ENTRY 14550 20210731 14851455000000001
SUBENT 14550001 20210731 14851455000100001
BIB 9 35 1455000100002
TITLE Long-range particles from nuclear fission 1455000100003
AUTHOR (R.A.Nobles) 1455000100004
INSTITUTE (1USALAS) 1455000100005
REFERENCE (J,PR,126,1508,1962) 1455000100006
#doi:10.1103/PhysRev.126.1508 1455000100007
DETECTOR (IOCH,CSICR) The probability of long-range particle 1455000100008
emission measured by four parallel-plate ionization 1455000100009
chambers operating in an argon plus 5% CO2 gas mixture.1455000100010
The energy spectrum of long-range particles measured by1455000100011
CsI crystal scintillation-spectrometer apparatus 1455000100012
consisted of a fission source deposited on a 1455000100013
100-mu-g/cm2 nickel foil symmetrically positioned with 1455000100014
respect to two sets of diametrically opposed 1455000100015
thallium-activated CsI crystals, viewed by 1455000100016
photomultiplier tubes through MgO2-surfaced vacuum 1455000100017
light pipes. Two crystals were 2 cm in diameter and 1455000100018
0.41 mm in thickness, another two crystals were of the 1455000100019
same diameter and 0.076-mm in thickness, used in two 1455000100020
fold coincidence as fission detectors. These fission 1455000100021
detectors were covered with 100-mu-g/cm2 nickel-foil 1455000100022
light shields to prevent 'crosstalk' with the 1455000100023
long-range particle crystals. The energy resolution of 1455000100024
the long-range particle counters was about 11% for 1455000100025
6.1 MeV 252Cf alphas and 6% for 8.78 MeV alphas from 1455000100026
212Po. The fluorescent response of CsI crystals to 1455000100027
alpha particles was determined by the use of alpha 1455000100028
particles both from natural radioactivity and from the 1455000100029
Los Alamos variable-energy cyclotron. 1455000100030
METHOD (COINC) 1455000100031
ANALYSIS Long-range particles, which are known to be 1455000100032
predominantly alpha particles. 1455000100033
ERR-ANALYS (DATA-ERR) No information on sources of uncertainties 1455000100034
HISTORY (20191111C) OG. 1455000100035
(20210610A) OS. Data presentation changed in subentries1455000100036
4 through 13 1455000100037
ENDBIB 35 0 1455000100038
NOCOMMON 0 0 1455000100039
ENDSUBENT 38 0 1455000199999
SUBENT 14550002 20191112 14611455000200001
BIB 4 11 1455000200002
REACTION (98-CF-252(0,F)2-HE-4,TER,FY/DE,,REL) 1455000200003
COMMENT ARB-UNITS correspond counts per energy interval 1455000200004
SAMPLE The Cf252 source was prepared by autodeposition from 1455000200005
an intense parent source. Deposits were made on 1455000200006
100-mu-g/cm2 nickel foil which in some cases was 1455000200007
reinforced by a backing of 20-mesh, 93%- transparent, 1455000200008
'electromesh' nickel screen. Amount of active 1455000200009
material about 10.E-3 mu-g, spontaneous fission 1455000200010
rate - 3.E4 fissions/min. 1455000200011
STATUS (CURVE) Fig.5 from Phys.Rev.,126,1508,1962 digitized by1455000200012
GSYS2.4.7. 1455000200013
ENDBIB 11 0 1455000200014
NOCOMMON 0 0 1455000200015
DATA 3 34 1455000200016
E DATA DATA-ERR 1455000200017
MEV ARB-UNITS ARB-UNITS 1455000200018
7.4704 397.1384 28.5760 1455000200019
8.4542 492.5012 30.4711 1455000200020
9.4018 549.7643 28.5664 1455000200021
10.3136 565.1182 26.6568 1455000200022
11.1792 742.3706 28.5808 1455000200023
12.0108 837.7141 30.4759 1455000200024
12.8442 900.6770 32.3759 1455000200025
13.6405 942.6828 32.3903 1455000200026
