A simplified digital positron lifetime spectrometer based on a fast digital oscilloscope
A simplified digital positron lifetime spectrometer based on a fast digital oscilloscope
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基于快速数字示波器的简化数字正电子寿命谱仪
DOI:
10.1016/j.nima.2010.10.005
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Li Hui,ShaoYundong,ZhouKai,PangJingbiao,WangZhu
中科院分区:
文献类型:
--
作者:
Li Hui,ShaoYundong,ZhouKai,PangJingbiao,WangZhu
A simplified digital positron lifetime spectrometer is presented and tested. This system is only composed of two scintillation detectors, a time delayer and a digital oscilloscope. Both online and offline analysis of the detector signals can be optionally chosen to construct positron lifetime spectrum by histogramming the time difference between the positron birth signal of 1.27MeV γ-ray and one positron annihilation signal of 0.511MeV γ-rays. Several pulse discrimination methods and timing numerical algorithms are proposed and well applied to perform pulse energy discrimination and digital constant fraction timing (DCFT). A combination discrimination of pulse amplitude, pulse risetime and ratio of pulse area to pulse amplitude with DCFT is found able to achieve the best time resolution of 208ps full-width at half-maximum (FWHM), which is much better over the analog spectrometer using the same detectors. This newly developed apparatus except for having better performance is particularly easy to be constructed and implemented.
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DOI:
10.1016/j.nima.2007.07.035
发表时间:
2007-10
影响因子:
1.4
作者:
D. Bosnar;Z. Kajcsos;L. Liszkay;L. Lohonyai;P. Major;S. Bosnar;C. Kosanović;B. Subotić
通讯作者:
D. Bosnar;Z. Kajcsos;L. Liszkay;L. Lohonyai;P. Major;S. Bosnar;C. Kosanović;B. Subotić
影响因子:
6.7
作者:
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通讯作者:
A. Krille;R. Krause-Rehberg;M. Jungmann;F. Bečvář;G. Brauer
DOI:
10.1002/pssc.200675816
发表时间:
2006-12
期刊:
Physica Status Solidi (c)
影响因子:
--
作者:
M. Jardin;A. Almazouzi;M. Lambrecht;A. Rempel;Y. Nagai;E. Walle
通讯作者:
M. Jardin;A. Almazouzi;M. Lambrecht;A. Rempel;Y. Nagai;E. Walle
DOI:
10.1016/j.nimb.2007.07.015
发表时间:
2007-11
影响因子:
1.3
作者:
N. Djourelov;N. Charvin;C. Bas;J. Viret;V. Samoylenko;D. Sillou
通讯作者:
N. Djourelov;N. Charvin;C. Bas;J. Viret;V. Samoylenko;D. Sillou
DOI:
10.1007/978-3-662-03893-2
发表时间:
1999
期刊:
--
影响因子:
--
作者:
R. Krause-Rehberg;H. Leipner
通讯作者:
R. Krause-Rehberg;H. Leipner