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TechnoAP APV8M44 Instruction Manual

Hybrid digital spectrum analyzer
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Hybrid Digital Spectrum Analyzer
Instruction Manual
Add: 2976-15 Mawatari, Hitachinaka-shi, Ibaraki, Postcode: 312-0012
TEL: +81-29-350-8011
FAX: +81-29-352-9013
URL: http://www.techno-ap.com
e-mail: info@techno-ap.com
APV8M44
APV8M24
Version 1.2.4
2022, December
TechnoAP Co., Ltd.

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Summary of Contents for TechnoAP APV8M44

  • Page 1 Hybrid Digital Spectrum Analyzer APV8M44 APV8M24 Instruction Manual Version 1.2.4 2022, December TechnoAP Co., Ltd. Add: 2976-15 Mawatari, Hitachinaka-shi, Ibaraki, Postcode: 312-0012 TEL: +81-29-350-8011 FAX: +81-29-352-9013 URL: http://www.techno-ap.com e-mail: info@techno-ap.com...

  • Page 2: Safety Precautions / Disclaimer

    APV8M44, APV8M24 Instruction Manual Safety Precautions / Disclaimer Thank you very much for purchasing the digitizer APV8108-14 (hereinafter "This board") of TechnoAP Co., Ltd. (hereinafter "We"). Please read this "Safety Precautions / Disclaimer" before using this device, be sure to observe the contents, and use it correctly.

  • Page 3: Table Of Contents

    APV8M44, APV8M24 Instruction Manual - Contents - Safety Precautions / Disclaimer ....................................2 １． Overview.............................................5 ２． Specifications ........................................7 ２．１． Specifications of DPP, from CH1 to CH4 ......................7 ２．２． Specifications of DSP, from CH5 toCH8 .......................7 ２．３． Common specifications ................................8 ３． Appearance ..........................................9 ４．...
  • Page 4 APV8M44, APV8M24 Instruction Manual ８．２． Start measurement ..................................53 ８．３． Histogram mode ....................................53 ８．４． List mode ........................................54 ８．５． Stop measurement ..................................54 ９． Quit ............................................... 54 １０． File ............................................55 １０．１． Histogram data file .................................. 55 １０．２． Waveform data file ................................. 58 １０．３．...

  • Page 5: Overview

    The APV8M44 and APV8M24 are equipped with a DSP from CH5 to CH8, which uses a 62.5 MHz, 14 Bit A/D converter, and the output signal from the detector preamplifier is processed in real-time by a trapezoidal filter (Trapezoidal Filter) processing in real-time by a pipelined FPGA architecture.
  • Page 6 (chassis) and AC power supply can be used directly is marked with APU instead of APV. As an example, the model in which the VME-type APV8M44 is installed in a unit is APU8M44.

  • Page 7: Specifications

    APV8M44, APV8M24 Instruction Manual ２． Specifications ２．１． Specifications of DPP, from CH1 to CH4 （１） Analog Input ・Number of channel 2CH, APV8M44 4CH, APV8M24 ・Input range ±1V ・Input impedance 50Ω ・Coarse gain ×1、×3 （２） ・Sampling frequency 500MHz, APV8M44 1GHz, APV8M24 ・Resolution...

  • Page 8: Common Specifications

    APV8M44, APV8M24 Instruction Manual （５） Digital pulse shaping ・Trigger timing LET（Leading Edge Timing）、 CFD（Constant Fraction Discriminator Timing） ・Time resolution 62.5ps ２．３． Common specifications （１） Communication interface ・LAN Ethernet TCP/IP 1000Base-T and UDP （２） Form ・VME type APV8M44、APV8M24 ・Desktop type APU8M44、APU8M44 （３）...

  • Page 9: Appearance

    APV8M44, APV8M24 Instruction Manual ３． Appearance （１） （２） （３） （４） （５） （６） （8） （7） （10） （9） （12） （11） （13） Photo 1 APV8M24 （１） P (green) lights up when power is turned ON, V (orange) and E (red) are not used （２）...
  • Page 10 APV8M44, APV8M24 Instruction Manual （１１） CLR LEMO 00.250 connector for external CLEAR signal input; TTL or LVTTL signal can be input to GATE or VETO to apply coincidence to the entire board. Clears the time counter data on the rising edge of "High".
  • Page 11 APV8M44, APV8M24 Instruction Manual * When external clock is used With the power off, change the jumper JP21 on the board to 1-6: CPU, input a 25MHz, 50% duty cycle LVTTL or TTL signal to CLK-I, and then turn the power on.

