Proposals to be submitted to the
Program Advisory Committee
should be received on or before 9 am EST Monday, December 10, 2007.
Detailed instructions including important dates may be found on our
website. A list of
including expected intensities is also available.
Some web-based programs may also be beneficial to your planning:
We encourage you to contact us with
suggestions for the beams you require to pursue your physics research.
as to what constitutes a suitable beam for the HRIBF
may be found in our more recent newsletters.
We ask that you be aware that scheduling experiments at our facility is
not straightforward; several experiments must be available before there is
"critical mass" so that it is cost effective to schedule a particular RIB
ion source or endstation configuration.
Additional information reflecting the present status of equipment and
techniques is provided on our
equipment web pages. You are encouraged to
contact the mentor of the equipment should you have any questions.
Information from previous PACs is provided below.
- Ranging out for decay studies
- LeRIBSS - Low energy Radioactive Ion Beam Sepctroscopy Station
This beamline will soon be ready for commissioning. The line itself
is under vacuum and electrostatic power supplies are on order. We expect
initial tests to be conducted in the early part of 2008 and have it available
for experiments shortly thereafter. Beams for LeRIBSS can be positively or
negatively charged and should be at least a factor of 10 more intense
than the values for
In addition, yields for positively charged neutron-rich ions will be higher
as they do not require charge exchange. Values (measured and estimated)
for charge exchange efficiency can be found at
neutron-rich beams 2001 webpage.
We strongly encourage you to submit proposals using LeRIBSS at this PAC.
- 25,26Al beams
- Rotating target at the RMS
The new 14-mm diameter rotating target for decay studies at the RMS has been
commissioned. Suitable for intense stable beams or even extremely delicate
targets for radioactive beams (e.g. sulfur-compound targets), the small DC
motor assembly is located inside the vacuum chamber. Initial experiments
with Fe beams on Ni targets have successfully used a factor of 2.5 higher
beam current or up to 40 pnA on a nominal 300 μg/cm2 target.
These rates lead to several thousand, mass selected, heavy-ion implantations
per second with focal planes slits set to allow two charge states of one mass
to reach the focal plane.