Abstract
We present time-of-flight measurements of biological material ejected from bacterial spores following laser irradiation. Ion impacts are registered on a microchannel plate detector and on a Superconducting Tunnel Junction (STJ) detector. We compare mass spectra obtained with the two detectors. The STJ has better sensitivity to massive ions and also measures the energy of each ion. We show evidence that spores of different bacillus species produce distinctive mass spectra and associate the observed mass peaks with coat proteins.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 385-388 |
| Number of pages | 4 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 444 |
| Issue number | 1 |
| DOIs | |
| State | Published - Apr 7 2000 |
| Externally published | Yes |
| Event | 8th International Workshop on Low Temperature Detectors (LTD-8) - Dalfsen, Neth Duration: Aug 15 1999 → Aug 20 1999 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
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Cite this
Ullom, J. N., Frank, M., Horn, J. M., Labov, S. E., Langry, K., & Benner, W. H. (2000). Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 444(1), 385-388. https://doi.org/10.1016/S0168-9002(99)01411-4