SPECIFICATIONS FULL AUTOMATION OF THE MULTIPURPOSE GAMMA IRRADIATION FACILITY 1. Scope This Statement of Work (SOW) describes the requirements for equipment and services necessary for the full automation of the multipurpose (hereinafter referred as the System ) of the Philippine Nuclear Research Institute (PNRI) (hereinafter referred as the End-User ). Upon completion, the System shall be continuous, fully automated, 4-pass 2-level tote box irradiator with additional source rack containing 2-modules. 1.1. Background Information The irradiation facility started as a Gammabeam-651 PT irradiator (Nordion Canada) in 1989 with 4 turntables and 8 individually-operated source racks. It was upgraded in 2008 from a batch to a semi-automated, 2-pass 2-level tote box type of irradiator, 3 tote boxes per pass and 14 tote boxes per batch. It has a single source rack containing 4 modules with 40 pencils per module. The tote boxes are manually loaded by pushing these boxes from the storage area to the source pass mechanism and the tote boxes rotate automatically around the source during irradiation. The irradiation facility is located inside the End-User compound. The irradiation cell is located at the ground floor of the building. It is a rectangular room and the irradiator is of wet-storage type. The details of layout of the existing facility building, irradiation cell, pool, roof inserts, source rack and source configuration can be seen in Figures 1 to 6 and Tables 1 to 2. The irradiator is being used for the different applications of radiation processing such as food irradiation, decontamination of cosmetic raw materials, radiation sterilization of medical devices and for R&D. 1.2. Specification of the Existing Irradiation Facility: Batch, semi-automated 2-pass, 2-level tote box irradiator, 3 tote boxes per pass, 14 tote boxes per batch; Single source rack with four modules (with 40 pencils per module). Presently loaded with 45 radioactive pencils; Size of tote box: 70 x 50 x 90 cm (inner dimension); PLC system; and Wet-storage type. 2. Applicable Documents The following documents shall be applicable for this Specification to the extent specified hereinafter: 2.1. Automation of the facility shall strictly follow the relevant international standards provided for in IAEA Safety Guide Radiation Safety of Gamma, Electron and X Ray Irradiation Facilities for protecting people and the environment No. SSG-8, 2010, Specific Safety Guide, latest version. See http://www-pub.iaea.org/mtcd/publications/pdf/pub1454_web.pdf In the event of conflict between the documents listed above and the content of this Specification, the content of this Specification shall take precedence to the extent of the conflict. Page 1 of 12
3. Requirements 3.1. Functional and Performance Requirements The System shall meet the following functional and performance requirements: 3.1.1. Conversion to a fully automated conveyer system; 3.1.2. Operated in stationary, batch and continuous mode, providing maximum efficiency. 3.2. Technical Requirements The System shall meet the following technical requirements: 3.2.1. Fully functional rolling transport system, 2-levels, from storage area to the irradiation cell; 3.2.2. Source pass mechanism, four-pass system (2-pass on each side of the source, 2-levels, 4-tote boxes per pass. Total of 34 tote boxes (inner dimension is 70 x 50 x 90 cm, maximum load is 125 kg); 3.2.3. Additional source rack containing 2 modules and each module with 40 dummy pencils. This shall be integrated with the existing source rack with 4 modules. The two source racks can be operated independently; 3.2.4. Additional source hoist system (pneumatic system); 3.2.5. Pneumatic cylinders for source pass mechanism; 3.2.6. New PLC control system; 3.2.7. Safety interlocks and radiation monitors; 3.2.8. Provision of temporary container for Co-60 source; 3.2.9. Unloading of existing Co-60 source to the temporary container; 3.2.10. Re-loading of existing Co-60 source to the 2 source racks (existing and additional) with the best source configuration to obtain optimum dose distribution; 3.2.11. Provide details whether the return of installation tools and temporary container is required. The details of layout of the proposed fully-automated facility and proposed source rack configuration can be seen in Figures 7. to 12. 3.3. Specific Requirements 3.3.1 The Contractor shall provide complete technical procedures, protocols, plans, including fabrication of any necessary infrastructure and/or tools required, radiation budget anticipated for personnel and time schedule for completion of the Work, as required for submission by the End-User to appropriate National Safety Regulatory Authorities for approval. 3.3.2. The Contractor shall, at the request of IAEA/End-User, ship from origin to the End-User and return installation tools and temporary container. 4. Marking The System shall have all safety markings in English language. 5. Packing The System, for the shipment by air to the End-User, shall be packed in accordance with international standards that are applicable for the shipment by air of this kind of equipment. Page 2 of 12
