A proton beam is used to irradiate a tumor. The beam is created starting with hydrogen...

A proton beam is used to irradiate a tumor. The beam is created starting with hydrogen gas, ripping off the electrons, and extracting the protons in an electric field. The protons are accelerated from approximately rest across a potential difference totaling 8.3 million Volts. The speed of the protons after acceleration is …

show step by step answer should be 4.0x10^7 m/s

Expert Solution

genius_generous answered 1 year ago

In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come...

In proton-beam therapy, a high-energy beam of protons is fired at a tumor. The protons come to rest in the tumor, depositing their kinetic energy and breaking apart the tumor’s DNA, thus killing its cells. For one patient, it is desired that 0.10 JJ of proton energy be deposited in a tumor. To create the proton beam, the protons are accelerated from rest through a 23 MVMV potential difference. What is the total charge of the protons that must be...

In proton beam therapy, a beam of high-energy protons is used to kill cancerous cells in...

In proton beam therapy, a beam of high-energy protons is used to kill cancerous cells in a tumor. In one system, the beam, which consists of protons with an energy of 2.8×10−11J, has a current of 72 nA. The protons in the beam mostly come to rest within the tumor. The radiologist has ordered a total dose corresponding to 3.8×10−3J of energy to be deposited in the tumor. Part A How many protons strike the tumor each second? Express your...

A proton beam in an accelerator carries a current of 145 µA. If the beam is...

A proton beam in an accelerator carries a current of 145 µA. If the beam is incident on a target, how many protons strike the target in a period of 29.0 s? protons

In a hydrogen atom, a proton is separated from an electron by an average distance of...

In a hydrogen atom, a proton is separated from an electron by an average distance of about 5.3 10-11 meters. Use the information below to calculate the force of attraction by the electron on the proton. Electron Mass = 9.11 10-31 kg Proton Mass = 1.67 10-27 kg Elementary Charge = 1.602 10-19 C Coulomb's Constant (k) = 8.99 109 Nmm/CC Avagadro's Number = 6.02 1023 atoms/mole

In one model of the hydrogen atom, an electron orbits a proton in a circle of...

In one model of the hydrogen atom, an electron orbits a proton in a circle of radius 5.28×10-11 m with a speed of 2.18×106 m/s. What is the acceleration of the electron in this model? What is the period of the motion?

8) Press Add tumor and try to selectively target the hydrogen nuclei at the location of...

8) Press Add tumor and try to selectively target the hydrogen nuclei at the location of the tumor. You can achieve this by changing the frequency of the radio wave or by changing the strength of the main magnetic field. Note: in an actual MRI neither is done and the gradient magnetic field is changed. Explain why changing the strength of the gradient field allows the selective stimulation of the hydrogen nuclei in one slice.

what are oncogenes? how were tumor retroviruses used to discover oncogenes? what are tumor suppressors?

what are oncogenes? how were tumor retroviruses used to discover oncogenes? what are tumor suppressors? what are the differences between tumor suppressors and oncogenes? how does p53 function to induce cell cycle arrest and apoptosis in response to stress?

A standard hydrogen atom consists of one proton and one electron. The net electric charge of the hydrogen atom is equal to

A standard hydrogen atom consists of one proton and one electron. The net electric charge of the hydrogen atom is equal toGroup of answer choices1.6 x 10-19 C.3.2 x 10-19 C.4.8 x 10-19 C.6.4 x 10-19 C.zero.

A 5.0 mm diameter proton beam carries a total current of 1.5mA. The current density in...

A 5.0 mm diameter proton beam carries a total current of 1.5mA. The current density in the proton beam, which increases with distance from the center, is given by J = Jedge(r/R), where R is the radius of the beam and Jedge is the current density at the edge. I calculated that 9.375 x 10^15 protons are delivered by the proton beam each second, but I do not know where to start in calculating the value of Jedge. I am...

In a colliding beam storage ring an antiproton going east passes a proton going west, the...

In a colliding beam storage ring an antiproton going east passes a proton going west, the distance of closest approach being . The kinetic energy of each particle in the lab frame is 93GeV , corresponding to γ=100 . In the rest frame of the proton, what is the maximum intensity of the electric field at the proton due to the charge on the antiproton? For about how long, approximately, does the field exceed half its maximum intensity?

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