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Diamonds utilized in the development of single ion detector with high spatial resolution

高位置分解能の単一イオン検出器開発のためのダイヤモンド

小野田 忍; 山本 卓; 大島 武; 磯谷 順一*; 寺地 徳之*; 渡邊 賢司*

Onoda, Shinobu; Yamamoto, Takashi; Oshima, Takeshi; Isoya, Junichi*; Teraji, Tokuyuki*; Watanabe, Kenji*

To develop the single ion detection system with high spatial resolution, the ion induced luminescence was evaluated. By capturing the ion induced luminescence from a diamond by using Charge Coupled Device (CCD) Camera, the spot size and location of ion induced luminescence were evaluated. It was found that the full width at half maximum (FWHM) of spot is about 4 $$mu$$m. The position where ion hits the sample can be calculated from the center of mass of each spot. We performed the same experiment by using YAG which is proposed by previous studies. We found that the diamond is comparable to YAG from the point of view of spatial resolution. In addition, the intensity of luminescence from diamond was slightly higher than that from YAG. According to these results, we suggest that both diamond and YAG:Ce are suitable for single ion detection with high spatial resolution.

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