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A Tunable collimator for precision irradiation with ion microbeams

Amorini, Francesca and Cardella, Giuseppe and Pappalardo, A. and Piscopo, Amalia and Sipala, Valeria and Finocchiaro, Paolo (2008) A Tunable collimator for precision irradiation with ion microbeams. Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, Vol. 266 (14), p. 3325-3329. ISSN 0168-583X. eISSN 1872-9584. Article.

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DOI: 10.1016/j.nimb.2008.04.008

Abstract

We describe a cheap yet effective beam collimation system capable of providing square apertures from 1 mm down to about 10 μm. The tunable part is driven by two manual micrometers, one controlling the shape the other the size, which could be immediately replaced by high precision stepping motors should remote control be needed. The aperture was calibrated by means of a simple home-made laser diffraction system which allows a considerable precision. The collimation system was used to produce low-divergence beams of oxygen and protons, in order to test the position sensitivity of a silicon microstrip telescope detector.

Item Type:Article
ID Code:9614
Status:Published
Refereed:Yes
Uncontrolled Keywords:Microbeam, collimation, low-divergence, laser diffraction calibration
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:North Holland / Elsevier Science
ISSN:0168-583X
eISSN:1872-9584
Deposited On:12 Feb 2014 09:49

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