Multibeam healing for laser micromachining of scintillator arrays

Bipin Singh, Ravindra Akarapu, Hamid Sabet, Manton John Guers, Albert Eliot Segall, Vivek V. Nagarkar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Cost-effective, high-performance detectors are in high demand for use in positron emission tomography (PET) and other clinical and pre-clinical nuclear medicine imaging systems. Such detectors require high-resolution, high-sensitivity pixelated scintillator arrays. Scintillators with high stopping power, such as lutetium oxyorthosilicate (LSO) and lutetium-yttrium oxyorthosilicate (LYSO), are widely used in PET. However, the mechanical pixelation of such materials (especially to achieve <1x1 mm 2 pixels), yield issues, and their assembly into arrays is expensive and results in small fill factors (large inter-pixel gaps) and, hence, lower detector sensitivity than desired. Laser pixelation of scintillator material can potentially increase scintillator fill factor, resulting in higher sensitivity and yield and lower costs. We have adopted a multibeam laser micromachining approach to pixelate LSO with enhanced yield and improved throughput. The results of the experiments and the finite-element modeling are discussed here.

Original languageEnglish (US)
Title of host publication2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Pages3410-3413
Number of pages4
DOIs
StatePublished - 2012
Event2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
Duration: Oct 23 2011Oct 29 2011

Other

Other2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
CountrySpain
CityValencia
Period10/23/1110/29/11

Fingerprint

Microtechnology
laser machining
healing
Positron-Emission Tomography
scintillation counters
Lasers
Yttrium
Costs and Cost Analysis
lutetium
Clinical Medicine
Nuclear Medicine
positrons
detectors
tomography
pixels
costs
nuclear medicine
sensitivity
stopping power
yttrium

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Singh, B., Akarapu, R., Sabet, H., Guers, M. J., Segall, A. E., & Nagarkar, V. V. (2012). Multibeam healing for laser micromachining of scintillator arrays. In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 (pp. 3410-3413). [6152620] https://doi.org/10.1109/NSSMIC.2011.6152620
Singh, Bipin ; Akarapu, Ravindra ; Sabet, Hamid ; Guers, Manton John ; Segall, Albert Eliot ; Nagarkar, Vivek V. / Multibeam healing for laser micromachining of scintillator arrays. 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011. 2012. pp. 3410-3413
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Singh, B, Akarapu, R, Sabet, H, Guers, MJ, Segall, AE & Nagarkar, VV 2012, Multibeam healing for laser micromachining of scintillator arrays. in 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011., 6152620, pp. 3410-3413, 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011, Valencia, Spain, 10/23/11. https://doi.org/10.1109/NSSMIC.2011.6152620

Multibeam healing for laser micromachining of scintillator arrays. / Singh, Bipin; Akarapu, Ravindra; Sabet, Hamid; Guers, Manton John; Segall, Albert Eliot; Nagarkar, Vivek V.

2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011. 2012. p. 3410-3413 6152620.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Singh B, Akarapu R, Sabet H, Guers MJ, Segall AE, Nagarkar VV. Multibeam healing for laser micromachining of scintillator arrays. In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011. 2012. p. 3410-3413. 6152620 https://doi.org/10.1109/NSSMIC.2011.6152620