Product Overview
Canberra Model 3105 H.V. Power Supply, 0 to 5000V Detector Bias for NIM Bins
Condition
Used, clean and in good condition. Each unit was powered on and its output was checked with a meter, matching the front-panel meter, and held steady across the 0 to 5000V range while following the adjustment dial. Front panel markings legible: H.V. Power Supply, Model 3105, Positive, Negative, 0 to 5000V, On, Canberra. Rear markings: High Voltage J1, Inhibit J2.
Ships same or next business day from our Idaho warehouse. Selling online since 1999.
A no-hassle satisfaction guarantee on every order.
Product Overview
Canberra's Model 3105 is a high voltage supply built as a Nuclear Instrumentation Module (NIM), so it slides into a standard NIM bin and draws its power from the bin. It provides the 0 to 5000V DC bias that radiation detectors need, set with a multi-turn dial and read on a front-panel meter scaled 0 to 5 kV. Lamps marked Positive and Negative show the output polarity, and a rear Inhibit input lets other electronics shut the high voltage down.
Key Features
- Output adjustable 0 to 5000V DC
- Multi-turn counting dial for the output setting
- Front-panel analog meter scaled 0 to 5 kV
- Positive and Negative polarity lamps
- Front On/Off toggle
- Rear High Voltage output connector (J1) and BNC Inhibit input (J2)
- Single-width NIM module with the standard NIM power connector on the rear
Applications
- Biasing a germanium or silicon detector in a gamma or alpha spectroscopy chain
- Powering a photomultiplier tube on a scintillation detector
- Keeping a spare bias supply in the rack so a failed module does not stop a counting lab
Frequently Asked Questions
Does it need a NIM bin to run?
Yes. It takes its operating power from the bin through the rear NIM connector.
Was it powered up?
Yes. The output was checked with a meter, agreed with the front-panel meter, and held steady across the dial's range.
Are cables included?
Not included.
Can a detector preamp shut the high voltage off?
Yes. The rear BNC marked Inhibit (J2) takes that signal, such as the warm-up line from a germanium detector preamp. The output was checked with a meter and held steady across 0 to 5000V. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
A detector without bias is just a quiet crystal. Turn this dial and it starts listening again.
