CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Ernst Ruska-Centre

Open-knowledge reference entry

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionApr 14, 2026
Entity authorityQ5395128 ↗
Source-derived summary

The Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C) is an institute located on the campus of Forschungszentrum Jülich belonging to the Helmholtz Association of German Research Centres. It comprises three divisions: “Physics of Nanoscale systems”, “Materials Science and Technology” and “Structural Biology”.

The ER-C's main purposes are fundamental research in electron microscopy, focusing on method development and applications of high-resolution transmission electron microscopy (HRTEM) and scanning-transmission electron microscopy (STEM) in physics, chemistry and biology.

History

As a competence platform, the ER-C was founded on 27 January 2004 through a contract signed by the chairman of Forschungszentrum Jülich Joachim Treusch and the rector of RWTH Aachen University Burkhard Rauhut. It was inaugurated on 18 May 2006 in the presence of members of the Ernst Ruska family, as well as representatives of the international electron microscopy community. On 1 January 2017, the ER-C attained the status of an independent scientific institute in Forschungszentrum Jülich. The ER-C is presently expanding further within the framework of the Research Infrastructure Roadmap of the German Federal Ministry of Education and Research (BMBF) under the designation ER-C 2.0. The ER-C thus creates incentives for companies dealing with novel materials and technologies to settle in the Rhenish mining area and contribute to the development of a competence region for innovative materials technologies and ultimately to the success of structural change.

Instrumental resources

The ER-C develops new methods and technologies in the field of electron microscopy, with a special focus on ultra-high-resolution techniques to study solid state materials, soft materials and biological systems. The ER-C houses conventional and state-of-the-art electron microscopes, ranging from standard scanning electron microscopes to highly-specialised aberration corrected instruments offering sub-Å resolution imaging and spectroscopy, as well as quantitative measurements of electromagnetic field distributions using phase contrast techniques that include off-axis electron holography and 4D STEM. The ER-C currently operates seven aberration-corrected instruments.

Editorial summary

“Ernst Ruska-Centre” enters the record as open-knowledge reference entry. Crown Archives preserves that source wording while asking what Ernst, Ruska-Centre and Open-knowledge can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—2004, 2006, 2017—that can be checked directly. The linked authority record independently contributes the date 2004. Its strongest next move is a source search built around Ernst, Ruska-Centre and Open-knowledge.
Editorial analysis

Why this record matters

“Ernst Ruska-Centre” is worth following because a concise public description often conceals a longer documentary argument. Here, Ernst, Ruska-Centre and Open-knowledge provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 14, 2026. The linked authority identifier is Q5395128. Authority coordinates are 50.908, 6.414. 1 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2004, 2006 and 2017.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Ernst Ruska-Centre”, its source revision and the description used here.
  2. Expand the search: follow Ernst Ruska-Centre primary sources, Ernst Ruska-Centre archive and Ernst research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Ernst Ruska-Centre”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Ernst Ruska-Centre” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.