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Radiation Oncology - Radiation Monitoring

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                     Radiation Monitoring

Ludlum Ion Chamber Survey Meter (Model 9DP)

The Ludlum Model 9DP, Pressurized ion chamber meter, provides highly sensitive measurements of exposure  
and exposure rate. It can simultaneously display the exposure rate and integrated value or the highest rate  seen by the instrument. The integrated value can be reset (if desired) using one of the four convenient frontpanel  mounted buttons.

• 0 to 50 mSv/h (0 to 5 R/hr) Range with μR/hr Sensitivity
• Sunlight Readable Color Display
• Auto Zeroing & Ranging
• Rechargeable Batteries
• Alarming Capability
• Rate, Integrate & Peak Hold Readouts
• Data Logging
• USB Connectivity
• Free Firmware Updates through Internet

Model 9DP


RADIATION DETECTEDgamma & X‐rays above 25 keV; beta above 1 MeV
OPERATING RANGESWith R/hr units : 0–500 μR/hr, 0–5 mR/hr, 0 –50 mR/hr, 0–500 mR /hr, 0–5 R/hr
With Sv/h units : 0–5 μSv/h, 0–50 μSv/h, 0–500 μSv/h, 0–5 mSv/h, 0–50 mSv/h
CHAMBER VOLUME230 cm³ (14 in³) volume pressurized to 8 atmospheres (117 psi)
RESPONSE TIME5 seconds in lowest range, 2 seconds in all other ranges, when measuring from 10% to 90% of
final value
MEASUREMENT READOUTSsimultaneous display of rate, integrated reading, and highest rate (peak hold)
LCD DISPLAY8.9 cm (3.5 in.) diagonal, 240 x 320 (H x W) pixels, TFT active matrix, 262,000 colors, 220 cd/m²
ALARMStwo levels of radiation alarms available, each are user programmable
AUTOMATIC FUNCTIONSauto ranging, auto zeroing, auto LCD backlighting
AUDIO OUTPUTSbuilt‐in unimorph speaker, > 60 dB at 0.6 meters (2 ft.)

Model 23-1: Electronic Personal Dosimeter
The Model 23‐1 Electronic Personal Dosimeter (Ludlum) is a solid and lightweight
(55.9 g/2 oz) pen‐type personal dosimeter. It can be used for measuring gamma or X‐ray radiation in medical and laboratory environments or other areas where
personal radiation monitoring is desired or required.
• 600 record data logging option available
• low weight and slim design
• audio alarm
• silicon semiconductor detector
• gamma and X‐ray (35 keV to 3 MeV)                                      

Electronic Personal Dosimeter
Personal Radiation Monitor - Model 25

Personal Radiation Monitor - Model 25

The Model 25 is a conveniently small‐sized device designed to warn users any time they are in a potentially harmful radiation environment. The unit will automatically alarm with a loud audible signal and blinking display when either the dose rate (0.01 mR/hr to 999 R/hr) or accumulated dose (0 to 1999 R) set points are exceeded.



G-236, Sector-63,
Noida - 201 303. INDIA

Phone: +91-120-2406096, 4263270
Fax: +91-120-2406097