title: A simple device for testing the equilibrium of ion chambers in ambient conditions.
abstract: A simple device for testing the response of ion chambers when ambient pressure is varied was built from an inexpensive device normally used to maintain tennis balls under pressure. The results show that one may use this system in routine as well as for teaching purposes.
mesh_terms: D001274:Atmospheric Pressure; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*