Ppt on resistance temperature detector problem

Temperature Sensors.

.00385 over the range from 0oC to 100oC, but varies by about 2% over this range. Resistance Temperature Detectors (RTDs) Advantages - Good sensitivity - Uses standard copper wire - Copper RTD’s minimize thermocouple effect Disadvantages - Bulky in size and fragile - Slow thermal response time due to bulk - Self heating problems - More susceptible to electrical noise - More expensive to test and diagnose Thermisters Basic of Thermisters/


Interchangeability based Design of Resistance Temperature Detectors

based Design of Resistance Temperature Detectors P M V Subbarao Professor Mechanical Engineering Department Connection and Use of Active Temperature Detectors…… Potential Sources of Error with RTDs Resistance thermometer systems are /ohms at 0°C. RESISTANCE THERMOMETER PRACTICE The Problem of terminating the Resistance Thermometer. Fundamentally, every sensing resistor is a two wire device. In the sensing resistor, the electrical resistance varies with temperature. Temperature is measured indirectly by/


Vertexing & Tracking Detectors LOCAL MECHANICAL SUPPORTS AND COOLING SYSTEMS IFD2014 INFN Workshop on Future Detectors for HL-LHC March 11-13, 2014 Fondazione.

or so identical copies in the space in USA15 vacated by the current C3F8 compressors. In case of unforeseen problems, the option of using fluorocarbon cooling is kept as a back-up. This will require a mixture of/ requirements related to the material budget, long-term stability, erosion resistance, chemical compatibility, minimal temperature gradients and cooling duct temperature above the dew point. The detector will be operated around room temperature 12 March 2014S. Coelli - INFN MILANO29 Stave will have a/


The Resistive Plate Chamber detectors at the Large Hadron Collider experiments Roberto Guida PH-DT-DI CERN PH Detector Seminar October 2 nd, 2009.

: 1 cm  Read-out strip: Al/Cu, ~cm The RPC detector Resistive Plate Counters  resistive parallel plate gaseous detector Developed around 1980 in Italy by R. Santonico et al. NIM 187 /detectors  The operation of a large area detector is never simple.  “Second order” problems may come from anywhere and anytime. Few example:  Gas quality is a crucial issue for all gaseous detectors (therefore also for RPC)  Environmental conditions (like temperature and relative humidity) are affecting the detector/


GLAST LAT Project CDR/CD-3 Review May 12-16, 2003 Document: LAT-PR-01967Section 11 ACD Subsystem1 GLAST Large Area Telescope: AntiCoincidence Detector.

Engineer, Nick Virmani ACD- 13 Open Describe problem reporting and corrective action system. Documentation of /currently in testing Performance meets requirements over expected temperature range GLAST LAT Project CDR/CD-3 Review/PR-01967Section 11 ACD Subsystem81 ACD Fabrication Plan Tile Detector Assemblies –FermiLab Scintillating fiber ribbons –Manufactured by Washington/ Assembly Plans Resistive network PCBs Populate Resistive Network QA RN test QA Assemble Resistive Network Resistive Network Assembly /


Optical Detectors Abdul Rehman. Optical Detector Optical detector is an essential component of an optical receiver which converts received optical signal.

wavelength dependent The variation of gain (multiplication factor) with temperature, thus the temperature compensation is necessary to stabilize the operation of the device /Such APD has extremely slow response time and relatively small bandwidth This problem can be solved using SAGM (separate absorption, grading, and multiplication /resistance when reverse biased. This resistance is reduced when light of an appropriate frequency shines on the junction. Hence, a reverse biased diode can be used as a detector/


10th Trento Workshop on Radiation Detectors HVCMOS Sensors for LHC Upgrade Felix Michael Ehrler, Robert Eber Daniel Münstermann, Branislav Ristic, Mathieu.

is not large and in most cases will not cause a problem (analog circuits). The measurement has been done after annealing – leakage current was/ about 1nA at -30C – exponential dependence (Temperature of the chip not precisely known) 14 10th Trento Workshop on Radiation Detectors Nonionizing irradiation effects in sensor Before irradiation the/ and H18 technologies that will bring us the possibility to test different substrate resistances and improve SNR For the strip project we are using H35 technology For /


