Broadband Impedances of Accelerating Structures: Perturbation Theory*

نویسنده

  • S. HEIFETS
چکیده

A perturbation theory for broadband impedance cdcuhtianr ha been developed, allowing evdu&on of impedanas fur au 4bccelera* rtructure of a rather arbitmuy shape. Generd fomulas are given for the longitudind aud transveme impedarum. The method is &e&A by cdchtingimpedan~andcompkng resulta with thoee for l ~~cturea previously studied. Severd new vaults, includLy impedance of a taper, ur presented.

برای دانلود رایگان 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

Transverse Impedance Bench Measurements in Nlc/jlc Accelerating Structures*

The wire method is a more rapid and less costly method to measure impedances of RF components compared to methods using a beam. A setup using a single displaced wire to excite and measure transverse resonant modes in accelerating structures for the Next Linear Collider/ Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into and out of the structure using two matching s...

متن کامل

Accuracy of Microwave Cavity Perturbation Measurements

Techniques based on the perturbation of cavity resonators are commonly used to measure the permittivity and permeability of samples of dielectric and ferrite materials at microwave frequencies. They are also used to measure the local electric and magnetic field strengths in microwave structures including the shunt impedances of cavity resonators and the coupling impedances of slow-wave structur...

متن کامل

Rhic 28 Mhz Accelerating Cavity System*

The 28 MHz accelerating system consists of a quarter wave cavity driven by an inductively coupled 100kW tetrode amplifer and 1kW solid state driver amplifer. 40dB of rf feedback closed around the cavity and amplifers reduces small perturbations within the loop by a factor of 100, and reduces the time required to shift the phase at transition by a factor of 10, limited by the saturation of the d...

متن کامل

Wire Measurement of Impedance of an X-band Accelerating Structure

Several tens of thousands of accelerator structures will be needed for the next generation of normal conducting linear colliders known as the GLC/NLC (Global Linear Collider/Next Linear Collider). To prevent the beam being driven into a disruptive BBU (Beam Break-Up) mode or at the very least, the emittance being significantly diluted, it is important to damp down the wakefield left by driving ...

متن کامل

Evaluation of the Accelerating Factor in the Iranian Oil Nationalization Movement Based on Neil Smelser’s Reform Theory

The main objective of this article is to identify and evaluate the accelerating factor in the Iranian oil nationalization movement. The main question is: what was the accelerating factor that put the Iranian oil nationalization movement into practice? The article relies on the reform movement theory of Neil Smelser. For this purpose, fraud in the 16thnational election of the parliament, and est...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1992