GAMMA RADIOGRAPHY

Gamma Radiography

Turgen are the UAE’s Authorized Distributor and Service Centre for all QSA Global, Inc. NDT Products, including the popular Sentinel™ range of products.

QSA Global, Inc.’s technical experts are multi-disciplined, allowing them to advise on radiography methods and techniques, how to use the devices safely and productively for a particular application, and provide regulatory support to keep customers out of trouble. We provide full-spectrum training to get operators up and running and keep them running in any condition around the world.

QSA Global, Inc. is the original equipment manufacturer of every part that is used in creating our devices. We invest in quality parts and pair it with our technical expertise to ensure everything pieces together perfectly creating high-quality, safe, reliable devices.

Products

SENTINEL™ 880 Series Gamma-Ray Source Projectors

Experience extreme durability, simple operation, and low operator dose.

With over 12,000 in service worldwide from Alaska’s North Slope to harsh Middle East desert environments, the SENTINEL 880 Series has nearly two decades of proven reliability and durability giving you the most uptime from your equipment and maximum production for your clients.

The versatility in using Ir-192, Se-75, and Yb-169 radioisotope sources maximizes the non-destructive testing applications where you can utilize your SENTINEL 880 Series projector while advanced safety features minimize operator dose.

Designed for Safety & Productivity :

Easy to Operate

Easily and reliably connect your SENTINEL Guide Tube and Remote Controls.

Minimize Operator Dose

A patented guide tube interlock ensures the tungsten shutter shields the operator while connecting the source guide tube.

Secure Source

The robust lock slide and remote controls interface ensure the source is secured.

Extreme Durability

In harsh and sometimes remote industrial environments, gamma radiography is valued for its simplicity and reliability. The SENTINEL™ 880 Series gamma-ray source projectors consistently deliver in any condition.

Compare SENTINEL 880 Series Gamma-Ray Source Projectors

SENTINEL 880 Series Delta		SENTINEL 880 Series Elite		SENTINEL 880 Series Omega
The most preferred gamma-ray source projector on the market.		Ideal for use with low-energy isotopes and lower Ir-192 activity.		Best suited for offshore applications and countries with strict regulations.
Ir-192	150 Ci (5.55 TBq)	Ir-192	50 Ci (1.85 TBq)	Ir-192	15 Ci (0.55 TBq)
Se-75	150 Ci (5.55 TBq)	Se-75	150 Ci (5.55 TBq)	Se-75	80 Ci (3.00 TBq)
Yb-169	108 Ci (4.00 TBq)	Yb-169	108 Ci (4.00 TBq)	Yb-169	108 Ci (4.00 TBq)
Weight	52 lb (23.6 kg)	Weight	42 lb (19 kg)	Weight	33 lb (15 kg)
Transport	Type B(U) package	Transport	Type B(U) package	Transport	Type A package

SENTINEL™ 880 Series : “SENTINEL™ 880 Series Gamma-Ray Source Projectors are a trademark of QSA Global, Inc.”

SENTINEL™ 1075 SCARPro

Experience 24/7 SCAR Productivity.

Perform Small Controlled Area Radiography (SCAR) radiographic inspections in close proximity to other trades, nucleonic process control equipment, and critical safety systems, such as visual flame detectors, to minimize the impact of RT on continuing operations or outage schedules.

With the SENTINEL™ 1075 SCARPro, you can obtain up to 98% reduction in exclusion zones compared to conventional radiography techniques.

Minimize Exclusion Zones

With the SENTINEL 1075 SCARPro, you can obtain up to 98% reduction in exclusion zones compared to conventional radiography techniques.

Utilizing FlexShield radiation blankets, guide tube shields, and scatter shields with proper technique, you can achieve exclusion zones as small as 3 to 6 feet (1 to 2 meters) for demanding applications or 10 to 15 feet (3 to 5 meters) for typical applications required by clients to realize the SCAR value.

QSA Global, Inc.’s sales team and local distributors provide custom-tailored solutions to help your clients maximize turnaround efficiency, eliminate interference from radiographic testing on nucleonic process control gauges, and meet exclusion zone requirements.

SCAR Production: Turnarounds & Outages

During turnarounds and outages, traditional gamma radiography is either performed in shooting windows totaling only 1-2 hours in a 12-hour shift or other trades such as welders and electricians must be cleared from the exclusion zone while radiography is performed.

