. I believe one can have just 5 days of radiotherapy with FASTforward or Hypofractionated treatment

I have stage 1 1cm tumour in right breast. Lumpectomy and SNB planned.

I am keen to have just 5 days of hypofractionated radiotherapy which I think is called FASTforward.

Iam 74 years old . I cannot seem to find out which places near me offer this?
Mount Vernon is the nearest. Has anyone had this and if so where?