If you do business online, Charge.com will enable you to accept credit cards on your website (and eBay) in real-time, and we will also give you our simple-to-use, web-based credit card processing virtual terminal so you can easily process phone and mail order transactions manually.
Q: A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 183 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. The beam is directed onto a 0.220-kg tumor, which receives a biologically equivalent dose of 153 rem.
Most of the hafnium produced is used in the production of control rods for nuclear reactors. Nuclear reactors. The nuclei of several hafnium isotopes can each absorb multiple neutrons. This makes hafnium a good material for use in the control rods for nuclear reactors. Its neutron-capture cross-section is about 600 times that of zirconium.