Category: Updates

What’s going on in my life and the world around me

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Read all about it

My latest article has just been published! It’s called Emittance growth due to energy spread in a laser-driven proton beamline, and has been published in Results in Physics. It’s all about what happens to protons in an accelerator when they have a large energy spread, such as when accelerated by a powerful laser. I did lots of simulations and developed some mathematical relations between this energy spread and the growth in emittance of the proton beam, which we need to minimise in order to control the beam properly.

You can read the paper online for free!

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World Environment Day

World Environment Day website snapshot
Visit the World Environment Day website

Tomorrow is World Environment Day! A great opportunity to think about how we can play our part in overcoming the climate crisis.

Things you could do:

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Countdown to a better future

Today is the launch of the Countdown campaign to fight together against the climate emergency.

If you have the time today, please tune in to some or all of the launch event and find out how you can play your part in saving the planet from the crisis and fighting the injustice brought by climate change.

Continue reading “Countdown to a better future”
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Auto-dark mode in WordPress

screenshot

I’ve spent most of today moving my website to a new host, and while I was doing it I wanted to add a dark mode.

It took quite a lot of fiddling around, but now I’ve got the site to automatically switch between light and dark mode based on the OS mode. I use macOS, and it automatically switches to dark mode at night-time. Now my website switches along with it!

Continue reading “Auto-dark mode in WordPress”

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A simple message of love…

Sometimes it’s just the little things that say, “We love you!”

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My second research article

I’m very excited to announce that my second main research article from my post-doctoral research at Peking University has just been published in the Journal of Instrumentation!

https://iopscience.iop.org/article/10.1088/1748-0221/14/02/T02003/meta

This article is about simulating some of the complex interactions that go on between particles inside a high-intensity accelerator. Lots of simulations focus either on the accelerator physics of how the beam moves in the accelerator, or on the interactions between different particles in certain materials, but it’s hard to model both these parts together. The article describes the changes I made to a simulation code called Impact-T in order to try and understand what’s going on in these high-intensity beams.

Unfortunately, this journal is not open-access, so you’ll need a university subscription to read the full article. If you don’t have access and you want to know more, you can find some of the information in my latest conference paper.

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I published a new article!

I’m very excited to announce that my first article with me as “first author” has been published in Physical Review Accelerators and Beams!

https://journals.aps.org/prab/abstract/10.1103/PhysRevAccelBeams.21.122401

The article is about magnets to be used to control high-intensity beams inside some linear particle accelerators. We want to make these magnets as small as possible while still being as strong as possible, and on top of that the strength needs to be adjustable for different beams. This is quite a challenge!

We tested out two different methods for solving this problem: firstly, using smaller, fixed magnets inside the accelerator and using larger, external magnets to compensate; and secondly, coming up with some interesting new designs for compact adjustable permanent magnets.

The article is open access, so anyone can read it!

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Capilano

Capilano Suspension Bridge Park, Vancouver, British Columbia, Canada

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Sandstorm

 

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Big train, little train


When we asked Nathanael what toys he wanted to bring to play with on the bullet train, he really wanted to bring his bullet train… It’s very meta!