UK SBS PR16107

CLOSING TIME FOR BIDS IS 26/01/2017 AT 14:00 HOURS.

DO NOT APPLY DIRECTLY TO THE BUYER - PLEASE FOLLOW THE INSTRUCTIONS PROVIDED IN THE ADDITIONAL TEXT SECTION .

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This requirement is for a pulsed power supply for the ISIS injection dipole. The new power supply will give a 15 kA pulsed output with a rise and fall time of 100 µs and a nominal flat top of 500 µs. The designated load is described in AW18-2. The supplier will specify the output cable to be used. The cable is expected to be a significant proportion of the load.

The flat top, fall time and zero current stability of the pulsed output are critical to operational needs.

A ‘Start Trigger’ will signal the beginning of the rise time. This will occur before the proton beam is present and is therefore of lower importance. The pulsed output is expected to be at operating current and stable by the time the beam is injected. A ‘Stop Tigger’ will then signal the beginning of the fall time. During this time the proton beam will be circulating in the synchrotron and passing through the magnets. The magnet current will fall to zero within 100 µs before acceleration of the protons begins. The current must then be stable at zero, when measured with no beam, for the remainder of the cycle.

The power supply will be used at an operational facility and must have high performance, reliability and availability. It will be based on proven technology that is established in service. STFC staff will be trained by the supplier in the operation, maintenance, fault finding and repair of the power supply. The supplier will advise on a complete set of suitable spares, which will be quoted for as a separate item. STFC will consider purchase of the spares after successful testing of the power supply and cable.

The requirement is for one power supply to provide current to the four injection dipole magnets in series, plus a complete set of spare parts.

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Please see our e-sourcing portal for full details.

Additional information: This procurement will be managed electronically via the Crown Commercial Service’s e-Sourcing Suite.

To participate in this procurement, participants shall first be registered on the e-Sourcing Suite.

If Bidders have not yet registered on the eSourcing Suite, this can be done online at

https://gpsesourcing.cabinetoffice.gov.uk by following the link ‘Register for CCS eSourcing’.

Please note that, to register, Bidders must have a valid DUNS number (as provided by Dun and Bradstreet) for the organisation which you are registering, who will be entering into a contract if invited to do so. Note: registration may take some time please ensure that you allow a sufficient amount of time to register.

Full instructions for registration and use of the system can be found at

http://ccs.cabinetoffice.gov.uk/i-am-supplier/respondtender Once you have registered on the eSourcing Suite, a registered user can express an interest for a specific procurement. This is done by emailing ExpressionOfInterest@ccs.gsi.gov.uk.

Your email must clearly state:

the name and reference for the procurement you wish to register for;

Your organisations full name as a registered supplier; the name and contact details for the registered individual sending the email.

Crown Commercial Service (CCS) will process the email and then enable the Bidder to access the procurement online via the e-Sourcing Suite.

The registered user will receive a notification email to alert them once this has been done.

As a user of the e-Sourcing Suite you will have access to Emptoris email messaging service which facilitates all messages sent to you and from you in relation to any specific RFX event.

Please note it is your responsibility to access these emails on a regular basis to ensure you have sight of all relevant information applicable to this opportunity.

For technical assistance on use of the e-Sourcing Suite please contact Crown Commercial Service (CCS) Helpdesk (Not UK SBS Ltd ) : Freephone: 0345

10. 3503 email: supplier@ccs.gsi.gov.uk Training support to respond to a requirement is available to bidders at

http://www.uksbs.co.uk/services/procure/Pages/suppli er.aspx