STONE youngster Christopher Bond is set to complete his pioneering cancer treatment in the US in late June, his family says.
The 10-year-old is currently being treated with proton beam radiation therapy in an Oklahoma hospital.
He is said to be coping well with his treatment, which is targeting the remains of a tumour at the base of his brain.
Christopher was diagnosed last autumn and underwent an 11-hour operation at Alder Hey Children's Hospital to remove the five-inch long tumour.
However, a follow-up scan in March revealed early signs of the tumour growing again - necessitating a visit to the US for ground-breaking cancer treatment.
He has so far had 10 out of 30 scheduled treatments.
Christopher, who describes his treatment as "the fight with the aliens using proton therapy", has also been contributing to a blog written by mum Angharad, 36.
She revealed that when the process started the youngster had "a bit of a melt down" on a trial run with the treatment machine, while wearing a special mask to target radiation to the correct spots.
"We had to bribe him with a new case for his iPad," said Mrs Bond, who has accompanied Christopher to America with her husband Phillip, 44.
"We went into the gantry room and they put him on the table with his pillows and his mask to hold him still and checked that everything lined up.
"He was only on the table for 15 minutes then came out all happy as he had a new 'bead of courage' for his necklace."
By his third treatment Christopher was confident it wouldn't hurt and got himself ready for the machine without help.
"The machine they use is called the gantry which can rotate round 360 degrees," said Christopher. "The room behind it is three storeys high for all the machinery needed to move the snout, as they call the end of the machine, round.
"As I am not 12 I was not allowed to see the cyclotron which creates the protons."
He has been keeping up his spirits with regular swims in the pool where his family are staying - and getting himself into trouble staging water fights.