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Report No.

NV centers in diamond used for detection of single ion track

Haruyama, Moriyoshi; Onoda, Shinobu; Kada, Wataru*; Teraji, Tokuyuki*; Isoya, Junichi*; Oshima, Takeshi; Hanaizumi, Osamu*

We propose that diamond can be utilized as a new Fluorescent Nuclear Track Detector (FNTD) material. For this aim, we focus on Nitrogen Vacancy (NV) centers in diamond. One of the most important features of a NV center is a high emission rate, which enable us to observe single NV center. After high energy ion irradiation and subsequent annealing, we successfully observe Os ion tracks in various diamonds containing dense nitrogen impurity. However, Os ion track cannot be observed from diamond without nitrogen impurity. We found that the optimization of nitrogen impurity is a key issue for developing high sensitive FNTD based on diamond.



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