Copper (Cu)
Description
Copper is a metal that is commonly used as an ultraviolet photocathode material. It has a workfunction of 4.7 eV which is just low enough to be driven with the fourth harmonic of Nd:YAG/Yb:YAG ultrafast lasers. It is resilient to poor vacuum conditions and has an excellent lifetime. This makes it well suited for photoinjectors at accelerator user facilities that can tolerate its relatively low quantum efficiency. Cryogenically cooled single-crystal copper holds the current record for the lowest measured mean transverse energy.
Photoemission Properties
Please expand the following sections to view additional properties.
Photoemission Properties (Cs Activated)
| # | Reference | Save |
|---|---|---|
| 1 | Photoemission Studies of Copper and Silver: Exper… | ↓ |
Photoemission Properties (CsI Coating)
| # | Reference | Save |
|---|---|---|
| 1 | Photoemission from CsI: Experiment | ↓ |
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