Essentially part of this arrangement is the source of artificial gamma radiation (1). The main advantage of this kind source in radiation research applications is the possibility remotely handle excluding any pollution in the case of damage.

The preliminary computation and mathematical simulation have revealed that the gamma quant generator has advantages upon the traditional radioisotopes sources in technical characteristics.

The working out of the generator has been carrying for the most difficult application case - a deep borehole with high temperature and pressure. It was necessary to minimize dimensions and the main power that has resulted the minimum impulse duration.

Several variants compact radiation sources was researched, results is introduce. As a result of the research the following parameters have been received (2).

1.	Dimensions:
		Diameter	60mm
		Length	300mm
		Weight	2mm
2.	Electron source specification:
		Kinetic energy	500 KeV
		Pulse duration	10ns
		Impulse frequency	10Hz

The attained high intensity of the irradiation and small pulse duration high intensity of formulation of a new measure method and special measure equipment.

Also, with the energy level of radioisotopic sources, the high irradiation intensity per impulse raises the reliability of results in comparison with a radioisotope sources.

Using high-speed detector in the couple, gamma quant generator can be used for research in hydrology, geophysical assessment of potential sites for the disposal of high-level radioactive wastes investigations and defectoscopy of borehole casing columns, rock density measure, etc. REFERENCES

1. A. Mozelev. Gamma quant generator for geophisical researches. International Simposium on Geologic Disposal of Spent Fuel, Hieghlevel and Alpha-bearing Wastes. Antwerp. Belgium, 1992
2. A. Mozelev. Highvoltage Discharge etc. In Proc. ISDEIV96, Berkeley 96, p. 599