Gamatom Radyasyon Ölçüm Sistemleri ve Nükleer Danışmanlık
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Radiation Sources

Low Energy Control Resources for Surface Contamination Monitors
Sodium-22 Gamma Radiation Source

Sodium-22 Gamma Radiation Source

Half-life: 950.57 ± 0.23 days
 
Photon energy:
γ1 511 (annihil.) keV (179.8 ± 0.2%)
γ2 1274.537 ± 0.003 keV (99.940 ± 0.014%)
 
Included in the 22Na ceramic matrix and sealed in a welded stainless steel capsule.
Details
Sn-119m Mössbauer Source

Sn-119m Mössbauer Source

Half-life: 293.1 ± 0.7 days
 
Photon energy:
 
Sn XKα2
 
25.044 keV (7.98 ± 0.24%)
 
Sn XKα1
 
25.271 keV (14.8 ± 0.4%)
 
Sn XKβ3
 
28.444 keV (1.34 ± 0.04%)
 
Sn XKβ1
 
28.486 keV (2.58 ± 0.08%)
 
Sn XKβ2
 
29.111 keV (0.707 ± 0.021%)
 
γ1 23.875 ± 0.010 keV (16.50 ± 0.20%)
 
γ2 65.66 ± 0.01 keV (0.0200 ± 0.0003%)
 
Sources of 119mSn are prepared on the basis of CaSnO3 matrix, where 119mSn radionuclide is synthesized to high specific activity (> 300 mCi / g). The active part of the soldered beryllium window is placed inside the titanium capsule and sealed by laser welding.
Details
Cesium-137 Gamma Radiation Source

Cesium-137 Gamma Radiation Source

Half-life: 10990 ± 40 days
 
Photon energy:
 
Ba XK α2 31,8174 keV (1.95 ± 0.04%)
 
Ba XK α1 32,1939 keV (3.59 ± 0.07%)
 
Ba XK β2 36.31-36.67 keV (1.055 ± 0.022%)
 
Ba XK β1 37.26-37.43 keV (0.266 ± 0.008,%)
 
1 661,657 ± 0.003 keV (84.99 ± 0.20%)
 
 
Included in the 137Cs ceramic matrix and sealed in a welded stainless steel capsule.
Details
Radionuclides - Radionuclide Solutions

Radionuclides - Radionuclide Solutions

radyonüklid 

Nominal 
etkinlik

Spesifik aktivitesi 
radyonüklit önce çözülür 
Ci / g, en az

kimyasal formu

En az 
radyoizotop 
saflığı%

uCi

kBq

Co-57

0,027-27,027

1-1000

6000

0.5 M HCl Co (II)

99.8

Ni-63

2,703-270,270

100-10 4

10

0.5 M HCI, Ni (II)

99.999

Sr-85

0,027-27,027

1-1000

2000

0.5-3.0 M HCI veya HNO Sr (II) 3

99.8

Y-88

0,027-27,027

1-1000

10

Y, (III), 1.0 M HCI

% 97.0 ( 87 Y <% 3)

Sr-90 + Y-90

0,027-0,270

1-10

50

Sr (II), 0.5 M HCI ve HNO 3

99.9

Cd-109

0,027-27,027

1-1000

3.5

Cd (II), 1.0 M HCI ve HNO 3

99.999

I-124

(1-20) · 10 3

(3,7-74) · 10 4

252000

Nal 0.02 M NaOH içinde

99.5

Ba-133

0,027-2,703

1-100

7

0.1-0.5 M HCI Ba (II)

99.9

Ce-139

0,027-27,027

1-1000

25

Ce (III) 1.0 M HNO 3

99.8

 

Details