International Women's Day Spotlight: Lucy Sim

ACPSEM is thrilled to celebrate the important work and inspiring innovations of women in science this International Women's Day.

We spoke with Lucy Sim, the Chair of our Queensland Branch, about her journey in medical physics, the power of mentorship, and advice for young women in the field.

What inspired you to pursue a career in your specific field, and what challenges did you face along the way?

I first got inspired to pursue a career in medical physics after working with my supervisor, who had invented a medical device that helped improve patient diagnosis. Reflecting on my own patient experience, I had always found the whole process intimidating. While at university, I had always been interested in physics and math, but working on a project with my university supervisor made me realise that I wanted to contribute. It was really through that I saw how I could apply those interests to something that could directly help people.

What motivates you as the ACPSEM Branch Chair in Queensland to collaborate with, and serve, our members?

I'm really humbled and grateful for the chance to serve the medical physics community. What motivates me in my leadership role is the opportunity to bring everyone together and help improve member engagement. I want to make sure that by being member of ACPSEM, we’re all getting the most out of being a part of this amazing community.

I’m also driven by the great committee and branch in Queensland who are enthusiastic about creating more opportunities for members to collaborate and learn from each other. We all have different experiences, and I believe there's so much potential when we work together and share knowledge. It's not just about being a member—it's about being part of something that supports professional growth, innovation, and the ongoing development of our field.

What excites you most about the evolution of your field and the advancements being made by women in this space?

Medical physics values diversity, with each person bringing unique skills, perspectives, and experiences and it is these differences that make teams strong and innovative. I’ve been really fortunate to work with a team of physicists who all contribute something different, and it’s that mix that makes coming to work enjoyable.

Medical physics is such a dynamic and evolving field, and there’s room for so many different skills and passions. Whether you’re into technical skills such as programming, AI, design and fabrication or soft skills such as communication, you can find a way to use those talents to make a real impact.

How do you balance the demands of your professional career with personal life, and what strategies have you found most effective?

Its important to me to take time out on the weekend to do the things I love on the weekend, such as my hobbies and friends and family. I love learning new skills and challenging myself past my comfort zone, such as performance arts to hobby farming.

I also make sure to carve out time every week for reflection, journaling, and goal setting. Above all, I’ve learned the importance of treating myself with kindness and compassion, especially when facing tough times or personal challenges.

What role do mentorship and networking play in your career, and how have they influenced your professional journey?

Mentorship has really helped me with identifying blind spots and areas for growth, as well as offering a fresh perspective. I have had two really impactful two female mentors I’ve had were instrumental in helping me navigate challenges. I’ve learned that it’s important to stay open-minded and do the work.

Medical physics is a relatively small community, and having mentors—whether they’re in the field or from different areas—can give you valuable insights, access to expertise, and opportunities to share knowledge.

One of my mentors came through the ACPSEM mentoring program, which I highly recommend for anyone looking to connect with others and grow professionally.

How do you stay updated with the latest advancements and research in your field, and what resources or strategies do you find most valuable?

Attending ACPSEM events has been really helpful in keeping me up to date with the latest advancements, publications, and research in the field. Whether it's a local branch meeting or a national conference, I always enjoy hearing about the different projects, research, and ideas that are being worked on. There are also a lot of great cross-disciplinary events, like those from TROG, RANZCR, and ASMIRT, which I find both interesting and helpful.

Collaboration is key for me—I learn so much from sharing experiences and hearing about others' work, especially in the ACPSEM special interest groups where resources and knowledge are exchanged.

What advice would you give to young women who are considering a career in your field?

My advice to young women is to bring your whole authentic self to the table, because that’s what will make you stand out and help you succeed.