LHCb Week, CERN, may ‘00M. Ferro-Luzzi LHCb Vertex Detector System: An Update Review of TP design mechanics, wake field suppression, vacuum system, cooling.

frequency domain (“E3”) Short range effects  time domain (“T3”) 1) complete VD with/without strip shielding (600000 mesh points, problems with disk space and CPU time) 2) reduced VD model (no strip shielding) a) position open/closed b) no strips, /resistance R herab = R lhcb  10  m/5  m  7mm/12.7mm  R lhcb  1.1  heat load P lhcb = P herab  10 2  2 / 1.1  180 (goes mostly to Si modules!) and HERA-B observed already a strip temperature increase. have to come closer to the beams than the detector/


CMS Tracker: Detector Control Units & Tracker Monitoring My Summer Student project (A contribution to:) Fatima Kajout 11 th of August 2003Student Session.

the value of the resistance changes for an equal temperature step. Note that we will operate the CMS Tracker at –20° C => nice!!! Student Session 2003 Software and Objectives (1) Software and Objectives (1) Database design: a proper definition of the tables and their relationships is mandatory in a project of this size. Therefore, I have studied the problem and derived tables in/


Cryogenic Thick-GEM (THGEM) detectors and their applications Cryogenic Thick-GEM (THGEM) detectors and their applications Affordable instrumentation for.

: e.g. of WIMP-induced ionization electrons in LAr for dark-matter search Problem: Low gain <100 in pure Ar, due to photon feedback! Remark: easier/Resistive wires underneath, to form bubbles in controlled way In cascaded-LHM, bubbles formed in each element. S1 photoelectrons & S2 electrons trapped by the holes. They induce electroluminescence in the gas- bubbles. A. Breskin IWAD Kolkata; October 28 2014 39 Summary THGEM detectors THGEM detectors: Robust multipliers; numerous applications at Room Temperature/


TEMPERATURE FRKL/MAY 2000Fisher-Rosemount Korea 1 RTD SENSOR.

C after a sensor experience 10 cycles over its full operating temperature range. TEMPERATURE FRKL/MAY 2000Fisher-Rosemount Korea 17 RTD Sensors How does a RTD works? – Resistance Temperature Detector – The resistance changes of the platinum wiring can be approximated by an /the ice-point resistance increase, it is a sign that the probe is being stressed (vibration or shocked) or that the probe is used beyond its rated temperature. A decrease in ice point resistance usually signals a problem with the moisture/


Low material budget microfabricated cooling devices for particle detectors P. PETAGNA and A. MAPELLI On behalf of: CERN PH/DT The NA62 Collaboration EPFL.

, the presence of a low temperature fluid and possibly of a high radiation level is unique to the HEP detector case. dedicated R&D is nevertheless unavoidable for the specific application under study. Approach to the problem 30 Sep 201014P. Petagna & /Thermograph at injection IN OUT Thermograph after few seconds of coolant circulation Heat load simulated by a Kapton heater of suited resistance and geometrical dimension First tests on a full-scale prototype 30 Sep 201024P. Petagna & A. Mapelli Steady state  /


PART 2-SELECTED DETECTORS

POLYMER COATING ON ELECTRODES INCREASES THE WORK FUNCTION CAN THIS BE UNDERSTOOD AND EXPLOITED FOR OTHER DETECTORS? RESISTIVE PLATE CHAMBERS RESISTIVE PLATE COUNTERS (RPC) R. Santonico and R. Cardarelli, Nucl. Instr. and Meth. /)16 RESISTIVE PLATE CHAMBERS RPCs: OPEN PROBLEMS QUALITY CONTROL (LINSEED COATING) CHANGE OF RESISTIVITY WITH TIME (WATER DRYING?) TEMPERATURE DEPENDENCE OF RESISTIVITY RADIATION DAMAGE OF BAKELITE RADIATION-INDUCED GAS POLYMERIZATION GENERAL QUESTION: HOW TO MONITOR RESISTIVITY AND/


