MM Wave Sources Working
Group-Leader: Rick Temkin, MIT (firstname.lastname@example.org)
Co-Group-Leader: Glenn Scheitrum, SLAC (glenn@SLAC.Stanford.EDU)
The Theme is:
-Identify the most promising
concepts for achieving High Power Output at Millimeter
Wavelengths for driving future accelerators.
The grand challenge in advanced
accelerator research is to identify promising concepts
for future accelerators. The High Energy Physics community
would like to have an electron accelerator capable of
reaching the TeV and multi-TeV range with the very high
luminosity needed to obtain new data on a reasonable
time scale. Millimeter wave accelerators combine the
very attractive features of being able to achieve high
gradient, while also being able to operate at high average
power and efficiency. The high average power and efficiency
issue go to the heart of our capability to build a real
machine that can achieve the required high luminosity,
thus making millimeter wave accelerators very attractive
for accelerator applications.
After reviewing the state of the art of millimeter wave
sources and auxiliary components, this group will explore
the possibility of a future linear collider upgrade
to a frequency higher that the NLC, and in particular
identify the breakthroughs in millimeter wave sources
and components that would be required.
The plan of the MM Wave Sources
Working group is to:
1.) Evaluate the state-of-the-art
in millimeter wave sources.
2.) Evaluate the state-of-the-art in auxiliary components
at millimeter wavelengths.
3.) Identify and explore promising concepts for millimeter
wave sources capable of achieving at least 100? MW of
output power in the 35 to 100 GHz range.
4.) Evaluate the auxiliary components and technologies
needed to implement the high power millimeter wave sources,
such as power dividers, delay lines, etc.
5.) Evaluate the configuration needed for a millimeter
wave accelerator system, such as an upgrade to the X-Band
6.) Evaluate modular sources that can be combined to
achieve >10 MW at millimeter wavelengths. Lithographically
fabricated sources can be produced in parallel on a
single substrate along with the waveguide combiners.
Alternatively, both sources and accelerator can be combined
on a single substrate.