کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8169522 | 1526302 | 2016 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of the barium daughter in 136Xe â136Ba+2eâ by in situ single-molecule fluorescence imaging
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection of the barium daughter in 136Xe â136Ba+2eâ by in situ single-molecule fluorescence imaging Detection of the barium daughter in 136Xe â136Ba+2eâ by in situ single-molecule fluorescence imaging](/preview/png/8169522.png)
چکیده انگلیسی
A robust technique for rejection of all γ-ray induced backgrounds in the search for the decay 136Xeâ136Ba+2eâ is needed to proceed to ton-scale detection systems. Efficient detection of the barium daughter would provide a long-sought pathway toward this goal. Single-molecule fluorescent imaging may offer a new way to detect the barium daughter atom in a naturally ionized state. A doubly charged barium ion can initiate a chelation process with a non-fluorescent precursor molecule, leading to a highly fluorescent complex. Repeated photo-excitation of the complex can reveal both presence and location of a single ionized atom with high precision and selectivity. Detection would be automatic, and is accomplished within the active volume of a xenon gas Time Projection Chamber operating at high pressure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 824, 11 July 2016, Pages 2-5
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 824, 11 July 2016, Pages 2-5
نویسندگان
David R. Nygren,