A multi-charge-state injector for a high-intensity heavy-ion linac is being developed at ANL. The injector consists of an all-permanent magnet ECR ion source [1], a 100 kV platform and a Low Energy Beam Transport (LEBT). The latter comprises two 60-degree bending magnets, electrostatic triplets and beam diagnostics stations. At present the injector system allows us to accelerate all ion species up to qtimes100 keV total kinetic energy, where q is the charge state of an ion. In the current installation, the accelerating tube is followed by a 90deg magnet and a beam measurement station [2]. Recently we studied the production of metal ion beams using an oven technique and high intensity light ion beams from the ECR ion. A pepper pot emittance meter based on a scintillator screen has been developed and tested with various CW ion beams. It was found that a Csl (Tl) crystal has a high sensitivity for a variety of ion species from protons to heavy ions with the current densities even below 1 muA/cm2.
[1]
A. Kponou,et al.
Pepper Pot Emittance Meter
,
2006
.
[2]
M. Sengupta,et al.
TWO-CHARGE-STATE INJECTOR FOR A HIGH POWER HEAVY-ION LINAC *
,
2006
.
[3]
R. Jung,et al.
SINGLE PASS OPTICAL PROFILE MONITORING
,
2003
.
[4]
B. Sharkov,et al.
Generation of intense beams of Pb+4 to Pb+10 ions in a laser ion source
,
2002
.
[5]
D. Xie.
The BIE100 ECR ion source
,
2002
.
[6]
P. Ostroumov,et al.
Simultaneous acceleration of multiply charged ions through a superconducting linac.
,
2001,
Physical review letters.