ITEP proton microscopy facility

摘要

The proton radiography facility which uses magnetic optics (proton microscope PUMA [7]) was developed at TWAC-ITEP accelerator [1,2,6]. PUMA proton microscopy facility was specially designed for studies in the field of high energy density physics, including the research of equations of state and phase transitions of matter at extreme conditions, shockwave and detonation physics, hydrodynamics of high energy density flows, and dynamic material strength and damage studies [10,11]. Proton microscope PUMA allows the measurement of density distribution within static and dynamic objects by using a proton beam with energy of 800MeV. Proton-radiographic image of the object is formed in the plane of the detector with magnification k=4. An image of the object is formed using a magneto-optical system consisting of four quadrupole lenses on permanent magnets (PMQ). PUMA facility is designed for the measurement of objects with areal density of 20 g/cm2 and field of view of 20 mm. For the facility, the spatial resolution is from 60 microns to 115 microns for objects with areal density from 0.46 g/cm2 to 17 g/cm2, respectively. Research was also performed on nondestructive testing of static objects (including tomographic methods) and radiobiological studies.