@Article{Ullan_etal2014,
author="Ullan, M.
and Benitez, V.
and Quirion, D.
and Zabala, M.
and Pellegrini, G.
and Lozano, M.
and Lacasta, C.
and Soldevila, U.
and Garcia, C.
and Fadeyev, V.
and Wortman, J.
and DeFilippis, J.
and Shumko, M.
and Grillo, A. A.
and Sadrozinski, H. F. W.",
title="Low-resistance strip sensors for beam-loss event protection",
journal="Nuclear Instruments {\&} Methods in Physics Research A",
year="2014",
publisher="Elsevier Science Bv",
volume="765",
pages="252--257",
optkeywords="Silicon radiation detectors; Strip sensors; Punch through protection; Beam loss; HL-LHC; ATLAS Upgrade",
abstract="AC coupled silicon strip sensors can be damaged in case of a beam loss due to the possibility of a large charge accumulation in the bulk, developing very high voltages across the coupling capacitors which can destroy them. Punch-through structures are currently used to avoid this problem helping to evacuate the accumulated charge as large voltages are developing. Nevertheless, previous experiments, performed with laser pulses, have shown that these structures can become ineffective in relatively long strips. The large value of the implant resistance can effectively isolate the {\textquoteleft}{\textquoteleft}far{\textquoteright}{\textquoteright} end of the strip from the punchthrough structure leading to large voltages. We present here our developments to fabricate lowresistance strip sensors to avoid this problem. The deposition of a conducting material in contact with the implants drastically reduces the strip resistance, assuring the effectiveness of the punch-through structures. First devices have been fabricated with this new technology. Initial results with laser tests show the expected reduction in peak voltages on the low resistivity implants. Other aspects of the sensor performance, including the signal formation, are not affected by the new technology.",
optnote="WOS:000344621000048",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2003), last updated on Thu, 11 Dec 2014 12:46:18 +0000",
issn="0168-9002",
doi="10.1016/j.nima.2014.05.089",
opturl="https://doi.org/10.1016/j.nima.2014.05.089",
language="English"
}