14.3977 1007.5407 38.1046 1455000200027
15.1953 1024.7848 36.1998 1455000200028
15.9167 1045.8288 38.0901 1455000200029
16.6728 1131.6389 38.0949 1455000200030
17.3561 1152.6780 43.8092 1455000200031
18.0412 1139.4317 45.7139 1455000200032
18.7364 926.1871 36.1757 1455000200033
19.3797 987.2210 40.0045 1455000200034
20.0684 903.4991 38.1094 1455000200035
20.6863 713.1017 36.1950 1455000200036
21.3385 598.8990 30.4663 1455000200037
21.9508 520.8817 34.2806 1455000200038
22.5255 435.2405 24.7520 1455000200039
23.1415 284.8428 19.0378 1455000200040
23.7527 227.7777 22.8570 1455000200041
24.3235 220.2311 20.9570 1455000200042
24.8967 163.1612 20.9474 1455000200043
25.4692 119.4244 15.2331 1455000200044
25.9660 69.9638 15.2331 1455000200045
26.5372 52.8935 11.4188 1455000200046
27.1085 33.9185 9.5334 1455000200047
27.6411 30.1766 13.3284 1455000200048
28.2119 20.7253 1455000200049
28.4785 11.2353 1455000200050
28.7445 15.0786 1455000200051
29.7332 13.2994 1455000200052
ENDDATA 36 0 1455000200053
ENDSUBENT 52 0 1455000299999
SUBENT 14550003 20191112 14611455000300001
BIB 6 8 1455000300002
REACTION (92-U-235(N,F)2-HE-4,TER,FY/DE,,REL) 1455000300003
COMMENT ARB-UNITS correspond counts per energy interval 1455000300004
FACILITY (REAC,1USALAS) 1455000300005
INC-SOURCE (THCOL) 1455000300006
SAMPLE Method of preparation the 235 U sample - vacuum 1455000300007
evaporation, amount of active material - 0.860 mg. 1455000300008
STATUS (CURVE) Fig.5 from Phys.Rev.,126,1508,1962 digitized by1455000300009
GSYS2.4.7. 1455000300010
ENDBIB 8 0 1455000300011
COMMON 1 3 1455000300012
EN 1455000300013
EV 1455000300014
0.0253 1455000300015
ENDCOMMON 3 0 1455000300016
DATA 3 16 1455000300017
E DATA DATA-ERR 1455000300018
MEV ARB-UNITS ARB-UNITS 1455000300019
6.0506 50.6683 9.5225 1455000300020
7.9558 54.5383 10.9499 1455000300021
9.8555 85.0748 9.9975 1455000300022
11.6047 106.5589 9.5274 1455000300023
13.3106 152.8036 13.3345 1455000300024
14.8699 170.4721 12.3845 1455000300025
16.3575 165.7575 10.9559 1455000300026
17.7267 181.0390 11.9047 1455000300027
19.1044 154.4161 10.9547 1455000300028
20.3714 110.1706 9.9987 1455000300029
21.5965 84.0190 8.0964 1455000300030
22.8225 53.5817 7.1416 1455000300031
24.0081 34.5717 6.1941 1455000300032
25.1938 15.0855 3.8095 1455000300033
26.3009 7.0254 2.3785 1455000300034
27.4070 3.7272 1455000300035
ENDDATA 18 0 1455000300036
ENDSUBENT 35 0 1455000399999
SUBENT 14550004 20210731 14851455000400001
BIB 4 12 1455000400002
REACTION (98-CF-252(0,F)2-HE-4,BIN/TER,FY/RAT) 1455000400003
SAMPLE The Cf252 source was prepared by autodeposition from 1455000400004
an intense parent source. Deposits were made on 1455000400005
100-mu-g/cm2 nickel foil which in some cases was 1455000400006
reinforced by a backing of 20-mesh, 93%- transparent, 1455000400007
'electromesh' nickel screen. Amount of active 1455000400008
material about 10.E-3 mu-g, spontaneous fission 1455000400009
rate - 3.E4 fissions/min. 1455000400010
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000400011
(DEP,14550002) 1455000400012
HISTORY (20210610A) OS. Reaction code and numerical value 1455000400013
restored to presentation in Table II 1455000400014
ENDBIB 12 0 1455000400015
NOCOMMON 0 0 1455000400016
DATA 2 1 1455000400017
DATA DATA-ERR 1455000400018
NO-DIM NO-DIM 1455000400019
299. 18. 1455000400020
ENDDATA 3 0 1455000400021
ENDSUBENT 20 0 1455000499999
SUBENT 14550005 20210731 14851455000500001