The SCAR Radiography technique utilizing the SENTINEL 1075 SCARPro eliminates the need for shooting windows or impacting other trades. The SENTINEL 1075 SCARPro enables continuous 24/7 gamma radiography inspections maximizing inspection productivity and accelerating your turnaround.

Nucleonic Gauges & Safety Systems

Gamma rays, x-rays, and scatter radiation from radiographic testing can interfere with nucleonic process control gauges and critical safety systems such as visual flame detectors (VFDs) commonly found in oil refineries, petrochemical plants, and power plants. Nucleonic gauges utilize radiation in myriad process control applications including measuring process fluid density, locating phase interfaces, and level switches. UV VFDs detect UV radiation from fires and can trigger fire suppression systems.

These systems often cannot differentiate the radiation they are designed to detect from radiation resulting from radiographic testing. As a result, critical processes may need to be manually monitored, operated without real-time process information, or shut down entirely while traditional radiographic testing (RT) is being performed.

The SCAR radiography technique allows you to perform RT in close proximity to these sensor systems without risking interfering with process measurements or generating false alarms in critical safety systems.

Switch Configurations Effortlessly

The SENTINEL 1075 SCARPro allows you to realize the value of SCAR radiography for virtually any type of shot. The system comes standard with a contact fixture kit to perform contact SCAR. An optional offset kit is available for superimposed or elliptical shots on small diameter pipes or profile radiography.

Contact Fixture Configuration

The SENTINEL 1075 SCARPro comes standard with a contact fixture kit to perform category I close-contact SCAR radiography. The contact fixture kit allows you to securely mount the exposure device to any diameter pipe. Contact shots are typically preferred on piping 3″ OD and above.

Contact Fixture Configuration

An optional offset fixture kit is available when you require an increased source to film distance (SFD) for small piping, typically 2″ and below. The offset fixture kit allows you to achieve the necessary SFD to perform superimposed and elliptical shots. The offset fixture kit securely mounts the source projector in any orientation. If the pipe itself is not suitable for mounting due to insulation, thin wall, access, or other issues, the offset fixture kit can easily be attached to other nearby piping or even structural material and the components can be configured to aim the SENTINEL 1075 SCARPro’s collimated beam at the sample.

Projection Style Configuration

Using a standard SENTINEL guide tube, guide tube shield, controls, and external collimator, the SENTINEL 1075 SCARPro operates as a category II projection-style gamma radiography source projector to perform industrial axial, radial and panoramic exposures in tight access areas where the body of the gamma-ray projector will not fit. Interchangeable front plates allow for standard guide tube application or direct contact shots. “SENTINEL™ 1075 SCARPro is a trademark of QSA Global, Inc.”

SENTINEL™ SENTRY Series Co-60 Gamma-Ray Source Projectors

Experience extreme durability, simple operation, and low operator dose.

The SENTINEL SENTRY Series gamma-ray source projectors are mobile industrial radiography exposure devices designed specifically for Co-60.

Proven design elements from QSA Global, Inc.’s SENTINEL 880 Series devices are incorporated into the SENTINEL SENTRY Series to ensure safe operation and maximum up time of your equipment delivering maximum productivity for your clients.

Compare SENTINEL SENTRY Series Gamma-Ray Source Projectors

SENTINEL SENTRY Series		330 SENTINEL SENTRY Series 110
Co-60	330 Ci (12 TBq)	Co-60	110 Ci (4.07 TBq)
Weight	780 lb (354 kg)	Weight	605 lb (274 kg)
Weight of DU Shield	485 lb (218 kg)	Weight of DU Shield	295 lb (133 kg)
Transport	Type B(U) package	Transport	Type B(U) package

ISOTOPES

SENTINEL™ Iridium-192 Industrial Radioisotopes.

QSA Global, Inc. is the world-leading supplier of SENTINEL Iridium-192 (Ir-192) sealed radioisotope sources to the industrial gamma radiography industry. Our exclusive and diversified supply chain ensures a reliable, long-term supply of SENTINEL Ir-192 to our customers.

Our SENTINEL Ir-192 radioisotope sources are available up to 240 Ci (8.88 TBq) activity. Custom activities may be ordered to meet your specific application needs.

