A 9.0×10−2 kg tumor is treated with a high-energy proton beam. If the equivalent dose delivered to the tumor is 1500 rem, how much energy did the tumor absorb?
A 9.0×10−2 kg tumor is treated with a high-energy proton beam. If the equivalent dose delivered...
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. As the protons stop in the tumor, their kinetic energy breaks apart the tumor's DNA, thus killing the tumor cells. For one patient, it is desired to deposit 9.0×10−2 J of proton energy in the tumor. To create the proton beam, protons are accelerated from rest through a 1.1×104 kV potential difference. What is the total charge of the protons that must be fired at the tumor?
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. As the protons stop in the tumor, their kinetic energy breaks apart the tumor's DNA, thus killing the tumor cells. For one patient, it is desired to deposit 9.0×10−2 J of proton energy in the tumor. To create the proton beam, protons are accelerated from rest through a 1.1×104 kV potential difference. What is the total charge of the protons that must be fired at the tumor?...
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. As the protons stop in the tumor, their kinetic energy breaks apart the tumor's DNA, thus killing the tumor cells. For one patient, it is desired to deposit 0.10 J of proton energy in the tumor. To create the proton beam, protons are accelerated from rest through a 8.0×103 kV potential difference. Part A What is the total charge of the protons that must be fired at...
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 84 nA. The protons in the beam mostly come to rest within the tumor. The radiologist has ordered a total dose corresponding to 3.2×10−3J of energy to be deposited in the tumor. Part A How many protons strike the tumor each second? Express your...
In proton-beam therapy, a high-energy beam of protons is fired at a tumor. As the protons stop in the tumor, their kinetic energy breaks apart the tumor's DNA, thus killing the tumor cells. For one patient, it is desired to deposit 0.10 J of proton energy in the tumor. To create the proton beam protons are accelerated from rest through a 1.1x104 kV potential difference What is the total charge of the protons that must be fired at the tumor?...
A 60Co source with activity 2.5×10−4 Ci is imbedded in a tumor that has mass 0.480 kg . The source emits γ photons with average energy 1.25 MeV. Half the photons are absorbed in the tumor, and half escape. a) What energy is delivered to the tumor per second? E = 9.3×10−7 J/s b) What absorbed dose (in rad) is delivered per second? D= 1.9×10−4 rad c) What equivalent dose (in rem) is delivered per second if the RBE for these...
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 125 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. The beam is directed onto a 0.180-kg tumor, which receives a biologically equivalent dose of 253 rem. How many nuclei are in the beam?
A 50 -rad dose of radiation is administered to a cancer patient (mass m-55 kg). If all this radiation is absorbed by the tumor, how much energy is absorbed? Submit Answer Tries 0/10 A 50 -rad dose of radiation is administered to a cancer patient (mass m-55 kg). If all this radiation is absorbed by the tumor, how much energy is absorbed? Submit Answer Tries 0/10
Constants A cyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. Deuterons are nuclei of deuterium, an isotope of hydrogen consisting of one neutron and one proton, with total mass 3.34 x 10-27 kg. The deuterons exit the cyclotron wit a kinetic energy of 4.80 MeV You may want to review (Pages 778 - 783)
A cyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. Deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. The deuterons exit the cyclotron with a kinetic energy of 5.90 MeV . What is the speed of the deuterons when they exit? if the magnetic field inside the cyclotron is 1.25 T, what is...