Hi, there is some information you requested. It has been taken and translated with google from russian's docs.
Exposure to radiation (background) radiation
*
****Radiation (background) exposure of crew refers to
one of the most harmful, health hazards flight labor.
****The results of studies of background radiation in the sun cabins voyage
conditions, carried out by specialists GosNII GA, US
radiobiologists in 1988 - 1993 years., have shown that the radiation dose members
The flight crew at altitudes:
****- 9000 m up 226.8 micro-roentgen per hour (md per hour);
****- At an altitude of 10,000 m - 307 md per hour;
****- At an altitude of 11,000 m - 351 md per hour;
****- At an altitude of 12,000 m - 404 md per hour.
****At the same time the level of radiation from the earth and to a height of 1000 m
was 9.99 md per hour.
****Thus, the dose of crew at altitudes of
9,000 to 12,000 meters higher than the natural background radiation from the earth:
****- At a height of 9000 m - 31 times;
****- At an altitude of 11,000 m - 35 times;
****- At a height of 12,000 m - 41 times.
****In addition, at altitudes of 10,000 - 12,000 m solar flares
increasing the dose rate within 0.7 hours
200 mrem / hr, and sometimes up to 2000 mrem / hr.
****In accordance with the recommendations of the International Commission on
international units (Publication MKRZM 40) should be considered
crewmembers as professionals working in conditions
ionizing radiation dose comparable to that obtainable
nuclear workers.
****This increase in radiation exposure of crew,
starting from a height of 6000 m, leads primarily to a significant
weakening of the immune system of the body, has together with harmful
chemical impurities cabin air carcinogenic and mutagenic
influence on the organism, the development of a number of diseases, including
development of cancer; so that cancer mortality among
crew members of the aircraft is 60 cases per 100,000 patients.
****Additionally, the flight crew is under the constant influence
Microwave radiation, the sources of which are ground-based radar
system of air traffic control and on-board units
navigation and radar systems Sun.
If you want, i can email to you full version of the document (russian langage)