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ACEM Core by the numbers

July 2023 – October 2026 · Data updated as of October 23, 2026

Growth by fiscal year

FY24FY25FY26FY27 so far
Users10214124
Research groups8122315
Sessions72194584279
Instrument hours2506071,325732
Support requests452319

Fiscal year runs July – June. FY27 covers July 1 – October 23, 2026.

Instruments

  • 2,357 h Helios G4 UX FIB-SEM since July 2023
  • 543 h Spectra Ultra (S)TEM since February 2026

This fiscal year so far: 732 hours

Support beyond instrument time

  • 51 consultations and support requests since 2023
  • 4 new facility users onboarded since June 2026
  • 30 samples handled for users since June 2026
  • 173 h of staff time spent and planned since June 2026

Broader reach through events we host

142 participants from 33 outside organizations, in addition to Yale researchers.

EventDateParticipantsOutside organizations
EELS WorkshopMay 6, 20264922
Symposium on Advanced Electron MicroscopyAugust 13–14, 20269713

Outside participants by sector

How these numbers are counted

  • Instrument use comes from the core’s booking records (FOM until late 2025, PPMS since). A session counts only when instrument time was used.
  • Each person and research group is counted once across bookings, consultations and support requests.
  • Support requests come from the core’s consultation log and, before June 2026, from email records, so earlier years are a minimum.
  • Event figures are registrations. “13+” departments counts only research groups whose department is confirmed.

Data updated as of October 23, 2026.