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  • Title: Single-ion dosemeter based on floating gate memories.
    Author: Cellere G, Paccagnella A, Visconti A, Bonanomi M, McNulty PJ.
    Journal: Radiat Prot Dosimetry; 2006; 122(1-4):457-9. PubMed ID: 17132673.
    Abstract:
    Floating Gate (FG) nonvolatile memories are based on a tiny polysilicon layer (the FG) which can be permanently charged with electrons or holes, thus changing the threshold voltage of a MOSFET. Every time a FG is hit by a high energy ion, it experiences a charge loss, depending on the ion linear energy transfer (LET) and on the transistor geometrical and electrical characteristics. This paper discusses the opportunities to use this devices as single an ion dosemeter with sub-micrometer spatial resolution and capable of distinguish the impinging ion LET.
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