a4 selenium brochure low res
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8/16/2019 A4 Selenium Brochure Low Res
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NTP Radioisotopes (Europe) S.A.
Selenium-75Radiography Sources
Industrial Applications of Selenium-75 Sealed Sources
Description
Selenium-75 (Se-75) in gamma radiography is now becoming the nuclide ofchoice for non-destructive testing (NDT) applications because of its softeremission spectrum and lower energy gamma ray, which makes it ideal whenhigh quality images in the 5mm to 30mm (0.2” to 1.18”) range are required.
Compared to other isotopes used for the same application Se-75 has asignificantly longer half-life of 119.8 days that reduces decay loss. This isbeneficial when transported for use in remote zones and offshoreapplications. It also is successful in replacing X-ray apparatus in some pipelinecrawler applications.
Ÿ NTP Europe Se-75 sources are available in various dimensions and typesof capsules to fit most of gamma radiography devices
Ÿ They are double encapsulated. The inner capsule is made of vanadium,with a stainless steel outer capsule
Specialisingin the productionand supply of radiography sources
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Actively in your world
NTP Radioisotopes (Europe) S.A.
Avenue de l'Espérance 16220 Fleurus,Belgium
Meeting Customer Needs
Air Kerma Rate at 1 meter
Delivery Time
Specifications
NTP Europe offers customers a reliable andsustainable supply of excellent sources, stronglysupported by the proven competence of our parentcompany, NTP Radioisotopes, which is based in SouthAfrica. Our manufacturing process provides us with
the versatility to make custom sources fitting most of the Se-75 equipments currently available on themarket.
Ÿ 1.95 mGy/h for 37 GBqŸ 0.224 R/h for 1.0 Ci
Ÿ 2 to 3 weeks for 3 x 3 mm and 2.5 x 2.5 mmŸ 12 to 16 weeks for other dimensions dependent
on reactor schedule
Ÿ Source: elemental Se-74 or Vanadium SelenideŸ Capsule:
ú Inner capsule Vanadiumú Outer capsule stainless steel AISI 316
Ÿ Half-life: 119.78 days
Types MaterialCertificate
Material
Special Form
ISO CodeActivity
Se-75 Capsules
SR-17,SR-18
and GS75M5,180 Gbq 140 Ci RUS/6223/
S-96
C63545(fire tested
to 1200°C)
Stainlesssteel
Focal Spot Sizes
ActiveDiameter (mm)
1.0
1.5
2.0
2.5
3.5
3.0
ActiveHeight (mm)
185
370
1,295
2,220
3,330
4,440
5
10
35
60
90
120
Gbq CiEquivalent Activity (±10%)
1.0
1.5
2.0
2.5
3.5
3.0
Gamma Spectrum
Selenium-75(Se-75)
Gamma -Ranging from66 - 401 keV
17.4
59.4
59.5
25.3
121
136
265
280
Major Yield (%) Energy (keV)
+32 71 82 3570 or +32 71 82 3571+32 71 82 [email protected]
www.ntp-europe.eu