Charged Ice Particle Beams with Selected Narrow Mass and Kinetic Energy Distributions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F23%3A00570975" target="_blank" >RIV/61388955:_____/23:00570975 - isvavai.cz</a>

Result on the web

<a href="https://hdl.handle.net/11104/0342303" target="_blank" >https://hdl.handle.net/11104/0342303</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jasms.2c00357" target="_blank" >10.1021/jasms.2c00357</a>

Result language

angličtina

Original language name

Charged Ice Particle Beams with Selected Narrow Mass and Kinetic Energy Distributions

Original language description

Small ice particles play an important role in atmospheric and extraterrestrial chemistry. Circumplanetary ice particles that are encountered by space probes at hypervelocities play a critical role in the determination of surface and subsurface properties of their source bodies. Here we present an apparatus for the generation of low-intensity beams of single mass-selected charged ice particles under vacuum. They are produced via electrospray ionization of water at atmospheric pressure and undergo evaporative cooling when transferred to vacuum through an atmospheric vacuum interface. m/z selection is achieved through two subsequent quadrupole mass filters operated in the variable-frequency mode within a range of m/z values between 8 × 104 and 3 × 107. Velocity and charge of the selected particles are measured using a nondestructive single-pass image charge detector. From the known electrostatic acceleration potentials and settings of the quadrupoles the particle masses could be obtained and be accurately controlled. It has been shown that the droplets are frozen within the transit time of the apparatus such that ice particles are present after the quadrupole stages and finally detected. The demonstrated correspondence between particle mass and specific quadrupole potentials in this device allows preparation of beams of single particles with a repetition rate between 0.1 and 1 Hz with various diameter distributions from 50 to 1000 nm at 30-250 eV of kinetic energy per charge. This corresponds to velocities and particle masses quickly available between 600 m/s (80 nm) and 50 m/s (900 nm) and particle charge numbers (positive) between 103 and 104[e], depending upon size.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GC21-11931J" target="_blank" >GC21-11931J: High resolution mass spectrometry laboratory experiments for the analysis of past and future space data.</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the American Society for Mass Spectrometry

ISSN

1044-0305

e-ISSN

1879-1123

Volume of the periodical

34

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

878-892

UT code for WoS article

000968080900001

EID of the result in the Scopus database

2-s2.0-85152212495