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 |
Fingerprint
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
Cite this
Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. / Ullom, J. N.; Frank, Matthias; Horn, J. M.; Labov, S. E.; Langry, K.; Benner, W. H.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 444, No. 1, 07.04.2000, p. 385-388.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry
AU - Ullom, J. N.
AU - Frank, Matthias
AU - Horn, J. M.
AU - Labov, S. E.
AU - Langry, K.
AU - Benner, W. H.
PY - 2000/4/7
Y1 - 2000/4/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0033743462&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033743462&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(99)01411-4
DO - 10.1016/S0168-9002(99)01411-4
M3 - Conference article
VL - 444
SP - 385
EP - 388
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1
ER -