Journal article
Evaluation of a pre-cell hit detector for the future single ion hit facility in Lund
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Author list: Thungström, Göran
Publication year: 2006
Start page: 924
End page: 927
Number of pages: 4
ISSN: 0168-583X
DOI: http://dx.doi.org/10.1016/j.nimb.2006.03.165
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Abstract
Currently, a single ion hit facility, for irradiation of single cells with single, light MeV ions is under development at the Lund Nuclear Microprobe. In this paper, a novel approach to the ion detection issue is presented. A silicon detector, a type utilized at other facilities for post-cell ion detection, has been investigated as a possible option for pre-cell hit detection. If proven successful, this detector could possibly also be used simultaneously as vacuum window. The first experiments carried out on the 9 mu m thick silicon detector, with an area of 4 mm(2), have been aimed at investigations of signal-to-noise ratio and efficiency. The results thus far reveal a low noise level and a noise distribution, which is well separated from the signal peak. However, the efficiency remains a problem, since at present it is far from the required 100%.
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