Ruggedized Crystals design are mainly used in the fields of petroleum logging and geological exploration. Due to the harsh environment to be involved like high temperature above 150 degree C, certain shock and vibration, these crystals have to be applying with unique resistant material and special package technology. Epic Crystal offer series of ruggedized crystals including NaI(Tl), CsI(Na), LaBr3(Ce) and CeBr3. They have excellent mechanical shock resistance, temperature shock resistance and long lifetime. Whether used in wireline logging or measurement while drilling(MWD), our crystals are good choice for both reliability and performance.
PRODUCT DETAILS
| Crystals | NaI(Tl), CsI(Na), LaBr3(Ce), CeBr3 | |
| Classification | General Logging | Measurement While Drilling(MWD) |
| Shock | 100 g@11 ms, 3 shocks per axis(X, Z) | 1000 g@1.0 ms, 3 shocks per axis(X, Z) |
| Crystal sizes(max) | Diameter 2"x8" Length | Diameter 1.5"x6" Length |
Random vibration | 5 grms(X, Y), 50-1000 Hz | 20 grms(X, Y), 50-1000 Hz |
| Vibration PSD profile | 50-300 Hz @flat, 300-1000 Hz @6dB/octave, 5 minutes duration | |
| Vibration acceptable criteria | Vibration induced counts rate1) is not to be exceeding the σ2) | |
| Housing | Stainless Steel/Titanium | |
| Glass | Quartz/Sapphire | |
| Sealed methold | Welded | |
| Operating temperature | -20 to 175 degree C | |
| Temperature gradient | <=3 degree C per minute | |
| 1) Vibration induced count rate is under the same test condition, the average counting rate change of vibration state relative to static state. | ||
| 2) σ=SQRT(Average count rate under static state). | ||
| Custom temperature, Shock and Vibration standard design specification available upon request. | ||
| Aluminium and Stainless Steel housing with high temperature epoxy resin sealed window for general logging is available. | ||
