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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.12
- 수록면
- 415 - 419 (5page)
- DOI
- 10.4283/JMAG.2023.28.4.415
이용수
이 논문의 연구 히스토리 (2)
2023
Optimized Parallel-Hole Collimator Design that Balances Spatial Resolution and Sensitivity through Monte Carlo Simulation
Seung-Hun Kang
,
Byungdu Jo
,
Seung-Jae Lee
Journal of Magnetics
2023.12
학술저널
Optimized Parallel-Hole Collimator Design that Balances Spatial Resolution and Sensitivity through Monte Carlo simulation
Seung-Hun Kang
,
Byungdu Jo
,
Seung-Jae Lee
한국자기학회 학술연구발표회 논문개요집
2023.11
학술대회자료
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초록· 키워드
오류제보하기
The quality of gamma camera images is determined by the characteristics of the image collimator. The size and length of the collimator’s holes, as well as the thickness of its septa, directly impact sensitivity and spatial resolution. These factors have conflicting optimization relationships with each other, and sensitivity and spatial resolution variations manifest differently based on combinations of different variables such as larger or smaller diameter holes, shorter or longer holes, thinner or thicker septa, and so on. Accordingly, appropriate collimator design plays a crucial role in optimizing the quality of gamma camera images. In this study, referencing the structure of an ELEGP collimator, we design a collimator that optimizes sensitivity and spatial resolution. To achieve this, collimators with various hole sizes, lengths, and septa thicknesses were designed, and simulations were conducted. Through this process, the most suitable conditions for optimizing the image quality of the gamma camera system were obtained. Geant4 Application for Tomographic Emission (GATE) simulations were performed for collimator optimization. Among 820 simulation results, the best image quality was achieved with a hole diameter of 2.6 ㎜, length of 28 ㎜, and septa thickness of 0.4 mm. If the collimator designed in this study is used, it is expected to provide superior images compared to those obtained with existing gamma camera systems.
목차
1. Introduction
2. Material and Methods
3. Results and Discussion
4. Conclusion
References
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