Development of a liquid-helium free cryogenic sample holder with mK temperature control for autonomous electron microscopy
Journal Article
·
· Ultramicroscopy
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Euclid Techlabs LLC, Bolingbrook, IL (United States)
The automated and autonomous cryogenic transmission electron microscopy (Cryo-EM) demands a sample holder capable of maintaining temperatures below 10 K with precise control, long holding times, and minimal helium use. Rising to this challenge, we initiated an ambitious project to develop a novel closed-cycle cryocooler-based cryogenic sample holder that operates without the use of liquid helium and the consumption of gaseous helium. Here, this article presents the design, construction, and experimental testing of the initial prototype, which achieves an ultimate temperature of 5.6 K with exceptional stability close to 1mK, while providing a wide temperature control range from 295 K to 5.6 K, marking a clear advancement in cryo-EM holder development. While the prototype was not designed for atomic resolution imaging and thus lacks a sturdy support system to mitigate mechanical vibrations from the cryocooler's pulsed tube, this innovative approach successfully demonstrates proof of concept. It offers unprecedented capabilities for state-of-the-art cryogenic microscopy and microanalysis in materials and biological sciences.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 2566987
- Report Number(s):
- BNL--228185-2025-JAAM
- Journal Information:
- Ultramicroscopy, Journal Name: Ultramicroscopy Vol. 267; ISSN 0304-3991
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cryogenically cooled multiple-substrate holder for high vacuum
Shock compression of liquid helium and helium-hydrogen mixtures : development of a cryogenic capability for shock compression of liquid helium on Z, final report for LDRD Project 141536.
A sample holder for simultaneous Raman and neutron vibrational spectroscopy
Journal Article
·
Wed Nov 30 23:00:00 EST 1994
· Review of Scientific Instruments; (United States)
·
OSTI ID:7068292
Shock compression of liquid helium and helium-hydrogen mixtures : development of a cryogenic capability for shock compression of liquid helium on Z, final report for LDRD Project 141536.
Technical Report
·
Fri Oct 01 00:00:00 EDT 2010
·
OSTI ID:992780
A sample holder for simultaneous Raman and neutron vibrational spectroscopy
Journal Article
·
Tue Jan 23 19:00:00 EST 2018
· Review of Scientific Instruments
·
OSTI ID:1856726