QSA Global, Inc.’s SENTINEL Ir-192 radioisotope sources are double-encapsulated and laser welded for superior quality and safety. Natural and enriched Iridium-192 sources are constructed using iridium metal discs or pellets of uniform size in a welded stainless steel capsule. Utilizing enriched Ir-192 produces smaller focal sizes for optimum image quality.

SENTINEL Ir-192 is designated for use within the steel thickness range of 0.39 in-3.54 in (10 mm-90 mm) per ISO 5579:2013.

SENTINEL Ir-192 in Gamma Radiography

Iridium is also used throughout the industrial radiography industry to detect structural damage to metal parts. QSA Global, Inc.’s SENTINEL Ir-192 radioisotope sources are used to perform industrial gamma radiography on materials such as castings, forgings, and weld defects.

Gamma Energy Range	206-612 keV
Steel Thickness	0.39 in-3.54 in (10 mm to 90 mm)
Radioisotope Output	At 1 m per Ci (37 GBq): 0.48 R/hr (4.80 mSv/hr) At 1 ft per Ci (37 GBq): 5.2 R/hr (52.0 mSv/hr)
Half-Life	74 days
Special Form Certification	USA/0392/S-96, USA/0179/S-96

Material	Approximate Material Density	Approximate Half-Value Thickness
Concrete	2.35 g/cm³	1.7 in (43.2 mm)
Steel	7.80 g/cm³	0.512 in (13.0 mm)
Lead	11.34 g/cm³	0.200 in (5.1 mm)
Tungsten	17.80 g/cm³	0.130 in (3.3 mm)

SENTINEL™ Selenium-75 Industrial Radioisotopes.

QSA Global, Inc.’s SENTINEL Se-75 radioisotope sources are double-encapsulated and sealed using laser welding for superior quality and safety. 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.

SENTINEL Se-75 in Gamma Radiography

QSA Global, Inc.’s SENTINEL Se-75 radioisotope sources are ideal for controlling the size of the exclusion zone during radiographic exposures at congested work sites. SENTINEL Se-75 radioisotope sources are used on off shore oil rigs and at power generation plants during outages to reduce non-occupational worker exposure.

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™ Cobalt-60 Industrial Radioisotopes

QSA Global, Inc. is the world-leading supplier of SENTINEL Cobalt-60 (Co-60) sealed radioisotope sources to the industrial gamma radiography industry. Our exclusive and diversified supply chain ensures a reliable, long-term supply of SENTINEL Co-60 to our customers.

QSA Global, Inc.’s SENTINEL Co-60 radioisotope sources are compacted High Specific Activity (HSA), double-encapsulated, and laser welded for superior quality and safety.

Our SENTINEL Co-60 radioisotope sources are available in 300 Ci (11.10 TBq) activity. Custom activities may be ordered to meet your specific application needs.

Designed, tested, and manufactured to the requirements of ISO 9001/EN46001

SENTINEL Co-60 in Gamma Radiography

Cobalt is used throughout the industrial radiography industry to detect structural damage to metal parts. QSA Global, Inc.’s SENTINEL Co-60 radioisotope sources are used to perform industrial gamma radiography with relatively short exposure time on thicker materials such as heavy castings, thick steel weldments, and concrete.

Gamma Energy Range	1.17-1.33 MeV
Steel Thickness	2.0–6.0 in (50-150 mm)
Concrete Thickness	10 to 40 in (200-1,000 mm)
Light Alloys Thickness	1.5–7.5 in (40-190 mm)
Radioisotope Output	At 1 m per Ci (37 GBq): 1.30 R/hr (13.0 mSv/hr) At 1 ft per Ci (37 GBq): 14.0 R/hr (140 mSv/hr)
Half-Life	5.27 years
Special Form Certification	USA/0377/S-96

Material	Approximate Material Density	Approximate Half-Value Thickness
Concrete	2.35 g/cm³	2.400 in (61.0 mm)
Steel	7.80 g/cm³	0.827 in (21.0 mm)
Lead	11.34 g/cm³	0.500 in (12.7 mm)
Tungsten	17.80 g/cm³	0.310 in (7.9 mm)
Depleted Uranium (DU)	18.70 g/cm³	0.270 in (6.8 mm)

