Heavy ions at the DREAMS facility

The Dresden Accelerator Mass Spectrometry (DREAMS) facility is designed for the measurement of ¹⁰Be, ²⁶Al, ³⁶Cl, ⁴¹Ca and ¹²⁹I [1]. The actual goal is to extend the measurement capabilities to actinides. For this purpose, a time-of-flight system was designed and is currently under construction. The system is based on a 1.5 m long flight path and thin carbon foils with Micro Channel Plates as start and stop detectors. For an optimal tuning of the system with low currents, special beam diagnostic elements are planned. In order to characterize the existing system, first measurements of actinide samples have been performed in collaboration with the ANU and ANSTO, using an ionization chamber as detector. Measurements of Pu-isotopes in the 3+ and the 5+ charge state have been conducted.

[1] S. Akhmadaliev et al., NIMB 294 (2013) 5.