) Error due to correction for delayed gammas 3060900400017 (ERR-4) Error due to correction for Frank effect 3060900400018 (ERR-5) Error from efficency determination 3060900400019 (ERR-T) Total error (0.76 %) 3060900400020 HISTORY (19840627A)KO.-New result replaces old one(2.731+-0.0203060900400021 ENDBIB 19 0 3060900400022 COMMON 6 3 3060900400023 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3060900400024 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3060900400025 0.14 0.01 0.12 0.37 0.20 0.60 3060900400026 ENDCOMMON 3 0 3060900400027 DATA 2 1 3060900400028 DATA ERR-T 3060900400029 PRT/FIS PRT/FIS 3060900400030 2.7210E+00 2.1000E-02 3060900400031 ENDDATA 3 0 3060900400032 ENDSUBENT 31 0 3060900499999 SUBENT 30609005 20130625 31603060900500001 BIB 5 14 3060900500002 REACTION (94-PU-240(0,F),PR/NUM,NU) 3060900500003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900500004 steel backing, 4.2 cm in diameter. 3060900500005 Amount of Pu-240 was about 1 mg, spontaneous fission 3060900500006 rate about 20/min. 3060900500007 ADD-RES The obtained distributions of prompt neutron emission 3060900500008 numbers have been fitted with Gaussian curve by 3060900500009 Weighted Least-Square method. 3060900500010 The width of Gaussian distribution is 3060900500011 sigma(nu) = 1.149 +/- 0.047. 3060900500012 ERR-ANALYS (DATA-ERR) No explicit information given. Compare 3060900500013 detailed uncertainties given for P(n) in subentry 2. 3060900500014 HISTORY (20090908C) OS. 3060900500015 (20130625A) On. REACTION: NPART deleted, PR added. 3060900500016 ENDBIB 14 0 3060900500017 NOCOMMON 0 0 3060900500018 DATA 3 9 3060900500019 PART-OUT DATA DATA-ERR 3060900500020 NO-DIM NO-DIM NO-DIM 3060900500021 0. 0.0647 0.0028 3060900500022 1. 0.2342 0.0096 3060900500023 2. 0.3381 0.0135 3060900500024 3. 0.2436 0.0193 3060900500025 4. 0.0989 0.0150 3060900500026 5. 0.0191 0.0074 3060900500027 6. 0.0002 0.0031 3060900500028 7. 0.0016 0.0010 3060900500029 8. -0.0005 0.0007 3060900500030 ENDDATA 11 0 3060900500031 ENDSUBENT 30 0 3060900599999 SUBENT 30609006 20130625 31603060900600001 BIB 5 16 3060900600002 REACTION (96-CM-242(0,F),PR/NUM,NU) 3060900600003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900600004 steel backing, 4.2 cm in diameter. 3060900600005 Before electrodeposition, Cm samples were purified by 3060900600006 separation from daughter products. 3060900600007 The spontaneous fission rates of Cm samples were about 3060900600008 15/min. 3060900600009 ADD-RES The obtained distributions of prompt neutron emission 3060900600010 numbers have been fitted with Gaussian curve by 3060900600011 Weighted Least-Square method. 3060900600012 The width of Gaussian distribution is 3060900600013 sigma(nu) = 1.159 +/- 0.074. 3060900600014 ERR-ANALYS (DATA-ERR) No explicit information given. Compare 3060900600015 detailed uncertainties given for P(n) in subentry 3. 3060900600016 HISTORY (20090908C) OS. 3060900600017 (20130625A) On. REACTION: NPART deleted, PR added. 3060900600018 ENDBIB 16 0 3060900600019 NOCOMMON 0 0 3060900600020 DATA 3 9 3060900600021 PART-OUT DATA DATA-ERR 3060900600022 NO-DIM NO-DIM NO-DIM 3060900600023 0. 0.0229 0.0023 3060900600024 1. 0.1546 0.0064 3060900600025 2. 0.3112 0.0085 3060900600026 3. 0.3180 0.0091 3060900600027 4. 0.1428 0.0077 3060900600028 5. 0.0460 0.0047 3060900600029 6. 0.0024 0.0032 3060900600030 7. 0.0015 0.0010 3060900600031 8. 0.0006 0.0001 3060900600032 ENDDATA 11 0 3060900600033 ENDSUBENT 32 0 3060900699999 SUBENT 30609007 20130625 31603060900700001 BIB 5 16 3060900700002 REACTION (96-CM-244(0,F),PR/NUM,NU) 3060900700003 SAMPLE Sample was electrodeposited on 0.1 mm thick stainless 3060900700004 steel backing, 4.2 cm in diameter. 3060900700005 Before electrodeposition, Cm samples were purified by 3060900700006 separation from daughter products. 3060900700007 The spontaneous fission rates of Cm samples were about 3060900700008 15/min. 3060900700009 ADD-RES The obtained distributions of prompt neutron emission 3060900700010 numbers have been fitted with Gaussian curve by 3060900700011 Weighted Least-Square method. 3060900700012 The width of Gaussian distribution is 3060900700013 sigma(nu) = 1.175 +/- 0.098. 3060900700014 ERR-ANALYS (DATA-ERR) No explicit information given. Compare 3060900700015 detailed uncertainties given for P(n) in subentry 4. 3060900700016 HISTORY (20090908C) OS. 3060900700017 (20130625A) On. REACTION: NPART deleted, PR added. 3060900700018 ENDBIB 16 0 3060900700019 NOCOMMON 0 0 3060900700020 DATA 3 8 3060900700021 PART-OUT DATA DATA-ERR 3060900700022 NO-DIM NO-DIM NO-DIM 3060900700023 0. 0.0138 0.0016 3060900700024 1. 0.1296 0.0059 3060900700025 2. 0.2850 0.0095 3060900700026 3. 0.3359 0.0103 3060900700027 4. 0.1775 0.0061 3060900700028 5. 0.0468 0.0037 3060900700029 6. 0.0103 0.0002 3060900700030 7. 0.0011 0.0001 3060900700031 ENDDATA 10 0 3060900700032 ENDSUBENT 31 0 3060900799999 ENDENTRY 7 0 3060999999999