A proton beam in an accelerator carries a current of 125 μA. If the beam is incident on a target, how many pinions strike the target in a period of 23.0s??
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A proton beam in an accelerator carries a current of 125 μA. If the beam is incident on a target, how many pinions strike the target in a period of 23.0s??
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- 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^−11 J, has a current of 80 nA. The protons in the beam mostly come to rest within the tumor. The radiologist has ordered a total dose corresponding to 3.4×10^−3 J of energy to be deposited in the tumor. How long should the beam be on in order to deliver the required dose?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^−11 J, has a current of 80 nA. The protons in the beam mostly come to rest within the tumor. The radiologist has ordered a total dose corresponding to 3.4×10^−3 J of energy to be deposited in the tumor. a) How many protons strike the tumor each second? Enter your answer as a number of protons. b) How long should the beam be on in order to deliver the required dose?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 x 10-11 J, has a current of 80 nA. The protons in the beam mostly come to rest within the tumor. The radiologist has ordered a total dose corresponding to 3.6 x 10-3 J of energy to be deposited in the tumor.a. How many protons strike the tumor each second?b. How long should the beam be on in order to deliver the required dose?
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- a) What energy (in J) is dissipated by a lightning bolt having an 18,500 A current, a voltage of 2.05 ✕ 102 MV, and a length of 1.00 ms? b) What mass (in kg) of tree sap could be raised from 18.0°C to its boiling point and then evaporated by this energy, assuming sap has the same thermal characteristics as water?In proton bean therapy, a beam of high-energy protons is used to kill canerous 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 80 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^−3 J of energy to be deposited in the tumor.Part A How many protons strike the tumor each second?Express your answer as a number of protons.Part B How long should the beam be on in order to deliver the required dose?Express your answer with the in seconds.++ A large cyclotron directs a beam of He nuclei onto a target with a beam current of 0.270 mA. (a) How many Hett nuclei per second is this? ++ Не nuclei/s (b) How long (in s) does it take for 1.40 C to strike the target? (c) How long (in s) before 1.25 mol of He*+ nuclei strike the target?