Evaluation of a pre-cell hit detector for the future single ion hit facility in Lund

Summary, in English

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%.

• Author: Charlotta Nilsson; Jan Pallon; Goran Thungstrom; Natalia Arteaga; Vaida Auzelyte; Mikael Elfman; Per Kristiansson; Christer Nilsson; Marie Wegdén
• Department/s: Nuclear physics
• Publishing year: 2006
• Language: English
• Pages: 924-927
• Publication/Series: Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
• Volume: 249
• Issue: 1-2
• Links: http://dx.doi.org/10.1016/j.nimb.2006.03.165
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics
• Keywords: SIHF; Delta E detector; thin silicon detector; single ions; single cells
• Status: Published
• Research group: Nuclear Microprobe
• ISBN/ISSN/Other: ISSN: 0168-583X