SUBELEMENT T7 [4 Exam Questions - 4 Groups] Station equipment, common transmitter and receiver problems, antenna measurements and troubleshooting, basic.

problems with digital communications interfaces T7C – Antenna measurements and troubleshooting; measuring SWR, dummy loads, feed line failure modes T7D – Basic repair and testing; soldering, use of a voltmeter, ammeter, and ohmmeter T7A01 What is the function of a product detector/ D.It cannot be used at below freezing temperatures T7D01 Which instrument would you use to measure electric/ a circuit, initially indicates a low resistance and then shows increasing resistance with time? A.The ohmmeter is /


Semiconductor Detectors for Particle Physics

this are Blocked Impurity Band detectors. 18/11/2004 T. Bowcock Photodiodes High impedance through the depletion region High impedance at elevated temperatures, compared with photoconductors Little/ Although it is advantageous to have wide strips, as this minimizes the resistance of the aluminium strips and increases the capacitance to the implant, wide //11/2004 T. Bowcock Via Via failures can destroy a double metal detector Extra cost and problems Vias 18/11/2004 T. Bowcock Electronic Readout 18/11/2004 T./


Chapter Two – Optical Power Measurement

Detectors For highest accuracy Reference plane on large thermal mass – to maintain constant temperature during the relatively long measurement times Blocking of background radiation and stray light – using a jacket with thermal isolation Optimization of heat flow – a negligible thermal resistance/ of electrical powers between the two steps Power Meters with Thermal Detectors Principal problems Low sensitivity The correspondent long measurement time Possible improvement Replacing pyroelectric sensors/


SUBELEMENT T7 Station equipment: common transmitter and receiver problems; antenna measurements; troubleshooting; basic repair and testing [4 Exam Questions.

of a desired frequency? A. Reactance modulator B. Product detector C. Low-pass filter D. Oscillator 12Station Equipment T7A05 - /following may be useful in correcting a radio frequency interference problem? A. Snap-on ferrite chokes B. Low-pass / absorption D. It cannot be used at below freezing temperatures 76Station Equipment T7C12 - Which of the following is a/across an unpowered circuit, initially indicates a low resistance and then shows increasing resistance with time? A. The ohmmeter is defective /


教育部顧問室光通訊系統教育改進計畫 崑山 林明權 編撰 Chapter 4 Photo-detectors and Optical Receiver 4-1 Introduction 4-2 Optical Sensible Semiconductor Material 4-3 Photodiode.

pair. High doped (P + ) incident layer can lessen the contact resistance and benefit electrode contact. The separation of E-field can decrease the required/Detector The higher bias of APD detector means that high power consumption, short lift time and noisy, larger size, hard to couple with fiber Avalanche multiplication is high temperature-sensitive, and need expensive temperature/amplifier gain, which results in high bandwidth. The main problem is the stability of feedback circuit. 教育部顧問室光通訊系統教育改進計畫 崑山 林明權 /


SMART Study of radiation damage induced by 24GeV/c and 26MeV protons on heavily irradiated MCz and FZ silicon detectors V. Radicci Dipartimento Interateneo.

set of damage parameters for |ΔN eff | vs. annealing time  Full annealing cycles at elevated temperatures (at least 2 temperatures)  Charge collection efficiency at very high fluences (CCE is limited by carrier trapping)  New radiation/ Minisensors (Leakage Current)- Good performances of the n-type detectors in terms of breakdown voltages and current uniformity Problems for the p-type detectors:  Disuniformity of the wafer resistivity, explained with a different oxygen concentration leading to a spread /


Hartmut F.-W. Sadrozinski, US ATLAS Upgrade Meeting Nov 10, 20051 Tracking Detector Material Issues for the sLHC Hartmut F.-W. Sadrozinski SCIPP, UC Santa.

