Characteristics of Multihole Collimator Gamma Camera Simulation Modeled Using MCNP5

Journal Article · Tue May 20 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2940628· OSTI ID:21143301

Saripan, M I; Mashohor, S; Adnan, W A. Wan; Marhaban, M H ^[1]; Hashim, S ^[2]

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1. Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor (Malaysia)
2. Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor (Malaysia)

This paper describes the characteristics of the multihole collimator gamma camera that is simulated using the combination of the Monte Carlo N-Particles Code (MCNP) version 5 and in-house software. The model is constructed based on the GCA-7100A Toshiba Gamma Camera at the Royal Surrey County Hospital, Guildford, Surrey, UK. The characteristics are analyzed based on the spatial resolution of the images detected by the Sodium Iodide (NaI) detector. The result is recorded in a list-mode file referred to as a PTRAC file within MCNP5. All pertinent nuclear reaction mechanisms, such as Compton and Rayleigh scattering and photoelectric absorption are undertaken by MCNP5 for all materials encountered by each photon. The experiments were conducted on Tl-201, Co-57, Tc-99 m and Cr-51 radio nuclides. The comparison of full width half maximum value of each datasets obtained from experimental work, simulation and literature are also reported in this paper. The relationship of the simulated data is in agreement with the experimental results and data obtained in the literature. A careful inspection at each of the data points of the spatial resolution of Tc-99 m shows a slight discrepancy between these sets. However, the difference is very insignificant, i.e. less than 3 mm only, which corresponds to a size of less than 1 pixel only (of the segmented detector)00.

• OSTI ID: 21143301
• Journal Information: AIP Conference Proceedings, Vol. 1017, Issue 1; Conference: PERFIK 2007: National physics conference 2007 on current issues of physics in Malaysia, Kuala Terengganu (Malaysia), 26-28 Dec 2007; Other Information: DOI: 10.1063/1.2940628; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
CHROMIUM 51
COBALT 57
COLLIMATORS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
GAMMA CAMERAS
IMAGES
M CODES
MONTE CARLO METHOD
NAI DETECTORS
NUCLEAR MEDICINE
PHOTONS
RAYLEIGH SCATTERING
SPATIAL RESOLUTION
TECHNETIUM 99
THALLIUM 201