Sublimation is an unusual phenomenon where a solid becomes ... When the iodine is gently heated, it sublimes (sublimates) and the gas forms extremely pure iodine crystals that collect on the cold test ...

The most eye-catching thing about iodine sublimation is the bright purple ... his phone camera of his students’ freshly deposited crystals under a microscope at 40× zoom.

The iodine crystals can then simply be heated ... requires a relatively long time (around 10 minutes) to be heated to sublimation temperature, which might not make the thruster responsive enough ...

These crystals, which are based on a groundbreaking discovery made by the team in 2015, are capable of capturing iodine — one of the most common radioactive fission products — in aqueous and ...