Thesis, 1999 Hartmut F.-W. Sadrozinski, US ATLAS Upgrade Meeting Nov 10, 20058 V dep and N eff depend on storage time and temperature T = 300K ShallowDonor Removal Beneficial Annealing Reverse Annealing G.Lindstroem et al, NIMA 426 (1999) Short term: “Beneficial annealing” Long term/ 15 cm -2 (Mid and Outer layers of a SLHC detector) the change of the depletion voltage and the large area to be covered by detectors is the major problem.  High resistivity MCz n-type and p-type Si are most promising materials./


Ultra-Fast Silicon Detector 1 The “4D” challenge A parameterization of time resolution The “Low Gain Avalanche Detectors” project Laboratory measurements.

resistance up to < 10 14 neq/cm 2 They will propose a system for the CT-PPS See: https://indico.cern.ch/event/363665/contribution/7/material/slides/0.pdf The Diamond approach - I 19 Nicolo Cartiglia, INFN, Torino - Timing Performance of Tracking Detectors Diamond detectors have small signal: two ways of fighting this problem/ signal via Ramo’s Theorem Gain Diffusion Temperature effect Non-uniformdeposition Electronics WeightField2: a program to simulate silicon detectors 27 Nicolo Cartiglia, INFN, Torino - /


Temperature Measurement with Thermistors Portland State University Department of Mechanical Engineering ME 121: Engineering Problem Solving.

can be measured with many devices  Liquid bulb thermometers  Gas bulb thermometers  bimetal indicators  RTD: resistance temperature detectors (Platinum wire)  thermocouples  thermistors  IC sensors  Optical sensors  Pyrometers  Infrared detectors/cameras  liquid crystals ME 121: Engineering Problem Solvingpage 1 IC Temperature Sensors (1) Semiconductor-based temperature sensors for thermocouple reference-junction compensation Packaged suitable for inclusion in a circuit board Variety of outputs/


Progress and prospects in thermo-mechanical activities at Valencia Carlos Lacasta, Arantza Oyanguren 7th International Workshop on DEPFET Detectors and.

temperature, inner and outer ladders at – few degrees. (Only one cooling block operating) ?? (Only cold air flow (N 2 ) Cooling blocks at room T) Arantza Oyanguren18 Outlook 7th International Workshop on DEPFET Detectors and Applications - At present welding pipes for several cooling blocks (AlSiMg and CrCo) - AlSiMg: stainless steel pipes cannot be directly welded  trying with aluminium pipes (resistent to CO 2 pressure??) - Problems/


Cryogenic Detectors for Double Beta Decay and Dark Matter Searches 1 -Past and present of thermal detectors -Their role in searches of rare events -Hybrid.

=> Langley => resistive bolometers for infrrared rays from SUN 1903 => Curie et Laborde => calorimetric measurement of radioactivity 1927 => Ellis and Wuster => heat less then expected => the neutrino 1949 => D. Andrews, R. Fowler, M. Williams =>  particle detection 1983 => T.Niinikoski =>observe pulses in resistors due to cosmic rays 1984 => S.H.Moseley et LT detectors for astrophysics and  mass => Fiorini and Niinikoski Low temperature detectors for/


Summary of what seen so far Overview of charged or neutral particle interaction in matter Overview of detectors providing precise time measurement -> scintillators.

particle … ? + + - - V Is this going to work? Can you foresee any Problems ? Intrinsic silicon will have electron density = hole density ~ 10 10 cm -3 In the/to use silicon as particle detector, we need to decrease number of free carriers How? We don’t like the thermal current ! - Reduce temperature ( need cryogenics, more /Front End electronics which shows that the critical parameters are detector capasitance, the shaping time , the resistances in the input circuit, and the amplifier noise parameters. /


Temperature - I - Temperature Scales - Step Response of first order system - RTD.

resistivity of metal depends on temperature is the basis of Resistance Temperature Detector (RTD). Platinum, nickel, and copper are the commonly used material for this sensor. Some are like resistance-type strain gages, but more sensitive to temperature than to strain. The resistance R at temperature/is always placed in series with the thermistor. [A thermistor is usually used in the voltage divider, which solves the self-destruction problem.] Bead (glass- coated) 8.8 k  3.1 k  1.3 k  300  C Disk 283  /


