Development of a higher power cooling system for lithium targets

B. Phoenix, Stuart Green, Malcolm Scott, J.R.J. Bennett, T.R. Edgecock

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)
199 Downloads (Pure)


The accelerator based Boron Neutron Capture Therapy beam at the University of Birmingham is based around a solid thick lithium target cooled by heavy water. Significant upgrades to Birmingham's Dynamitron accelerator are planned prior to commencing a clinical trial. These upgrades will result in an increase in maximum achievable beam current to at least 3 mA. Various upgrades to the target cooling system to cope with this increased power have been investigated. Tests of a phase change coolant known as “binary ice” have been carried out using an induction heater to provide a comparable power input to the Dynamitron beam. The experimental data shows no improvement over chilled water in the submerged jet system, with both systems exhibiting the same heat input to target temperature relation for a given flow rate. The relationship between the cooling circuit pumping rate and the target temperature in the submerged jet system has also been tested.
Original languageEnglish
JournalApplied Radiation and Isotopes
Early online date29 Jul 2015
Publication statusE-pub ahead of print - 29 Jul 2015


  • Lithium target
  • BNCT
  • Cooling


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