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SENTINEL 880 Delta Gamma Projector
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SENTINEL 880  Delta, Elite and Omega gamma projectors are portable, lightweight and compact industrial radiographic exposure devices. The patented device body consists of a titanium ‘S’ tube and cast depleted uranium (DU) shield contained within a 300 series stainless steel tube with stainless steel discs welded at each end forming a cylinder shaped housing. The discs are recessed to provide protection for the rear mounted locking mechanism and front mounted outlet port.

Model 880 series gamma projectors are used for industrial applicationsof gamma radiography to inspect materials and structures in thedensity range of approximately 2.71 g/cm3 through 8.53 g/cm3.

The horizontally oriented design allows the locking mechanism, sourceassembly connector and outlet port to be easily operated, simplifyingconnection of source guide tubes and remote controls.

EXPOSURE DEVICE
The exposure device body, containing the DU shield, locking mechanism, outlet port, protective covers and requiredlabels*, comprises the radioactive material transport Type B(U) package.

REMOVABLE JACKET
An impact resistant plastic jacket surrounds the exposure device to protect labels and provide the means for carrying andplacement during radiographic operations. The three models are identified by jacket color; yellow for the 880 Delta, blue for the 880 Elite and orange for the 880 Omega gamma projectors.

 

880 Model Series
Delta Sigma Elite Omega

Primary Application
Industrial Gamma Radiography

Dimensions (All Models)
Length13.33in(33.8cm)
Width7.5in (19.1cm)
Height9 in (22.9cm)

Weight
Delta:52 lb (23.6kg)
Elite:42 lb (19.0kg)
Omega:33 lb (15.0kg)

Activity of Depleted Uranium Shield
Delta 5.4mCi (200MBq), Elite 3.8mCi (141MBq), Omega 2.7mCi (101MBq)

Certification
Delta, Elite, Omega

Type B(U) package, USNRC & USDOT Certification Number USA/9296/B(U)-96
Type B(U) package, CNSC CDN/E199/-96
Type A transport package, 49CFR173.415 and IAEA TS-R-1 (1996 Revised)

Accreditation
SENTINELTM 880 Delta, Elite, and Omega models are designed, tested and manufactured to meet the requirements of ANSI N432-1980, ISO 3999-1 2000E, IAEA TS-R-1 (1996), USNRC 10CFR34, 10CFR71, 49CFR173, MA-1059-D-334-S and CNSC R-061-0001-0-2012*. Additionally, the exposure devices are designed, manufactured and serviced under a QA program that has been accredited to ISO 9001 (2000) and approved in accordance with USNRC 10CFR71, Subpart H. The QA program also includes the reporting requirements of USNRC 10CFR21 for suppliers of source and byproduct materials.

*Omega is not included in MA-1059-D-334-S and CNSC R-061-0001-0-2012

Construction
Exposure Device
Depleted Uranium (DU) shield encased within a welded tubular stainless steel shell with stainless steel end
plates and stainless steel investment castings. Interior void space filled with rigid foam.
Removable Jacket
One-piece, high impact resistant, plastic jacket incorporating a carrying handle and base.

Materials
Titanium 'S' Tube, DU Shield, Stainless Steel Tubular Shell and Plates, Aluminum, Brass, Tungsten, and Polyurethane

Source Assembly and Authorized Contents
USNRC Model Number: A424-9 source assembly with a double encapsulated Ir-192 sealed source. The IAEA/USDOT Special Form Certificate number is USA/0335/S. In addition, the following isotopes may also be utilized in the 880 series exposure devices.

Se-75 (USA/0502/S-96), Co-60 (USA/0165/S-96), Yb-169 (USA/0597/S-96), Cs-137 (USA/0335/S-96)

 

 

 

Isotope

Se-75

Ir-192

Co-60

Yb-169

Cs-137

Assembly
Model Number

A424-25W

A424-9

A424-19

91810

A424-30

Gamma Energy
Range

66-401keV

206-612keV

1.17-1.33MeV

8-308keV

N/A

Half-Life

120 Days

74 Days

5.27 Years

32 Days

30 Years

Approximate
Steel Working
Thickness

3-29mm

12-63mm

50-150mm

2-20mm

N/A

Device/Source Maximum Capacity

880 Delta

150Ci 5.55TBq

150Ci 5.55TBq

65mCi 2.40GBq

20Ci 0.74TBq

380mCi 14GBq

880 Elite

150Ci 5.55TBq

50Ci 1.85TBq

25mCi 925MBq

20Ci 0.74TBq

380mCi 14GBq

880 Omega

80Ci 3.00TBq

15Ci 0.55TBq

N/A

30Ci 1.11TBq

N/A

Controls and Guide Tubes
Compatible with standard, and extreme remote controls and source guide tubes.

Inspection Requirements
Daily pre-operational inspection for obvious damage to the system.
See device operation and maintenance manual for detailed maintenance requirements.

Maintenance Requirements
Most national regulations require inspection and maintenance of the system at quarterly intervals. The
complete annual servicing ensures the integrity of the system. Shorter frequencies of inspection and
maintenance are required when the system is operated under severe operating environments. In some
cases, the system should be serviced immediately after certain jobs in severe environmental working
conditions.
See device operation and maintenance manual for detailed maintenance requirements

Operating Temperature Range
-40oF to 300oF (-40oC to 149oC)