Histologically-proven localized prostate cancer.

Low, Intermediate, and High-risk prostate cancer (ideally limited to 1 risk factor)

Low-risk: cT1-T2a, PSA \<10, and Gleason score 6

Intermediate-risk: cT2b-c, PSA 10-20, and/or Gleason score 7

High-risk limited to 1 risk factor: \>T2, PSA \>20, or Gleason score \>7

Intra-prostatic tumour(s) demonstrated on mpMRI histologically confirmed limited to =/\< 1/3 total prostate volume

Planned for EBRT (+/- ADT)

ECOG 0 or 1

18 years of age or older

Ability to provide written informed consent to participate in the study

MR-guided Tumour Boost