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

Grilj, Veljko; Skukan, Natko; Jakšić, Milko; Pomorski, Michal; Kada, Wataru; Kamiya, Tomihiro; Iwamoto, Naoya; Ohshima, Takeshi (2013) An ultra-thin diamond membrane as a transmission particle detector and vacuum window for external microbeams. Applied Physics Letters, 103 . 243106-1-243106-4. ISSN 0003-6951

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Abstract

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.

Item Type:	Article
Uncontrolled Keywords:	diamond; microprobe; transmission detector
Subjects:	NATURAL SCIENCES > Physics > Nuclear Physics
Divisions:	Division of Experimental Physics
Depositing User:	Veljko Grilj
Date Deposited:	25 Jan 2016 14:30
URI:	http://fulir.irb.hr/id/eprint/2410
DOI:	10.1063/1.4833236

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