6533b82afe1ef96bd128c47e
RESEARCH PRODUCT
The large-area micro-channel plate entrance detector of the heavy-ion magnetic spectrometer PRISMA
Giovanna MontagnoliA. M. StefaniniM. TrottaS. BeghiniM. BettiniFernando ScarlassaraV. SchiavonL. CorradiB. R. BeheraE. FiorettoA. GadeaA. LatinaS. Szilner DL. DonM. RigatoN. A. KondratievA. Y. U. ChizhovG. KniajevaE. M. KozulinI. V. PokrovskiyV. M. VoskressenskyD. Ackermannsubject
PhysicsNuclear and High Energy PhysicsSpectrometerbusiness.industryDetectordetectors for heavy ions ; micro-channel plates ; magnetic spectrometers ; low-energy heavy-ion reactionsParticle detectorSecondary electronsCharged particleMagnetic fieldNuclear physicsOpticsElectric fieldMicrochannel plate detectorbusinessInstrumentationdescription
This paper describes the entrance detector of the magnetic spectrometer PRISMA recently installed at Legnaro. The detector is based on rectangular (80 x 100 mm(2)) Micro-Channel Plates (MCP). It provides a fast time signal and its position-sensitive anode allows to extract the X and Y information. It exploits an electrostatic field for the acceleration of secondary electrons from a thin Carbon foil (similar or equal to 20 mu g/cm(2)) onto the MCP assembly. The electrons are guided by a parallel magnetic field. Good performances were obtained in the laboratory tests. The detector is presently installed at the entrance of PRISMA and gives resolutions <= 400 ps in time, and 1 mm in both X and Y-axes, with efficiency similar or equal to 100%, in typical experiments with heavy-ion beams.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-08-01 |