Collimator devices

Known as: collimator

National Institutes of Health

Papers overview

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2006

We present formulae for the coherent and incoherent tune shifts due to the nonlinear resistive wall wake field for a single beam…

2002

A white beam collimator has been built to increase the efficiency of a diamond high-heat-load premonochromator. The collimator is…

1983

A variable-angle slant-hole (VASH) collimator was constructed to show the feasibility of using multiple sliding plates to achieve…

1979

A new technique for evaluating the point spread function of parallel hole collimators in scintillation cameras is studied. The…

1976

The dose in the build-up region for four different Cobalt-60 therapy units was measured. It was found that, for large collimator…

1970

For scintigraphic instruments such as scanners and scintillation cameras, collimatore with greatly dif ferent characteristics…

1970

A digital computer is used with a ray tracing technique to calculate the response of a multihole focusing collimator to a point…

1965

The factors influencing the response of a collimator for radioactive isotope scanning are carefully defined and analysed. The…

1965

An experimental test was made of four different focused lead collimators with a phantom to represent the liver containing a solid…

1964

Summary A standard collimator for thyroid radioiodine uptake measurements is described. The characteristics of this collimator…