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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Experimental Comparison of Knife-Edge and Multi-Parallel Slit Collimators for Prompt Gamma Imaging of Proton Pencil Beams
|
|---|---|
| Published in |
Frontiers in oncology, June 2016
|
| DOI | 10.3389/fonc.2016.00156 |
| Pubmed ID | |
| Authors |
Julien Smeets, Frauke Roellinghoff, Guillaume Janssens, Irene Perali, Andrea Celani, Carlo Fiorini, Nicolas Freud, Etienne Testa, Damien Prieels |
| Abstract |
More and more camera concepts are being investigated to try and seize the opportunity of instantaneous range verification of proton therapy treatments offered by prompt gammas emitted along the proton tracks. Focusing on one-dimensional imaging with a passive collimator, the present study experimentally compared in combination with the first, clinically compatible, dedicated camera device the performances of instances of the two main options: a knife-edge slit (KES) and a multi-parallel slit (MPS) design. These two options were experimentally assessed in this specific context as they were previously demonstrated through analytical and numerical studies to allow similar performances in terms of Bragg peak retrieval precision and spatial resolution in a general context. Both collimators were prototyped according to the conclusions of Monte Carlo optimization studies under constraints of equal weight (40 mm tungsten alloy equivalent thickness) and of the specificities of the camera device under consideration (in particular 4 mm segmentation along beam axis and no time-of-flight discrimination, both of which less favorable to the MPS performance than to the KES one). Acquisitions of proton pencil beams of 100, 160, and 230 MeV in a PMMA target revealed that, in order to reach a given level of statistical precision on Bragg peak depth retrieval, the KES collimator requires only half the dose the present MPS collimator needs, making the KES collimator a preferred option for a compact camera device aimed at imaging only the Bragg peak position. On the other hand, the present MPS collimator proves more effective at retrieving the entrance of the beam in the target in the context of an extended camera device aimed at imaging the whole proton track within the patient. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 35 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 8 | 23% |
| Student > Master | 5 | 14% |
| Researcher | 5 | 14% |
| Student > Doctoral Student | 3 | 9% |
| Student > Bachelor | 2 | 6% |
| Other | 2 | 6% |
| Unknown | 10 | 29% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 11 | 31% |
| Engineering | 8 | 23% |
| Medicine and Dentistry | 4 | 11% |
| Agricultural and Biological Sciences | 2 | 6% |
| Energy | 1 | 3% |
| Other | 0 | 0% |
| Unknown | 9 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 27 June 2016.
All research outputs
#21,439,778
of 26,311,549 outputs
Outputs from Frontiers in oncology
#11,820
of 22,970 outputs
Outputs of similar age
#287,686
of 370,912 outputs
Outputs of similar age from Frontiers in oncology
#43
of 64 outputs
Altmetric has tracked 26,311,549 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 22,970 research outputs from this source. They receive a mean Attention Score of 3.0. This one is in the 27th percentile – i.e., 27% of its peers scored the same or lower than it.
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We're also able to compare this research output to 64 others from the same source and published within six weeks on either side of this one. This one is in the 6th percentile – i.e., 6% of its contemporaries scored the same or lower than it.