Genre
- Journal Article
Photoacoustic (or more precisely, photothermoacoustic) signals are generated by the absorption of photons, expressed as acoustic waves, and can be related to the incident laser fluence rate. Here a calibration procedure for frequency domain (FD) photoacoustics is presented which utilizes the relationship between photoacoustic (PA) signal amplitude and laser fluence rate. The sample is irradiated with a continuous wave laser which is amplitude modulated at varying frequencies. Applying the calibration procedure to the PA detected signals, a linear relationship is obtained between the fluence rate and the signal amplitude.
[Spirou, G. M.] McMaster Univ, Dept Med Phys, Hamilton, ON, Canada. [Mandelis, A.] Univ Toronto, Dept Mech & Ind Engn, Ctr Adv Diffus Wave Technol, Toronto, ON, Canada. [Vitkin, I. A.; Whelan, W. M.] Univ Toronto, Dept Med Biophys, Toronto, ON, Canada. [Vitkin, I. A.] Univ Toronto, Princess Margaret Hosp, Univ Hlth Network, Div Biophys & Bioimaging,Ontario Canc Inst, Toronto, ON, Canada. [Vitkin, I. A.] Univ Toronto, Dept Radiat Oncol, Toronto, ON, Canada. [Whelan, W. M.] Ryerson Univ, Dept Phys, Toronto, ON, Canada.; Spirou, GM, McMaster Univ, Dept Med Phys, Hamilton, ON, Canada.
LES ULIS CEDEX A; 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
EDP SCIENCES S A
Language
- English