7 241Am (432 yr.) 12-13-1999 none 20cm 1 A1121399001 2 α β α 6 Np L 1 β · 2004. 3. 8. · 1...
13
Table of Contents Page -1- Channel Number 0 50 100 150 200 250 300 350 400 450 500 Counts/Channel 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 59 Np K α2 69 241 Am (432 yr.) 12-13-1999 HPGe: 50.5mm dia. X 20.5mm none 20cm A1121399001 Ge Escape Peaks (L β ) { Np L l Np L β1 Np L γ1 26 31 33 43 Ge Escape Peak { sum(L α1 +59) sum(L β1 +59) sum(L γ1 +59) 86( 237 Np) Ge Escape Peak (Lp γ1 ) Np L n Np L β(2,15) Np L α2 Np L γ6 Np L α1
Transcript of 7 241Am (432 yr.) 12-13-1999 none 20cm 1 A1121399001 2 α β α 6 Np L 1 β · 2004. 3. 8. · 1...
Table of Contents
Page -1-
Channel Number
0 50 100 150 200 250 300 350 400 450 500
Co
un
ts/C
han
nel
100
101
102
103
104
105
106
107
59
Np
Kα2
69
241Am (432 yr.)12-13-1999
HPGe: 50.5mm dia. X 20.5mm none20cm
A1121399001
Ge
Esc
ape
Pea
ks (
Lβ)
{
Np
Ll
Np
Lβ1
Np
Lγ1
26
31
33 43
Ge
Esc
ape
Pea
k
{
sum
(Lα1
+59)
sum
(Lβ1
+59)
sum
(Lγ1
+59)
86(23
7 Np
)
Ge
Esc
ape
Pea
k (L
pγ1
)
Np
Ln
Np
Lβ(
2,15
)Np
Lα2
Np
Lγ6
Np
Lα1
Table of Contents
Page -2-
Channel Number
0 100 200 300 400 500 600 700 800 900 1000
Co
un
ts/C
ha
nn
el
101
102
103
104
105
106
107
108
109
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
241Am (432 yr.)source age: 23(2) yr. (ca)7-6-1999 thru 7-14-1999
HPGe: 50.5mm dia. X 20.5mm 0.3 cm SS
20cmS1070699001
low energy portion
X-rays
59
69
86(23
7 Np
)
Np
Kα2
98 102
sum
(59
+ 5
9)/N
p K
β2)
123
125
146
139 15
0
sum
(59
+ 98
)su
m(5
9 +
102)
164
165
169
175
bkg 19
1
197
208
221/
221
232
bkg
bkg
246
264/
264
267
270 27
5
292
bkg
300/
300(
233 P
a) 312(233Pa)
322/
322
332
335
337
340/
340(
233 P
a)
bkg
368
370
376
383
x10
Np
Kβ3
Np
Kβ1
291
Np
Kα1
Table of Contents
Page -3-
Channel Number
2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000
Co
un
ts/C
ha
nn
el
100
101
102
103
104
4000 4200 4400 4600 4800 5000 5200 5400 5600 5800 6000
241Am (432 yr.)source age: 23(2) yr. (ca)7-6-1999 thru 7-14-1999
HPGe: 50.5mm dia. X 20.5mm 0.3 cm SS
20cmS1070699001
high energy portion
398/
398(
233 P
a)39
0
419
426
454/
454
ann
. rad
.
