# Proton Pencil Beam Scanning Plan utilizing apertures/multi leaf collimators **URL:** \ **Category:** General\ **Created:** [December 4, 2025, 10:19pm UTC](https://opentps.discourse.group/t/proton-pencil-beam-scanning-plan-utilizing-apertures-multi-leaf-collimators/112 "2025-12-04T22:19:18Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Eliot-P](https://yyz2.discourse-cdn.com/free1/user_avatar/opentps.discourse.group/eliot-p/32/6_2.png) [@Eliot-P](https://opentps.discourse.group/u/Eliot-P)\ **Post date:** [September 2, 2026, 9:21am UTC](https://opentps.discourse.group/t/proton-pencil-beam-scanning-plan-utilizing-apertures-multi-leaf-collimators/112/4 "2026-09-02T09:21:36Z")
Dear ddxxwang, As[previously mentioned by my colleague Romain Schyns](https://opentps.discourse.group/t/plugins-flash-tps/128/2) the repository of the OpenTPS FLASH plug-in is unfortunately no longer maintained and provided as is. However I must add to his answer that, based on the commits to this repository, I see that it has been updated for OpenTPS 3.0. Regarding the installation, you should follow the guidelines provided in the repository and try to add it to your **PYTONPATH** (as `pip install` will not work with this plug-in). Examples can be found in this repository. In addition there are two master’s theses on the subject that might help you: - [_Robustness study of patient-specific range modulators for conformal FLASH proton therapy_](https://thesis.dial.uclouvain.be/entities/masterthesis/6cc7909f-f522-4032-98f2-58c4c96f4f1c) - [_Development and numerical assessment of an analytical model for dose estimation in FLASH proton therapy with 3D range modulators_](https://thesis.dial.uclouvain.be/entities/masterthesis/57575adb-9a76-406c-9302-765caf45e69e) They should be available in open-access;, however the access is provided by the UCLouvain university and therefore not handled by us. I hopes this somewhat complete the answer of my colleague. Regards, Eliot --- _[View the full topic](https://opentps.discourse.group/t/proton-pencil-beam-scanning-plan-utilizing-apertures-multi-leaf-collimators/112)._