Proton dosimetry comparison involving ionometry and calorimetry

Delacroix, S.; Bridier, A.; Mazal, A.; Daures, J.; Ostrowsky, A.; Nauraye, C.; Kacperek, A.; Vynkier, Stéphane; Brassard, Normand; Habrand, Jean‐Louis

doi:10.1016/s0360-3016(96)00536-6

Cited by 23 publications

(29 citation statements)

References 9 publications

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“…1-3) have not been normalized to PETRA stopping powers (Medin and Andreo, 1997) except for relevant calorimetric-derived w-values (Brede et al, 1999;Delacroix et al, 1997;Hashemian et al, 2003;Palmans et al, 1996 andSeuntjens et al, 1994;Schulz et al, 1992;Siebers et al, 1995). These data were all deduced using ICRU stopping powers (ICRU, 1993), except in the case of Schulz et al (1992) where the datum was normalized (above) to ICRU stopping powers.…”

Section: Resultsmentioning

confidence: 99%

“…Values of (w air /e) p deduced from comparative absorbed dose measurements using calorimeters and ionization chambers were included in the ICRU 59 (ICRU, 1998) assessment of a recommended w-value (Delacroix et al, 1997;Palmans et al, 1996;Seuntjens et al, 1994;Siebers et al, 1995). Effectively, the (w air ) pvalue is derived from the following relationship:…”

Section: Calorimetric Measurementsmentioning

confidence: 99%

“…For equality a (w air ) p -value of (34.370.4) J C À1 can be deduced. Delacroix et al (1997) made measurements in a rangemodulated 73 MeV proton beam at residual energies of 32.6 and 51.9 MeV and in an unmodulated 200 MeV beam at a residual energy of 186 MeV. They used an A-150 plastic tissue-equivalent (TE) calorimeter and airfilled A-150 ionization chambers in an A-150 plastic phantom.…”

Section: Calorimetric Measurementsmentioning

confidence: 99%

“…Eight sets of data (Bakker and Segre´, 1951;Delacroix et al, 1997;Denis et al, 1990;Hiraoka et al, 1989;Larson, 1958;Petti et al, 1986;Palmans et al, 1996 (the same result is given in Seuntjens et al, 1994); Siebers et al, 1995) were used In the ICRU 59 assessment of (w air ) p values. The same data sets were used in the TRS 398 evaluation (IAEA, 2000).…”

Section: Icru and Iaea Evaluationsmentioning

confidence: 99%

“…The data point of Siebers et al (1995) at 180 MeV should be (34.270.5) J C À1 [see above]. The w-value of (34.370.4) J C À1 of Delacroix et al (1997) used in the TRS 398 evaluation applies to humid air. The dry-air value of (34.570.4) J C À1 should have been used.…”

Section: Icru and Iaea Evaluationsmentioning

confidence: 99%

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The w-value in air for proton therapy beams

Jones

2006

Radiation Physics and Chemistry

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Section: Resultsmentioning

confidence: 99%

Section: Calorimetric Measurementsmentioning

confidence: 99%

Section: Calorimetric Measurementsmentioning

confidence: 99%

Section: Icru and Iaea Evaluationsmentioning

confidence: 99%

Section: Icru and Iaea Evaluationsmentioning

confidence: 99%

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The w-value in air for proton therapy beams

Jones

2006

Radiation Physics and Chemistry

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Dose detectors, sensors, and their applications

Giordanengo

2018

Medical Physics

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This article is intended to present the different types of particle and radiation detectors available for applications in particle therapy. Several types of detectors and sensors exist for measurements of absorbed dose in reference and nonreference conditions and the ones in use for beam monitoring. Therefore, this manuscript focuses on the following applications: (a) primary methods for dosimetry in ion beams, (b) measurements of absorbed dose in realistic patient‐specific scenarios with different dose delivery configurations, and (c) beam monitoring. Water and graphite calorimeters, Faraday cups, ionization based gas detectors are described first, followed by the description of the protocols for proton and ion dosimetry. Then films, scintillator and solid‐state detectors are reviewed. Finally, several types of ionization chambers (large, pinpoint, arrays of chambers arranged in regular 1D or 2D pattern, parallel‐plate configuration with large integral electrodes or with anode segmented in strips or pixels, multi‐wire, and the multi‐gap prototype) have been considered. New beam monitors to deal with a wide range of intensity and pulsed beams expected from new accelerators, different dose fractionation and advanced delivery techniques are presented. The existing detectors available for particle therapy have been described taking into account the different requirements for devices used in reference and nonreference conditions and the ones designed for beam monitoring.

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Clinical commissioning of intensity‐modulated proton therapy systems: Report of AAPM Task Group 185

Farr¹,

Moyers²,

Allgower

et al. 2020

Medical Physics

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Proton therapy is an expanding radiotherapy modality in the United States and worldwide. With the number of proton therapy centers treating patients increasing, so does the need for consistent, high-quality clinical commissioning practices. Clinical commissioning encompasses the entire proton therapy system's multiple components, including the treatment delivery system, the patient positioning system, and the image-guided radiotherapy components. Also included in the commissioning process are the x-ray computed tomography scanner calibration for proton stopping power, the radiotherapy treatment planning system, and corresponding portions of the treatment management system. This commissioning report focuses exclusively on intensitymodulated scanning systems, presenting details of how to perform the commissioning of the proton therapy and ancillary systems, including the required proton beam measurements, treatment planning system dose modeling, and the equipment needed.

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Proton dosimetry comparison involving ionometry and calorimetry

Cited by 23 publications

References 9 publications

The w-value in air for proton therapy beams

The w-value in air for proton therapy beams

Dose detectors, sensors, and their applications

Clinical commissioning of intensity‐modulated proton therapy systems: Report of AAPM Task Group 185

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