The MAX I accelerator

MAX I is a 550 MeV electron storage ring in operation since the mid eighties. It is injected from a Racetrack microtron operating at energies up to 100 MeV. MAX I has several operating modes: multibunch, single bunch and pulse strecher for nuclear physics.

MAX I is equipped with two undulators.

Here is an overview (13kB) of the Racetrack microtron and the MAX I storage ring.

Parameters:

Racetrack microtron:

The racetrack microtron was removed from operations in December 2002 and replaced by a new linear accelerator (see MAX III)

Maximum energy	100 MeV (5 MeV steps)
Pulse current	20 mA RF 3 GHz
Pulse length	1 micro sec
Energy spread	0.1 MeV
Emittance	0.1 mm mrad

Storage ring:

Storage mode:

Maximum energy

550 MeV

Current

300 mA (up to)

Horizontal emittance

4E-8 m rad

RF

500 MHz

Bunch length (FWHM)

80 ps

Pulse strecher mode:

Energy

75 - 100 MeV

Duty factor

50 - 80 %

Operating current

50 nA