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六硼化鑭燈絲（電鏡用品）（LaB6 Cathodes）
標準Denka M-3型六硼化鑭燈絲Standard Denka Model 3 LaB6 Cathodes，在SEM、TEM、X-Ray、Electron Beam Lithography等領域應用，六硼化鑭都是*的陰極材料。
特征：
- 低干擾
- 熔點高、熱穩定性好
- 低蒸發壓，減少材料損失
- 化學性質穩定
- 亮度高，10倍于鎢絲亮度，Denka M-3初始亮度值1 x 106 A/cm2。
- 壽命長，溫度和真空決定燈絲的使用壽命。在1550°C和 10-7 Torr時，M-3的使用壽命在500小時。
- 安裝方便
標準燈絲一般有三種形狀：
- 標準尖Standard Tips，也即90°圓錐體/圓尖，，半徑15µ。
- 平尖Flat (Truncated) Tips，圓錐體截去頂端。平尖是優先選擇的，穩定性和使用壽命是我們的主要考慮因素，亮度有時需要做出一點犧牲。平尖有兩種角度的椎體90°和60°，多種半徑尺寸可供選擇。
- 尖尖Sharp Tips，也即60°圓錐體/圓尖，半徑有5µ和10µ，當需要很高的初始亮度而使用壽命暫不考慮時，尖尖就是*選擇。
六硼化鑭燈絲（電鏡用品） 性能參數：
| 標準尖Standard Tips | 平尖Flat Tips | 尖尖Sharp Tips |
Brightness | About 10 times that of tungsten, | About 5 times that of tungsten, | Twice as bright as standard tips |
Saturation | Mono spot at about 1,500°C. | Mono spot at about 1,400°C | Almost the same as standard tips |
Crossover | Small (7-10µ) | Large (11-13µ) | Small (7-10µ) |
Angular distribution | Sharp1.6 x10-2 rad | Broad, 3.3-4.2x10-2 rad | Sharp1.6 x10-2 rad |
Used Temperature | Low temperature | Low temperature | High temperature. |
Lifetime | Long life but shorter than flat tips. | Long life; usable at low temperatures and crystallized end changes slowly. | Short |
Operation | Not so difficult. | Easy; thanks to its large spot size and broad adjusting range. | Difficult; Point adjustment needed! |
Stability | High | High; vulnerable to thermal expansion or vibration. | Middle;. Vulnerable to the thermal expansion or vibration. Adjustment is sometimes necessary. |
Technology Needed | High | Ordinary | Very high |
訂購信息：
貨號 | 產品描述 | 規格 |
80900-05 | Denka M-3 LaB6 Standard for JEOL 60-5UM | 個 |
80900-10 | Denka M-3 LaB6 Standard for JEOL 60-10UM | 個 |
80900-11 | Denka M-3 LaB6 Standard for JEOL 90-20UM | 個 |
80900-20 | Denka M-3 LaB6 Standard for JEOL 60-20UM | 個 |
80900-21 | Denka M-3 LaB6 Standard for JEOL 90-21UM | 個 |
80900-40 | Denka M-3 LaB6 Standard for JEOL 60--40UM | 個 |
80900-41 | Denka M-3 LaB6 Standard for JEOL 90-41UM | 個 |
80900-60 | Denka M-3 LaB6 Standard for JEOL 60-60UM | 個 |
80900-61 | Denka M-3 LaB6 Standard for JEOL 90-60UM | 個 |
80900-80 | Denka M-3 LaB6 Standard for JEOL 60-80UM | 個 |
80900-100 | Denka M-3 LaB6 Standard for JEOL 60-100UM | 個 |
80900-101 | Denka M-3 LaB6 Standard for JEOL 90-100UM | 個 |
80900-05 | Denka M-3 LaB6 Standard for JEOL JEOL 60-5UM | 個 |
80904-5 | Denka M-3 LaB6 Standard for KF SHARP 60-5UM | 個 |
80904-10 | Denka M-3 LaB6 Standard for KF SHARP 60-10UM | 個 |
80904-20 | Denka M-3 LaB6 Standard for KF FLAT TIP 60-20UM | 個 |
80904-21 | Denka M-3 LaB6 Standard for KF FLAT TIP 90-20UM | 個 |
80904-40 | Denka M-3 LaB6 Standard for KF FLAT TIP 60-40UM | 個 |
80904-41 | Denka M-3 LaB6 Standard for KF FLAT TIP 90-40UM | 個 |
80904-60 | Denka M-3 LaB6 Standard for KF FLAT TIP 60-60UM | 個 |
80904-61 | Denka M-3 LaB6 Standard for KF FLAT TIP 90--60UM | 個 |
80904-80 | Denka M-3 LaB6 Standard for KF FLAT TIP 60-80UM | 個 |
80904-81 | Denka M-3 LaB6 Standard for KF FLAT TIP 90-80UM | 個 |
80904-100 | Denka M-3 LaB6 Standard for KF FLAT TIP 60-100UM | 個 |
80904-101 | Denka M-3 LaB6 Standard for KF FLAT TIP 90-100UM | 個 |
80906-5 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-5UM | 個 |
80906-10 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-10UM | 個 |
80906-11 | Denka M-3 LaB6 Standard for CAMBRIDGE 90-20UM | 個 |
80906-20 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-20UM | 個 |
80906-21 | Denka M-3 LaB6 Standard for CAMBRIDGE 90-40UM | 個 |
80906-40 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-40UM | 個 |
80906-41 | Denka M-3 LaB6 Standard for CAMBRIDGE 90-60UM | 個 |
80906-60 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-60UM | 個 |
80906-61 | Denka M-3 LaB6 Standard for CAMBRIDGE 90-80UM | 個 |
80906-80 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-80UM | 個 |
80906-81 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-100UM | 個 |
80906-100 | Denka M-3 LaB6 Standard for CAMBRIDGE 60-100UM | 個 |
80908-5 | Denka M-3 LaB6 Standard for HITACHI 60-5UM | 個 |
80908-10 | DENKA M3-H2 LAB6 FOR HITACH 60-10UM | 個 |
80908-11 | DENKA M3-H2 LAB6 FOR HTIACHI 90-20UM | 個 |
80908-20 | DENKA M3-H2 LAB6 FOR HITACHI 60-20UM | 個 |
80908-21 | DENKA M3-H2 LAB6 FOR HITACHI 90-40UM | 個 |
809098-40 | DENKA M3-H2 LAB6 FOR HITACHI 60-40UM | 個 |
80908-41 | DENKA M3-H2 LAB6 FOR HITACHI 90-60UM | 個 |
80908-60 | DENKA M3-H6 LAB6 FOR HITACHI 60-60UM | 個 |
80908-61 | DENKA M3-H2 LAB 6 FOR HITACHI 90-60UM | 個 |
80908-80 | DENKA M3-H6 LAB6 FOR HITACHI 60-80UM | 個 |
80908-81 | DENKA M3-H2 LAB6 FOR HITACHI 90-100UM | 個 |
80908-100 | DENKA M3-H6 LAB6 FOR HITACHI 60-100UM | 個 |
80908-10 | DENKA M3-H2 LAB6 FOR HITACH 60-10UM | 個 |
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