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).

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Part # Se-75 Category Radiography Tags inspections, Radiography, NDT

Description

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.

Features

Transporting Isotopes

QSA Global, Inc. distributes radioisotope sources worldwide by utilizing the industry’s largest fleet of source changers. Source changers are available to deliver a single source up to ten sources in a container for device reloads at your facility or at one of QSA Global, Inc.’s authorized service centers.

Loading & Unloading

QSA Global, Inc. offers a variety of options for SENTINEL Se-75 source changes to minimize downtime of your assets. QSA Global, Inc. and our authorized distributors can reload your SENTINEL Se-75 device at local facilities around the world by trained technicians or sources can be delivered directly to your facility for reload by your trained technicians.

Isotope Disposition

Radioactive materials that are no longer required must be transferred to a licensed recipient for final disposition. QSA Global, Inc. provides a one for one exchange on SENTINEL Se-75 radioisotope sources.

Specifications

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)

Sentinel Selenium-75 Industrial Radioisotopes