Water calorimetry-based kQ factors for Farmer-type ionization chambers in the SOBP of a carbon-ion beam

Evaluation of dosimetry a performance parameter for a homemade farmer-type ionization chamber according to IEC60731

Introduction: Due to its simplicity, fast response and high reliability, ion chamber detectors are one of the most suitable dosimetry instruments for X and gamma rays. The dosimeter    of photon beams, which used in radiotherapy centers, requires high accuracy and should pass requirements of IEC 60731 standards. About 80 percent of the IEC 60731 standard tests such as stabil...

the investigation of the relationship between type a and type b personalities and quality of translation

چکیده ندارد.

Fluence correction factor for graphite calorimetry in a clinical high-energy carbon-ion beam.

The aim of this work is to develop and adapt a formalism to determine absorbed dose to water from graphite calorimetry measurements in carbon-ion beams. Fluence correction factors, [Formula: see text], needed when using a graphite calorimeter to derive dose to water, were determined in a clinical high-energy carbon-ion beam. Measurements were performed in a 290 MeV/n carbon-ion beam with a fiel...

Determination of absorbed dose to water in clinical ion beams by means of fluorescent nuclear track detectors, ionization chambers and water calorimetry

Determination of absorbed dose calibration factors for therapy level electron beam ionization chambers.

Over several years the National Physical Laboratory (NPL) has been developing an absorbed dose calibration service for electron beam radiotherapy. To test this service, a number of trial calibrations of therapy level electron beam ionization chambers have been carried out during the last 3 years. These trials involved 17 UK radiotherapy centres supplying a total of 46 chambers of the NACP, Mark...