Temperature Sensors ECE 371 JB Prof. Bernhard. A Simple Thermal System Heat Source Temperature Controlling Device Sensor Work Load Sensor Input Output.

one is better? Advantages Thermocouple Simple, rugged High temp. operation Low Cost No resistance lead wire problems Point temp. sensing Fastest response to temperature changes RTD Most stable over time Most accurate Most repeatable temp. measurement Very resistant to contamination/corrosion of the RTD element Thermistor High sensitivity to small temperature changes Temperature measurements become more stable with use Copper or nickel extension wires can be/


CLIC Detector Main Solenoid Design & Status Report LCWS11, Granada, September 2011 Andrea Gaddi (1), Benoit Curé (1), Alain Hervé (2) (1) Physics Dept.

thickness50 mm Coil total thickness550 mm Radial temperature gradient within 0.1 K. Operating temperature of 4.5K on the innermost layer. Temperature margin at 5.8T of 1.5K / current (I)≈ 20 kA Solenoid inductance (L= 2E/I 2 )≈ 12.5 H Dump resistance (R)≈ 30 m  Discharge voltage≈  300 V wrt ground Peak discharge power (Ppeak=/connections with the service block, allowing a smooth movement of the detector during the push- pull operation. The problem of a compact on-board dump-system could be solved with/


The Resistive Plate Chamber detectors at the Large Hadron Collider experiments Roberto Guida Paolo Vitulo PH-DT-DI Univ. Pavia CERN EDIT school 2011.

= 1/  v d ~ 10 ns  recharge =  ~ 10 ms Why resistive electrodes?  The RPC detector: gap width The gap width is affecting both time performance charge distribution Narrow gap  better /detectors  The operation of a large area detector is never simple.  “Second order” problems may come from anywhere and anytime. Few example:  Gas quality is a crucial issue for all gaseous detectors (therefore also for RPC)  Environmental conditions (like temperature and relative humidity) are affecting the detector/


Paul Sellin, Centre for Nuclear and Radiation Physics New Materials for Semiconductor Radiation Detectors P.J. Sellin Centre for Nuclear and Radiation.

 map shows  e ~ 5x10 -3 cm 2 /V Pixel detector shows problems with contact delamination in lower quadrants A. Davies, P.J. Sellin et/wafers of large single-crystal areas are claimed, with excellent charge transport  High resistivity  =3x10 11  cm, and  e =1.8x10 -2 cm 2/Physics Single-crystal CVD diamond detectors Specialist applications of diamond detectors:  as tissue-equivalent rad-hard detectors, eg megavoltage therapy beams  detectors for very high temperature, high radiation environments True/


M. Scaringella, M. Bruzzi, D. Menichelli, R. Mori, TSC studies on n- and p-type MCz silicon pad detectors irradiated with neutrons up to 10 16 n/cm 2 15°

14 -10 15 n eq /cm 2 1MeV equivalent neutron -Annealing: 1 year room temperature -Material: p-type magnetic Czochralski silicon produced by Okmetic (Finland) with 2k  cm resistivity, orientation and 280  m thickness -devices: n-on-p square diodes 0.5x0.5cm/, TSC studies on n- and p-type MCz silicon pad detectors irradiated with neutrons up to 10 16 n/cm 2 15° RD50 workshop, 16 November - 18 November 2009, Geneva Problems ancountered in TSC after priming Normally the peak height increases with increasing/


Detection of Electromagnetic Radiation IV and V: Detectors and Amplifiers Phil Mauskopf, University of Rome 21/23 January, 2004.

