PMT Transimpedance Amplifier

Hallo, I am planing to use the PMT H10721 with the TIA60. My laser source has repetition rate which can vary between 100 kHz and 4.5 MHz, each laser pulse is 50 fs long. The rise time of the PMT H10721 is 0.57 ns. - Assuming the PMT provides an output current signal 2 ns long, is the bandwidth of the TIA60 sufficient to amplify the current with a conversion factor of about 30000 V/A ? - what is the expected voltage pulse duration coming out of the TIA60 ? Thanks a lot and best regards, Giuseppe Mercurio

Hi, we at Italian National Institute of Nuclear Physiscs in Perugia Italy, are trying to develop a Low Light Leak System for a RICH detector on a CERN HEP Experiment. We have to use PMT from Hamamatsu R7400U for low leak light detection in a Dark Box where are the Photon Counting PMT for the RICH detector. If there is a low light leak in the box we have to turn off the HV Bias of the detectors to protect the Photon Counting System. The signal from the PMT come form 100 meters of RG58 cable (10nF Cable) with BNC connectors, we need to read the Photocurrent and convert this current in a linear voltage. Now the low light rate is 1.3Mhz and the High light rate (photons) is 18Mhz, prom PMT pulse, we have to place the alarm threshold near 15Mhz. The counting rate is quite high and the PMT pulses will overlap each other and produce a continuous current (Photocurrent) and may be an hybrid solution between an CSA and TIA could be the best circuit. The costant time of the CF and RF should be more than 10 times the T of the maximun pulse PMT frequency 18Mhz (I mean 500ns). We need at maximun 20 sensors and conditioning circuts for the 20 dark box of the experiment then the solution with custom design for bipolar pulse shaping to photon_counting is non feasible. We want to use a TIA System to convert current in voltage coupled in DC then we send the output buffered to a comparator and set two alarm signals one is TTL and the other is LVDS signals to turn off the HV Bias of the PMT. We'd like to know if your TIA60 can fits our need for prorotype and also to Know the cost, we will have 15 PMT R7400U to monitor 15 dark box each containing 64 multianode PMT to protect. We will need also the schematic of the TIA60 to konw the tau of the TIA expecially if the long 100 meters of RG58 cable at the input can create problem to your instruments. We wait your hints and tips for our assumptions. Thank you. Kind regards. Andrea Papi. Perugia Italy INFN. 075 5852754 www.pg.infn.it

Hi, I need technical support for the overturned image or signals from TIA60 with H7422-40 PMT. I've already purchased the TIA60 and KPS101 and connected them to Olympus FV500 DAQ ports on my computer and than received the light and made the fluorescent bead images by using flouview (olympus) program while the con-focal scanning is accomplished. But I just observed the image which was consisted of black color in area of fluorescent beads. I think that it is caused by opposite signal from the TIA60. How can I figure it out? Should I use the converter (amp) for that?

Hi， I need technical support. I have one TIA60 but it doesnot work now. Do you have any simple test methods to verify its functions? Thank you! Best regards, yingshun

Hi, I would like to use the TIA60 with a Hamamatsu H10770PA-40 PMT. Is it compatible ? Thanks,

Hi, we want to also know the frequency response below 100 kHz (to 10 kHz). Can you please provide this too? Thank you!

Dear THORLABS. Hi, we are using the TIA60 with PMTss, also we are using the KPS101 as a power supplier for TIA60. Now, we adjusted a initial signal position at the 0.01V using by a Trim Pot Adjuster, then the output voltage was going down from 0.01V to 0.005V, when light source was detected. We would like to ask about the output signal we got. Could we use the TIA60 right way? and Could we get the manual about TIA60?

Hi, we are attempting to use the TIA60 together with a Hamamatsu H10770PA-40 PMT, is this trans-impedence amplifier compatible the PMT as we are struggling to get it working? Many thanks, Joseph

We are using the TIA60 together with the Thorlabs PMTSS PMT. (We are connecting the PMT to the amplifier with the supplied BNC to SMA cable and driving them from the same 15V source.) It seems that this combination results in an excessive noise level. Already at very low PMT gain and light levels the amplifier is completely saturated and/or there is excessive number of voltage spikes in the signal. (We have tested the PMT and TIA60 separately and they function as expected). Is there a problem specific to this amplifier/PMT combination?

Dear Ladies and Gentlemen, I am looking for a transimpedance amplifier with a large operating temperature range. Could you please give me further information about the thermal behaviour of the TIA60? Thank you very much With best regards Bernd Polder Inertial Sensors MEMS Technologies Sensor Business Group TDK-EPC AG & Co. KG A TDK Group Company Beeskowdamm 3- 11 14167 Berlin Telephone: +49 30 890 4055 5345 Fax: +49 3329 6068 15 mailto: bernd.polder@epcos.com www.global.tdk.com · www.epcos.com Headquarters: Berlin ∙ Commercial register of the local court (Amtsgericht): Charlottenburg ∙ HRA 28220 B General Partner: EPCOS AG Headquarters: Munich ∙ Commercial register of the local court (Amtsgericht): Munich ∙ HRB 127250 Chairman of the Supervisory Board: Dr. Werner Faber Management Board: Joachim Zichlarz, Chairman ∙ Joachim Thiele · Dr. Norbert Hess · Christian Block

I have a number of biased Si photodiodes e.g. DET100A DET10A and was wondering on the compatibility of this amplifier (TIA60) with them to boost their output when observing low power beams and scatterred light that is modulated at high frequency (close to MHz). I am aware of the PDA200C for photodiodes but I wish to sample beyond 1 MHz if possible to avoid undersampling the signals.