Accelerator Science at Daresbury -

the early years

A close-up and personal view

by

Vic Suller

(Louisiana State University/CAMD)

In the beginning - there was NINA

• Synchrotron 5 Gev• Circumference 220 m• FoDO lattice• Straights 1m & 3.5m• Combined function• Tune values 5.25, 5.25• Rep rate 50 Hz• Beam power 1 kW

Accelerator Physicists at Daresbury 1966

Applied Physics Division

Michael Crowley Milling

Godfrey Saxon

Neil Marks

Ian Rabinowitz

Vince Hatton

Robin Tait

Machine Division

Tony Egginton

Jerry Thompson

Tom Aitken

Mike Poole (Sept 1966)

Vic Suller (Oct 1966)

Alan Jackson (Oct 1968)

Machine Division responsibilities - external

beams

1968 Tom Aitken & Vic Suller – In the NINA control room

They are setting up the Spill Servo – to extend the duration of the beam “spill”

1968 First Synchrotron Light experiment -

Ian Munro + Scott Hamilton (Manchester University)

Scott Hamilton and Tom Aitken inside the NINA tunnel alongside the SR beam line

1968 First Synchrotron Light experiment -

Notice the pile of lead bricks enclosing the experiment - very inconvenient!

1972 Two Beams into the Dedicated

Synchrotron Light Facility

Mike and John West in the SRF

Mike and Alan Jackson -shared an office for 15 years

Alan's big NINA project was the diamond target.

Mike's desk looks remarkably tidy - the paper mountain was yet to come!

1968 Design Study for the NINA Booster

To provide a future for the lab, a 20 GeV synchrotron was proposed, tunneling under the Daresbury hillside.

The design study was made by the Applied Physics division.

In 1969 the Government announced that in future all UK high energy physics would be done at CERN.

But the NSF van de Graff was approved.

The Machine division became responsible for all NINA accelerator physics.

Controlling the NINA tune - programmed quadrupoles

Mike & Neil Marks at the NINA

control desk

Richard Walker can also be seen assisting – which puts this photo at 1977.

SRS replaced NINA

The SRS was approved in 1975, although NINA kept running until 1977

1975 Computer Controlled Magnet Measurements

Mike & Richard Walker develop a computer controlled Magnet Measurement system to automatically take and record precision field maps of the SRS magnets.

Computer Controlled Magnet Measuring Facility

Celebrating the last SRS magnet to be measured circa 1979.

The SRS after HBL conversion

1980 Mike at the original SRS control desk

2004 Mike at the later SRS control desk

1985 Mike and the Undulator

1985 The SRS Undulator

Undulator Spectrum in the Visible

For diagnostic purposes the undulator spectrum was shifted from the normal VUV into the visible.

This was done by ramping the SRS energy down from injection (600 MeV) to 450 MeV.

1987-92 HELIOS Compact Source

• Ring energy 0.6 Gev

• Bending field 3.5 T

• Bend radius 0.57 m

• Beam current 300 mA

HELIOS linac - now in Louisiana

The HELIOS linac has been acquired by CAMD and will be installed with the existing linac to raise the injection energy from 200 to 300 MeV.

Mike - the Sportsman

Mike's Sports:-

CricketSoccer (Everton)Table TennisGolfBowls (?)

With George Wright and the Bowling Trophy

This was taken in the DL “huts” in the early ‘70s.

Mike – Table Tennis action

Mike in the Daresbury Lab Cricket Team

1970 AEA knock out winners

Mike - my close colleague for 37 years

MikeCongratulations for your

many contributions to accelerator science in the UK

Best Wishes for a long and active Retirement