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Collimator Device Component

Known as: Collimation, Collimator 
A diaphragm or system of diaphragms made of an absorbing material, designed to define and restrict the dimensions and direction of a beam of… 
National Institutes of Health

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Broader (1)

Collimator devices
Medical Device Component or Accessory

Papers overview

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Highly Cited
2005
Highly Cited
2005
Partial volume effect compensation for quantitative brain SPECT imaging
Partial volume (PV) effects degrade the quantitative accuracy of SPECT brain images. In this paper, we extended a PV compensation… 
Highly Cited
2004
Highly Cited
2004
A 5-V operated MEMS variable optical attenuator by SOI bulk micromachining
We report the design, fabrication, and successful demonstration of microelectromechanical variable optical attenuator (VOA) using… 
Highly Cited
2001
Highly Cited
2001
Impact of simple tissue inhomogeneity correction algorithms on conformal radiotherapy of lung tumours.
Review
2000
Review
2000
Three-dimensional intensity-modulated radiotherapy in the treatment of nasopharyngeal carcinoma: the University of California-San Francisco experience.
Highly Cited
1995
Highly Cited
1995
Collimator scatter in photon therapy beams.
A model for collimator photon scatter calculations is presented. The scatter from a collimating block is separated into two… 
Highly Cited
1994
Highly Cited
1994
Analytic modeling of photon scatter from flattening filters in photon therapy beams.
Analytic models for calculation of scatter distributions from flattening filters in therapy photon beams are presented. It is… 
Highly Cited
1986
Highly Cited
1986
Inverse Monte Carlo as a unified reconstruction algorithm for ECT.
Tomographic reconstruction for single photon emission computed tomography (SPECT) with simultaneous compensation for attenuation… 
Highly Cited
1982
Highly Cited
1982
Analysis of SPECT including Scatter and Attenuation Using Sophisticated Monte Carlo Modeling Methods
The effects of scatter and attenuation on single photon emission computed tomography (SPECT) images can be analyzed with the aid… 
Highly Cited
1978
Highly Cited
1978
A new method of multiplanar emission tomography using a seven pinhole collimator and an Anger scintillation camera.
A new method of multiplanar emission tomography is described; it uses a wide-field Anger scintillation camera (37.5 cm crystal… 
Highly Cited
1974
Highly Cited
1974
A new iterative method for collimation correction in small‐angle scattering
A new iterative procedure for desmearing small-angle scattering data including the three types of resolution errors and arbitrary… 
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