31-05-2012, 05:36 PM
SPINTRONICS - SCANNER FOR CANCER DETECTION
[attachment=23767]
INTRODUCTION:
An emerging research domain in electronics focused on spin-dependent phenomena applied to electronic devices is called Spintronics. Spintronics is promising because manipulations are based not only on the charge of electrons but also their spin. This unique feature enables them to perform new functions making way for remarkable improvements in electronic systems and devices used in photonics, data processing and communications technologies.
SPINTRONICS:
Spintronics, or spin electronics, refers to the study of the role played by electron spin in solid state physics, and possible devices that specifically exploit spin properties instead of or in addition to charge degrees of freedom. In spintronics electron spin, in addition to charge, is manipulated to yield a desired outcome.
Applications
Spintronic devices are used in the field of mass-storage devices; recently (in 2002) IBM scientists announced that they could compress massive amounts of data into a small area, at approximately one trillion bits per square inch (1.5 Gbit/mm²) or roughly 1 TB on a single sided 3.5" diameter disc. The storage density of hard drives is rapidly increasing along an exponential growth curve known as Kryder's Law.
CANCER CELLS:
Cancer cells are the somatic cells which are grown into abnormal size. The cancer cells have different electromagnetic pattern when compared to normal cells. For many types of cancer, it is easier to treat and cure the cancer if it is found early. There are many different types of cancer, but most cancers begin with abnormal cells growing out of control, forming a lump that's called a tumor.
POLARISED ELECTRON SOURCE:
A beam of electrons is said to be “polarized” if their spins point, on average, in a specific direction. There are several ways to employ spin on electrons and to control them. The requirement for this paper is an electron beam with all its electrons polarized in a specific direction.
[attachment=23767]
INTRODUCTION:
An emerging research domain in electronics focused on spin-dependent phenomena applied to electronic devices is called Spintronics. Spintronics is promising because manipulations are based not only on the charge of electrons but also their spin. This unique feature enables them to perform new functions making way for remarkable improvements in electronic systems and devices used in photonics, data processing and communications technologies.
SPINTRONICS:
Spintronics, or spin electronics, refers to the study of the role played by electron spin in solid state physics, and possible devices that specifically exploit spin properties instead of or in addition to charge degrees of freedom. In spintronics electron spin, in addition to charge, is manipulated to yield a desired outcome.
Applications
Spintronic devices are used in the field of mass-storage devices; recently (in 2002) IBM scientists announced that they could compress massive amounts of data into a small area, at approximately one trillion bits per square inch (1.5 Gbit/mm²) or roughly 1 TB on a single sided 3.5" diameter disc. The storage density of hard drives is rapidly increasing along an exponential growth curve known as Kryder's Law.
CANCER CELLS:
Cancer cells are the somatic cells which are grown into abnormal size. The cancer cells have different electromagnetic pattern when compared to normal cells. For many types of cancer, it is easier to treat and cure the cancer if it is found early. There are many different types of cancer, but most cancers begin with abnormal cells growing out of control, forming a lump that's called a tumor.
POLARISED ELECTRON SOURCE:
A beam of electrons is said to be “polarized” if their spins point, on average, in a specific direction. There are several ways to employ spin on electrons and to control them. The requirement for this paper is an electron beam with all its electrons polarized in a specific direction.