2 c 2  = (1 - (S S) 22 )n th (T, ) What does T, n th mean inside an amplifier that has gain? Gain ~ Negative resistance (or negative temperature) n amp (T, ) = -1/ /(exp(-  /kT)-1)  -1 as T  0 Noise: Gain 0 0 0 G 0 0 G 0 0 0/ variation in mean free path of Cooper pair Gives a noise term proportional to dR/dT Problems: Sensitivity - Requires very low temperature Fundamentally - a bolometer is a square-law detector Therefore, it is a linear device with respect to photon flux Response (dR) is proportional/


July 4 th 20061Moritz Kuhn (TS/CV/DC/CFD) CERN July 4 th 2006 Moritz Kuhn Cooling of the P326 Gigatracker silicon pixel detector (SPIBES) CFD – Cooling.

chip is operating in vacuum, it is only a conduction / radiation problem Because there is no definitive temperature difference between Sensor and Pixel ASIC, radiation can be neglected. Temperature of the outer walls of the vacuum container are not considered July //CV/DC/CFD) Temperature gradient of the Silicon Pixel detector in dependence of the thermal conductivity of the cooling plane July 4 th 20066Moritz Kuhn (TS/CV/DC/CFD) Thermal Contact Resistance To consider the thermal contact resistance R t,c two/


Peter Göttlicher, DESY, Prague 2007-09-06 1 - Introduction: Parameters from accelerator, physics, detector - Physics prototype - System aspects: electromechanical.

Prague 2007-09-06 20 DAQ: In Detector Electronics In detector are:Detector Interface per layer Link/Data-Aggregator per module/resistance of typically 10mΩ/pin Factor 2 for GND and Power line Peak current was 1.7A/layer at begin of layer Factor 1/2 because of distributed consumers Voltage drop per used pin: Its no critical: It is DC, does not vary during the bunch train. Multiple parallel pins is not a problem/with size A ASIC air gap with d air Temperature difference at air gap: without convection (small gap/


Overview and Status of the ATLAS Pixel Detector Claudia Gemme, CERN/INFN-Genova on behalf of the ATLAS Pixel Community 10th ICATPP Conference, Como, Oct.

off-detector readout electronics via optical fibres Achievements: Commission services Commission DAQ and offline with cosmic and random triggers. Pixel endcap A Service quarter panel 9 More on Optoboards Three problems affects the optoboard’s VCSELs: Temperature dependence Low optical power at low T, but optoboards coupled to cooling Forced the use of heaters to keep the optoboards at room temperature. Common-Series-Resistance Symptom/


Temperature Sensors By Grant Stucker.

treating Packaging equipment Thermocouples Advantages Disadvantages Simple, Rugged High temperature operation Low cost No resistance lead wire problems Point temperature sensing Fastest response to temperature changes Least stable, least repeatable Low sensitivity to small temperature changes Extension wire must be of the same thermocouple type Wire may pick up radiated electrical noise if not shielded Lowest accuracy Resistance Temperature Detectors (RTDs) Wire wound and thin film devices. Nearly linear/


Quality Assurance of Silicon Strip Detectors and Monitoring of Manufacturing Process Thomas Bergauer Institute f. High Energy Physics HEPHY, Vienna SiLC.

batch behave similar) Some interesting parameters are not accessible on standard detector or would require destructive tests  Remedy: Doing similar measurements on/vacuum Micropositioner used for Alignment In light-tight box with humidity and temperature control  Instruments Source Measurement Unit (SMU) Voltage Source LCR-Meter / production line Flatband Voltage Thomas Bergauer, HEPHY Vienna23 Examples of identified problems (3)  Aluminium resistivity too high for some delivered batches  Limit: <30mΩ/sq./


Problem Statement and Motivation Key Achievements and Future Goals Technical Approach G. Ali Mansoori, Bio & Chem Eng; Depts Prime Grant Support: ARO,

As A Quick Screening Tool For Determining The Suitability Of A Membrane For A Proposed New Separation Problem Problem Statement and Motivation Key Achievements and Future Goals Technical Approach Investigator: Ludwig C. Nitsche, Chemical/sensitivity, and poor performance at room temperature. Very large active surface and nanoscale dimensions make nanostructures a promising alternative to overcome current limitations in hydrogen detectors. The electrical resistance of the nanostructure increases with hydrogen/


A new generation of gaseous tracking and imaging detectors Harry van der Graaf Nikhef, Amsterdam on behalf of the GridPix/Gossip group Brookhaven BNL:

