Degradation of charge sharing after neutron irradiation in strip silicon detectors with different geometries
Degradation of charge sharing after neutron irradiation in strip silicon detectors with different geometries
复制标题
不同几何形状的带状硅探测器中子辐照后电荷共享的退化
DOI:
10.1016/j.nima.2013.05.158
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Casse G
中科院分区:
文献类型:
--
作者:
Casse G
The aim of the CERN/RD50 collaboration is the improvement of the radiation tolerance of semiconductor detectors for future experiments at high-luminosity colliders. In the RD50 framework, evidence of enhanced signal charge in severely irradiated silicon detectors (diodes, segmented planar and 3D devices) was found. The underlying mechanism was labelled charge multiplication. This has been one of the most exciting results from the research activity of RD50 because it could allow for a greatly extended radiation tolerance, if the mechanism is to be found controllable and tuneable. The charge multiplication mechanism is governed by impact ionisation from electrons drifting in high electric field. The electric field profile is influenced by the geometry of the implanted electrodes. In order to investigate the influence of the diode implantation geometry on charge multiplication, the RD50 collaboration has commissioned the production of miniature microstrip silicon sensors with various choices of strip pitch and strip width over pitch (w/p) ratios. Moreover, some of the sensors were produced interleaving readout strips with dummy intermediate ones in order to modify the electric field profile. These geometrical solutions can influence both charge multiplication and charge sharing between adjacent strips. The initial results of this study are here presented.
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DOI:
10.1016/0029-554x(81)91192-7
发表时间:
1981
期刊:
Nuclear Instruments and Methods in Physics Research
影响因子:
--
作者:
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通讯作者:
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DOI:
10.2172/1170535
发表时间:
2013
影响因子:
1.4
作者:
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通讯作者:
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影响因子:
1.8
作者:
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通讯作者:
M. Wormald
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1016/j.nima.2003.11.015
发表时间:
2004-02-01
影响因子:
1.4
作者:
Casse, G;Allport, PP;Turner, PR
通讯作者:
Turner, PR