Sentinel Selenium-75 Industrial Radioisotopes
Only by Request
Our SENTINEL Se-75 radioisotope sources are available in maximum focal sizes ranging from 1.4 mm to 3.5 mm and nominal activities up to 100 Ci. (3.7 TBq).
Radioisotope sources contain a quasi-spherical metallic pellet for the smallest possible focal dimension which minimizes Source-Film-Distance (SFD) and heightens sensitivity on fixed geometries.
Safety is our top priority. QSA Global, Inc. radioisotope sources are made of a patented vanadium-selenium metal alloy producing the highest possible thermal stability combined with physical strength and durability compared to commonly used elemental Se-75.
Our SENTINEL Se-75 radioisotope sources are available in maximum focal sizes ranging from 1.4 mm to 3.5 mm and nominal activities up to 100 Ci. (3.7 TBq).
SENTINEL Se-75 is designated for use within the steel thickness range of 0.20 in-1.57 in (5 mm-40 mm) per ISO 5579:2013.
| Gamma Energy Range | 66-401 keV |
| Steel Thickness | 0.20 in-1.57 in (5 mm-40 mm) |
| Aluminum / Titanium | 1.4 in-4.7 in (35 mm-120 mm) |
| Selenium-75 Half-Life | 120 days |
| Special Form Certifications | USA/0502/S-96, USA/0335/S-96 |
| Material | Approximate Material Density | Approximate Half-Value Thickness |
|---|---|---|
| Aluminum | 2.65 g/cm3 | 1.100 in (27.0 mm) |
| Steel | 7.80 g/cm3 | 0.315 in (8.0 mm) |
| Lead | 11.34 g/cm3 | 0.039 in (1.0 mm) |
| Tungsten | 17.80 g/cm3 | 0.032 in (0.8 mm) |
SENTINEL Se-75 Gamma-Ray Source Projectors
Small, light-weight SENTINEL Se-75 exposure devices can be used in difficult to access locations that x-ray generators cannot go due to their size, weight, and power requirements.
SENTINEL Se-75 is the preferred isotope for our SCAR exposure devices to enable the safety exclusion zone at worksites to be minimized during radiographic exposures in congested areas.
QSA Global, Inc.’s SENTINEL Se-75 radioisotope sources are also designed for use in our 880 Series projectors for traditional radiography.
| System | Assembly Number | Special Form Certificate | Max Capacity |
|---|---|---|---|
| SENTINEL 1075 SCARPro | A425-6 | View Certificate | 81 Ci (3.00 TBq) |
| SENTINEL 880 Series Delta | A424-25W | View Certificate | 150 Ci (5.55 TBq) |
| SENTINEL 880 Series Elite | A424-25W | View Certificate | 150 Ci (5.55 TBq) |
| SENTINEL 880 Series Omega | A424-25W | View Certificate | 80 Ci (3.00 TBq) |
| SENTINEL 959M SCAR | X540/1 | View Certificate | 81 Ci (3 TBq) |
| SENTINEL 989 SCAR | X540/1 | View Certificate | 20 Ci (740 GBq) |
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