eprintid: 10192887
rev_number: 10
eprint_status: archive
userid: 699
dir: disk0/10/19/28/87
datestamp: 2024-06-05 15:20:05
lastmod: 2024-06-05 15:20:05
status_changed: 2024-06-05 15:20:05
type: poster
metadata_visibility: show
sword_depositor: 699
creators_name: Price, Tony
creators_name: Allport, Phil
creators_name: Green, Stuart
creators_name: Shaikh, Saad
creators_name: Radogna, Raffaella
creators_name: Walker, Daniel
creators_name: Kelleter, Laurent
creators_name: Basharina-Freshville, Anastasia
creators_name: Saakyan, Ruben
creators_name: Jolly, Simon
title: Proof of principle detector for fast patient quality assurance
divisions: UCL
divisions: B04
divisions: C05
divisions: F42
abstract: Standard clinical practice in particle therapy is to verify the treatment plan for each patient before the plan is delivered. This patient specific QA process normally involves repeated delivery of the treatment plan to a water or water equivalent volume, with changes to the position of a dosimeter or dosimetric array in order to measure the volumetric dose distribution. Due to the repeated delivery of each field, patient QA can be extremely time consuming. An ideal patient QA system would allow measurements at the speed of treatment delivery ie. within a few minutes.

We present measurements with a simple proof-of-concept system for fast patient QA. The system is essentially a stripped-down proton CT detector, utilising a single tracking detector developed for the PRaVDA proton CT detector coupled to a single scintillating calorimeter module adapted from the SuperNEMO high energy physics experiment. The calorimeter consists of a plastic scintillator, providing the water-equivalent medium into which the beam is delivered. By measuring the position of each particle as it enters the calorimeter it is possible to reconstruct the dose deposition of individual particles and thereby reconstruct the 3D volumetric dose deposition.

Results are presented from experiments with protons at the Birmingham University 36MeV cyclotron showing volumetric dose reconstruction at proton rates well below clinical fluences. A method for scaling this system up to a full clinical patient QA system is also described.
date: 2019-06-12
date_type: published
official_url: https://ptcog58.org/
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2279206
lyricists_name: Shaikh, Saad
lyricists_id: SSHAI44
actors_name: Shaikh, Saad
actors_id: SSHAI44
actors_role: owner
full_text_status: public
event_title: 58th Annual Conference of the Particle Therapy Co-operative Group {PTCOG58)
event_location: Manchester, UK
event_dates: 10 - 15 June 2019
citation:        Price, Tony;    Allport, Phil;    Green, Stuart;    Shaikh, Saad;    Radogna, Raffaella;    Walker, Daniel;    Kelleter, Laurent;             ... Jolly, Simon; + view all <#>        Price, Tony;  Allport, Phil;  Green, Stuart;  Shaikh, Saad;  Radogna, Raffaella;  Walker, Daniel;  Kelleter, Laurent;  Basharina-Freshville, Anastasia;  Saakyan, Ruben;  Jolly, Simon;   - view fewer <#>    (2019)    Proof of principle detector for fast patient quality assurance.                   Presented at: 58th Annual Conference of the Particle Therapy Co-operative Group {PTCOG58), Manchester, UK.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10192887/1/PTCOG58%20Poster.pdf