Karya
Judul/Title Sub ppb CO Gas Measurement Using a Non Invasive QCL Laser Absorption Spectrometer Technique
Penulis/Author Restu Widiatmono (1) ; Julien Mandon (2); Frans J.M. Harren (3); Prof. Dr. Kusminarto (4); Dr. Moh. Ali Joko Wasono, M.S. (5); Prof. Dr. Mitrayana, S.Si., M.Si. (6)
Tanggal/Date 2 2015
Kata Kunci/Keyword
Abstrak/Abstract A sensitive gas detection system using a distributed feedback CW Quantum Cascade Laser (QCL) centered at 4610 nm as a radiation source has been developed. The QCL was used in combination with off-axis integrated cavity output spectroscopy (ICOS) for Carbon Monoxide (CO) gas detection at low gas pressures. A high-finesse 15 cm long cavity with an effective optical path length of 400 m has been used as a sample gas cell. We demonstrated detection limit of 1 ppbv with less than 2 second averaging time with a minimum detection limit of 0.4 ppbv for 128 s acquisition time. The results show that the QCL based ICOS detection system proved to be suitable for monitoring trace gas levels of CO with sub-ppb sensitivity.
Rumpun Ilmu Fisika
Bahasa Asli/Original Language English
Level Internasional
Status
Dokumen Karya
No Judul Tipe Dokumen Aksi
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