BIB 6 10 1455000500002
REACTION (92-U-235(N,F)2-HE-4,BIN/TER,FY/RAT) 1455000500003
FACILITY (REAC,1USALAS) 1455000500004
(VDG,1USALAS) 1455000500005
INC-SOURCE (THCOL,P-T) 1455000500006
SAMPLE Method of preparation the 235 U sample - vacuum 1455000500007
evaporation, amount of active material - 0.860 mg. 1455000500008
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000500009
(DEP,14550003) For En=0.0253 eV 1455000500010
HISTORY (20210610A) OS. Reaction code and numerical value 1455000500011
restored to presentation in Table II 1455000500012
ENDBIB 10 0 1455000500013
NOCOMMON 0 0 1455000500014
DATA 3 2 1455000500015
EN DATA DATA-ERR 1455000500016
EV NO-DIM NO-DIM 1455000500017
0.0253 499. 30. 1455000500018
1.E6 534. 35. 1455000500019
ENDDATA 4 0 1455000500020
ENDSUBENT 19 0 1455000599999
SUBENT 14550006 20210731 14851455000600001
BIB 4 7 1455000600002
REACTION (96-CM-242(0,F)2-HE-4,BIN/TER,FY/RAT) 1455000600003
SAMPLE Method of preparation the 242Cm sample - electrospray, 1455000600004
amount - about 0.06 mu-g, 5.E8 alpha/min, 1455000600005
spontaneous fission rate - 17 fissions/min. 1455000600006
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000600007
HISTORY (20210610A) OS. Reaction code and numerical value 1455000600008
restored to presentation in Table II 1455000600009
ENDBIB 7 0 1455000600010
NOCOMMON 0 0 1455000600011
DATA 2 1 1455000600012
DATA DATA-ERR 1455000600013
NO-DIM NO-DIM 1455000600014
257. 17. 1455000600015
ENDDATA 3 0 1455000600016
ENDSUBENT 15 0 1455000699999
SUBENT 14550007 20210731 14851455000700001
BIB 4 7 1455000700002
REACTION (96-CM-244(0,F)2-HE-4,BIN/TER,FY/RAT) 1455000700003
SAMPLE Method of preparation the 244Cm sample - electrospray, 1455000700004
amount - about 2 mu-g, 5.4E8 alpha/min, spontaneous 1455000700005
fission rate - 390 fissions/min. 1455000700006
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000700007
HISTORY (20210610A) OS. Reaction code and numerical value 1455000700008
restored to presentation in Table II 1455000700009
ENDBIB 7 0 1455000700010
NOCOMMON 0 0 1455000700011
DATA 2 1 1455000700012
DATA DATA-ERR 1455000700013
NO-DIM NO-DIM 1455000700014
314. 20. 1455000700015
ENDDATA 3 0 1455000700016
ENDSUBENT 15 0 1455000799999
SUBENT 14550008 20210731 14851455000800001
BIB 4 7 1455000800002
REACTION (94-PU-240(0,F)2-HE-4,BIN/TER,FY/RAT) 1455000800003
SAMPLE Method of preparation the 240Pu sample - electrospray, 1455000800004
amount of active material - 0.18 mg, spontaneous 1455000800005
fission rate - 5.1 fissions/min. 1455000800006
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000800007
HISTORY (20210610A) OS. Reaction code and numerical value 1455000800008
restored to presentation in Table II 1455000800009
ENDBIB 7 0 1455000800010
NOCOMMON 0 0 1455000800011
DATA 2 1 1455000800012
DATA DATA-ERR 1455000800013
NO-DIM NO-DIM 1455000800014
314. 20. 1455000800015
ENDDATA 3 0 1455000800016
ENDSUBENT 15 0 1455000899999
SUBENT 14550009 20210731 14851455000900001
BIB 6 9 1455000900002
REACTION (94-PU-239(N,F)2-HE-4,BIN/TER,FY/RAT) 1455000900003
FACILITY (REAC,1USALAS) 1455000900004
(VDG,1USALAS) 1455000900005
INC-SOURCE (THCOL,P-T) 1455000900006
SAMPLE Method of preparation the 239Pu sample - vacuum 1455000900007
evaporation, amount of active material - 0.123 mg. 1455000900008
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455000900009
HISTORY (20210610A) OS. Reaction code and numerical value 1455000900010
