1. 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 20/06/12R. Fortin PH-DT-DI1

2. Criteriae defined in 2009 The source was described as: Single 10 TBq 137 Cs source with it’s “Type B” travel container > The irradiator was described as: One fully functional irradiator with it’s remote control console > The radiation filters were described as: One filter system > Retrieval of the old irradiator… This is an option of the specifications document 20/06/12R. Fortin PH-DT-DI2 GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group

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! 20/06/12R. Fortin PH-DT-DI3 GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group

4. Lateral view of the irradiator and H4 Beam line 20/06/12R. Fortin PH-DT-DI4 Top view of the irradiator and H4 Beam line GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group

5. The irradiator shown with both beams inside the bunker 20/06/12R. Fortin PH-DT-DI5  -beam GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group

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 ! 20/06/12R. Fortin PH-DT-DI6 GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group

7. Conclusion Procurement plan key dates: - Sept 1 st, 2012 for order sent out, - 3 rd quarter 2013 for delivery. ( the full system in GIF++ area ) This schedule allows to commission the facility confortably. 20/06/12R. Fortin PH-DT-DI7 GIF++ The new Gamma Irradiation Facility at CERN Physics Department Detector Technology Group