bkg
582/
bkg
597
590/
590 b
kg
bkg
619
641
653
669
662
722/722
688
737
755
767
770
693
801 84
7/b
kg
x10
415/
415(
233 P
a)
512/
514
696/
696
Table of Contents
Page -4-
Channel Number
0 100 200 300 400 500 600 700 800 900 1000
Co
un
ts/C
han
nel
100
101
102
103
104
105
106 241Am(432 yr.)8-21-1970
Si(Li) 30mm2 X 3mmunknown absorber
1.75 cm95-241-1
Np Mx-rays
Ll
Lα
Lα
Lβ
In &
Sn
K x
-ray
s fr
om
fl u
ore
scen
ce o
f d
etec
tor
con
tact
{
{{
2659
32/3
3
42/4
3
Table of Contents
Page -5-
Channel Number
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
Co
un
ts/C
ha
nn
el
10-1
100
101
102
103
104
105
106
107
1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000
241Am(432 yr.)7-16-1970
Ge(Li) 2.5 cm2 x 8 mm1 g/cm2 Poly + 1.32 g/cm2 Cd
1.5 cm95-241-2
125
208
322
335
368
662
722
59
98 102
139
146
164
169
175
191
221
232
246 26
727
5
291/
292
300
383
389/
390
419
426
454
459
590 59
7
619
641
653
680
688
696
709
737
755
786x10
123
109
150
NP Kα2
NP Kα1
Am Kα1
NP Kβ3
NP Kβ2
NP Kβ1
201
332376
370
340
415
767
770
249 26
4
Table of Contents
Page -6-
241Am Decay Chain
<0.10%-
decay�
0.012%-
decay�
97.91%-
decay�
>99.90% decay�
99.998% decay�
2.09% decay�
�-
decay
�-
decay �-
decay
�-
decay
� decay
� decay
� decay
� decay
� decay
� decay
� decay
� decay
4.3x10 % SF-10
Am241
(432.2 yr.)
Ra221
(28 sec.)
Rn217
(0.54 msec.)
Po213
(4.2 sec.)�
Np237
(2.144 x 10 yr.)6
Pa233
(26.967 day)
U233
(1.592 x 10 yr.)5
Th229
(7880 yr.)
Ra225
(14.9 day)
Ac225
(10.0 day)
Ac225
(10.0 day)
Fr221
(4.9 min.)
At217
(32.3 msec.)
Bi213
(4.59 min.)
Tl209
(2.20 min.)
Pb209
(3.253 hr.)
Bi209
(stable)
Table of Contents
Page -7-
8.6x10-57/2- 756.00
5/2- 721.95 0.0007
861.7
11/2-
0.05/2+ 0.34
7/2+ 33.1964 0.22 �� 4 ns)
5/2- 59.5412 84.5 (67 ns)
Am24195
Np23793
2.144x10 yr.6
770.57
(7/2+,9/2+) 805.8
853.36
920.9
45
4.6
6
563.0
5
61
9.0
1
66
2.4
0
68
8.7
2
72
2.0
1
59
7.4
8
65
3.0
2
68
0.1
0
69
6.6
0
72
2.0
1
75
5.9
0
446.4
3
73
7.3
4
77
0.5
7
78.1
573.9
4
64
1.4
7
66
9.8
3
69
6.6
0
76
7.0
0
676.0
3
729.7
2
772.4
806.2
6
529.1
7
627.1
8
786.0
0
80
1.9
4
828.5
862.7
860.7
887.3
92
1.5
9/2- 800.00 0.00004
11/2- 225.96 0.015
3/2- 267.54 0.0005
(7/2-) 324.42 0.0013
9/2+ 75.92 <0.04
7/2- 102.96 13.0
11/2+ 130.00 �0.01
9/2- 158.51 1.6
5/2- 0.0
432.2 yr.
Q =5637.81� 100% decay�
Based on 9/1/1999 NNDC/BNL Data
241Am (432.2 yr.) Decay SchemePart 1 of 4
Table of Contents
Page -8-
0.0
Am24195
2.144x10 yr.6
5/2- 0.0
432.2 yr.
