Proton and neutronradiation facilities in the

PS East hall at CERN

http://www.cern.ch/irradiation

Maurice Glaser, Michael Moll, Federico Ravotti CERN Division PH-TA1-SD

PH-TA1-SD meeting 27-2-2004

Irradiation, Storage, Expedition…..in 2003

• 1992 Hours of proton irradiation (83 Days) (85 ‘04)• 2424 Hours of neutron irradiation (101 Days) (60 ‘04)• 579 Samples irradiated and traced • 377 Dosimetry with Ge spectrometer • 202 Dosimetry with NaI spectrometer• 65 Users from 30 institutes• 55 Expeditions all over the world (T @-5oC) • 30 Dosimetry with Si detector• 5 Different places for storage (Low T < -20ºC)

PH-TA1-SD meeting 27-2-2004

Samples irradiated

PH-TA1-SD meeting 27-2-2004

Dosimetry and beam profilingDosimetry and beam profilingGafchromic dosimetric Films:

We characterized different types for dose measurement and beam profiling.

MD-55MD-55HD-810HD-810XR - TypeXR - Type

HIGH SENSITIVITY MEASUREMENTSHIGH SENSITIVITY MEASUREMENTS

XR Film exposure of the beam after a few

bunches of 42 ns.

6cm

VERY USEFUL FOR SPECIAL IRRADIATIONSVERY USEFUL FOR SPECIAL IRRADIATIONS

PH-TA1-SD meeting 27-2-2004

Dosimetry and beam profilingDosimetry and beam profilingCartography/Dosimetry with Optically Stimulated Luminescence (OSL) materials:

0

20

40

9080706050403020100

0102030405060708090100

FAST EXTRACTION TESTFAST EXTRACTION TEST

mmmmmmmm

5x5 cm2 beam

9x5 cm2 beam

Neutron reactor Vs Irrad2

PH-TA1-SD meeting 27-2-2004

Other activities

2003• Complicated irradiation and dosimetry:

CMS ECAL crystals and fast extraction tests for CMS Beam Condition Monitor• Summer Student (K.Visser) - NaI spectrometer software• New storage facilities for radioactive material

2003/2004• New control hardware for the two shuttle systems• Online database for certificates of outside institutes to handle radioactive material• Development of a radiation monitoring system for CMS and other LHC

experiments (several publications submitted)• Laser systems for semiconductor detector testing 2004• New neutron irradiation zone (PSAIF)• Scenario for taking over the T8 beam line in the PS East Hall (DIRAC

experiment) in 2006

PH-TA1-SD meeting 27-2-2004

CERN-PS East Hall

CERN PS-AD PSAIF ->130 Gy/h (Si) + 1E12 n cm-2 h-1

3E11 n cm-2 h-1

3-5E13 p cm-2 h-1