Observation of orbital angular momentum transfer between acoustic and optical vortices in optical fiber PZ Dashti, F Alhassen, HP Lee
Physical review letters 96 (4), 043604, 2006
240 2006 Measurement of absolute myocardial blood flow in humans using dynamic cardiac SPECT and 99m Tc-tetrofosmin: Method and validation U Shrestha, M Sciammarella, F Alhassen, Y Yeghiazarians, J Ellin, ...
Journal of Nuclear Cardiology 24, 268-277, 2017
53 2017 Energy resolved X-ray grating interferometry T Thuering, WC Barber, Y Seo, F Alhassen, JS Iwanczyk, M Stampanoni
Applied Physics Letters 102 (19), 2013
30 2013 A highly efficient thermally controlled loss-tunable long-period fiber grating on corrugated metal substrate E Wu, RC Yang, KC San, CH Lin, F Alhassen, HP Lee
IEEE photonics technology letters 17 (3), 612-614, 2005
19 2005 Myocardial blood flow measurement with a conventional dual-head SPECT/CT with spatiotemporal iterative reconstructions-a clinical feasibility study F Alhassen, N Nguyen, S Bains, RG Gould, Y Seo, SL Bacharach, X Song, ...
American journal of nuclear medicine and molecular imaging 4 (1), 53, 2014
18 2014 Fabrication and Mode Identification of Compact Long-Period Gratings Written by CO Laser HM Chan, F Alhassen, IV Tomov, HP Lee
IEEE Photonics Technology Letters 20 (8), 611-613, 2008
13 2008 Ultrafast multipinhole single photon emission computed tomography iterative reconstruction using CUDA F Alhassen, S Kim, GA Sayre, JD Bowen, R Gould, Y Seo, H Kudrolli, ...
2011 IEEE Nuclear Science Symposium Conference Record, 2558-2559, 2011
10 2011 A compact all-fiber LPG-AOTF frequency shifter on single-mode fiber and its application to vibration measurement HM Chan, R Huang, F Alhassen, O Finch, IV Tomov, CS Park, HP Lee
IEEE Photonics Technology Letters 20 (18), 1572-1574, 2008
10 2008 Phantom experiments on a PSAPD-based compact gamma camera with submillimeter spatial resolution for small animal SPECT S Kim, M McClish, F Alhassen, Y Seo, KS Shah, RG Gould
IEEE transactions on nuclear science 57 (5), 2518-2523, 2010
9 2010 Acoustooptic coherent mode coupling in polarization-maintaining fiber and its application as a variable-polarization-dependent loss element R Huang, F Alhassen, D Tseng, O Boyraz, HP Lee
IEEE Photonics Technology Letters 19 (9), 665-667, 2007
8 2007 Parallelization of iterative reconstruction algorithms in multiple modalities D Mitra, H Pan, F Alhassen, Y Seo
2014 Ieee Nuclear Science Symposium and Medical Imaging Conference (Nss/Mic …, 2014
7 2014 Depth-of-interaction compensation using a focused-cut scintillator for a pinhole gamma camera F Alhassen, H Kudrolli, B Singh, S Kim, Y Seo, RG Gould, VV Nagarkar
IEEE transactions on nuclear science 58 (3), 634-638, 2011
7 2011 Temperature dependent operation of PSAPD-based compact gamma camera for SPECT imaging S Kim, M McClish, F Alhassen, Y Seo, KS Shah, RG Gould
IEEE transactions on nuclear science 58 (5), 2169-2174, 2011
6 2011 Ultra-compact long-period fiber grating and grating pair fabrication using a modulation-scanned CO2 laser HM Chan, E Perez, F Alhassen, IV Tomov, HP Lee
National Fiber Optic Engineers Conference, JWA5, 2007
6 2007 All-fiber acousto-optic polarization monitor F Alhassen, MR Boss, R Huang, HP Lee, PZ Dashti
Optics letters 32 (7), 841-843, 2007
4 2007 Techniques to capture and edit dynamic depth images M Leung, S Perry, F Alhassen, A Stephens, N Wadhwa
US Patent 11,949,848, 2024
3 2024 Reconstruction of gated dynamic cardiac SPECT data using spatiotemporal basis functions U Shrestha, F Alhassen, Y Seo, EH Botvinick, GT Gullberg
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record …, 2012
3 2012 SPECT/CT in der Nuklearkardiologischen Bildgebung A Todica, S Lehner
Der Nuklearmediziner 40 (01), 54-63, 2017
2 2017 A compact all-fiber PDL-compensated acoustooptic wavelength monitor F Alhassen, PZ Dashti, HP Lee, Q Li, CS Kim
IEEE photonics technology letters 17 (10), 2131-2133, 2005
2 2005 Energy response of a room-temperature cadmium telluride (CdTe) photon-counting detector for simultaneous and sequential CT and SPECT S Huang, F Alhassen, AM Hernandez, RG Gould, Y Seo, WC Barber, ...
2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record …, 2012
1 2012