An integrative device is designed for diagnosing high-energy X-ray sources.It performs simultaneous measurements of the spot sizes

intensity distributions

bremsstrahlung spectrum

and angle distributions of X-rays at one shot.Spot size and intensity distribution are obtained using the square-hole coded imaging method.Bremsstrahlung spectra are obtained using helix wedge absorption imaging method.And angle distribution of dose is obtained using LiF dose absorber.The device was used at two accelerators

Dragon-I and 12 MeV LIA

at Institute of Fluid Physics

CAEP

for diagnosing X-ray sources.