100% decay�
135.3
38
3.8
1
42
6.4
7
459.6
8
161.5
4
260.8
0
19
1.9
6
154.2
7
23
2.8
1
24
6.7
3
45
4.6
6
514.0
31
.4
26
4.8
9
278.0
4
512.5
545.4
32
2.5
2
487.3
59
0.2
8
13
9.4
4
159.2
6
19
7.0
401.3
463.2
2
138.5
406.3
5
468.1
2
522.0
6
487.3
586.5
9
39
8.6
4
59
0.2
8
632.9
3
666.5
0.34
84.5 (67 ns)
<0.04
13.0
�0.01
1.6
0.015
0.0005
0.0024
0.0013
0.0006
0.0007
0.0004
�0.0004
�0.0004
0.00014
0.0001
5/2+
7/2+
5/2-
9/2+
7/2-
11/2+
9/2-
13/2+
11/2-
3/2-
1/2-
13/2-
(7/2-)
(5/2-)
15/2-
(11/2-)
9/2+
7/2+
(9/2-)
17/2-
(3/2-)
(5/2-)
(7/2-)
13/2+
11/2+
(9/2-)
(5/2+,7/2-)
33.1964
59.5412
75.92
102.96
130.00
158.51
191.46
225.96
267.54
281.35
305.06
324.42
359.7
395.52
434.12
452.53
459.69
485.96
497.02
514.19
545.59
590.28
592.3
598.0
646.1
666.2
Np23793
Q =5637.81�
0.22 �� 4 ns)
Based on 9/1/1999 NNDC/BNL Data
241Am (432.2 yr.) Decay SchemePart 2 of 4
Table of Contents
Page -9-
79.1
0.0
Am24195
2.144x10 yr.6
5/2- 0.0
432.2 yr.
100% decay�
0.345/2+
Np23793
Q =5637.81�
7/2+
5/2-
9/2+
7/2-
11/2+
9/2-
13/2+
11/2-
3/2-
1/2-
13/2-
(7/2-)
1/2+
(5/2-)
5/2+
3/2+
15/2-
(11/2-)
9/2+
0.22 ( 4 ns)�
84.5 (67 ns)
<0.04
13.0
�0.01
1.6
0.015
0.0005
0.0024
0.0013
0.0006
0.0009
0.0003
0.0007
0.0004
�0.0004
14
6.5
5
17
5.0
7
316.8
56.8
16
5.8
1
22
1.4
6
249.0
0
26
4.8
9
29
1.3
0
51.0
1
64.8
3
33
2.3
5
92.1
30
0.1
329
2.7
7
309.1
33
5.3
7
36
8.6
5
38.5
4
33
7.7
37
0.9
4
16
9.5
6
204.0
6
10
9.7
0
129.2
27
5.7
7
304.2
1
358.2
5
120.3
6
260.8
0
32
2.5
2
37
6.6
5
41
9.3
3
452.6
33.1964
59.5412
75.92
102.96
130.00
158.51
191.46
225.96
267.54
281.35
305.06
316.8
324.42
332.36
359.7
368.59
370.93
395.52
434.12
444.78
452.53
Based on 9/1/1999 NNDC/BNL Data
241Am (432.2 yr.) Decay SchemePart 3 of 4
Table of Contents
Page -10-
0.0
Am24195
2.144x10 yr.6
5/2- 0.0
432.2 yr.
100% decay�
0.345/2+
Np23793
Q =5637.81�
7/2+
5/2-
9/2+
7/2-
11/2+
9/2-
13/2+
11/2-
3/2-
1/2-
<0.04
13.0
1.6
0.015
0.0005
33.1964
59.5412
75.92
102.96
130.00
158.51
191.46
225.96
267.54
281.35
33.1
9626.3
448
59.5
412
42
.73
75
.8
27
.03
43.4
23
69.7
6
102.9
8
54
.0
96
.7
55
.56
98.9
7
125.3
0
61.4
6
11
5.5
4
67
.45
123.0
1
150.0
4
164.6
9
208.0
1
23
4.3
3
267.5
8
13
.81
221.8
0
�0.01
84.5 (67 ns)
0.22 �� 4 ns)
Based on 9/1/1999 NNDC/BNL Data
241Am (432.2 yr.) Decay SchemePart 4 of 4
Table of Contents
Page -11-
GAMMA-RAY ENERGIES AND INTENSITIES (page 1 of 3)
Nuclide: 241Am Eγ, σEγ, Iγ, σIγ, Levels- from ENSDF Database as of September 1, 1999 Half Life: 432.2(7) yr.
Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level
� These Iγ are per 100 Decays of 241
Am.
� For total uncertainty add systematic component of 1% in quadrature, based on the normalization factor 1.00x10-5
(1)
13.81 0.02 281.35 α 26.344 8 0.000 2 2.40 0.02 59.541 2 αααα 27.03 102.96 α 31.4 545.59 α 32.183 0.017 4 0.000 4 α 33.196 0.001 0.126 0.003 33.196 4 αααα 38.54 0.03 370.93 α 42.73 0.05 0.005 5 0.001 1 75.92 α 43.423 0.010 0.073 0.008 102.96 α 51.01 0.03 0.000 026 0.000 012 332.36 α 54.0 130 α 55.56 0.02 0.018 1 0.001 8 158.51 α 56.8 324.42 α 57.85 0.05 0.005 2 0.001 5 α 59.541 2 0.000 1 35.9 0.4 59.541 2 αααα 61.46 191.46 α 64.83 0.02 0.000 145 0.000 018 332.36 α 67.45 0.05 0.000 42 0.000 10 225.96 α 69.76 0.03 0.002 90 0.000 40 102.96 α 75.8 0.2 0.000 59 ≈ 75.92 α 78.1 800 α 79.1 305.06 α 92.1 359.7 α 96.7 0.2 130 α 98.97 0.02 0.020 3 0.000 4 158.51 α 102.98 0.02 0.019 5 0.000 4 102.96 α 106.42 0.05 0.000 015 α 109.70 0.07 0.000 004 9 434.12 α 115.54 191.46 α 120.36 0.08 0.000 004 5 444.78 α 123.01 0.02 0.001 00 0.000 03 225.96 α 125.30 0.02 0.004 08 0.000 09 158.51 αααα 128.05 α 129.2 434.12 α 135.3 459.69 α 136.7 α
138.5 598 α 139.44 0.08 0.000 005 3 0.000 001 1 592.3 α 146.55 0.03 0.000 461 0.000 011 305.06 αααα 150.04 0.03 0.000 074 0 0.000 002 1 225.96 α 154.27 0.20 0.000 000 54 514.19 α 156.4 0.3 α 159.26 0.20 0.000 001 4 0.000 000 5 592.3 α 161.54 0.10 0.000 001 5 485.96 α 164.69 0.04 0.000 066 7 0.000 002 4 267.54 α 165.81 0.06 0.000 023 2 0.000 001 1 324.42 α 169.56 0.03 0.000 173 0.000 004 395.52 α 175.07 0.04 0.000 018 2 0.000 001 0 305.06 α 190.40 0.000 002 2 0.000 000 5 α 191.96 0.04 0.000 021 6 0.000 001 0 497.02 α 197.0 0.2 0.000 000 49 592.3 α 201.70 0.14 0.000 000 8 α 204.06 0.06 0.000 002 90 0.000 000 19 395.52 α 208.01 0.03 0.000 791 0.000 017 267.54 αααα 221.46 0.03 0.000 042 4 0.000 001 0 324.42 α 221.80 0.04 281.35 α 232.81 0.05 0.000 004 64 0.000 000 30 514.19 α 234.33 0.000 000 66 0.000 000 27 267.54 α 246.73 0.10 0.000 002 42 0.000 000 25 514.19 α 249.00 0.15 0.000 000 54 324.42 α 260.80 0.15 452.53 α 260.80 0.15
0.000 001 21 0.000 000 19 485.96 α
264.89 0.06 324.42 α 264.89 0.06
0.000 009 0 0.000 000 4 545.59 α
267.58 0.05 0.000 026 3 0.000 000 8 267.54 α 270.63 0.15 0.000 000 64 0.000 000 20 α 275.77 0.08 0.000 006 6 0.000 000 4 434.12 α 278.04 0.15 0.000 000 44 545.59 α 291.30 0.20 0.000 003 1 0.000 000 3 324.42 α 292.77 0.06 0.000 014 2 0.000 000 5 368.59 α 300.13 0.06 359.7 α 304.21 0.20 0.000 001 01 0.000 000 21 434.12 α
Table of Contents
Page -12-
GAMMA-RAY ENERGIES AND INTENSITIES (page 2 of 3)
Nuclide: 241Am Eγ, σEγ, Iγ, σIγ, Levels- from ENSDF Database as of September 1, 1999 Half Life: 432.2(7) yr.
Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level
� These Iγ are per 100 Decays of 241
Am.
� For total uncertainty add systematic component of 1% in quadrature, based on the normalization factor 1.00x10-5
(1)
309.1 0.3 0.000 001 4 368.59 α 316.8 0.2 0.000 000 05 ≤ 316.8 α 322.52 0.03 452.53 α 322.52 0.03
0.000 151 8 0.000 003 2 590.28 α
332.35 0.03 0.000 149 0.000 003 332.36 α 335.37 0.03 0.000 496 0.000 010 368.59 αααα 337.7 0.2 0.000 004 29 0.000 000 23 370.93 α 340.56 0.08 0.000 004 3 α 358.25 0.20 0.000 001 20 0.000 000 24 434.12 α 368.65 0.03 0.000 217 0.000 005 368.59 αααα 370.94 0.03 0.000 052 3 0.000 001 2 370.93 α 376.65 0.03 0.000 138 3 0.000 003 0 452.53 α 383.81 0.03 0.000 028 2 0.000 000 7 459.69 α 389.0 0.3 0.000 000 49 α 390.62 0.10 0.000 005 90 0.000 000 27 α 398.64 0.15 0.000 002 0 666.2 α 401.3 3.0 0.000 000 49 592.3 α 406.35 0.15 0.000 001 45 0.000 000 22 598 α 415.88 0.10 0.000 003 1 α 419.33 0.04 0.000 028 7 0.000 000 8 452.53 α 426.47 0.04 0.000 024 6 0.000 000 7 459.69 α 429.94 0.10 0.000 001 15 0.000 000 23 α 442.81 0.07 0.000 003 5 0.000 000 3 α 446.43 0.15 0.000 000 49 770.57 α 452.6 0.2 0.000 002 40 0.000 000 25 452.53 α 454.66 0.08 721.95 α 454.66 0.08
0.000 009 7 0.000 000 4 514.19 α
459.68 0.10 0.000 003 63 0.000 000 27 459.69 α 463.22 0.20 0.000 001 592.3 α 468.12 0.15 0.000 002 88 0.000 000 21 598 α 485.91 0.20 0.000 001 0 0.000 000 3 α 487.3 0.3 590.28 α 487.3 0.3
0.000 000 44 646.1 α
512.5 0.3 0.000 001 15 0.000 000 23 545.59 α 514.0 0.5 0.000 002 58 0.000 000 27 514.19 α 522.06 0.15 0.000 000 95 0.000 000 29 598 α
529.17 0.20 0.000 000 46 853.36 α 545.4 0.3 0.000 000 74 545.59 α 563.05 0.30 0.000 000 74 721.95 α 573.94 0.20 0.000 001 25 0.000 000 19 800 α 582.6 0.000 000 23 0.000 000 12 α 586.59 0.20 0.000 001 31 0.000 000 20 646.1 α 590.28 0.15 590.28 α 590.28 0.15
0.000 002 86 0.000 000 21
666.2 α 597.48 0.08 0.000 007 41 0.000 000 33 756 α 619.01 0.02 0.000 059 4 0.000 000 6 721.95 α 627.18 0.20 0.000 000 56 0.000 000 17 853.36 α 632.93 0.15 0.000 001 26 0.000 000 19 666.2 α 641.47 0.05 0.000 007 1 0.000 000 3 800 α 653.02 0.04 0.000 037 7 0.000 001 1 756 α 662.40 0.02 0.000 364 0.000 008 721.95 αααα 666.5 0.3 0.000 000 49 666.2 α 669.83 0.20 0.000 000 38 0.000 000 12 800 α 676.03 0.30 0.000 000 64 0.000 000 13 805.8 α 680.10 0.10 0.000 003 13 0.000 000 17 756 α 688.72 0.04 0.000 032 5 0.000 000 8 721.95 α 693.62 0.08 0.000 003 68 0.000 000 17 α 696.60 0.05 756 α 696.60 0.05
