X-Ray shielding glass plates

X-Ray shielding glass plates made of glass types TF5 and TF105 are intended for protection against x-ray emittance. Besides, TF105 is radiation resistant glass having the same optical properties as TF5 but in addition does not darken at long-term gamma irradiation and ionization exposure. These plates are widely used in science, technology and industrial equipment. Protective properties of the plates are characterized by a lead equivalent: that is, by the thickness of lead layer, expressed in millimeters, that attenuates X-ray radiation in the same number of times as the given plate. Lead content in glasses is not less 66%.

Lead equivalent of glass plates at refraction index n_e=(1.7617±20) 10^-4 depending on their thickness is given below.

x-ray shielding glass plates made of TF5 glass type

glass thickness (mm)	lead equivalent at voltage 180-200 kV, not less
10	2.5
20	4.0
30	5.0
40	6.5
50	13.5

X-Ray shielding glass plates are manufactured in round and rectangular forms.

Operating surfaces of plates are finally polished; edges and bevels are good grinded. But plates could be supplied at sizes, forms and quality as per customer requirements.

Plates with standard dimensions are given below:

plates			thickness (mm)
rectangular		round
length (mm)	width (mm)	diameter (mm)
146	132	30,50,70,96,114,140,158,170,200,250	10,15,20,25,50
166	166
178	130
220	150
240	180
300	240
356	356
400	300
400	400
500	400
500	500
600	500

property	index	glass type
		TF5	TF105
refractive index	ne	1.7617±20*10-4
transmission coefficient in 10 mm glass layer, not less	tauA	0.979	0.975

Glass possesses high degree of transmittance that ensures optimal viewing. Within 500-600 nm wavelength, where human eye has the highest sensitivity, TF glass type has 97% transmittance in 10 mm glass layer.

The main applications are monitoring the x-ray process in medicine and industry, at mammography work stations (i.e. cancer therapy), in research and development (i.e. "glove-box").

All customer application features and specialties are discussed and realized.