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Buying Organisation The Institute Laue-Langevin (ILL)
Opportunity Type Private Sector
Opportunity Method Contract Opportunity
Notice Type Notice
Nature of Opportunity Works
Contract Description:


ILL’s Tritium Gas Analysis Station is used to quantify the amount of 3H in gas samples taken in and around the structures of the nuclear reactor. It consists of a pump, pressure gauges, an analysis chamber, a high voltage supply, preamplifier, and electronics to calculate the activity and display the result. ILL is looking to upgrade the equipment currently in use and would like to hear from suppliers interested in assisting.

The pump is used to create a depression in the chamber to 1 bar below atmospheric pressure. Currently, this is measured via needle gauges, but ILL now require digital gauges that can be removed for calibration. The gas sample is attached to the chamber via a fixed inox line which is put under depression. The change in pressure allows the gas to be pulled into the chamber where it is measured through the use of ionization, pre-amplification and electronics.

The materials used in the construction must be replaceable and able to be disconnected for maintenance and calibration either internally at ILL or externally. The station must be able to analyse samples that are low in quantity of gas and allow for dilution or a return of the chamber to atmospheric pressure via the injection of gases such as azote to fill the chamber for a homogenized count. It must be able to measure in the range of MBq/m3 to at least GBq/m3. A maintenance contract would be necessary including a fast turnaround for calibration of parts. Replacement parts must be readily available with a requirement of a rapid changeover if in case of a part-failure.

In summary, equipment required by ILL is as follows:

1. Pump

2. Pressure gauges (digital)

3. An analysis chamber

4. A high voltage supply

5. Preamplifier

6. Electronics to calculate the activity and display the result

How to Participate

STFC has been asked to propose UK companies to participate in this tender.

If, based on the description above, you think your company could respond, please contact Eileen Forsey on or 07546 310469 by 4 January 2021.


ILL releases advance notice of high-value tender opportunities (>50K EUR) in order to identify interested companies at an early stage. Further information will be released on 5 January 2021.


The Institut Laue-Langevin (ILL) is an international research centre at the leading edge of neutron science and technology. The ILL provides scientists with a high flux of neutrons feeding some 40 state-of-the-art instruments, which are constantly being developed and upgraded. For more information on ILL, please visit

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Response Deadline 04-01-21 00:00