Energetic electrons in the energy range from 10 keV to 600 keV were observed when 28 fs, $7\times10^{16}W/cm^2$ laser pulses interacted with atomic Argon and Xenon clusters. In order to measure energy and number of electrons, Thermo-luminescence dosimeters (TLDs) are used. Hot electrons with energy higher than 100 keV were measured in laser-cluster interaction at this modest laser intensity and the maximum electron energy observed was more than 500 keV. These hot electrons are created through a resonance absorption. In addition, with the attachment of TLDs around a hemisphere, very directional hot electron jet emission was observed along the laser propagation direction. Channel betatron resonance is believed as a main accelerating mechanism for this group of hot electrons.