  • Page 12: Setup

    （２） Run setup.exe in the Installer folder on the supplied CD-ROM. Proceed with the installation in an interactive manner. The default installation destination is C:¥TechnoAP (3) In this folder, the executable file of this application and the configuration file config.ini, in which the setting values are saved, will be installed.

  • Page 13: Set Up Of The Network

    APV8M44, APV8M24 Instruction Manual ４．３． Set up of the network Check the communication status of this device and this application by the following procedure. （１） Turn on the PC and change the network information of the PC. ： 192.168.10.2 * Addresses not assigned to this device IP address ：...

  • Page 14: Screen Of The Application

    APV8M44, APV8M24 Instruction Manual ５． Screen of the application ５．１． Startup screen When this application is run, the following startup screen will appear. Figure 3 Startup screen (may differ from image due to options and updates) Menu File - open config...
  • Page 15 APV8M44, APV8M24 Instruction Manual Edit - IP configuration Change the IP address of this device calibration Execute when there is a disturbance in the wave from CH1 to CH4. Config Set all items to this device Clear Initialize histogram data in this device...
  • Page 16 APV8M44, APV8M24 Instruction Manual acquisition. TechnoAP Co., Ltd.

  • Page 17: Config Tab

    APV8M44, APV8M24 Instruction Manual ５．２． Config tab ５．２．１． CH tab DPP and DSP common settings Figure 4 config tab ON enable CH Availability. polarity The polarity of the input signal. pos is positive polarity, neg is negative polarity. LLD (digit) Energy LLD (Lower Level Discriminator).
  • Page 18 APV8M44, APV8M24 Instruction Manual Constant fraction timing of APV8M44 and APV8M24 is realized by digital signal processing using FPGA. ｆ × S(n) f(n) Delay �� ( �� ) = ����(��) − �� ( �� − ���������� ) The digital signal processing algorithm we have developed uses a polynomial approximation based on the least-squares method from sampled waveform data.
  • Page 19 APV8M44, APV8M24 Instruction Manual timing type Select the waveform to be used when time stamping the event detected (time stamp) from CFD waveform or LE (raw waveform). CFD: Constant Fraction Discriminator Timing For the different preamp waveforms, a and b in the figure below, the following waveforms c, d and e, f and g, h are generated.
  • Page 20 APV8M44, APV8M24 Instruction Manual Figure 5 Thinking of Constant Fraction Disicriminator Timing Leading Edge This is the timing when a certain trigger level t is reached. (Trigger acquisition timing is different if the slope of the rise is different, as in the case of 'a' and 'b', and the time is also different.
  • Page 21 APV8M44, APV8M24 Instruction Manual QDC sum/peak Select the output format of the QDC data: choose from peak or sum. When PEAK is selected, the PEAK value for When SUM is selected, FILTER is applied to the raw the raw waveform is output as a QDC value.
  • Page 22 APV8M44, APV8M24 Instruction Manual signal type Selects the input waveform type. fast sig should be set for NIM or Timing signal input. For other input signals, set to "normal” sig. CH tab Settings related to DSP CH analog coarse gain Select from 1x, 2x, 5x, or 10x.
  • Page 23 APV8M44, APV8M24 Instruction Manual * The throughput of the DSP is shown in the following equation (slow rise time + slow flattop time) × 1.25 slow pole zero SLOW-type pole zero cancellation; the falling undershoot or overshoot of the SLOW-type filter can be reduced by setting this value appropriately. The default value is 680.
  • Page 24 APV8M44, APV8M24 Instruction Manual * The above figure shows an example where the LLD is set to 955 and the ULD to 1045; you can see that the areas smaller than the LLD and larger than the ULD are not measured.
  • Page 25 APV8M44, APV8M24 Instruction Manual ５．２．２． ADVANCE tab Settings related to PSA (optional) CH of DPP Figure 9 ADVANCE tab Settings related to PSA (Pulse Shaping Analysis) calculation. In the PSA operation, if the input waveform is negative polarity, it is inverted to positive polarity, and the waveform is always considered positive polarity.
  • Page 26 APV8M44, APV8M24 Instruction Manual fall start cnt The start position of the target range for the integral value fall of the falling edge. The setting range is from 1 to 16383 (16383ns=16383 x 1ns). Set a value smaller than the fall stop cnt described below.
  • Page 27 APV8M44, APV8M24 Instruction Manual Figure 12 Example of total start cnt and total stop cnt settings PSA full scale Sets the reduction factor for the rise, fall, and total values of the list data. If the result of each integration exceeds 65535, this reduction factor is increased to keep the result within 65535.
  • Page 28 APV8M44, APV8M24 Instruction Manual and errors may occur in the list data acquisition. PSD ON/OFF (Option) Enable/Disable to display PSD graph if checked when acquiring data in list mode. If you try to generate a time difference spectrum at high count output, the CPU load will increase and errors may occur in the list data acquisition.
  • Page 29 APV8M44, APV8M24 Instruction Manual ５．２．３． OPTION tab Waveform data can be added during list mode Figure 13 list-wave related settings LIST-WAVE part list-wave delay (digit) Setting for list-wave mode. Adjusts the delay of the acquisition waveform. The setting range is from 0 to 30 digits. Read the acquired waveform and adjust the signal rise position.

