Tests of MVD prototype pad detector with a β- source

Sang Yeol Kim, Young Gook Kim, Sang Su Ryu, Ju Hwan Kang, Simon-Gillo Jehanne Simon-Gillo, John P. Sullivan, Hubert W. Van Heck, Guanghua Xu

Research output: Contribution to journalArticlepeer-review


The MVD group has been testing two versions of silicon pad detectors. One design uses a single metal layer for readout trace routing. The second type uses two layers of metal, allowing for greatly simplified signal routing. However, because the readout traces for the pads pass over the other pads in the same column (separated by an oxide layer), the double-metal design introduces crosstalk into the system. A simple test stand using a 90Sr β- source with scintillator triggers was made to estimate the crosstalk. The crosstalk between pads in the same column of the pad detector was 1.6-3.1%. The values measured between pads in different columns were very close to zero. The measured crosstalk was below our maximum allowed value of 7.8%.

Original languageEnglish
Pages (from-to)198-209
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - 1999 Jul

Bibliographical note

Funding Information:
This work was performed at Los Alamos National Laboratory and supported in part by the Korea Research Foundation (1997-001-D00118). The MVD project is supported by the United States Department of Energy.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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