HAMAMATSU R446HA Photomultiplier Tube

( Brand: Hamamatsu ), ( Manufacturer Part Number: R446HA ), ( Part Type: Tube )

Review HAMAMATSU Photomultiplier Tube Free

R446HA Hamamatsu Photomultiplier Tube - High Sensitivity and Reliable Performance

The R446HA Photomultiplier Tube (PMT) from Hamamatsu is a versatile and high-performance device, ideally suited for various scientific applications that require superior photon detection. This PMT model is a part of the prestigious R446 series, renowned for its reliability and efficiency.

The R446HA features a photocathode with a peak quantum efficiency of 22% at 420 nm, ensuring an efficient conversion of photons into electrical signals. Its large active area (6.9 mm diameter) allows for high photon collection efficiency, making it suitable for low-light detection tasks. The photocathode material, a combination of bialkali and antimony, contributes to its broad spectral response, covering the range from UV to near-IR (170 nm - 850 nm).

This Hamamatsu PMT employs a high-density, multi-stage dynode structure consisting of nine dynodes. This design ensures a high gain of up to 9 x 10 6, amplifying the weak photocurrent generated by the photocathode to a detectable level. The dynode structure also features a unique graded-gap design, which minimizes electron avalanche and reduces noise, resulting in improved overall signal-to-noise ratio.

The R446HA PMT is housed in a hermetically sealed, dual-window glass tube, providing excellent protection against external factors such as humidity and contamination. The tube is also equipped with a base featuring a gold-plated Centronic-type pin for easy electrical connection.

In addition to its exceptional photo-detection capabilities, the R446HA also boasts a fast rise time of approximately 1.5 ns and a fast decay time of approximately 5 ns. This fast response time makes it suitable for applications that require quick and accurate detection, such as particle physics and time-resolved spectroscopy.

In conclusion, the R446HA Photomultiplier Tube from Hamamatsu offers a combination of high sensitivity, broad spectral response, fast response time, and reliable performance, making it an ideal choice for various scientific applications requiring efficient photon detection.

1. **High Quantum Efficiency:** The R446HA offers a high quantum efficiency, which means it can convert a significant percentage of incoming photons into electrical signals, making it suitable for applications that require high sensitivity.

2. **Wide Dynamic Range:** This photomultiplier tube has a wide dynamic range, enabling it to handle a broad range of light intensities.

3. **Low Dark Count Rate:** The R446HA has a low dark count rate, which is the number of counts recorded in the absence of light. This is advantageous as it reduces noise and improves signal-to-noise ratio.

4. **Good Time Resolution:** This photomultiplier tube has a good time resolution, which is crucial for applications that require timing information, such as particle detection.

1. **High Cost:** The R446HA is a premium product and can be quite expensive compared to other photomultiplier tubes.

2. **Delicate Construction:** Photomultiplier tubes, including the R446HA, are delicate and require careful handling to prevent damage.

3. **Requires High Voltage:** The R446HA operates at a high voltage, which can be a safety concern and may require special power supplies.

The Hamamatsu R446HA Photomultiplier Tube is a high-performance product suitable for applications that require high sensitivity, wide dynamic range, good time resolution, and low dark count rates. However, its high cost, delicate construction, and need for high voltage may make it less suitable for budget-conscious users or those without the necessary safety measures.

If the requirements of your application align with the strengths of the R446HA and you have the necessary budget, safety measures, and handling expertise, then the Hamamatsu R446HA could be a suitable choice. Otherwise, it may be worth considering other, less expensive photomultiplier tubes that still meet your application's needs. Always ensure to carefully evaluate your specific requirements and constraints before making a purchase decision.

Details:

part #: r446ha prices

• $56.96-$250.00

specifications industrlasemr:

• brand: Hamamatsu
• mpn: R446ha
• part type: Tube

General industrlasemr:

• in stock: Yes
• condition: Used
• businessindustrial > mroindustrial supply > lightinglasers > industrial lasers lighting lasers

Payments industrlasemr:

• PayPal

Offer industrlasemr:

• best offer: true
• quantity: 1
• Sold: 0
• bids: 0
• Started: November 22, 2017, 6:24 pm

Ratings:

1. : .Thank You!.: . Highly Recommend: .Great Seller!!!.: 09-18-17
2. As described 09-13-17
3. : .Thank You!.: .Nice seller: .Great Seller!!!.: 09-18-17
4. I HAVE RECEIVED YOUR ITEM WITH THANKS 09-30-17
5. Good transaction. Thanks 09-30-17

Shipping industrlasemr:

• type: Flat
• cost: $0.0
• handling: 1 days

Returns industrlasemr:

• type: Money Back
• details: Returns accepted ONLY if item is not as described and/or pictured. Implied or assumed on behalf of BUYER does not apply. Item must be returned in the EXACT condition it was originally sent.
• policy: returns accepted
• paid by: Buyer
• time: 14 Days

Seller industrlasemr:

• zipcode: 63147
• city: Saint Louis, Missouri

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