  • Page 30: File Tab

    APV8M44, APV8M24 Instruction Manual ５．３． file tab Figure 14 file tab histogram save Saves the histogram data displayed in the histogram tab at the end of measurement to a file. The file is saved in the format described below. Valid only in histogram mode.
  • Page 31 APV8M44, APV8M24 Instruction Manual 9999999, reset to 0 if the number exceeds 9999999. file name The file name is displayed when the file is actually saved based on the list file path and list file number. TechnoAP Co., Ltd.

  • Page 32: Status Tab

    APV8M44, APV8M24 Instruction Manual ５．４． status tab Figure 15 status tab CH part input count Total input count. Number of events for which input was received. output count Output total count. Number of inputs processed. input rate (cps) Input rate, the number of events with input per second.

  • Page 33: Wave Tab

    APV8M44, APV8M24 Instruction Manual ５．５． wave tab threshold→ ↑trigger point Figure 16 wave tab Graph Waveform graph. waveform is displayed during measurement when wave is selected in mode. ON/OFF Set whether to display the data on the graph. Checked: displayed, unchecked: not displayed.

  • Page 34: Spectrum Tab

    APV8M44, APV8M24 Instruction Manual ５．６． spectrum tab Figure 17 spectrum tab Graph If histogram is selected in mode, an energy histogram is displayed during measurement spectrum on/off Set whether the histogram for each CH is displayed on the graph. If checked, the histogram is displayed;...
  • Page 35 APV8M44, APV8M24 Instruction Manual a is automatically calculated as 0.20397 and b as 6.958297 from 2-point calibration. manual Set the slope a and intercept b of the linear function y=ax+b and the unit label arbitrarily and set them on the x-axis. The units can be set arbitrarily.

  • Page 36: Timespectrum Tab

    APV8M44, APV8M24 Instruction Manual ５．７． timespectrum tab Figure 19 timespectrum tab * Settings related to timespectrum display. This setting is limited to the measurement within the board. * timespectrum is generated based on the list data acquired in the list mode.

  • Page 37: Psd Tab *Option

    APV8M44, APV8M24 Instruction Manual ５．８． PSD tab *option Figure 20 PSD tab * Generates PSD graphs and cursor area graphs based on the list data obtained in list mode. PSD Graph This is a two-dimensional histogram using the wave height values within two lists...

  • Page 38: Dpp Initialization

    APV8M44, APV8M24 Instruction Manual ６． DPP initialization ６．１． Connection （１） Make sure all equipment (VME power rack, HV (high voltage power supply), PC) is OFF （２） Connect the detector to the HV with a cable with SHV connector. （３） Connect the anode output signal from the detector to CH1 of this instrument with a LEMO connector coaxial cable.
  • Page 39 APV8M44, APV8M24 Instruction Manual Note the following If wave data is not displayed on the graph, it may not be triggered. First, to check the baseline, check "wave free run" in the wave tab and execute the menu Config → Clear → Start. You can check the baseline and the approximate wave height of the signal.

  • Page 40: Energy Spectrum Measurement

    APV8M44, APV8M24 Instruction Manual ６．４． Energy Spectrum Measurement （１） Set "mode" to "hist", make the following settings in the config tab, and then click on "Config" menu. Set the threshold value that was noted in the waveform measurement to the threshold in the config tab.

  • Page 41: ６．５． List And Time Difference Spectral Measurements

    APV8M44, APV8M24 Instruction Manual ６．５． List and Time Difference Spectral Measurements （１） Set "mode" to "list" and make the following settings in the config tab, then click on "Config" menu. Set the threshold value that was noted in the waveform measurement to the threshold in the config tab.

