• Policy statement

    Diamond is committed to ensuring it is clear what expenses will be reimbursed for travel to and from Diamond. This policy should be read in conjunction with Diamond’s policy on eligibility for financial support.

    Reimbursement of travel expenses will only be provided where:

    • Claims are reasonable;
    • The most economical and practical means of transport has been used; and
    • Users travel together where reasonably possible. 


  • 'Diamond Pays' Users

    The only people eligible to receive financial support for travel to and from a session at Diamond are those who are designated ‘Diamond Pays’ on the investigator list for a session (see the policy ‘Eligibility for Financial Support’). 


    Reimbursement will be for travel from and back to the User’s home institute. Travel will be reimbursed for a maximum of one direct return trip to Diamond, except where agreed in writing by the Diamond User Office in advance of the travel.

  • Buses and Trains

    The nearest railway station to Diamond is Didcot Parkway. Purchasing tickets in advance of your journey can give significant reductions in ticket price as does the use of off peak travel.


    There is a bus service between Didcot Parkway and the Harwell Campus.

    • Monday to Friday: 7am to 8pm, 2-4 times per hour
    • Saturday: 7:30am to 6:30pm, hourly 
    • Sunday: 9:30am to 6:30pm, hourly 


    Users are encouraged to plan their journey to arrive and depart during these hours and make use of these services.



  • Personal car

    Users arriving at Diamond in their own car may claim a mileage rate for the journey between their home institute and Diamond, and where necessary between Diamond and their place of accommodation. Please confirm with your insurer that you are insured appropriately to drive for business with the equipment you are bringing.


    Lone travelling by car is strongly discouraged - where there is more than one person driving from the same institute it is expected they will car share.


  • Hire car

    Hired vehicles must be approved in advance of travelling by the User Officer in writing in order to be reimbursed. Users will be asked to demonstrate the need for and economy of using a hire vehicle.


    Please ensure when hiring a car that appropriate insurance is obtained to drive for business with the equipment you are bringing. 


  • Taxi

    Taxis may only be used where:

    a) there is no alternative

    b) by travelling as a group makes the taxi less expensive than public transport. 


    Travelling with a suitcase is not a sufficient reason to use a taxi.


    Taxi’s to or from Diamond (or the Harwell Campus), should be arranged in advance with the User Office. This enables us to use a reduced rate and pay the taxi directly. Only where a Diamond booking has fallen through will a taxi fare for such a journey be reimbursed.

  • Flights

    The nearest airport to Diamond is Heathrow. Users should secure low cost airfares by booking in advance, using economy seats. Please consider the baggage you bring to Diamond and ensure you have adequate luggage allowance. 


    It is simple to travel from Heathrow, Gatwick and Luton airports to Didcot using public transport. Please contact the User Office if you are considering any other means of travel between the airport and Diamond.

    Diamond will not reimburse costs to upgrade your flight, including VIP lounges, priority boarding or seat selection. 

  • Alteration to bookings

    If, due to a change in Diamond scheduling, a planned journey must be cancelled and rebooked this must be indicated in the claim submitted. Diamond will reimburse both the cancelled journey and the rebooked journey for each person involved.

  • Force majeure

    Diamond shall not be liable in any way for any loss, damage or delay consequent upon any circumstances beyond its reasonable control. Please ensure you have adequate insurance for your travel to cover these eventualities.

  • How to claim

    All claims for reimbursement must be made using the on line claims system, reached via the home page in UAS ( 


    All claims must be made within 90 days of the last day of the session with no exception. All claims require an electronic copy of the receipt indicating the cost and showing the start and end point of the journey and the date of travel. Claims should be presented in chronological order so the journey can be followed accurately.  


    During the claims process the User Office may raise a query with you which will be emailed to you through the claims system. It is your responsibility to promptly respond to this query. If a query remains unanswered until 90 days after the last day of the session, the claim will be rejected and you shall no longer be entitled to receive the reimbursement.


    Payment will only be made to the person who directly incurred the costs. If one person paid for the flights for two people, that person needs to claim, naming the two users who used the flights. 


    If the expenses were incurred by the home institute or other third party, it is their responsibility to raise an invoice attaching all associated receipts. All documentation must be sent to the Diamond User Office.  The invoice must reference the session number and have the names of the Users for which the costs were incurred. This must be done within 90 days of the last day of the session to be reimbursed.