Improved Capillary Guided Laser Wakefield Accelerators based on Diamond Materials

Period of Performance: 01/01/2012 - 12/31/2012


Phase 1 STTR

Recipient Firm

Euclid Techlabs, Llc
5900 Harper Rd # 102
Solon, OH 44139
Firm POC
Principal Investigator

Research Institution

Argonne National Laboratory
9700 South Cass Avenue
Lemont, IL 60439


Detection of smuggled nuclear materials concealed in cargo containers is an essential need for homeland security. A low cost and efficient method of scanning bulk cargo is to use a tunable energy gamma ray source. Laser plasma accelerators can currently produce (through Thomson backscattering) a gamma beam with the needed energy and positional scanning capability but are limited in intensity because of the low thermal conductivity of the sapphire capillary structure. We propose to develop a structure from artificial diamond that is compatible with the required intensity. Diamond has the highest thermal conductivity of any material, about 50 times larger than sapphire. Development of a diamond capillary structure will permit portable laser plasma sources of the requisite intensity to be constructed. We will complete thermal simulations of sapphire and diamond capillary devices. A diamond capillary device will be designed and fabricated. Initial testing of the structure will be performed at LBNL and the results evaluated. Commercial Applications and Benefits: Success of the proposed program will be a key step towards development of very compact, portable, and cost effective accelerators and gamma ray sources with applications in homeland security, basic research, and medicine.