Abstract
All imaging techniques require the use of optical components to transfer light from a source to a sensor. The impact of the transfer optics on the image resolution is often not well understood. To improve this situation, the point spread function (PSF) of the optical system needs to be measured; this requires a good point source and sufficient dynamic range to fully characterize the PSF distribution. For this purpose we have created an intense optical point source, using a high quality laser and special focusing optics. The PSFs of various optical systems, developed for high resolution electron beam imaging, were measured using this source and compared to Zemax simulations. These systems incorporate a digital micromirror array, which was used to produce very high (>105) dynamic range images. The goal is to systematically understand and mitigate any ill effects due aberrations, diffraction, and misalignments of all the components of the imaging system. Presented here are the results of our measurements and simulations.
| Original language | English |
|---|---|
| Title of host publication | IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference |
| Publisher | Joint Accelerator Conferences Website (JACoW) |
| Pages | 354-356 |
| Number of pages | 3 |
| ISBN (Electronic) | 9783954501472 |
| Publication status | Published - 2016 |
| Externally published | Yes |
| Event | 7th International Particle Accelerator Conference, IPAC 2016 - Busan, Korea, Republic of Duration: 8 May 2016 → 13 May 2016 |
Conference
| Conference | 7th International Particle Accelerator Conference, IPAC 2016 |
|---|---|
| Country | Korea, Republic of |
| City | Busan |
| Period | 8.5.16 → 13.5.16 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Atomic and Molecular Physics, and Optics
Cite this
High resolution and dynamic range characterisation of beam imaging systems. / Wolfenden, J.; Fiorito, R.; Welsch, C. P.; Karataev, P.; Kruchinin, K.; Bergamaschi, M.; Kieffer, R.; Lefevre, T.; Mazzoni, S.
IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference. Joint Accelerator Conferences Website (JACoW), 2016. p. 354-356.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - High resolution and dynamic range characterisation of beam imaging systems
AU - Wolfenden, J.
AU - Fiorito, R.
AU - Welsch, C. P.
AU - Karataev, P.
AU - Kruchinin, K.
AU - Bergamaschi, M.
AU - Kieffer, R.
AU - Lefevre, T.
AU - Mazzoni, S.
PY - 2016
Y1 - 2016
N2 - All imaging techniques require the use of optical components to transfer light from a source to a sensor. The impact of the transfer optics on the image resolution is often not well understood. To improve this situation, the point spread function (PSF) of the optical system needs to be measured; this requires a good point source and sufficient dynamic range to fully characterize the PSF distribution. For this purpose we have created an intense optical point source, using a high quality laser and special focusing optics. The PSFs of various optical systems, developed for high resolution electron beam imaging, were measured using this source and compared to Zemax simulations. These systems incorporate a digital micromirror array, which was used to produce very high (>105) dynamic range images. The goal is to systematically understand and mitigate any ill effects due aberrations, diffraction, and misalignments of all the components of the imaging system. Presented here are the results of our measurements and simulations.
AB - All imaging techniques require the use of optical components to transfer light from a source to a sensor. The impact of the transfer optics on the image resolution is often not well understood. To improve this situation, the point spread function (PSF) of the optical system needs to be measured; this requires a good point source and sufficient dynamic range to fully characterize the PSF distribution. For this purpose we have created an intense optical point source, using a high quality laser and special focusing optics. The PSFs of various optical systems, developed for high resolution electron beam imaging, were measured using this source and compared to Zemax simulations. These systems incorporate a digital micromirror array, which was used to produce very high (>105) dynamic range images. The goal is to systematically understand and mitigate any ill effects due aberrations, diffraction, and misalignments of all the components of the imaging system. Presented here are the results of our measurements and simulations.
UR - http://www.scopus.com/inward/record.url?scp=85015319438&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015319438&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85015319438
SP - 354
EP - 356
BT - IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference
PB - Joint Accelerator Conferences Website (JACoW)
ER -