0.000 005 34 0.000 000 20 800 α
709.45 0.05 0.000 006 41 0.000 000 18 α 722.01 0.03 721.95 αααα 722.01 0.03
0.000 196 0.000 004 756 αααα
729.72 0.15 0.000 001 33 0.000 000 14 805.8 α 731.5 0.000 000 47 0.000 000 15 α 737.34 0.05 0.000 008 00 0.000 000 24 770.57 α 742.9 0.3 0.000 000 35 α 755.90 0.05 0.000 007 60 0.000 000 28 756 α 759.38 0.10 0.000 001 67 0.000 000 09 α 763.9 0.3 0.000 000 20 0.000 000 06 α 767.00 0.10 0.000 005 00 0.000 000 18 800 α 770.57 0.10 0.000 004 74 0.000 000 21 770.57 α 772.4 0.3 0.000 002 66 0.000 000 15 805.8 α
Table of Contents
Page -13-
GAMMA-RAY ENERGIES AND INTENSITIES (page 3 of 3)
Nuclide: 241Am Eγ, σEγ, Iγ, σIγ, Levels- from ENSDF Database as of September 1, 1999 Half Life: 432.2(7) yr.
Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level Eγ (keV) σ Eγ
����Iγ
����σ Iγ Level
� These Iγ are per 100 Decays of 241
Am.
� For total uncertainty add systematic component of 1% in quadrature, based on the normalization factor 1.00x10-5
(1)
777.2 0.000 000 061 0.000 000 031 α 780.7 0.2 0.000 000 25 0.000 000 05 α 782.2 0.5 0.000 000 15 α 786.00 0.15 0.000 000 62 861.7 α 789.17 0.25 0.000 000 39 0.000 000 06 α 794.92 0.20 0.000 000 94 α 801.94 0.20 0.000 001 36 0.000 000 14 861.7 α 806.26 0.30 0.000 000 31 805.8 α 812.01 0.30 0.000 000 61 0.000 000 08 α 819.0 1.0 0.000 000 40 0.000 000 06 α 819.0 1.0 0.000 000 40 0.000 000 06 α 822.6 0.000 000 22 0.000 000 06 α 822.6 0.000 000 22 0.000 000 06 α 828.5 0.000 000 24 0.000 000 06 861.7 α 835.6 1.0 0.000 000 21 α 841.5 1.0 0.000 000 04 0.000 000 01 α
847.4 0.5 0.000 000 27 0.000 000 03 α 851.6 1.0 0.000 000 38 0.000 000 06 α 854.7 0.000 000 20 0.000 000 04 α 860.7 0.5 0.000 000 082 0.000 000 025 920.9 α 862.7 0.5 0.000 000 53 0.000 000 06 861.7 α 870.7 0.3 0.000 000 46 α 887.3 0.3 0.000 000 22 0.000 000 05 920.9 α 898.4 0.000 000 072 0.000 000 029 α 902.5 0.000 000 30 0.000 000 05 α 912.4 0.000 000 25 0.000 000 05 α 921.5 0.3 0.000 000 19 0.000 000 04 920.9 α 928.8 0.000 000 055 0.000 000 028 α 945.7 0.000 000 056 0.000 000 028 α 955.7 0.000 000 58 0.000 000 06 α
1,014.7 0.5 0.000 000 064 0.000 000 010 α
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