Reports
The following documents are
the primary specifications and documentations that was published on the
ISCOOL project.
ISCOOL RFQ cooler installation and commissioning in the ISOLDE hall (building 170).
Beam line modification request at ISOLDE. (pdf),
last modified: 11.09.2006.
Abstract: The ISOLDE RFQ cooler (ISCOOL) will be installed after the HRS separator
before the merging switchyard. The cooler will initially be used by COLLAPS and REX-ISOLDE.
The cooler should be possible to remove if the efficiency limitation on-line proves to be a
problem for other experiments. It should be possible to remove the cooler within a technical
stop at HRS of one week. The typical run with the cooler would encompass a single physics
run per year at HRS of 3-4 months.
"RFQ Cooler and buncher" (pdf), published (internal),
dated: 07.02.2003.
Prepared by: Ivan Podadera.
Abstract:
Developing a new RFQ cooler and buncher for ISOLDE. Such
a device combines an energy loss in buffer gas atom-ion collisions with
confinement provided by RF-field in transverse plane. Optional confinement in longitudinal
direction is provided by static potential dwell. Then, an improvement of the beam line
is achieved for all the experiments at ISOLDE. The RFQ operates inside a high
voltage cage of 60 kV, and with a system of turbo-molecular pumps both to keep the high
vacuum before/after the RFQ and to keep a low pressure (around 0,1 mbar) inside the
RFQ. The project is to be thought not only as a mechanical
design and construction project, unless as a project of research and development, since
it is about improving (operationally and technically) the existing RFQ cooler
and buncher placed around the world. Due to ion optical reasons whole beam line section has
to be redesigned and constructed as a part of this project.
Vacuum system
This document was the first document about the vacuum for the ISCOOL system. Since then changes has been made and I refeer to the updated drawing in the meantime.
"Calculations of the vacuum system for the new RFQ cooler and buncher at ISOLDE" (pdf) dated: 31.03.2003, by Ivan Podadera.
Abstract:
This document contains the calculations for a first attempt to design the suitable
vacuum system for the RFQ cooler and buncher due to install at ISOLDE facility at CERN.
This system is chosen to take the pressure from the medium vacuum (0,1 mbar) inside the
RFQ cooler cavity up to the high vacuum (10−7 mbar) for the beam line using three
turbo-molecular pumps.
Drawing for the vacuum system layout, dated: October 2007.
The three turbo pumps are as follows: For the previdage (FR in the drawing) there is an Alcatel 15 m3/h PPM 2015
The to smaller primary turbo pumps (TP2 and 3) for the RFQ are 15m3/h hermétique PPM2015H
The large primary turbo pump (TP1) is a 30m3/h hermétique PPM 2033H.
-Thanks to S. Meunier
Alignments
The alignment has been conducted by J. Sarret and the edms report can be found here.
"RFQ Cooler and Buncher -ISOLDE- Survey of online faraday cups" dated: September 2007 , by J. Sarret.
"RFQ Cooler and Buncher -ISOLDE- Fiduciallisation of RFQCB's elements" dated: October 2007 , by J. Sarret.
Power
The cabeling of the triplets Q1 and Q2 is structured as in this document.
"Correspondance des alimentations et des cables des triplets RFQC" dated: October 2007 , by J. Parra-Lopez.
|
