Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Observation of short wavelength infrared (SWIR) Cherenkov emission

Abstract

Cherenkov emission induced by external beam radiation from a clinical linear accelerator has been shown in preclinical molecular imaging and clinical imaging. The broad spectrum Cherenkov emission should have a short wavelength infrared (SWIR, 1000–1700 nm) component, as predicted theoretically. To the best of our knowledge, this Letter is the first experimental observation of this SWIR Cherenkov emission induced by external beam radiation. The measured spectrum of SWIR Cherenkov emission matches the theoretical prediction, with a fluence rate near one-third of the visible and near-infrared red emissions (Vis-NIR, 400–900 nm). Imaging in water-based phantoms and biological tissues indicates that there is a sufficient fluence rate for radiotherapy dosimetry applications. The spatial resolution is improved approximately 5.3 times with SWIR Cherenkov emission detection versus Vis-NIR Cherenkov emission, which provides some improvement in the potential for higher resolution Cherenkov emission dosimetry and molecular sensing during clinical radiotherapy by imaging with SWIR wavelengths.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Single pixel hyperspectral Cherenkov-excited fluorescence imaging with LINAC X-ray sheet scanning and spectral unmixing

Xu Cao, Shudong Jiang, Jason R. Gunn, Petr Bruza, and Brian W. Pogue
Opt. Lett. 45(22) 6130-6133 (2020)

Imaging Cherenkov photon emissions in radiotherapy with a Geiger-mode gated quanta image sensor

P. Brůža, A. Pétusseau, S. Tisa, M. Jermyn, L. A. Jarvis, D. J. Gladstone, and B. W. Pogue
Opt. Lett. 44(18) 4546-4549 (2019)

Tomographic Cherenkov-excited luminescence scanned imaging with multiple pinhole beams recovered via back-projection reconstruction

Mengyu J. Jia, Xu Cao, Jason R. Gunn, Petr Bruza, Shudong Jiang, and Brian W. Pogue
Opt. Lett. 44(7) 1552-1555 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved