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Advanced Diamond Detectors: Features, Types, and Applications

Explore the diverse types and applications of diamond detectors, such as pCVD and sCVD, their unique benefits including fast response time, radiation tolerance, and high dynamic range, along with measurement results from leading manufacturers like Cividec and BCM1F.

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Advanced Diamond Detectors: Features, Types, and Applications

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  1. Diamond Detectors Ewald Effinger BI-BI-BL

  2. Diamond Detector Types pCVD sCVD pCVD = polycrystalline Chemical Vapor Deposition (10x10 mm2 x 0.5 mm) sCVD = single-crystal Chemical Vapor Deposition (5x5 mm2 x 0.5 mm)

  3. Why Diamond Detectors • Measurement of fast beam losses • ns second response time • Bunch by bunch structure • Radiation tolerant detector type • Low maintenance • Constant operating conditions • Small dimensions • easier positioning in areas with space limitation • Well known response signal • Detector tested under many conditions for verification of the performance • High dynamic range ~ 8 order of magnitude • Linear response to particle flux

  4. BLMD (type Cividec) • Detector AC/DC Splitter 2 GHz Amplifier • pCVD detector: with high voltage and signal connection • AC-DC-Splitter: to separate AC signal current from DC leakage current • 2 GHz / 20 dB Broadband Amplifier ( various amplifier available ) • Housing: internal HF copper housing + aluminum housing for mechanical protection

  5. Principle of Civitec detector Ch1 Scope Ch2 Diamond Detector • Detector on Support plate • High and Low Voltage Supply • Controlled via ET-7026 Ethernet Controller • 1 GHz Waverunner from LeCroy • Readout via FESA Application from S.B. Pedersen ~ 100m CK50 6 dB Power splitter

  6. BLMD (BCM1F CMS / DESY Zeuten) • sCVD detector: mounted on the analogue optical link • analogue optical link mounted on support PCB including radiation tolerant voltage regulator and test pulse generator • Housing with Burndy-8 with high and low voltage supply • E-2000 connector for optical signal

  7. Principle of BCM1F • Detector description • sCVD detector with a bias voltage 125 V • Fast amplifier (rad tolerant) • Analogue optical link LLD form the MIC • Optical single mode fiber of around 2km • Analogue Receiver (865-RA-04) • ADC CEAN 1721 • Discriminator • TDC CEAN • RTH • Local PC for data treatment

  8. Measurement results Cividec Measurement from September 2011 (BMLED.04R8.B2E10_TCTVB.4R8.B2)

  9. Measurement results Cividec Measurement from December 2012 (BLMED.06L7.B1E10_ TCHSS.6L7.B1) Courtesy of Erich Griesmayer (Cividec)

  10. Measurement results BCM1F Arrival Time Histogram from Losses downstream at Collimator in Point 8 Losses from beam and interaction 50 ns bunch spacing Losses from beam

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