Scholarlink

<p>For the first time, a method for fabricating a perforated metallised structure based on polyurethane has been implemented for the development of amplifying elements in a well-type gas electron multiplier (<i>GEM</i>). The structure was fabricated by additive manufacturing with further laser drilling for perforation, and subsequent metallisation with chromium (Cr) layer by magnetron sputtering. Scanning electron microscopy (<i>SEM</i>) confirmed the presence of an ordered array of holes in the fabricated perforated structures. Cross-sectional <i>SEM</i> analysis revealed a truncated conical shape of the drilled holes with an apex angle of 78°, with average diameters of 300±30 <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\mu\)</EquationSource> </InlineEquation>m (metallised side) and 200±20 <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\mu\)</EquationSource> </InlineEquation>m (back side). Chromium sputtering onto the surface of perforated plate shows its insufficient deposition on the inner surfaces of the holes. The metallised perforated plate, tested as a well-type <i>GEM</i> amplifying element at <i>E</i> = 23.4–24 kV/cm, showed <i>G</i> = 1.3<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\cdot\)</EquationSource> </InlineEquation>&#xa0;10<sup>4</sup>. It is shown that combination of additive and laser technologies is prospective for production of amplifying elements of gas-discharge detectors for <i>NICA</i> (<i>Joint institute for nuclear research, Russia</i>), <i>LHC</i> (<i>CERN</i>, Switzerland, France), and similar experiments empowering particle physics and detector engineering teams with advance instrumentations.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Laser micro-drilling of polymer plates for advanced GEM amplifying elements

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月28日

查看全文
  • Yahor Shmanay,
  • Julia Fedotova,
  • Yauheny Mitskevich,
  • Ilya Zur,
  • Andrey Kharchanka,
  • Sergey Movchan,
  • Dzmitriy Kotsikau

摘要

For the first time, a method for fabricating a perforated metallised structure based on polyurethane has been implemented for the development of amplifying elements in a well-type gas electron multiplier (GEM). The structure was fabricated by additive manufacturing with further laser drilling for perforation, and subsequent metallisation with chromium (Cr) layer by magnetron sputtering. Scanning electron microscopy (SEM) confirmed the presence of an ordered array of holes in the fabricated perforated structures. Cross-sectional SEM analysis revealed a truncated conical shape of the drilled holes with an apex angle of 78°, with average diameters of 300±30 \(\mu\) m (metallised side) and 200±20 \(\mu\) m (back side). Chromium sputtering onto the surface of perforated plate shows its insufficient deposition on the inner surfaces of the holes. The metallised perforated plate, tested as a well-type GEM amplifying element at E = 23.4–24 kV/cm, showed G = 1.3 \(\cdot\)  104. It is shown that combination of additive and laser technologies is prospective for production of amplifying elements of gas-discharge detectors for NICA (Joint institute for nuclear research, Russia), LHC (CERN, Switzerland, France), and similar experiments empowering particle physics and detector engineering teams with advance instrumentations.