Supply Ion Chambers to Ministry of Defence

Supply Ion Chambers to Ministry of Defence

The Chemical, Biological, Radiological and Nuclear Delivery Team has a requirement to procure quantity seven 1000cc spherical ion chambers to support tertiary level calibration of Radiation Detection and Monitoring Equipment (RDME) used within the Ministry of Defence.

Bristol: Ion Chambers

Reference number:CBRN/00201

Deadline date:01/12/2014

This deadline is for…Deadline for Expression of Interest

Contract value: £10,000 – £113,000

Location where the contract is to be carried out:United KingdomUNITED KINGDOM,

Name of the buying organisation:Ministry of Defence, ISTAR, CBRN

Description of the contract

The Chemical, Biological, Radiological and Nuclear (CBRN) Delivery Team (DT) has a requirement to procure quantity seven 1000cc spherical ion chambers to support tertiary level calibration of Radiation Detection and Monitoring Equipment (RDME) used within the Ministry of Defence (MoD). The authority currently uses the Unidos electrometer model type 10002, therefore the ion chambers required must be compatible for use with this instrument. The chambers must meet the following specifications: 1. Ion Chamber Type: Guarded (Air Equivalent) Vented. 2. Connector Type: TNC (Male) 3. Volume: 1000cc 4. Sensitivity: ?40 µC/Gy 5. Collection Efficiency: ?99% 6. Mounting: Rigid Stem 7. Measurement Range: ?0.1mSv/h to ?0.3Sv/h 8. Energy Range: 40 keV to 1.3 MeV (?±4% across the range) 9. Directional Dependence: ?+0.5% (for rotation around the chamber axis – ?±5% (for tilting the axis up to ±45 degrees) 10. Short Term Stability: Readings taken within 2 hours after warm-up shall be within ±0.5% of those taken directly after warm-up 11. Long Term Stability: Readings taken over a prolonged period of operation shall be within ±1% of those taken directly after warm-up 12. Post Irradiation Leakage: Signal to drop to 1% within 5s after irradiation. 13. Leakage Current: ?10fA 14. Maximum Bias Voltage: 500V (positive / negative potential) Nominal +/-400V 15. Polarity Effect ?±1% 16. Extension Cable: 10m (TNC Female to TNC Male) 17. Cable Leakage: ?1pC/(Gy.cm) Each ion chamber must be accompanied with a check source and fixture to enable a geometrically reproducible location of the source. The Contractor shall be responsible for: 1. The manufacturer of seven identical 1000cc ion chambers. 2. The delivery of the chambers.

 

Documents

Classification of the contract

38580000Non-medical equipment based on the use of radiations

Additional information

Contract type:Supplies – Purchase

Is it a framework agreement?No

Is this contract related to a programme of funding?No

Contract will be awarded based on:Lowest price

Estimated length of contract:02/02/2015 – 02/08/2015

Who to contact

Contact nameAndrew Butler

Organisation nameMinistry of Defence, ISTAR, CBRN

Address#1342, Yew 3a, MOD Abbeywood, Bristol, BS34 8JH

Telephone+443067986855

Extension number:

Fax

Web address

How to apply

This requirement will be awarded to the tenderer who offers the lowest price whilst being fully compliant with the technical specifications and the commercial terms and conditions of the contract. Full details will be released at the ITT stage. Upon expression of interest suppliers are requested to state whether they are willing and able to trade electonically via P2P.