restored to presentation in Table II 1455000900011
ENDBIB 9 0 1455000900012
NOCOMMON 0 0 1455000900013
DATA 3 2 1455000900014
EN DATA DATA-ERR 1455000900015
EV NO-DIM NO-DIM 1455000900016
0.0253 411. 26. 1455000900017
1.E6 403. 25. 1455000900018
ENDDATA 4 0 1455000900019
ENDSUBENT 18 0 1455000999999
SUBENT 14550010 20210731 14851455001000001
BIB 4 9 1455001000002
REACTION (94-PU-242(0,F)2-HE-4,BIN/TER,FY/RAT) 1455001000003
SAMPLE Method of preparation the sample - electrospray, 1455001000004
amount of active material - 0.29 mg, spontaneous 1455001000005
fission rate - 12.4 fissions/min. 1455001000006
(94-PU-242,ENR=0.885) 1455001000007
(94-PU-241,ENR=0.075) 1455001000008
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455001000009
HISTORY (20210610A) OS. Reaction code and numerical value 1455001000010
restored to presentation in Table II 1455001000011
ENDBIB 9 0 1455001000012
NOCOMMON 0 0 1455001000013
DATA 2 1 1455001000014
DATA DATA-ERR 1455001000015
NO-DIM NO-DIM 1455001000016
365. 29. 1455001000017
ENDDATA 3 0 1455001000018
ENDSUBENT 17 0 1455001099999
SUBENT 14550011 20210731 14851455001100001
BIB 6 11 1455001100002
REACTION (94-PU-241(N,F)2-HE-4,BIN/TER,FY/RAT) 1455001100003
FACILITY (REAC,1USALAS) 1455001100004
INC-SOURCE (THCOL) 1455001100005
SAMPLE Method of preparation the 241Pu sample - electrospray, 1455001100006
amount of active material - 0.29 mg, spontaneous 1455001100007
fission rate - 12.4 fissions/min. 1455001100008
(94-PU-241,ENR=0.075) 1455001100009
(94-PU-242,ENR=0.885) 1455001100010
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455001100011
HISTORY (20210610A) OS. Reaction code and numerical value 1455001100012
restored to presentation in Table II 1455001100013
ENDBIB 11 0 1455001100014
NOCOMMON 0 0 1455001100015
DATA 3 1 1455001100016
EN DATA DATA-ERR 1455001100017
EV NO-DIM NO-DIM 1455001100018
0.0253 440. 28. 1455001100019
ENDDATA 3 0 1455001100020
ENDSUBENT 19 0 1455001199999
SUBENT 14550012 20210731 14851455001200001
BIB 6 8 1455001200002
REACTION (92-U-234(N,F)2-HE-4,BIN/TER,FY/RAT) 1455001200003
FACILITY (VDG,1USALAS) 1455001200004
INC-SOURCE (P-T) 1455001200005
SAMPLE Method of preparation the 234 U sample - brush 1455001200006
painting, amount of active material - 0.890 mg. 1455001200007
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455001200008
HISTORY (20210610A) OS. Reaction code and numerical value 1455001200009
restored to presentation in Table II 1455001200010
ENDBIB 8 0 1455001200011
NOCOMMON 0 0 1455001200012
DATA 3 1 1455001200013
EN DATA DATA-ERR 1455001200014
EV NO-DIM NO-DIM 1455001200015
1.E6 466. 30. 1455001200016
ENDDATA 3 0 1455001200017
ENDSUBENT 16 0 1455001299999
SUBENT 14550013 20210731 14851455001300001
BIB 6 8 1455001300002
REACTION (92-U-233(N,F)2-HE-4,BIN/TER,FY/RAT) 1455001300003
FACILITY (REAC,1USALAS) 1455001300004
INC-SOURCE (THCOL) 1455001300005
SAMPLE Method of preparation the 233 U sample - vacuum 1455001300006
evaporation, amount of active material - 1.0 mg. 1455001300007
STATUS (TABLE) Table II in Phys.Rev.,126,1508,1962. 1455001300008
HISTORY (20210610A) OS. Reaction code and numerical value 1455001300009
restored to presentation in Table II 1455001300010
ENDBIB 8 0 1455001300011
NOCOMMON 0 0 1455001300012
DATA 3 1 1455001300013
EN DATA DATA-ERR 1455001300014
EV NO-DIM NO-DIM 1455001300015
0.0253 414. 26. 1455001300016
ENDDATA 3 0 1455001300017
ENDSUBENT 16 0 1455001399999
ENDENTRY 13 0 1455099999999