ACCESSORIES

SENTINEL™ Collimators

Item Number	Style	Weight	Approximate HVL Ir-192 / Se-75	Compatible Guide Tube
GCN101	Side Throw: 68° Conical	1.75 lb (0.79 kg)	4.3 / 16	Swivel End Guide Tube
TCN799	Side Throw: 60° Conical	1.75 lb (0.79 kg)	4.3 / 16	Fixed Stop Guide Tube
TCN827	Side Throw: 60° Conical	4.3 lb (1.95 kg)	6.8 / 26	Guide Tube Extension
TCN828	Side Throw: 60° Conical	9.5 lb (4.32 kg)	8.3 / 33	Guide Tube Extension
TCN846	Panoramic: 20° x 360°	4.3 lb (1.95 kg)	7.8 / 28	Guide Tube Extension

SENTINEL™ Remote Controls

Reel Style Remote Controls

Item Number	Control Conduit Length	Unit Weight
SAN88525	25 ft (7.6 m)	18 lb (8 kg)
SAN88535	35 ft (10.7m)	21 lb (9 kg)
SAN88550	50 ft (15.2 m)	26 lb (12 kg)

Pistol Style Remote Controls

Item Number	Control Conduit Length	Unit Weight
SAN88225	25 ft (7.6 m)	14 lb (6 kg)
SAN88235	35 ft (10.7m)	17 lb (8kg)
SAN88250	50 ft (15.2 m)	22 lb (10 kg)
SAN88225R	25 ft (7.6 m)	14 lb (6 kg)
SAN88235R	35 ft (10.7 m)	17 lb (8 kg)
SAN88250R	50 ft (15.2 m)	22 lb (10 kg)

SENTINEL™ Shielding

Shielding choices can vary greatly depending on your application and where you are performing SCAR radiography testing. The following are just a few of the options QSA Global, Inc. offers to ensure you achieve the SCAR results you are seeking. QSA Global, Inc.’s sales teams and local distributors provide custom-tailored solutions, defining the proper techniques and shielding criteria to meet your clients’ exclusion zone requirements.

Shielding Options & Specifications

Item Number	Style	Dimensions in (cm)	Description
BLA001	Bismuth Silicon FlexShield Blanket	16 × 16 × 0.4 (40 × 40 × 1)	Shielding value: 2.5 HVL (Se-75) 1.25 HVL (Ir-192) Flexible shielding blanket for back shielding primary beam radiation as well as scatter radiation (Compton scatter). With a protective cover and integrated grommets on the sides, the durable bismuth impregnated silicon FlexShield blanket makes setup easier and faster.
BLA002	Bismuth Silicon FlexShield Blanket	10 × 10 × 0.4 (25 × 25 × 1)	Shielding value: 2.5 HVL (Se-75) 1.25 HVL (Ir-192) Flexible shielding blanket for back shielding primary beam radiation as well as scatter radiation (Compton scatter). With a protective cover and integrated grommets on the sides, the durable bismuth impregnated silicon FlexShield blanket makes setup easier and faster.
BLA003	Bismuth Silicon FlexShield Blanket	12 × 36 × 0.4 (30 × 90 × 1)	Shielding value: 2.5 HVL (Se-75) 1.25 HVL (Ir-192) Flexible shielding blanket for back shielding primary beam radiation as well as scatter radiation (Compton scatter). With a protective cover and integrated grommets on the sides, the durable bismuth impregnated silicon FlexShield blanket makes setup easier and faster.
TUB011-X	FlexShield Guide Tube Shield	Custom-tailored length available	Shielding value: 2.5 HVL (Se-75) 1.25 HVL (Ir-192) Reduce flash dose while performing projection style radiography.
107560-08	Beamport Shield	Specifically designed to fit SENTINEL™ 1075 SCARPro collimator. Flexible to conform to any pipe diameter 3 in and above.	Shielding value: 2.5 HVL (Se-75) Molded FlexShield sleeve slides over the SENTINEL™ 1075 SCARPro collimator. The beamport shield allows primary beam radiation to pass unattenuated while attenuating the major source of scatter radiation off the source sidewall of the pipe.

Source Guide Tubes & Extensions

SENTINEL™ Source Guide Tubes are flexible stainless steel tubes with a protective polyvinyl covering and are available to fit all SENTINEL gamma-ray source projectors. The Extreme Condition Source Guide Tubes are designed for use in extreme weather conditions. They have a temperature range of -60 to 135°C (-76 to 275°F). All Guide Tubes and Extensions are a standard length of 7 ft (2.1 m). Custom lengths are available upon request.