In 1987 a collaboration including ETHZ - UZH - PSI - RWTH Aachen - Univ. Tbilisi proposed a new search for μe conversion in muonic atoms. The SINDRUM II spectrometer came into operation in the PSI μE1 area in 1989, but a dedicated beam line was delayed until 1998 by technical setbacks.

中文翻译：

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辛德鲁姆二世

1987 年合作包括 ETHZ - UZH - PSI - RWTH Aachen - Univ。第比利斯提出了对 μe 转换在 μ 子原子中的新搜索。SINDRUM II 光谱仪于 1989 年在 PSI μE1 领域投入使用，但由于技术挫折，专用光束线被推迟到 1998 年。