Oserix EXERTUS VOX 100 User manual

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PM/GSA/LOG – 005.01.009.001
Operation Manual
Isotope Projector
For Industrial Radiography
EXERTUS
VOX 100
Operation Manual Revision 1
PM/GSA/LOG – 005.01.009.001

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List of content
1. Introduction 3
2. Technical Descriptions 4
2.1 Technical Specifications 4
2.2 Contents of complete Industrial Radiography package 5
2.3 Equipment description 6
3. Operation 9
4. Operating Instructions 11
5. Source Changing 16
6. Inspection 19
7. Maintenance 21
8. Emergencies 21
9. Problem Solving 22
10. Disposal of Radioactive Material & Contact Details 25
11. Appendix 25

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1. INTRODUCTION
The VOX 100 Isotope Projector was designed to be used for Industrial Radiography to
determine the internal soundness of materials and structures, without destroying
the product’s usefulness, thereby assuring the satisfactory performance for which
the product was intended.
Non-Destructive Testing (NDT) is used in many different spheres of industry,
including but not limited to: Oil and Gas, Ship Building, Aviation, Power Generation
and General Construction. With Industrial Radiography it is possible to detect defects
and determine the integrity of steel in the thickness range 30mm to 150mm and
aluminum in the thickness range 200mm to 300mm .
The VOX 100 meets most of the international requirements for Radiographic
Equipment. It can accommodate a Co-60 isotope with a maximum capacity of 100Ci .
The reliability and safe operation of this Isotope Projector depends strongly on your
knowledge as a qualified Radiographer. It is the responsibility of the owner to ensure
that all personnel using this equipment are appropriately trained by a licensed
Institution.
Please ensure that the operator has read and fully understood this Operation Manual
before using this equipment.
As with most National and International Legal Regulations it is required to use
radiation monitoring and/or dosimetric devices capable of measuring in the range
2mR/hr to 1000mR/hr. The Radiographer and his/her assistants must also wear a Film
Badge, TLD or personal Dosimeter at all times while performing Industrial
Radiography. Please note that this dosimetric equipment also needs to be calibrated
by an accredited service provider within the required intervals set out by your relevant
Authority.
The Radiation Shielding Unit of this Projector is made from Depleted Uranium and
therefore all National and International Regulations with regard to Transport and
Storage of Radioactive material must be adhered to at all times, even if the Projector
is not loaded with a Sealed Radioactive Source.

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Whenever this Projector and accompanying equipment are used it is strongly advised
that all requirements are followed and applied as laid out in this Operating Manual.
All regulations regarding Radiation Safety must also be adhered to at all times!
2. TECHNICAL DESCRIPTION
2.1 Technical Specifications
Authorized contents: Co-60
Maximum activity: 100Ci (3.7TBq)
Maximum Surface dose rate: 200mR/hr (2mSv/hr)
Dimensions of Projector: 450mm(L)x315mm(W)x 320mm(H)
Weight of Projector: 185kg
Weight of Depleted Uranium shielding: 125kg
Shielding material: Depleted Uranium, Tungsten
encased in Stainless Steel housing.
Temperature range: -40 °C up to +45 °C with relative
ambient air humidity of 95% at a
temperature of +35 °C.
Winding Mechanism length: 15m standard. (Automatic Winding
Mechanism optional)
Guide Tube length: 3m standard, (Specials made to
order)
Material thickness range: 30mm – 150mm (Steel)
200mm – 300mm (Aluminum)

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Transportation of the Exertus VOX 100 loaded with a radioactive source can be
carried out by any source of transportation following the rules of safety for
transportation of radioactive goods class 7, on transport category “III-yellow”,
observing norms of safety stated in “Rules of security during transport of radioactive
materials (NP-053-04). Potency of equivalent dose in any point outside the surface of
the Exertus VOX 100 should not exceed 2mSv/hr (200mR/hr). Transport Index (TI)
shouldn’t exceed 10. Transport of the Exertus VOX 100 without a radioactive source
is provided according to transport category “II-yellow”. Total TI of a number of
packages placed in one source of transportation shouldn’t exceed 50. During
transportation provided by civil plane the total TI shouldn’t be more than 50. During
transportation provided by cargo aircraft shouldn’t be more than 200. Level of
radiation in any point of external surface of transportation source should not exceed
2mSv/hr (200mR/hr) and at 2m distance – 0.1mSv/hr (10mR/hr).
2.2 Contents of complete Industrial Radiography package.
2.2.1 The complete Industrial Radiography package consists of the following:
•The VOX 100 Isotope Projector including Source Assembly (Fig 4)
•Oserix Winding Mechanism (Fig 5)
•Oserix Guide tube
•Collimator
•Guide Tube Coupling
•Source terminal
•Wrench
•Go/No-Go gauge (Fig. 14)
•Emergency Shipping Plug
•Operation Manual
2.2.2 The Projector package consists of the following:
•The VOX 100 Isotope Projector including Source Assembly (Fig. 4)
•Guide Tube Coupling
•Go/No-Go gauge (Fig. 14)
•Emergency Shipping Plug
•Operation Manual

