A compact and cost-effective laser desorption source for molecular beam generation: comparison with simulations
A compact and cost-effective laser desorption source for molecular beam generation: comparison with simulations
复制标题
用于分子束生成的紧凑且经济有效的激光解吸源:与模拟的比较
DOI:
10.1088/1361-6455/ac259b
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Bar, Ilana
中科院分区:
文献类型:
--
作者:
Shachar, Afik;Kallos, Itai;de Vries, Mattanjah S;Bar, Ilana
The development of laser-desorption jet-cooling has enabled the study of low vapor pressure molecules in the gas phase. Here, we design and assemble a unique compact laser-desorption source comprising simple parts for sample movement and desorption and attach it to a home-built time-of-flight mass spectrometer for spectroscopic studies of jet-cooled biomolecules. Modeling and visualization of the molecular beam (MB) by the direct simulation Monte Carlo method provides spatial evolution and global features of the flow and new insights into source operation. The system is validated by determining operational parameters from the simulation and comparing them with the resulting resonance-enhanced two-photon ionization (R2PI) signal of tryptamine. The signal measurements in the origin band transitions region provide an R2PI spectrum resembling that previously acquired from heated samples, indicating seven conformers in the MB. Due to the potential of this source, we expect that it will reveal its feasibility through coupling to other systems and various spectroscopies.
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DOI:
10.1007/978-3-319-05987-7
发表时间:
2014
期刊:
The Review of scientific instruments
影响因子:
--
作者:
V. Veiko;T. Vartanyan
通讯作者:
T. Vartanyan
影响因子:
4.4
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DOI:
10.1021/j100412a009
发表时间:
1986
期刊:
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影响因子:
--
作者:
L. Philips;D. Levy
通讯作者:
D. Levy
DOI:
--
发表时间:
2017
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
--
作者:
A. Shachar;Nitzan Mayorkas;I. Bar
通讯作者:
I. Bar
影响因子:
15
作者:
Nir, E;Imhof, P;de Vries, MS
通讯作者:
de Vries, MS