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

Journal Article · Mon Dec 09 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4833236· OSTI ID:22217756

Grilj, V.; Skukan, N.; Jakšić, M. ^[1]; Pomorski, M. ^[2]; Kada, W. ^[3]; Iwamoto, N.; Kamiya, T.; Ohshima, T. ^[4]

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1. Division of Experimental Physics, Ruđer Bošković Institute, 10000 Zagreb (Croatia)
2. CEA-LIST, Diamond Sensors Laboratory, Gif-sur-Yvette F-91191 (France)
3. Division of Electronics and Informatics, Faculty of Science and Technology, Gunma University, Kiryu, Gunma 376-8515 (Japan)
4. Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency (JAEA), Takasaki, Gunma 370-1292 (Japan)

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.

• OSTI ID: 22217756
• Journal Information: Applied Physics Letters, Vol. 103, Issue 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DIAMONDS
DOSES
EFFICIENCY
FLEXIBILITY
ION BEAMS
ION DETECTION
MEMBRANES
NOISE
PARTICLE BEAMS
PROTONS
SEMICONDUCTOR DETECTORS
SIGNAL-TO-NOISE RATIO
THICKNESS