- The Tube In A Medical Research X Ray Unit Uses Platinum Z 78 As It S Target 1 Use The Bohr Model To Estimate The Min 1 (91.23 KiB) Viewed 38 times
The tube in a medical research X-ray unit uses platinum (Z=78) as it's target. 1) Use the Bohr model to estimate the minimum kinetic energy electrons must have to in order for Ka X-rays to just appear in the X-ray spectrum of the tube. Ee = 80.6e3 eV Submit Help Your submissions: 80.6e3 Submitted: Saturday, May 14 at 7:46 PM Computed value: 80.6e3 Feedback: Correct! 2) Assuming the electrons are accelerated from rest through a voltage, V, what is the minimum voltage necessary to produce the Ka X-rays? V = 80600 V Submit Help Your submissions: 80600 Submitted: Saturday, May 14 at 7:49 PM Computed value: 80600 Feedback: Correct!
3) Assume the electrons are accelerated through the voltage calculated in part (2). What is the wavelength of the Ka line? λ = nm Submit 4) Now assume that the electrons are accelerated through twice the voltage calculated in part (2). What is the wavelength of the Ka line? A = nm Submit +