First 'perovskite camera' can see inside the human body
(news.northwestern.edu)45 points by geox 4 days ago
45 points by geox 4 days ago
From this, it sounds like it hasn't been integrated into an imaging device yet:
"Record energy resolutions are achieved as 2.5% at 141 keV and 1.0% at 662 keV. Single photon imaging with single point and line 99mTc γ-ray sources showcases the high sensitivity of 0.13%~0.21% cps/Bq. Phantom imaging distinctly delineates individual column sources spaced 7 mm apart, indicative of an impressive spatial resolution of 3.2 mm. These findings lay the groundwork for integrating perovskite detectors into nuclear medicine γ-ray imaging systems, offering a balance of cost-effectiveness and superior performance."
Perovskites are research materials being researched.
Images produced from SPECT cameras have been around for a while. [2]
This is potentially a 16 pixel "camera" which the "image" is a gaussian blob (Figure 1e and 5e) [1].
This is interesting for a variety of reasons but is way overblown in the "camera" or "image" context. It's demonstration that one can make pixelated devices (4x4) of a specific kind of promising material.
[1]https://www.nature.com/articles/s41467-025-63400-7
[2]https://en.wikipedia.org/wiki/Single-photon_emission_compute...
Ah, that's what it was for me.
Roll-to-roll fabricated perovskite solar cells under ambient room conditions: https://news.ycombinator.com/item?id=39998740
https://pubs.rsc.org/en/content/articlehtml/2024/tc/d4tc0208...
IIRC it was some different type of imaging sensor, so looked it up that way
They are used in thin-film solar panel development. Not sure anyone has cracked the big problem with them, which is durability.
"While cheaper than CZT detectors, NaI detectors are bulky and produce blurrier images — like taking a photo through a foggy window."
I'm constantly amazed at what these articles do not show. Like if we have an example of a foggy window image and one from CZT and now one from this new sensor, why not show an example of each? A picture is worth a 1,000 words after all, so not including them really does the reader a disservice when reading these articles.