Pyramid continues to advance the performance and reliability of its ionization chamber products. Pyramid engineer Nick Dart, working in the ionization chamber assembly and test lab, has provided details of a new build of the flash therapy optimized IC64-6 chamber that demonstrates advances in gold coating, laser patterning and connection methods. The new chamber is showing good performance and stability in in-house testing and will be demonstrated on a proton system at an early opportunity.

The new gold electrodes provide:

• More precise and very consistent pattern writing
• Improved long term connection reliability
• Excellent high voltage stability

Following tests on the IC64-6, the new methods will be implemented on other chambers including the larger area IC128-25 models.