Author/Authors :
Adam، نويسنده , , W and Bauer، نويسنده , , C and Berdermann، نويسنده , , E and Bergonzo، نويسنده , , P and Bogani، نويسنده , , F and Borchi، نويسنده , , E and Brambilla، نويسنده , , A and Bruzzi، نويسنده , , M and Colledani، نويسنده , , C and Conway، نويسنده , , J and Dabrowski، نويسنده , , W and Delpierre، نويسنده , , P and Deneuville، نويسنده , , A and Dulinski، نويسنده , , W and van Eijk، نويسنده , , B and Fallou، نويسنده , , A and Fizzotti، نويسنده ,
Abstract :
Diamond radiation sensors produced by chemical vapour deposition are studied for the application as tracking detectors in high luminosity experiments. Sensors with a charge collection distance up to 250 μm have been manufactured. Their radiation hardness has been studied with pions, proton and neutrons up to fluences of 1.9×1015 π cm−2, 5×1015 p cm−2 and 1.35×1015 n cm−2, respectively. Diamond micro-strip detectors with 50 μm pitch have been exposed in a high-energy test beam in order to investigate their charge collection properties. The measured spatial resolution using a centre-of-gravity position finding algorithm corresponds to the digital resolution for this strip pitch. First results from a strip tracker with a 2×4 cm2 surface area are reported as well as the performance of a diamond tracker read out by radiation-hard electronics with 25 ns shaping time. Diamond pixel sensors have been prepared to match the geometries of the recently available read-out chip prototypes for ATLAS and CMS. Beam test results are shown from a diamond detector bump-bonded to an ATLAS prototype read-out. They demonstrate a 98% bump-bonding efficiency and a digital resolution in both dimensions.