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Note: The Projector package doesn't include the Sealed Radioactive Source. The
Sealed Radioactive Source is supplied according to individual order following the
Sealed Radioactive Source Order procedure set out by the relevant Authorities.
2.3 Description
VOX 100 Isotope Projector
The digits in brackets refer to Figure 4 on page 7.
The Projector consists of the following basic parts: The Radiation Shielding Unit (1&
7), made of Depleted Uranium and Tungsten encased in a stainless steel housing,
side Flanges (3), two Foot Pieces, Source Assembly Securing unit (4), Guide Tube
Securing Mechanism (6) and front and rear Dust Covers (5).
The operating principle of the Projector is based on the exposure of a Radioactive
Isotope, by means of a Winding Mechanism, out of the Projector through the Guide
Tube to the point of exposure and back into the Projector into its secured position.
The Projector can only be operated when both the Winding Mechanism and Guide
Tube are properly connected.
The Projector is designed with an automatic Source Assembly Locking Mechanism,
incorporating a Three Colour Signal Indicator system, ensuring that the operator has
a visual indication of the position of the Source Assembly at all times.
Green Signal -Source Assembly is secured and the Projector is locked (Fig. 1).
Yellow Signal - Projector is unlocked and Source Assembly Locking Mechanism is
ready to be released (Fig. 2).
Red Signal - Source Assembly Locking Mechanism is released and ready to
expose (Fig. 3).
Figure 1 Figure 2 Figure 3

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Figure 4
VOX 100 Isotope Projector
The Projector nameplate contains the following information:
•Radiation hazard sign according to "Nuclear material transportation
regulation" IAEA. Vienna 1996
•Word "RADIOACTIVE" with letter height not less than 10 mm
•Model of the Isotope Projector (EXERTUS VOX 100)
•The types Radioactive Sources used
•Nominal activities of the sources
•Shielding material and its weight
•Word "Type B(U) "
•Number of the international standard with year of edition (national
standard)
•Identification sign established by authorized body
•Factory number and date of manufacturing
•Weight of complete Projector

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Guide Tube
The Guide Tube is used to guide the Source Assembly to the radiographic focal point
where the Source Terminal and/or collimator are securely attached. The Guide Tube
consists of the following basic parts: Guide Tube Coupling, Guide Tube and Source
Terminal.
Upon connecting the Guide Tube to the Projector, the Guide Tube Coupling releases
one of the Source Assembly securing mechanisms.
The Guide Tube must always be attached to the Projector prior to connecting the
Winding Mechanism.
Winding Mechanism
The Winding Mechanism is used to convey, from a safe distance, the Source
Assembly out of the Projector through the Guide Tube, into the Source Terminal
and/or Collimator and back into the Projector after exposure. The Winding
Mechanism consists of the following parts: Pistol Grip or Reel, Gearbox, Flexible Drive
Hoses (x2), Coupling and Drive Cable with Ballpoint Connector.
The Gearbox consists of the following basic parts: Crank Handle, Lid, Sealed Bearings
(x2), Drive Gear, Liner, Gearbox Housing and Guide Nipples (x2).
Figure 5

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Upon connecting the Winding Mechanism to the Projector, the Winding Mechanism
Coupling releases one of the Source Securing Mechanisms.
Source Assembly Securing Mechanism
The Source Assembly Securing Mechanism is designed in such a way that it requires
three independent safety devices to be activated / connected before the Projector
can be operated and the Source Assembly moved out of its secured position to the
point of exposure.
The following connections need to be properly secured before any radiography can
take place:
1. Guide Tube to the Isotope Projector.
2. Drive Cable Ballpoint to the Source Assembly.
3. Winding Mechanism Coupling to the Projector.
IMPORTANT:
These three connections should always be done in this sequence when connecting
and in reverse for disconnecting.
3. Operation
Before operating this equipment it is of utmost importance to take note of the
following safety precautions.
Personal Safety and Dosimetry
The radiographer and all assistants are required to wear a TLD, pocket dosimeter or
suitable monitoring device with a range of 0 – 200mR/hr (0– 2mSv/hr) while work is
performed. A Radiation Survey Meter, capable of measuring in the range 2mR/hr –
1000mR/hr (0.02mSv/hr – 10mSv/hr) must also be used at all times. Some local
authorities may also require you to wear a direct reading dosimeter or EPD (Electronic
Personal Dosimeter).

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Work Site or Location
Always ensure that Industrial Radiography only takes place in a properly secured and
restricted area with all appropriate barriers and warning signs required by local
regulations in place.
Distance
As the radioactive source emits high levels of radiation once it is out of its secured
position, it is very important to keep the distance between the radiographers and the
point of exposure as far as possible. This can be achieved by the correct layout of the
Winding Mechanism with regard to the Isotope Projector.
Equipment
Utmost care should be taken to prevent the accidental dropping or mishandling of the
Isotope Projector. Upon set-up of the radiographic system care should be taken to
safely secure all of the components, including the Guide Tube and Collimator. Special
attention should be paid to this when working overhead or in elevated positions.
Functionality Testing of Equipment
It is the responsibility of the operator to perform the following daily functionality tests
prior to any work being done.
Isotope Projector
1. The Isotope Projector cannot be unlocked without the appropriate key.
2. The Source Assembly Securing Mechanism cannot be released without the
Guide Tube being properly connected.
3. The Source Assembly Securing Mechanism cannot be released without the
Winding Mechanism being properly connected.
4. All Protective caps are in place and in good working condition.
5. The Source Assembly Female Connector passes the Go/No-Go test described in
chapter 6.
6. All required identification labels and warning signs are attached to the Projector
as required by the relevant local authority.