Hans Geiger operated first gaseous detector in Manchester, UK, 1908 Bad granularity: - occupancy problem - bad spatial resolution  1980: Si Detectors! nice narrow strips, small /dilution increased distance of ‘influention’ 3 µm pixel chip high-resistivity layer - Final assessment: spark-proofness Provoke discharges by introducing /issue – What is the field at the anode surface? – High field => high avalanche temperature – => more dissociation organic molecules – => more sensitive to ageing How big is the /


Silicon Drift Detectors: A Novel Technology for Medical Imaging l Applications in medical imaging l Why semiconductor detectors ? l Which semiconductor.

be superior to standard X-ray film cassette: Better resolution Lower radiation dose, shorter exposure time Need to match film detector size (18 x 24 cm 2 ) Problem: quantum efficiency of 300  m Si wafer for medical x-rays is at best 25 %. Use Silicon for/ to drift increase the resistance and slow the drift velocity. The detectors work well up to 50 o C but are also very T- dependent. T-variations of 0.1 0 C cause a 10% drift velocity variation Detectors are operated at room temperature in STAR. We monitor/


Ion Collectors and Detectors

Faraday Cups are limited in sensitivity and dynamic range Electron multipliers and similar devices (e.g. Daly Detector) can improve sensitivity and dynamic range All of these devices first use the ions to generate electrons /Such high ohm resistors have problems: Sensitive to environmental factors Typical temperature coefficient about 100ppm/oC Sensitive to humidity Resistors are usually glass or epoxy encapsulated CVC placed in evacuated, temperature controlled housing Resistance depends on voltage across /


Applications of fast mid-IR detectors as beam monitor in the sub-ns time domain Dipartimento di Astronomia e Scienza dello Spazio (Università di Firenze)

AND PELTIER-COOLED IR HgCdTe PHOTODETECTORS NO FUNDAMENTAL PROBLEMS LIMIT THE DETECTION OF MWIR AND LWIR RADIATION WITHOUT CRYOGENIC COOLING ONLY TECHNOLOGICAL PROBLEMS THAT CAN BE SOLVED AFFECT THE DETECTION J/TEMPERATURE, NO PELTIER COOLING OPTIMIZED FOR LWIR RADIATION RESPONSE TIME DIFFUSION TIME OF CHARGES VERY SHORT RC TIME VERY SHORT (R≈50 , C<1pF)  < 100 ps RESPONSE TIME  < 100 ps ADVANTAGES DISADVANTAGES NO BIAS VERY SHORT RESPONSE TIME! LOW RESISTENCE BULKY LOW QE PHOTOELECTROMAGNETIC DETECTORS/


L. Greiner 1PXL Detector Progress – July 2013 STAR HFT LBNL Leo Greiner, Eric Anderssen, Giacomo Contin, Thorsten Stezelberger, Joe Silber, Xiangming Sun,

anode is internally wired to sensor ground. 26PXL Detector Progress – July 2013 L. Greiner STAR HFT Diode temperature measurement The response is ~ 2 mV / degree C Silicon bandgap temperature sensor: Problem: The ground potential at the various locations of /~65% - 70% yield 32PXL Detector Progress – July 2013 L. Greiner STAR HFT Aluminum cable ladder First Al cables from CERN PCB shop. Needed rework to allow wire bonding. Validated through bonding, soldering and resistance (voltage drop) testing to allow/


Michael Moll (CERN/PH) on behalf of the RD50 collaboration 11 th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors.

method used by the IC industry.  Difficult to produce very high resistivity Michael Moll – 11th ICAPTT conference, Como, 5-9.Oct.2009 -/, decrease of depletion voltage with time  No need for low temperature during maintenance of SLHC detectors! [E.Fretwurst et al.,RESMDD - October 2004] not inverted /Detectors for sLHC  At fluences up to 10 15 cm -2 (outer layers of SLHC detector): The change of the depletion voltage and the large area to be covered by detectors are major problems.  MCZ silicon detectors/


The HADES timing RPC Inner TOF Wall P.Fonte for the HADES RPC group DIRAC phase1 9th International Workshop on Resistive Plate Chambers and Related Detectors.

Minimum 150 channels/sector  effective cluster size  resolution100 ps (  ) or better  In principle not difficult for a good detector  Potential problems: mechanics, crosstalk (hard to measure).  rate capability up to 1 kHz/cm 2 in some areas  Not so easy /Cabanelas RPC2007P.Fonte The HADES tRPC inner TOF Wall Rate capability Temperature 33º C Volume resistivity 3  10 12  cm ProblemSolution: warm glass Glass has an exponential resistivity temperature coeficient of a factor 10 per 25ºC. [C.Gustavino /


XI Workshop on Resistive Plate Chambers and Related Detectors, INFN, 5-10 February, 2012 1 Aging test of high rate MRPC Wang Yi Department of Engineering.

: ~10 -2 Gy/h Irradiation Time: ~60h Several Aging Problems is observed. Wu Yuelei, et al., Aging Effect of Multi-Gap Resistive Plate Chambers, USTC, May 2005 Efficiency → Time Resolution ↗↗ Noise Rate ↗↗ Dark Current ↗↗ 8 XI Workshop on Resistive Plate Chambers and Related Detectors, INFN, 5-10 February, 2012 9 N471A Box with constant temperature I MON HV ground Agilent Digital Multimeter Computer The current/


Thermal Kinetic Inductance Detectors for x-rays Orlando Quaranta Thomas Cecil Lisa Gades Antonino Miceli Advanced Photon Source.

time of 1-2 days Fermilab - MKID and Cosmology Workshop - August 26, 2013 Introduction to MKIDs So what’s the problem for X-ray’s  Energy resolution of ~60 eV @ 6 keV for Al resonator with Ta Absorber  Limitations /.Al wet etch (CNM) 16.Resist strip (1165 remover, CNM) 17 Turn-around time 1-2 weeks Fermilab - MKID and Cosmology Workshop - August 26, 2013 Thermal Kinetic Inductance Detector Pulses X Static temperature, frequency sweep Static frequency, temperature sweep Resonance frequency Thermal Pulse 18 /


GAS CHROMATOGRAPHY.

of columns to clog. Short lifetimes of poorly prepared columns. Fragileness of columns. Mechanical problems in sample introduction and connection to the detector. Capillary column: Capillary columns have an internal diameter of a few tenths of a /, creating pressure/flow programs similar to temperature programs. Detectors for GC Electron capture (ECD) Thermal conductivity (TCD) radioactive good for X-, NO2- and conjugated Thermal conductivity (TCD) change in resistance of heated wire Flame ionization (FID)/


Dimensioning of CO 2 cooling pipes in detector structures Pipe dimensioning & Flow distribution Detector Mechanics Forum Oxford, 20 June 2013 Bart Verlaat.

tube and outlet tube is part of the thermal resistance chain from heat source to sink! 7 Outlet manifold: Pressure = fixed Inlet manifold: Temperature = fixed Temperature exchange Outlet line dP Detector dP Inlet capillary dP Inlet manifold outlet manifold Long branch/manifold liquid To keep this problem simple: Have the manifold right after the heat exchanging transfer line. Remaining cooling power for ambient IBL: A detector with very long in and outlet lines The IBL detector is only 800mm long, /


Tracking Challenges at Future Hadron Colliders Micro-Pattern Gas and Silicon Detectors for Tracking Jose E. Garcia Université de Genève 1.Tracking systems.

-Pattern Gas and Silicon Detectors for Tracking Innermost layer(s)  High radiation level needs  thinner layers - reduce depletion voltage  Decrease cooling temperature and/or use diamond//0 Gas GOSSIP (micromegas) low mass and could get to good radiation resistance. See H. Van der Graaf talk Large scale production? Timescale? Cost /will have to be built. - A large list of problems will have to be addressed: - Radiation hard detectors - Reduce the occupancy by increasing channel number - Introduce tracking/


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