Fun with Transparency Films: the Rutherford Gold Foil Experiments and Beyond

نویسنده

  • Robert Gregory
چکیده

In the Rutherford-Geiger-Marsden experiments, alpha particles were streamed into a thin gold foil in an attempt to prove the plum pudding model of the atom. The results were one of the most striking examples of a discrepant event in scientific history. This demonstration provides the student with a visual sense of what Rutherford and his researchers expected to find, and then what they actually did find.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Rutherford Scattering of α-Particles

The scattering of α-particles off of gold foil was investigated. Attenuation of the α-particle beam was used to measure the thickness of the gold foil used. The coefficient of the Rutherford differential scattering cross section was experimentally determined to be (7.81 ± 5.35) × 10−25cm2, compared to 1.76 × 10−24cm2, with a reduced chi-squared of 3.4, which is a reasonable fit and confirms the...

متن کامل

Detection of High-Angle Alpha Particle Scattering through Gold Foil

In the beginning of the 20th century, physicists had begun to determine the structure of atoms. J.J. Thomson had discovered the presence of electrons negatively charged particles with a mass much less than the overall mass of the electron using cathode rays[1]. Thomson further hypothesized that the full structure of the atom consisted of electrons surrounded by a ”soup” of positive charge. This...

متن کامل

Determination of the flux of a neutron radioisotope source through gold activation method

Introduction: In recent years, the use of neutrons has increased in various fields such as medicine and industry. One of the important applications of neutrons is in medical research. Neutrons have greater linear energy transfer than gamma rays and are considered more dangerous radiation. Hence, the detection and determination of neutron dose is a very important and vital issu...

متن کامل

Improvement Physical Properties of Pullulan-Whey Protein Biocomposite Films with Nanoclay

In the current study, whey protein- pullulan- clay nanocomposite films are prepared by casting method. The effect of nanoclay at three concentrations (1%, 3% and 5%) on physical properties such as moisture content, solubility in water, water vapor permeability and transparency of whey protein- pullulan composite films investigated. The results show that the effect of nanoparticles on composite ...

متن کامل

Improvement Physical Properties of Pullulan-Whey Protein Biocomposite Films with Nanoclay

In the current study, whey protein- pullulan- clay nanocomposite films are prepared by casting method. The effect of nanoclay at three concentrations (1%, 3% and 5%) on physical properties such as moisture content, solubility in water, water vapor permeability and transparency of whey protein- pullulan composite films investigated. The results show that the effect of nanoparticles on composite ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006