Please answer the following questions and refer to the figures below:

1. Analyze the intensity of the copper x-radiation as a function of the Bragg angle and with the aid of a LiF monocrystal

2. Analyze the intensity of copper x-radiation as a function of the Bragg angle with the aid of a KBr monocrystal

3. Determine the energy values of the characteristic x-rays of copper and compare them with the values that were determined based on the corresponding energy level diagram. Do so by completing the table below using the obtained spectra from the experiment

Plot 1: X-ray intensity of copper as a function of the glancing angle; LiF (100) monocrystal as Bragg analyzer R(35kV) Imp/s 23.0 * / 69 45.0 Imp/s - Rate at 35kV 6000 4000- 20.7 * / 2301.0 Imp/s 2000- 50.3 * / 1190.0 Imp/s 44.1 ' / 286.0 Imp/ 15 20 25 30 35 40 45 Plot 2: X-ray intensity of copper as a function of the glancing angle; KBr (100) monocrystal as Bragg analyzer R(35k V) Imp/s 1200- 14.0 * / 1247.0 1mp/s Rate at 35KV 1000- 800- 600- 28.2 * / 382.0 Imp/s 400- 12.7 * /274.0 mp/s 200- 25.4 " / 104.0 Imp/$ 44.8 * / 92.0 Imp/s 10.9 * /27.0 Imp/ 6.8 * /24.0 Imp/s 39.6 * / 30.0 Imp/s 51.3 / 19.0 Imp/s 57.8 * /21.0 Imp/s 69.4 * / 45.0 Imp/s 10 theta 20 30 40 50 60 70Table 1: Specific frequency to excite different atoms Anode Voltage: 35 kV Anode current: 1 mA Glancing Angle () Line Eexp (keV) LiF Crystal, diaphragm tube with 1 mm diameter, scanning range 3- 55 23 Ka 6945 n = 1 20.7 KB 2301 50.3 Ka 1190 n = 2 44.1 KB 286 KBr Crystal, diaphragm tube with 2 mm diameter, scanning range 3- 75 14 Ka 1247 n = 1 12.7 KB 274 28.2 Ka 382 n = 2 25.4 KB 104 44.8 Ka 92 n = 3 39.6 KB 30 69.4 Ka 45 n = 4 57.8 KB 21