  • Page 42: ６．６． Coincidence And Anti-Coincidence Outputs

    APV8M44, APV8M24 Instruction Manual ６．６． Coincidence and anti-coincidence outputs The measurement information from CH1 to CH4 can be time, energy, and waveform fractionation information. In addition, it can determine the coincidence and anti-coincidence between input channels and output logic signals from the front panel terminals.

  • Page 43: Dsp Initialization

    APV8M44, APV8M24 Instruction Manual ７． DSP initialization ７．１． Connection （１） Make sure all equipment (VME power rack, HV (high voltage power supply), PC) is OFF. （２） Connect the detector to the HV with a cable with SHV connector. （３） Connect this device and a PC with a LAN cable.
  • Page 44 APV8M44, APV8M24 Instruction Manual From now on, the main settings of the DSP are configured in the DSP section of the CH tab in the config tab. TechnoAP Co., Ltd.

  • Page 45: Analog Fine Gain And Analog Pole Zero Adjustment Of Preamplifier Output Signal

    APV8M44, APV8M24 Instruction Manual ７．４． Analog fine gain and analog pole zero adjustment of preamplifier output signal The ultra-low noise high-speed programmable gain amplifier enables high-precision amplification of signals from preamplifiers that require fast rise time and low noise. The analog course gain can be set by selecting from 1x, 2x, 5x, and 10x in this application.
  • Page 46 APV8M44, APV8M24 Instruction Manual （３） Vary the analog pole zero value and adjust the pole zero so that the falling edge is flattened while switching the oscilloscope's vertical and horizontal ranges. Pole zero unadjusted Pole zero unadjusted Overshoot undershoot Figure 34 Before adjustment, Overshoot Figure 35 Before adjustment, Undershoot ↓...

  • Page 47: Fast Filter Setting

    APV8M44, APV8M24 Instruction Manual ７．５． FAST filter setting The instrument has FAST filters to obtain time information during radiation detection and SLOW filters to obtain energy (wave height). First, the settings related to the FAST system filter must be configured. The settings have the same characteristics as general timing filter amplifiers.
  • Page 48 APV8M44, APV8M24 Instruction Manual Describes the settings for FAST-type filters. （１） Connect the MONI output terminal to the oscilloscope, select the appropriate DAC monitor CH, and set the DAC monitor type to fast. Prepare to see this signal on the oscilloscope.

  • Page 49: Slow Filters Setting

    APV8M44, APV8M24 Instruction Manual ７．６． SLOW filters setting The SLOW trapezoidal filter performs SLOW trapezoidal shaping on the preamplifier output signal. As an algorithm for the Trapezoidal Filter, the filter block, which is composed of a pipeline architecture, calculates the delay, add/subtract, and integral values required for the Trapezoidal Filter in synchronization with the 100 MHz clock of the ADC.
  • Page 50 APV8M44, APV8M24 Instruction Manual The figure below shows the difference in pulse response between the conventional analog Semi Gauss Filter and the DSP, which has about 1/2 the time to peak and 1/3 the pulse width compared to the Semi Gauss Filter.
  • Page 51 APV8M44, APV8M24 Instruction Manual Figure 43 Difference in counting rate and energy resolution between Trapezoidal Filter and Semi Gauss Filter SLOW filter settings are described. （１） Connect the MONI output terminal to the oscilloscope and set the DAC monitor type to the appropriate CH-slow.

  • Page 52: Setting The Slow Threshold

    APV8M44, APV8M24 Instruction Manual ７．７． Setting the SLOW threshold First, input a somewhat large value (around 100) and observe the output rate (cps), then gradually decrease the slow trigger threshold, and find a value at which the output rate (cps) becomes large. This value is the boundary between signal and noise, so set the value to +3 to +10 from that value.

  • Page 53: Measurement

    APV8M44, APV8M24 Instruction Manual ８． Measurement ８．１． Setting （１） Click Menu Config to send all settings to this device. After the Config menu is executed, the histogram data in the DSP will be initialized. （２） To initialize the last measured histogram or measurement results, click on Menu Clear. To continue with the histogram data without initialization, start the next measurement without clicking on Menu Clear.

  • Page 54: List Mode

    APV8M44, APV8M24 Instruction Manual ８．４． List mode When "list" is selected in "mode" and measurement is started, the following is executed. The mode is displayed as "list". ⚫ The save LED blinks and the file size (in bytes) displays the size of the file currently being saved.

