Digitized positron lifetime spectrometer for the simultaneous recording of time and energy information
Digitized positron lifetime spectrometer for the simultaneous recording of time and energy information
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DOI：
10.1016/j.nima.2007.07.035
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发表时间：
2007-10
影响因子：
1.4
通讯作者：
D. Bosnar;Z. Kajcsos;L. Liszkay;L. Lohonyai;P. Major;S. Bosnar;C. Kosanović;B. Subotić
中科院分区：
文献类型：
--
作者：
D. Bosnar;Z. Kajcsos;L. Liszkay;L. Lohonyai;P. Major;S. Bosnar;C. Kosanović;B. Subotić
到目前为止，正电子湮没（PA）技术已成为常规使用的核技术，其应用范围从材料的结构研究到生物样品和正电子发射断层扫描（PET）中的医学应用。目前，PA光谱学和PET都可以从快速符合技术的改进中受益，研究了全数字化正电子寿命谱仪（具有完整的事件存储能力，可以同时记录γ射线的时间和能量信息）与采用快速模拟核电子学的传统装置相比可以提供多大的优势。额外的信息允许离线分析，这可能是特别有用的，在分离各种湮没通道，如正电子素的贡献，最近认识到提供一个新的“观察窗口”。
Positron annihilation (PA) techniques became, by now, routinely used nuclear techniques with applications which range from structural investigations of materials to biological samples and medical applications in positron emission tomography (PET). As at present, both PA spectroscopy and PET could profit from an improvement in the fast coincidence technique, it was investigated how far a fully digitized positron lifetime spectrometer (with full event storage capability for the simultaneous recording of time and energy information of the γ-rays) could offer advantages over a conventional setup employing fast analogue nuclear electronics. The additional information allows off-line analysis which could be particularly useful in separating various annihilation channels, like the positronium contribution, recently recognized to offer a new “window of observation”.