EKHI

Curve 1

Temperature K: 4.2 Wavelength Range, µm: 0.185-0.771 Geometry θ θ' ω': 0° 0° Composition (weight percent), Specifications, and Remarks: Ultra pure crystal (1 mm thick) from Visor Lab.; data extracted from smooth curve.

Wavelength / 𝜇m	Transmittance /
0.185	0.582
0.188	0.564
0.195	0.738
0.206	0.551
0.216	0.664
0.224	0.736
0.227	0.78
0.245	0.809
0.252	0.857
0.269	0.838
0.277	0.859
0.293	0.906
0.331	0.925
0.362	0.942
0.365	0.933
0.373	0.918
0.373	0.925
0.532	0.991
0.565	0.998
0.606	0.995
0.712	0.998
0.771	0.993

Curve 2

Temperature K: 4.2 Wavelength Range, µm: 0.199-0.780 Geometry θ θ' ω': 0° 0° Composition (weight percent), Specifications, and Remarks: The above specimen and conditions except after 27 hrs total irradiation time with 50 KeV energy limit x-rays.

Wavelength / 𝜇m	Transmittance /
0.199	0.125
0.211	0.371
0.217	0.459
0.234	0.489
0.241	0.469
0.263	0.349
0.272	0.312
0.284	0.245
0.295	0.195
0.307	0.179
0.326	0.174
0.33	0.165
0.348	0.261
0.351	0.136
0.37	0.0033
0.378	0.00375
0.391	0.00771
0.4	0.0254
0.405	0.0611
0.406	0.126
0.423	0.637
0.431	0.865
0.44	0.968
0.459	0.953
0.476	0.957
0.499	0.94
0.531	0.979
0.568	1.0
0.676	1.0
0.713	0.993
0.78	0.973

Curve 3

Temperature K: 4.2 Wavelength Range, µm: 0.213-0.782 Geometry θ θ' ω': 0° 0° Composition (weight percent), Specifications, and Remarks: The above specimen and conditions except after 44 hrs total irradiation time with 50 KeV energy limit x-rays.

Wavelength / 𝜇m	Transmittance /
0.213	0.27
0.221	0.385
0.228	0.399
0.245	0.357
0.258	0.256
0.305	0.0843
0.312	0.0815
0.324	0.0752
0.331	0.00822
0.35	0.00054
0.372	0.0016
0.378	0.0486
0.397	0.228
0.41	0.811
0.419	0.908
0.435	0.873
0.451	0.9
0.482	0.955
0.514	0.991
0.544	0.991
0.578	0.971

Formation and Bleaching of X-ray induced F-centers in CaF2

Formation and Bleaching of X-ray induced F-centers in CaF₂