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Wolfson Brain Imaging Centre

Department of Clinical Neurosciences

Studying at Cambridge

Radio Chemistry

 

For positron emission tomography studies at the WBIC and other nearby PET centres, a range of PET radiopharmaceuticals labelled with short-lived radionuclides, such as oxygen-15 (t1/2 = 2 min), nitrogen-13 (t1/2 =10 min), carbon-11 (t1/2 = 20 min) and fluorine-18 (t1/2 = 110 min) are produced at the WBIC Radiopharmaceutical Chemistry laboratories.

Radiotracers
Radiochemistry Laboratory
Cyclotrons
Radiochemistry Research

Radiotracers

The present range of PET tracers implemented for regular productions are outlined below.

Radiotracer Preparation Equipment

[15O]Water Hidex [15O]water system

[15O]Carbon Monoxide GE Process Cabinet

[15O]Oxygen GE Process Cabinet

[18F]FDG Coincidence (GE) Synthesizer

[18F]Fallypride GE TRACERLAB FXn module

[18F]FMISO GE TRACERlab MX module + HPLC

[18F]FLT GE TRACERlab MX module + HPLC

[11C]Flumazenil “loop” system or GE TRACERlab FX-C module

[11C]Raclopride GE TRACERlab FX-C module

[11C]PK11195 “Disposable” synthesis system or GE TRACERlab FX-C module

[11C]PIB GE TRACERlab FX-C module

[11C]MTO GE TRACERlab FX-C module

[11C]MHED GE TRACERlab FX-C module

 

The Laboratory

 

The outer ("cold") lab is approximately 40 sq m and is radiologically classified as supervised.  The laboratory is equipped with 2 fume cupboards, a shielded process cabinet, a fridge/freezer, benchwork, several HPLCs for research, a GC, a drying oven and water process equipment.  Also installed is a workstation for initiating and analysing the radioactivity emissions monitoring system.

The inner ("hot") lab accommodates the radiopharmaceutical production and preparation equipment housed in lead lined “hot cells”.  This consists of a set of stacked synthesis boxes containing two hot cells with hinged doors, one large “research” hot cell with a sliding front door, one dispensing hot cell and a bank of four mini swing-door hot cells. 

The stacked, “research” and dispensing hot cells contain acrylic doors to maintain air-tight integrity. 

Each cell is provided with monitored air extract to protect against gaseous radio-activity leaks into the room. 

 

 

lab1.jpg

 

 

lab2.jpg

 

 

Additionally, the laboratory is equipped with a work bench and a lead-shielded workstation housing calibrated radioactivity measuring equipment. 

Air quality within the room is maintained at class D by virtue of a pre and HEPA filtered air supply providing a positive differential pressure between the room and the outside environment.

The QC room is accessed from the production room. This room accommodates analytical equipment consist of three HPLC system and data acquisition computers. The room also accommodates a fridge, freezer, cyclotron control computer and storage of chemicals/consumables for GMP preparations.

The room also accommodates a class 3 isolator linked to the radiochemistry laboratory.

 

 

Lab Equipment

Two GE MeI Modules -- Automated modules for the radiosynthesis of the radiolabelling precursor [11C]iodomethane.

Coincidence FDG Synthesizer -- Computer controlled automated system for the preparation of [18F]FDG.

GE TRACERlab MXFDG -- Computer controlled automated system for the preparation of [18F]FDG, [18F]FMISO and [18F]FLT.

FDG Dispensing Unit -- An automated module for the dispensing radiopharmaceuticals into sterile vials.

GE TRACERlab FX -- Computer controlled automated system for preparation of [18F]Fallypride and other [18F]fluoride derived radiopharmaceuticals.

Nuclear Interface Synthesizer -- Computer controlled automated system for the preparation of [11C]Flumazenil, [11C]Raclopride, [11C]PK11195 and other [11C]methylation derived radiopharmaceuticals.

“Micro-reactor” module -- A in-house designed automated module for the preparation of [11C]Flumazenil.

GE Process Cabinet -- A component of the PETtrace cyclotron system for the production of [15O]Carbon monoxide and purification of [15O]oxygen.

[15O]Water system -- An automated module for the continuous or batch preparations of [15O]water.

Dionex HPLC system -- Consisting of pump (IP20) Carbopac ion exchange column and electrochemical detector (ED40) in series with a radioactivity detector. Used for radiochemical analysis of [18F]FDG.

Two Gilson HPLC Systems -- Consisting of pumps (one 307 isocratic module, one combination 305 and 307 gradient module), C18 HPLC columns and variable wavelength detectors (118) in series with radioactivity detectors Used for the radiochemical analysis of carbon-11 and fluorine-18 radiopharmaceuticals.

Perkin Elmer Autosytems XL -- Gas chromatography system consisting of a thermocouple detector installed in series with a radioactivity detector, used of the radiochemical analysis of [15O]oxygen and [15O]carbon monoxide. Flame ionisation detector used for solvent residue analysis.

Envair Containment Dispensing Safety cabinet (Isolator) -- Used for preparation of dispensing vials and all manipulations requiring Class A environment.

 

For more information on the Radiochemistry facilities, contact Rob Smith.

 

Cyclotrons

There are two radionuclide producing cyclotrons on site: the GE PETtrace, a 16MeV proton, and 8MeV deuteron accelerating machine for production of the 18-F, 11-C, 15-O and 64-Cu positron emmitting nuclides; and the IBA Cyclone 3D, a 3MeV deutron machine, designed specifically for the production of 15-O.

Click on the images below for more information, or contact Paul Burke or Ross Harper.

PETrace140a.jpg Cyclone.jpg

Engineering Projects

We also engage in radiochemistry and cyclotron related engineering projects. Click here for more information.

RSS Feed Latest news

BBC News - Brain scan study to understand workings of teenage mind

May 15, 2013

Featuring MRI imaging at the Wolfson Brain Imaging Centre - Researchers in Cambridge have begun a study to understand the teenage brain. Follow the link to the BBC News Website: http://m.bbc.co.uk/news/health-22510866

Compute/Cluster Server Consolidation.

Feb 11, 2013

Work has completed to consolidate our current compute and cluster servers at the WBIC. By utilising the latest server technology we have reduced our current compute/cluster server count from 76 Servers to just 8, but this will constitute an increase of approx 50% more CPU/Memory processing power available, as well as reducing our energy footprint by 80%.

Panorama:The Mind Reader - Unlocking My Voice

Nov 12, 2012

Featuring MRI imaging at the Wolfson Brain Imaging Centre - scheduled for broadcast on BBC ONE-Tuesday November 13th at 10:35pm Author - Vicky Lupson

Upgrade to Simultaneous PET/MR Scanner

Oct 15, 2012

Author - Dr R Hawkes

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