Sigma projetor 사용자 설명서

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TECHNICAL SPECIFICATIONS 
 
 
1.1
 
Exposure Device Description 
The Model 880Delta, Model 880 Sigma, Model 880 Elite and Model 880 Omega are physically small, 
lightweight, portable industrial radiographic exposure devices.  The ‘S’ tube design exposure device 
consists of a cast depleted Uranium (DU) shield contained and secured within a 300 series stainless steel 
tube with stainless steel discs welded at each end to form a cylinder shaped housing.  Both discs are 
recessed into the stainless steel tube to provide protection for the locking mechanism at the rear side and 
the outlet port at the front side. 
 
The welded tubular hosing is oriented horizontally to provide easy access to the locking mechanism and 
source assembly connector and to provide easy access to the outlet port for connection of the projection 
sheaths.  The internal void space of the welded housing is filled with polyurethane foam to prevent the 
ingress of water or foreign material but is open to atmospheric pressure.  The stainless steel housing 
containing the DU shield, locking mechanism, outlet port, protective covers and required labels comprise 
the radioactive material transport package. 
 
A plastic jacket surrounds the welded housing and serves as a protective barrier for the labels and 
provides the means for carrying and placement during use as a radiographic exposure device.  The 
Model 880 Delta is identified by a yellow colored jacket.  The Model 880 Sigma is identified by a black 
colored jacket.  The Model 880 Elite is identified by a blue colored jacket and the Model 880 Omega is 
identified by a safety orange colored jacket.  The plastic jacket incorporates a carrying handle and a base 
that is used during radiographic operations but is not required for transportation purposes.  The plastic 
jacket may be removed for certain applications such as when the exposure device is securely mounted to 
a pipe-crawler locomotive or a pipe-liner sled. 
 
The Model 880 Delta, Sigma, Elite and Omega exposure devices are designed, tested, and manufactured 
to meet the requirements of ANSI N432-1980, ISO 3999-1:2000(E), IAEA TS-R-1 (1996 Revised), 
USNRC 10CFR34, 10CFR71 and 49CFR173 requirements.  Additionally, these exposure devices are 
designed, manufactured and serviced under an ISO 9001 QA Program and a USNRC 10CFR71, Subpart 
H QA Program.  The QA program also includes the reporting requirements of USNRC 10CFR21 for 
suppliers of source and byproduct materials.  
 
Titanium ‘S’ Tube
Source Assembly 
Plunger Lock 
Locking Mechanism 
 
 
Remote  
Control  
Connector 
 
Welded Shield Container
Protective 
Plastic Jacket with 
Carrying Handle 
Depleted Uranium Shield
Outlet Port 
 
 
Guide Tube 
Connector