Force-sensitive holding cell

Force Sensitive Holding Cells was technology designed to effectively detain powerful force sensitives from escaping using their sorcerous abilities. They were used actively throughout history but little is known about them except those that held Luke Skywalker during his capture by the Reborn Emperor on a customized Lictor-class Dungeon Ship. Although it might be similar to the Sith Containment Cells located on the Jedi Temple on Coruscant.

Source

 * Dark Empire Handbook