Proportional Counters
An X-ray proportional counter (PC) is a detector that makes use of the ionization effect of X-rays on an internal gas that may be either xenon or neon (for low energy X-rays). Its signal can be amplified by applying a high voltage to the center electrode. A pulse-height signal proportional to the energy of the X-rays applied can also be obtained.
PCs are suitable for measuring thickness of metal plating.
Features
- Long life and high stability
Chemical cleaning and high-temperature exhausting under vacuum condition on the detector completely eliminates impurities.
Strict management of the filler gas. - Improved shock resistance
Lineup
| TUBE TYPE | E6858 | E6859B | E6859C | E6864 | E6860(C) | E6860(P) | E6874 |
|---|---|---|---|---|---|---|---|
| General Specifications | |||||||
| Fill Gas | Xe+ additive gas |
Ne+ additive gas |
|||||
| Housing Material |
Stainless steel | ||||||
| Gas pressure | approx. 100kPa |
approx. 90kPa |
approx. 100kPa |
approx. 100kPa |
approx. 70kPa |
approx. 100kPa |
|
| Maximum Length |
252mm | 204mm | 204mm | 178mm | 156mm | 126mm | 120mm |
| Maximum Diameter |
50.8mm | 50.8mm | 50.8mm | 50.8mm | 38mm | 25.4mm | |
| Effective Length |
175mm | 142mm | 142mm | 116mm | 75mm | 68mm | |
| Connector | Pin | MHV | MHV | MHV | MHV | Pin | SHV or MHV |
| Operating Temperature |
-20°C -70°C |
-20°C -70°C |
-20°C -70°C |
-20°C -70°C |
-20°C -70°C |
-20°C -70°C |
|
| Window Specifications | |||||||
| Material | Beryllium | Beryllium | Beryllium | ||||
| Thickness | 0.3mm | 0.2mm | 0.1mm | 0.1mm | 0.062mm | 0.025mm | |
| Dimention | 40mm(W ) × 82mm(L) |
40mm(W ) × 82mm(L) |
26mm(W ) × 52mm(L) |
26mm(W ) × 52mm(L) |
20mm(W ) × 20mm(L) |
9.5mm(W ) × 25.4mm(L) |
|
| Electrical Specifications | |||||||
| Operating Voltage Range |
1,900-2,300V | 1,800-2,100V | 1,900-2,300V | 1,900-2,300V | 1,100-1,400V | 1,300-1,500V | |
| Recommended Voltage |
2,000V | 1,850V | 2,000V | 2,000V | 1,300V | 1,360V | |
| Resolution | |||||||
| Fe-55(5.9keV) | 21%FWHM (Max.) |
19%FWHM (Max.) |
19%FWHM (Max.) |
19%FWHM (Max.) |
20%FWHM (Max.) |
20%FWHM (Max.) |
|
| Cd-109 (22.1keV) |
10%FWHM (Max.) |
9%FWHM (Max.) |
9%FWHM (Max.) |
9%FWHM (Max.) |
- | - | |
