Procurement of the 10TBq 137Cs Source, Irradiator and Filters
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Procurement of the 10TBq 137Cs Source, Irradiator and Filters GIF 137Cs at start: 740 GBq Other characteristics of 137 Cs remain: Half-life: 30.17 y Beta decay (gamma emission 662 keV) Inquiries carried out in 2009 suggest that the cost of the whole system will be around 300-400 K Given that cost > 200K, a market survey (1+ 2 weeks) followed by an invitation to tender (2 + 4 + 1 weeks) is necessary before contract is awarded. Procurement responsible: R.Fortin (PH-DT) with vital contributions of CERN Safety and Procurement services GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group 20/06/12 R. Fortin PH-DT-DI 1
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GIF++ The new Gamma Irradiation Facility at CERN. Physics Department. Detector Technology Group. Procurement of the 10TBq 137Cs Source, Irradiator and Filters. GIF 137Cs at start: 740 GBq Other characteristics of 137 Cs remain: Half-life: 30.17 y - PowerPoint PPT Presentation
Transcript of Procurement of the 10TBq 137Cs Source, Irradiator and Filters
R. Fortin PH-DT-DI 1
Procurement of the 10TBq 137Cs Source, Irradiator and Filters
GIF 137Cs at start: 740 GBq Other characteristics of 137Cs remain:Half-life: 30.17 yBeta decay (gamma emission 662 keV) Inquiries carried out in 2009 suggest that the cost of the whole system will be around 300-400 K Given that cost > 200K, a market survey (1+ 2 weeks) followed by an invitation to tender (2 + 4 + 1 weeks) is necessary before contract is awarded. Procurement responsible: R.Fortin (PH-DT) with vital contributions of CERN Safety and Procurement services
GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
20/06/12
R. Fortin PH-DT-DI 2
Criteriae defined in 2009The source was described as:Single 10 TBq 137Cs source with it’s “Type B” travel container<< for transportation, fixation, use and service, in case the source will not supplied by the same firm than the radiator and/or on different timescales >> The irradiator was described as:One fully functional irradiator with it’s remote control console<< “Main” panoramic collimator, “Secondary” rear collimator, axis @ 150 cm above the ground, Dose Rate monitors to control the functionality, control room distance 30m… >> The radiation filters were described as:One filter system<< Remote controlled programmable, four vertical slides, attenuation ≥ 1:1 - 10,000:1 >> Retrieval of the old irradiator…This is an option of the specifications document
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GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
R. Fortin PH-DT-DI 3
Replies received in 2009
- Three well-established firms (FR+CH+DE) showed interest to provide CERN with the future irradiator of GIF++ after the market survey of 2009.
- The three firms individually presented their project as a package where the Irradiator, Source and Controls were combined according to our specifications document SPSC-P-339.
These 3 candidates were asked to update and reiterate their proposals.
- Two bidders need to reengineer their project
- As soon as finalized, our updated specifications document will be sent to current and all potential candidates.
Today only one candidate fulfills our requirements!
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GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
R. Fortin PH-DT-DI 4
Lateral view of the irradiatorand H4 Beam line
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Top view of the irradiatorand H4 Beam line
GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
R. Fortin PH-DT-DI 5
The irradiator shown with both beams inside the bunker
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m-beam
GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
R. Fortin PH-DT-DI 6
The 137Cs Source:(compressed pellets of Caesium chloride)
Info : nuclitec GmbH
- Shape of capsule: RSL6030 ( 21.3 x L26.4mm outer ∅dimensions)- The source has a double encapsulation of stainless steel- The source comes in a stainless steel holder according to ISO 4037-1
- Country of origin: Russia ( according to our candidates )- Nominal Activity : 200 Ci (± 20%)- CERN RP will ensure that the manufacturer of the source applies ISO 2919
Such 137Cs sources have a delivery time of 8 to 12 months !
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GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
R. Fortin PH-DT-DI 7
Conclusion
Procurement plan key dates:
- Sept 1st, 2012 for order sent out,
- 3rd quarter 2013 for delivery.( the full system in GIF++ area )
This schedule allows to commission the facility confortably.
20/06/12
GIF++ The new Gamma Irradiation Facility at CERN
Physics DepartmentDetector Technology Group
