Measurement of ionization distributions at nanometre level in tissue-equivalent gas

Measurement of ionization distributions at nanometre level in tissue-equivalent gas 1 first-author 1 1 1 1 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000 The developed track detector consists of two parts: a small drift region to obtain a good tracking and a relatively large multiplication region for getting an enough high gain at low pressure. All the track detector can be moved in the direction perpendicular to the beam by means of a micrometric screw. An automatic system allows the counting gas to flow continuously at constant pressure through the detector during the measurements. The system can measure ionization distributions at a few nanometer range. Ionization distributions Nanometre level Radiobiological effects References Colautti P et al . Measurements of ionization distributions at nanometre level . In: Biophysical modeling of radiation effects . Bristol : Adam Hilgcr , 1992 , 269 〜 276 Measurements of ionization distributions at nanometre level Colautti P et al . Radiat Prot Dosim , 1994 , 52 ( 1-4 ): 329 Radiat Prot Dosim Top Project (kind B) of National Fundamental Research Supported by State Science and Technology Commission of China under contract No 950603 1997-10-05 1998-05-01 2021-02-05 1998 Nuclear Science and Techniques 2 9