PTCal150 Enabling Precision Dosimetry in Phototherapy & PDT

Designed with research-grade optical components, the PTCal150 spectroradiometer enables the highest accuracy data on patient exposure, and provides complete confidence in phototherapy radiometer calibration.

Determine warm-up characteristics and gain knowledge of the temporal variation of irradiance to guide the application of phototherapy and PDT.

A compact double monochromator with precision cosine corrected input optic provides excellent stray light performance over a very wide dynamic range, allowing for precise measurement of tungsten filament, LED, metal halide, xenon arc, fluorescent and dichroic sources alongside full-spectrum lamps.

Core benefits

Features

  • Double monochromator-based spectroradiometer with precision transmission cosine diffuser
  • Built-in PMT high voltage supply and dual channel, six-decade picoammeter, offering an impressive dynamic range
  • Flexible fire bundle with optional side or end-view entrance optic to conveniently couple light from the transmission diffuser to monochromator
  • Set in a single, robust housing for ease of transport between clinics and laboratories
  • Windows control software (BenWin+) provides full automation via USB 2.0

Reported Parameters

  • Spectral irradiance 
  • Erythemal irradiance

Entrance Optic

Entrance optic type

BenFlect precision transmission diffuser (in-line or right angle configuration)

Aperture diameter

10mm

f2’

<1%

Coupling

Randomised pure fused silica fibre bundle, from 0.5m long

Monochromator

Monochromator Type

Compact double monochromator, additive dispersion. Czerny-Turner mount.

Focal-length

150mm (each unit)

Slits

Fixed, interchangeable

Gratings

Grating pair, kinematically mounted, 33x33mm

Stray light rejection at 10x FWHM from peak

10-8

Optical Performance/ Configuration

2400 g/mm (UV configuration)

1800 g/mm (UV-Vis configuration)

Spectral range

200-600nm

250-800nm

Typical bandwidth

1, 2 or 5nm

1, 2 or 5nm

Wavelength accuracy

± 0.15nm

± 0.20nm

Wavelength reproducibility

± 0.05nm

± 0.07nm

Detector and Detection System

Detector type

S20 photocathode end window photomultiplier tube

Detector High Voltage

-750V (adjustable)

Detector response range

200-850nm

Detector dark current (typ.)

500pA

Picoammeter current range

Sub 1pA to 100µA

Picoammeter ADC resolution

> 14 ½ bit

Picoammeter ADC integration time

100ms

General

Interface

USB 2.0

Software control

BenWin+ Windows application

Operating System

From Windows 7

Minimum HD/ RAM required

100MB/ 256 MB

Overall dimensions

Approx. 395L x 315W x 250H (mm)

Power

Mains input 110/220V 50/60Hz

Calibration Standard (200-300nm)

Lamp type

Deuterium lamp

Nominal lamp power and voltage

30W, 100 V

Operating current

300mA DC

Expected lifetime

2000h

Power Supply

PSU_706 deuterium lamp supply

Calibration type and wavelength range

Spectral irraidance at 5.5mm from plane of front face, 200-400nm (2nm steps)

Calibration traceability

Physicalish Technische Bundesanstalt (PTB, Germany)

Calibration Standard (250-800nm)

Lamp type

Halogen lamp

Nominal lamp power and voltage

150W, 24 V

Operating current

6.300 A DC

Expected lifetime

2000h

Power Supply

PSU_610 current stabilised lamp power supply

Calibration type and wavelength range

Spectral irradiance at 5.5mm from plane of front face, 250-800nm (5nm steps)

Calibration traceability

Physicalish Technische Bundesanstalt (PTB, Germany)

Options

PTCal150_0001

PTCal150 spectroradiometer (250-600nm)

PTCal150_0002

PTCal150 spectroradiometer (200-600nm)

PTCal150_0003

PTCal150 spectroradiometer (250-800nm)

PTCal150_0004

PTCal150 spectroradiometer (200-800nm)

Ordering Information

PTCal150_0001

PTCal150 spectroradiometer (250-600nm)

PTCal150_0002

PTCal150 spectroradiometer (200-600nm)

PTCal150_0003

PTCal150 spectroradiometer (250-800nm)

PTCal150_0004

PTCal150 spectroradiometer (200-800nm)

Share this:

The Bentham Standard

We’re with you from the first call to the final result

Call us on +44 118 975 1355 or email us