ALICE (accelerator)
Main parameters

ALICE (accelerator)

Section Title: Main parameters
Table Section Text: None

Nominal parameters	Currently achieved

Gun DC voltage	350 kV	350 kV with nominal HV ceramic; currently gun operates at 230 kV

Nominal bunch charge	80 pC	80 pC (>~200pC can be also delivered)

Cathode	NEA GaAs	NEA GaAs

Laser Nd:YVO4(2nd harmonic)	532 nm	532 nm

Laser spot	4.1 mm FWHM	Variable

Laser pulse length	28 ps FWHM	28ps with laser pulse stacker

Quantum efficiency	1-3%	~4% (~15% in the lab conditions)

Injector energy	8.35 MeV	Currently 7.0MeV

Total beam energy	35 MeV	Currently 30 MeV

RF frequency	1.3 GHz	1.3 GHz

Bunch repetition frequency	81.25 MHz	81.25 MHz

Train length	0-100 ms	Up to 100 µs at 40 pC

Train repetition frequency	1–20 Hz	1–20 Hz

Compressed bunch length	<1ps @80pC	To be measured

Peak current in compressed bunch	150A	To be measured

Maximum average current	13 mA

MAX current within the train	6.5 mA	> 6.5mA but at shorter train lengths

Sentence(s)

ALICE (accelerator) bunch has a repetition frequency of 81.25 MHz.

final_sentence: ALICE (accelerator) bunch has a repetition frequency of 81.25 MHz.