Device and method for measuring concentration of <222>Rn and <220>Rn synchronously by adopting electrostatic collection and solid nuclear track

[0035] Embodiment 1. A simultaneous measurement using electrostatic collection and solid nuclear track 222 Rn, 220 The device for Rn concentration consists of a box body 1, a third filter 2, a first aluminum diaphragm 3, a first solid nuclear track detector 4, a first filter 5, a second solid nuclear track detector 6, and a second solid nuclear track detector. Two aluminum diaphragms 7, a second filter 8, a high voltage module 9, a battery 10, a bottom plate 11 and a frame-shaped sealing ring 12 are composed.

[0036] The box body 1 is provided with a first measurement cavity 1-1, a second measurement cavity 1-2 and a high-voltage power supply cavity 1-3, the inner surfaces of the first measurement cavity 1-1 and the second measurement cavity 1-2 A layer of conductive metal material is plated on the top, and a first filter installation hole 1-4 for installing the first filter 5 is provided between the outer wall plate of the box body 1 and the first measurement chamber 1-1. The

[0040] Embodiment 2. A method of synchronous measurement using electrostatic collection and solid nuclear track 222 Rn, 220 The method of Rn concentration, its specific measurement and calculation process are as follows:

[0041] Start the high-voltage module 9 in the measuring device, and raise the low voltage of the battery 10 in the measuring device to 100-2000V through the high-voltage module 9, and the first solid nuclear track detector in the first measuring chamber 1-1 of the measuring device The surface of 4 is covered with a first aluminum diaphragm 3, and the surface of the second solid nuclear track detector 6 in the second measuring chamber 1-2 of the measuring device is covered with a second aluminum diaphragm 7, and the first aluminum diaphragm 3 and the second aluminum diaphragm 7 are connected to the ground terminal of the high-voltage module 9 through a wire, and the positive electrode of the high-voltage module 9 is connected to the inner surface of the first m