| Gas Flow Detectors : |
(Standard, α & β) These Ar/CH4 detectors are extremely sensitive and have no internal dead areas. Their thin windows are protected by strong, fine hex-mesh grilles, giving maximum strength vs. sensitivity factor, with 75% transmission. Flat plateau responses to all normally encountered α or β emitters guarantee stable long-term sensitivity and maximum gamma background rejection. |
| Sensitivities : |
α (Am241) 240 dpm 0.04 Bq/cm^2 ; β (Cs137) 2400 dpm 0.4 Bq/cm^2 ; β (Co60) 5000 dpm 1.0 Bq/cm^2 |
| Sealed Gas Detectors (Optional) : |
These Ar/CO2 detectors are mechanically interchangeable with standard gas flow detectors. They are permanently sealed and rugged, with 5 mg/cm2 titanium windows. Their beta energy response extends down to C14 energies (157 keV). Ar/CO2 detectors are insensitive to alpha, less affected by radon, and have high gamma background rejection. |
| Efficiencies: (% surface emission, from large sources placed on the detector grille) : |
Sr90/Y90 (Body) 39 (Hand) 37 (Foot) 31 ; Cl36 (Body) 37 (Hand) 32 (Foot) 30 ; Co60 (Body) 25 (Hand) 21 (Foot) 20 ; C14 (Body) 6 (Hand) 6 (Foot) 4 ; Ba133 (Body) 1.6 (Hand) 1.6 (Foot) 1.4 ; Fe55 (Body) 0.3 (Hand) 0.4 (Foot) 0.35 |
| Integrated Gamma Detectors (Optional) : |
There are two available configurations of additional gamma scintillation detectors. The passive internal monitor (PIM) option provides a lung/nasal/pharyngeal/gut gamma detector, plus lead shielding, mounted behind the body detector array. The ‘full’ gamma option provides six large area body detectors with lead shielding behind the standard body detectors, plus a gamma foot detector. On the IPM9A, two additional hand detectors are installed in the back wall. |
| Options : |
Small Articles Monitor, Alpha-On-Body , Barrier Control (IPM9A only) , Alpha Overhead Detector (IPM9A only) , Additional Gas Flow Foot Detector , Voice Prompts and Display Languages , Last Results Recall , Networked Data-logging & Control System , External LCD , Check Sources |
| Gas Flow Detectors : |
18 body detectors, 4 for hands, 1 (or 2) for feet and 1 for the head (IPM9A option only). |
| Window : |
0.9 mg/cm^2 |
| Gas : |
92.5% Argon, 7.5% Methane. Other gases possible. Connection via a bulkhead fitting to accept a 3 mm internal diameter tube. |
| Sealed Gas Detectors : |
18 body detectors, 4 for hands, 1 (or 2) for feet and 1 for the head (IPM9A option only). Window: 5 mg/cm^2 ; Gas: Argon/CO2. |
| Scintillation Gamma Detectors : |
Lead shielding: 20 mm (0.75”) |
| Monitoring Time : |
Autotime: 1 to 100 s in 1 s steps |
| Background Update Time : |
100 s rolling average |
| Precision : |
Defined by keypad-entered parameter. Probability of false alarm: between 0.1 and 10 standard deviations. Probability of detection: between 0 and 10 standard deviations. |
| Construction : |
Self-contained free-standing metal cubicle with fork truck lifting points. |
| Power Requirements : |
85 to 264 V ac, autoranging. 47 to 63 Hz, 360 VA max. |
| EMC Compatibility : |
IPM9s are CE marked and LVD compliant |
| Dimensions : |
IPM9A: 2290 H x 1130 W x 1000 D mm (90” H x 44.5” W x 39.5”D) plus 160 mm (6.3”) per door. IPM9D: 2250 H x 1100 W x 875 D mm (88.5” H x 43.5” W x 34.5” D) |
| Weight : |
410 kg (900 lb) approx. net without gamma or scintillation options. Shipping weight, 580 kg (1280 lb) approx. |