DESCRIPTION
The MCA527 is a high performance 16k Multi-Channel Analyzer/Multi-Channel Scaler module with the performance of a laboratory grade MCA. High voltage supply for detector and preamplifier power supply are integrated as well as an internal coarse amplifier and digital filter. Together with a detector it forms a small-size gamma spectroscopy system, which is well suited to the demands of field measurements for international safeguards, environmental monitoring, nuclear waste treatment facilities, radioactive transport control and similar applications.
Furthermore, the MCA527 supports a vast number of different detectors and its 16k resolution is adequate to support high resolution gamma spectrometry with HPGe detectors. As the MCA527 works with digital filtering, it allows setting a broad range of filter time constants and it is also tolerant to largely differing preamplifier signal shapes. The application programs from our MCA software family are free of charge and allow operating the device as a general purpose multi channel analyzer, multi channel scaler, universal counter, or oscilloscope. As an option we offer the possibility to use the MCA527 as a multiplicity or neutron coincidences counter, operating in List Mode.
KEY FEATURES | BENEFITS |
Up to 16k channel resolution. | High performance gamma spectroscopy with HPGE detectors. |
Very low power consumption of 0.7W . On board μSD-card holder. | Capability to perform long time autonomous field measurements. |
Equipped with high capacitive Li-Ion batteries. | 10h–25h operation time without external power (depends on detector). |
Dimensions in compact format,Easy-view front panel layout. | Excellent operability and mobility. |
High Voltage up to (+) or (-) 5000V supported. | Large types of HPGE detectors can be applied. |
Optionally firmware extension on list modes. | The MCA527 can be used as a multiplicity or neutron coincidence counter. |
Technical Specification
MCA527
Spectrometric Performance | Bandwidth (3dB) | 0 – 1.4Mhz | |
Example: Resolution: 16k channels Detector: HPGE 500mm2 planar, Count rates <10kcps Source: Am241 @ 59keV | FWHM) @ 2μs shaping time <460eV | Linearity | <0.1% |
Throughput into memory (input rate 150kcps, 0.2μs shaping time) | > 100.000cps | Temperature Stability | TK50 |
Operation Modes | Coarse Gain Steps | 2, 5, 10, 20, 50 | |
PHA (Pulse Height Analysis) | √ | Full Scale Input Ranges /Volt | 12.5, 5, 2.5, 1.25, 0.5 |
MCS (Multichannel Scaling) | √ | DC Offset Adjustment Range | (-10% to 90%) of full scale for positive input signals (-90% to 10%) of full scale for negative input signals |
Sample Mode (Transient Record) | √ | Analog Digital Converter | |
Oscilloscope Mode | √ | Sample Rate | 10MS/s |
Firmware Repeat Mode | √ | Resolution | 14bit |
Autonomous Repeat Mode | √ | Integral non-linearity | ≤ 0.05% |
Gate Mode (by time) | √ | MCA Power Supply | |
Gate Mode (by state) | √ | Input Voltage DC | 4V – 9V |
List Mode (optional) | √ | Li - Ion rechargeable batteries | 31.2Wh |
Digital Signal Processing | Power consumption (running, without detector, HV off) | 0.7W | |
Trigger Filter | single and double differential filtering | Power supply for Detector | |
Differential non-linearity(for 2k, @ 1μs shaping time) | <1% | Preamp Power Supply | ±12V, ±60mA ±24V, ±60mA |
Pile Up Rejection | √ | HV Supply | up to (+) or (-) 3600V up to (+) or (-) 5000V (optional) |
Pulse Pair Resolution | ~400ns | Mechanical | |
Trigger Threshold Adjustment | automatically / manually | Dimensions L x W x H (mm) | 181 x 111 x 45 |
Shaping Time | 0.1μs to 25.5μs, step 0.1μs | Weight | 820g |
Flat Top Time | 0μs to 15μs, step 0.1μs | Housing Material | eloxed aluminum |
Fine Gain Adjustment | 0.5 to 6.5, step 0.0001 | Communication & Connections | |
Channel Splitting | 128, 256, 512, 1024,2048, 4096, 8192, 16384 | Computer Interfaces | USB, Ethernet, RS232 |
Max counts in a channel | 232 - 1 | Sockets & connections : SHV for HV, BNC for signal, Lemo (00) for gate Input, SUB_D9 for preamp supply and AUX-IN, μSD holder power supply connector (bayonet lockable) Lemo 9pin (extension port), 6pin (RS232) | Extra connections: SUB_D9/ pin3: aux analog input SUB_D9/ pin5: HV inhibit or ohmmeter SUB_D9/ pin8: 1-wire for temp.- sensor Bluetooth (adapter @ext. port, optional) GPS (adapter @ext. port, optional) |
Base Line Restorer | BLR with adjustable averaging | Environmental Conditions | |
Pole Zero Adjustment | Decay time down to 40μs can be compensated | Operation Temperature Range | 0°C – 50°C |
Peak Stabilization Modes | standard mode LED mode | Humidity | ≤90%, non condensing |
Amplifier Unit | IP Protection Class | IP42 | |
Amplifier Type | DC coupled, offset adjustable | ||