Work packages

WP1: Dosimetry in terms of absorbed dose to water for therapy with medium energy x-ray

The goal of WP1 is to establish new metrological chain for medium energy x-rays based on absorbed dose to water instead of air kerma, so avoiding the use of costly conversion factors in terms of uncertainty.

Task 1.1: St ardisation of calibration procedures for dosimetry for therapy with medium-energy x-rays
Task 1.2: Development of two new primary st ards for the realisation of Dw in medium-energy x-radiation qualities
Task 1.3: Comparison of dosimetry based on Nw calibration factors with dosimetry based on Nk calibration factors
Task 1.4: Guidelines for a dosimetry protocol for therapy with medium x-radiation


WP2: New integral quantities for high energy x-rays small fields

The topic of WP2 is the study of a new integral quantity to reduce the uncertainty of the dosimetry of small beams used in modern radiotherapy modalities based on high energy photons (IMRT, stereotactic rotational radiotherapies) to study new radiation quality indexes for improving the traceability of the st ards of the primary laboratory to the end users.

Task 2.1: Optimised integral quantities as beam quality parameter
Task 2.2: Optimised integral quantities for reference dosimetry
Task 2.3: References in terms of DAPw
Task 2.4: TPS DAPw


WP3: Reference for dosimetry with scanned proton carbon ion beams: consistency traceability

The aims of this WP are to determine validate the correction factors for both water graphite calorimeters in scanned beams to compare the primary st ards in terms of absorbed dose to water, to study the correction factors to be applied to ionisation chamber measurements in scanned beams experimentally by means of calculations, to study the water equivalence of alanine radiochromic films other water equivalent phantom materials in high energy protons beams.

Task 3.1: Calorimetry for the realisation of absorbed dose to water in clinical scanned proton ion beams
Task 3.2: Ionisation chamber dosimetry for scanned proton beams
Task 3.3: Water equivalence energy dependence of detector phantom materials in scanned proton beams


WP4: Brachytherapy

The aims of this WP are to characterise two different types of miniature x-ray sources, to establish a primary st ard in terms of absorbed dose to water, for these sources to investigate different transfer st ards in order to provide recommendations on a calibration  chain. A robotic based high precision positioning system within a water phantom measuring techniques applying alanine, scintillators x-ray storage foils will be developed to determine the 2D or 3D dose distribution in a water phantom in the presence of clinical applicators.

Task 4.1: Source characterisation
Task 4.2: Monte Carlo simulations of the miniature X-ray tubes for the characterisation of the measuring devices
Task 4.3: Development of primary st ards for miniature x-ray tubes in terms of Dw
Task 4.4: Recommendations on a calibration chain
Task 4.5: Development of measuring techniques for the verification of treatment planning systems in HDR-Brachytherapy


WP 5: Characterisation of detectors for verification of TPS calculated complex dose distributions

The aims of this WP are to study the use of point like detectors to overcome the lack of primary st ards for very small radiation fields, to characterise 2D 3D detectors to be used for verification of complex dose distributions in photon electron beams to optimise the use of diamond EPID detector for in vivo dosimetry.

Task 5.1: Investigation of point-like detectors for dose measurements in complex dose distributions
Task 5.2: Investigation of 2- 3-dimensional dose detectors
Task 5.3: Development of detectors for in-vivo dosimetry


WP6: Methods for verification of treatment planning systems in anthropomorphic phantoms

The aim of this WP is to develop, validate, compare characterise measurement methods uncertainty budget for the 2D/3D verification of the treatment planning system. These methods will be based on one dosimeter or the association of several dosimeters which have been characterised in WP5. The validation will be carried out in an anthropomorphic phantom to be as close as possible to the clinical conditions as the basis for the comparison of the results of the measurement methods TPS calculations. These conditions will be chosen from among those for which the TPS calculations the measurements have well known issues i.e. where high gradient doses are encountered such as dynamic rotational treatment modalities in the presence of heterogeneities. Once the methods have been validated a series of recommendations or guidelines will be written disseminated to the European radiotherapy community.

Task 6.1: Development of measurement methods for 2D/3D TPS verification in anthropomorphic phantoms
Task 6.2: Validation of measurement methods in anthropomorphic phantoms for TPS verification
Task 6.3: Recommendations on the traceable verification of TPS calculated complex dose distribution


WP7: Creating Impact

The key aim of this workpackage (WP) is to maximise the JRP impact. This will be done by assuring that the results from each WP will be disseminated between the JRP-Partners, to the wider metrological community, stakeholders, end-users. The WP tasks include establishing maintaining the JRP website, writing journal papers contributing conference papers, establishing a user group, organising workshops preparation of recommendations arising from the JRP results.

Task 7.1: Knowledge Transfer
Task 7.2: St ards’ activities
Task 7.3: Training Dissemination
Task 7.4: Exploitation


WP8: JRP Management Coordination

The aim of this workpackage is to ensure high quality efficient project implementation management. All JRP-Partners are expected to participate in this workpackage through attendance at project meetings contribution to the reporting.

Task 8.1: Project meetings
Task 8.2: Project reports
Task 8.3: REG Management