Geiger counter
Geiger counter tube (GM tube) is a gas ionization detector working in the Geiger-Maitreya region. Because its amplification factor is much greater than 1, the output pulse amplitude has nothing to do with the original ionization, so the GM tube can only be used for pulse counting, can not be used for energy spectrum measurement. GM tube has the advantages of low price, large output amplitude and simple supporting circuit, which can be widely used in α, β, X, & gamma; and cosmic ray detection.
specification selection:
|
Application |
Model |
Dimensions |
Main Specification |
|
Environmental low background |
GD4204 |
Ф 24mm × 238mm |
1. Recommended & gamma; Range: 0.02 μGy/h ~ 300 μGy/h; 2. Sensitivity response: ~ 16cps/μGy/h @ Cs137; 3. Initial voltage: 350V ~ 430V, recommended working voltage: 500V. 4. Working temperature -40 ℃ ~ 50 ℃. |
|
Environmental low background |
GD4209 |
Ф 24mm × 102mm |
1. Energy 48keV ~ 3MeV, error: ≤ 40% @ 33keV ~ 80keV,≤ 30% @ 80keV ~ 3MeV; 2. Recommended & gamma; Range: 0.1 μGy/h ~ 1mGy/h; 3. Sensitivity response: ~ 9cps/uGy/h @ Cs137; 4. Initial voltage: 350V ~ 430V, recommended working voltage: 450V; 5. Maximum angular sound: ~ 35%; 6. Working temperature -40 ℃ ~ 50 ℃. |
|
low range |
GD4104 |
Ф 16mm × 109mm |
1. Energy 33keV ~ 3MeV, error: ≤ 40% @ 33keV ~ 80keV,≤ 30% @ 80keV ~ 3MeV 2. Recommended & gamma; Range: 0.1 μSv/h ~ 5mSv/h; 3. Sensitivity response: ~ 2.2cps/uSv/h @ Cs137; 4. Initial voltage: 320V ~ 370V, recommended working voltage: 450V; 5. Maximum angular response: ~ 50%. 6. Working temperature -40 ℃ ~ 50 ℃. |
|
low range |
GD4109 |
Ф 16mm × 64mm |
1. Energy 33keV ~ 3MeV, error: ≤ 40% @ 33keV ~ 80keV,≤ 30% @ 80keV ~ 3MeV 2. Recommended & gamma; Range: 0.1 μSv/h ~ 10mSv/h; 3. Sensitivity response: ~ 1.1cps/uSv/h @ Cs137; 4. Initial voltage: 320V ~ 370V, recommended working voltage: 450V; 5. Maximum angular sound: ~ 35%; 6. Working temperature -40 ℃ ~ 50 ℃. |
|
Medium Range |
GD4064 |
Ф 12mm × 59mm |
1. Energy 33keV ~ 3MeV, error: ≤ 40% @ 33keV ~ 80keV,≤ 30% @ 80keV ~ 3MeV 2. Recommended & gamma; Range: 1uSv/h ~ 100mSv/h; 3. Sensitivity response: ~ 700cps/mSv/h @ Cs137; 4. Initial voltage: 320V ~ 370V, recommended working voltage: 450V; 5. Maximum angular response: ~ 45%. 6. Working temperature -40 ℃ ~ 50 ℃. |
|
High Range |
GD4034 |
Ф 13mm × 40mm |
1. Energy 48keV ~ 3MeV, error: ≤ 40% @ 48keV ~ 80keV,≤ 30% @ 80keV ~ 3MeV 2. Recommended & gamma; Range: 0.1mSv/h ~ 10Sv/h; 3. Sensitivity response: ~ 56cps/mSv/h @ Cs137; 4. Initial voltage: 320V ~ 370V, recommended working voltage: 450V; 5. Maximum angular response: ~ 35%. 6. Working temperature -40 ℃ ~ 50 ℃. |
|
Ultra-high range |
GD4010 |
Ф 10mm × 43mm |
1. Recommended & gamma; Range: 1mSv/h ~ 100Sv/h; 2. Sensitivity response: ~ 10cps/mSv/h @ Cs137; 3. Initial voltage: 320V ~ 370V, recommended working voltage: 450V; 4. Maximum angular response: ~ 35%. 5. Working temperature -40 ℃ ~ 50 ℃. |
|
mica end window |
GD5250 |
ф 25mm × 28mm |
1. The thickness of mica window is 2.0mg/cm2, and the effective diameter of mica window is 22.5mm; 2,Bsensitivity ≥ 1cps/(Bq/cm2)@ strontium yttrium 90; 3,gsensitivity ≥1.3 cps/uSv/h; 4, starting voltage 285V~350V, recommended working voltage 450V. 5. Working temperature -40 ℃ ~ 50 ℃. |