  • Page 55: File

    APV8M44, APV8M24 Instruction Manual １０． File １０．１． Histogram data file （１） File format CSV text format, separated by commas （２） File name Set arbitrarily （３） Component It consists of 4 parts: "Header" part, "Calculation" part, "Status" part and "Data" part...
  • Page 56 APV8M44, APV8M24 Instruction Manual slow risetime slow flat top time slow pole zero slow trigger threshold digital coarse gain digital fine gain inhibit width timing select CFD function CFD delay dsp bit sel *Saving per CH ends here. Mode Measurement mode...
  • Page 57 APV8M44, APV8M24 Instruction Manual [Data] Histogram data of each channel TechnoAP Co., Ltd.

  • Page 58: Waveform Data File

    APV8M44, APV8M24 Instruction Manual １０．２． Waveform data file （１） File format CSV text format, separated by commas （２） File name Set arbitrarily （３） Component It consists of 4 parts: "Header" part, "Calculation" part, "Status" part and "Data" part The Header, Calculation, and Status sections are the same as the histogram data described above.

  • Page 59: List Data File

    Presence of waveform. 0: without waveform. 1: with waveform. ・ Bit78 to Bit24 TDC count. 55bit. ・ APV8M24 is 1ns per Bit, APV8M44 is 2ns per Bit. Bit23 to Bit16 TDCFP, decimal count. 8bit. ・ APV8M24 is 3.90625ps Bit. Interpolation between sampling points 1ns ÷ 256 = 3.90625 ps.
  • Page 60 APV8M44, APV8M24 Instruction Manual （４） Component 128 bit per 1 event (16 Byte, 8 WORD) Bit127 RISE[15..0] FALL[15..0] TOTAL[15..0] WAV[0] TDC[54..40] TDC[39..24] TDC[23..8] TDC[7..0] TDCFP[7..0] CH[2..0] QDC[12..0] 図 47 list データフォーマット Bit127 to Bit112 RISE, Waveform Rise Partial Integral value. Unsigned 16-bit integer.

  • Page 61: List-Wave Data File *Option

    APV8M44, APV8M24 Instruction Manual １０．４． List-Wave data file *Option (1) File format Binary, network byte order (big-endian, MSB First) format (2) File name Set arbitrarily (3) Component ① Normal (in case of list data part 80Bit) Bit79 WAV[0] TDC [54..40] TDC [39..24]...
  • Page 62 APV8M44, APV8M24 Instruction Manual ② List with PSA (in case of list data part 128Bit) Bit127 RISE[ [15..0] Bit111 FALL[15..0] Bit95 TOTAL[15..0] WAV[0] TDC[54..40] TDC[39..24] TDC[23..8] TDC[7..0] TDC FP[7..0] CH[2..0] QDC[12..0] wave number[15..0] header[31..16] header[15..0] wave data[15..0] × wave number 分...

  • Page 63: Psd Data File *Option

    APV8M44, APV8M24 Instruction Manual ・ １０．５． PSD data file *Option （１） File format CSV text format, separated by commas （２） File name Set arbitrarily （３） Component The data in the PSD 2D histogram and the cursor area spectrum are variable-length data with a count of 1 or more.

  • Page 64: Troubleshooting

    APV8M44, APV8M24 Instruction Manual １１． Troubleshooting １１．１． Connection error occurs If you get a connection error at startup or in menu config, your network may not be connected properly. In this case, check the following. （１） Confirm that the IP in the configuration file config.ini is set to 192.168.10.128, that each port number...

  • Page 65: Histogram Is Not Displayed

    APV8M44, APV8M24 Instruction Manual １１．３． Histogram is not displayed If nothing appears on the graph after executing Menu Start, check the following （１） Set CH1 to ON in spectrum on/off in spectrum tab. （２） Check if input rate (cps) and output rate (cps) are counting.

  • Page 66: １２． Performance Of Apv8M44、8M24

    APV8M44, APV8M24 Instruction Manual １２． Performance of APV8M44、8M24 １２．１． Resolution of DSP The latest digital pulse processing technology enables high-resolution and high-count-rate spectroscopy. Throughput is achieved by employing digital signal processing using FPGA, eliminating the dead time of conversion, and reset times in conventional MCA. The throughput of this device is well consistent with the paralysis model curve m=ne^((-nτ)) where τ...
  • Page 67 APV8M44, APV8M24 Instruction Manual TechnoAP Co., Ltd. Add: 2976-15 Mawatari, Hitachinaka-shi, Ibaraki, Postcode: 312-0012 TEL: +81-29-350-8011 FAX: +81-29-352-9013 URL: http://www.techno-ap.com e-mail: info@techno-ap.com TechnoAP Co., Ltd.

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