Tube: SI-29BG (CИ-29БГ) Sensitive Small Geiger Muller

Pictures:

geiger tube SI29BG 1 s geiger tube SI29BG 2 s geiger tube SI29BG 3 s
dismantled_si-29BG_tube_1 dismantled_si-29BG_tube_2 dismantled_si-29BG_tube_3

Details:

Compact Geiger Muller tube, the SI-29BG shows an excellent sensitivity especially when taking the small sized into account. As the name shows, it was designed for hard beta and gamma radiation.

Notes on sensitivity:

This tube offers a moderate sensitivity, but adding the relatively small size, makes it a convenient choice as a radiation detection element in handheld dosimeters and DIY circuits. The following chart shows the average of the background readings over a period of 24 hours and each point in the chart was computed using another average of 60 independent, consecutive measurements. The dosimeter used to take the measurements has 1 minute resolution.
SI29BG_sensitivity
Background readings: 12CPM for a background radiation level of 0.12uSv/h . That is under the SBM-20 response to the same radiation field.

Datasheet:

geiger tube SI29BG ds1 geiger tube SI29BG ds2

Links:

SI-29BG on gstubes

Videos:

Related Post

This article has 2 Comments

Leave a Reply