An ultra-thin diamond membrane as a transmission particle detector and vacuum window for external microbeams | Zendy

Veljko Grilj | Zendy; N. Skukan | Zendy; M. Pomorski | Zendy; Wataru Kada | Zendy; Naoya Iwamoto | Zendy; Toshio Kamiya | Zendy; Takeshi Ohshima | Zendy; M. Jakšić | Zendy

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An ultra-thin diamond membrane as a transmission particle detector and vacuum window for external microbeams

Author(s) -

Veljko Grilj,

N. Skukan,

M. Pomorski,

Wataru Kada,

Naoya Iwamoto,

Toshio Kamiya,

Takeshi Ohshima,

M. Jakšić

Publication year - 2013

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4833236

Subject(s) - microbeam , diamond , materials science , detector , optics , optoelectronics , elastic recoil detection , thin film , nanotechnology , physics , composite material

Several applications of external microbeam techniques demand a very accurate and controlled dose delivery. To satisfy these requirements when post-sample ion detection is not feasible, we constructed a transmission single-ion detector based on an ultra-thin diamond membrane. The negligible intrinsic noise provides an excellent signal-to-noise ratio and enables a hit-detection efficiency of close to 100%, even for energetic protons, while the small thickness of the membrane limits beam spreading. Moreover, because of the superb mechanical stiffness of diamond, this membrane can simultaneously serve as a vacuum window and allow the extraction of an ion microbeam into the atmosphere

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