6. Quality requirements The System shall be manufactured, shipped and installed in accordance with the Contractor s ISO quality assurance system or an equivalent quality assurance system; The Contractor shall document the compliance with this quality assurance system. 7. Testing and Acceptance 7.1. The System, prior to shipment, shall be tested for conformance of the System with manufacturer s performance specifications and the minimum requirements specified herein. Conformance certificate or statement shall be supplied prior to on site validation. 7.2. The System, after installation, shall be tested by the Contractor together with the End-User (on site) to demonstrate that the performance meets the manufacturer s performance specifications and the minimum requirements specified herein as determined by the IAEA and the End-User. 7.3. The results of the testing of the System shall be documented by the Contractor in an Acceptance Document that shall be signed and dated by the End-User. 8. Installation and Training 8.1. The Contractor shall install the System at the End-User location; 8.2. The Contractor shall provide minimum five (5) days operation and safety (on-site) training to three (3) End-User technical staff members in the English language. 9. Deliverable Data Items The Contractor shall provide two (2) complete sets in hard copies and one (1) in electronic version in the English language of the following: 9.1. Operating Instructions; 9.2. Preventive Maintenance and Service Manual; 9.3. Technical drawings of the System and Detailed Drawing of the Irradiator; 9.4. Conformance certificate and Acceptance Document as per paragraphs 7.1. and 7.3. respectively; 9.5. Warranty Certificates. 10. Qualification Requirements 10.1. The Contractor shall work in close cooperation with End-User and the IAEA in all aspects of the Work; 10.2. The Contractor shall provide evidence of relevant international experience (complete planning, supply and/or rehabilitation of gamma irradiators, supply of control and conveyor systems). A minimum of three (3) such completed relevant jobs must have been performed in the last ten (10) years. Page 3 of 12
Figure 1. Floor Plan of the Multipurpose -ground floor (measurement in meter not to scale) Page 4 of 12
Figure 2. Floor Plan of Existing Irradiation Cell, with semi-automated, batch, 2-pass, 2-levels tote box system and single source rack (R1) - (measurement in mm not to scale) Page 5 of 12
Figure 3. Section of Irradiation Cell showing pool dimension (measurement in meter not to scale) 9 Holes Roof Insert of Source Rack of Gammabeam 651PT Irradiator 3 Holes Roof Insert of the Existing Source Rack of Irradiator Figure 4. Roof Inserts (taken from inside of irradiation cell) Page 6 of 12
Figure 5. Structure and Dimension of Existing Source Rack with 4-modules (measurement in mm not to scale) Figure 6. Existing Source Rack - Rack 1 (R1) with 4 modules, 40 pencils per module, with 45 radioactive C-188 Co-60 pencils Page 7 of 12
Table 1. Source Loading Report - Modules 1 & 3 (as of February 2009) Page 8 of 12
Table 2. Source Loading Report- Modules 2 & 4 (as of February 2009) Page 9 of 12
Figure 7. Proposed Floor Plan of Irradiation Cell with fully-automated, continuous, 4-pass, 2-levels tote box system and 2 source racks (R1 and R2) - (measurement in mm not to scale) Figure 8. Proposed Source Pass Mechanism (fully automated continuous, 4-pass, 2-levels tote box system with 4 tote boxes per pass, total of 34 tote boxes) Page 10 of 12
Figure 9. Proposed Source Racks: Rack 1 (R1) with 4-modules and Rack 2 (R2) with 2-modules R1: Existing Source Rack (4 modules) R2: Additional Source Rack (2 modules) Figure 10. Proposed Source Rack Configuration (R1 and R2) Page 11 of 12
Figure 11. Proposed Rolling Transport System at the Irradiation Cell Figure 12. Proposed Rolling Transport System at the Storage Area) Page 12 of 12