Attachment_1-_Requirements_-_Amendment_00001.docx

Attachment 1 - Requirements

122 keV photons/cm2- second and separately to Ba-133 shielded by 5mm of steel producing 1.44 ± 10% 356 keV photons/cm2-second, based on a background of

7.5 µR/hr. Background exposure rate was measured with a GE RS PIC.

Demonstrate a PD of 80% or more when exposed for up to 30 seconds (dwell time) to Co-57 shielded by 5mm of steel producing 1.27 ± 10% 122 keV photons/cm2-second and separately to Ba- 133 shielded by 5mm of steel producing 0.89 ± 10% 356 keV photons/cm2-second, based on a background of 7.5 µR/hr.

Background exposure rate was measured with a GE RS PIC.

Desired performance characteristics are the ability to detect the smallest amount of R/N material, with the most shielding, at the greatest distance, while maintaining a low probability of false alarms. The alarm signal threshold settings must be the same as those used for the false alarm tests, and device orientation must be as used in standard operations (on the belt for detection). For testing, the flux to be detected will be scaled as the square root of the ratio of the current test site background exposure rate to the background exposure rate on which the requirement was based. Scaling of the specified flux conditions for evaluation purposes will be done using a device more appropriate than the GE RS High Pressure Ionization Chamber (HPIC). Radiation background measurement corresponding to that originally reported by the HPIC are 5.75 μR/h using a 2 x 2 inch NaI scintillator with reported energy range of 25 keV to 3 MeV. The background will vary between 0.34 µR/hr to 25 µR/hr. An energy calibrated HPGe detector is used to measure and determine the counts in the appropriate region of interest and then determine the flux at the point where the PRDs’ reference points will be placed.

6.3. Alarm within 2 seconds after exposure to an increase in the radiation level of 50 µR/h that occurs over a period of no more than 0.5 s.

Objective = Threshold

FR-01-02

The device shall have user adjustable settings for notification/alarm levels.

Allows user to set/change levels at which the device will alert the operator to the presence of gamma and neutron (if included) radiation.

Objective = Threshold This a unique indication for detection of radiation of interest for the security mission. OR-4 requires a separate settable/configurable alarm for personal safety levels.

OR-2

Key Performance Requirement (KPP)

photons/cm2-second at point of closest approach of 170 centimeters (cm) and separately to Ba-133 shielded by 5mm of steel producing 2.42 ± 10% 356 keV photons/cm2- second at point of closest approach of 330 cm, based on a background of

7.5 µR/hr. Background exposure rate was measured with a GE RS PIC.

At a constant relative speed of 1.50 m/s demonstrate a PD of 80% or more, when exposed to Co-57 shielded by 5mm of steel producing 4.54 ± 10% 122 keV photons/cm2-second at point of closest approach of 170 cm and separately to Ba- 133 shielded by 5mm of steel producing 2.42 ± 10% 356 keV photons/cm2-second at point of closest approach of 330 cm, based on a background of 7.5 µR/hr.

Background exposure rate was measured with a GE RS PIC.

Desired performance characteristics are the ability to detect the smallest amount of R/N material, with the most shielding, at the greatest distance and relative speed, while maintaining a low probability of false alarms. The alarm signal threshold settings must be the same as those used for the false alarm tests, and device orientation must be as used in standard operations (on the belt for detection). For testing, the flux to be detected will be scaled as the square root of the ratio of the current test site background exposure rate to the background exposure rate on which the requirement was based. Scaling of the specified flux conditions for evaluation purposes will be done using a device more appropriate than the GE RS High Pressure Ionization Chamber (HPIC). Radiation background measurement corresponding to that originally reported by the HPIC are 5.75 μR/h using a 2 x 2 inch NaI scintillator with reported energy range of 25 keV to 3 MeV. The background will vary between 0.34 µR/hr to 25 µR/hr. Distance and speed both must be scaled with the square root of the ratio of the target activity to the actual activity of the test source used. An energy calibrated HPGe detector is used to measure and determine the counts in the appropriate region of interest and then determine the flux at the point where the PRDs’ reference points will be placed.

OR-3 KPP

Maritime variant only

FR-03-01

Maritime variant only

The instrument shall not indicate the presence of neutrons when exposed up to a 10 mR/h field of Cs-137.

FR-04-01

6.6 Displayed exposure rates within +/-30% of the conventionally true value of the applied exposure rate across the applicable photon energy range of the device (e.g. use Am- 241 and Co-60 in addition to Cs-137)

FR-04-02

FR-04-03

FR-04-04

6.8. Recover within 1 minute following exposure to 2 times the maximum design exposure rate.

Recover within 15 seconds following exposure to 2 times the maximum design exposure rate.

FR-04-05

Maritime variant

µGy/h, µSv/h) Provide option to change display to a numerical value that is proportional to the exposure or dose rate, but not explicitly report as the exposure or dose rate (e.g., display numerical range of 0-9)

FR-04-06

General purpose variant

µrem/h, µGy/h, µSv/h)

OR-5

FR-05-01

neutrons/cm2-second Objective = Threshold

FR-08-01

FR-08-02

FR-08-03

Responders will need to explain if the device automatically updates and how it acquires and uses neutron background radiation.

FR-08-04

Responders will need to describe how the device accounts for changing background conditions

OR-11

General purpose variant only

state. At minimum, operational/maintenance state data should be logged when the state changes. ANSI N42.32- 2006 section 5.16 provides additional detail.

FR-11-01

FR-11-02

FR-11-03

OR-11a

OR-11b

FR-11b-01

The system shall encrypt data when transferring to DHS information systems using “wireless” means (i.e., wireless, Bluetooth, infrared).

Use encryption that is FIPS 197 (AES‐256) compliant and has received FIPS 140‐2 validation.

Objective=Threshold

Responders will need to specify the level of encryption and provide the appropriate certification(s) per the requirement.

"frequently used qualitative check to determine that an instrument is operational and capable of performing its intended function" (e.g., sufficient battery life, detector present and working, memory (if included) available, mode of operation). Any operational checks that require radioactive sources must use commonly available exempt quantity radioactive sources. OR 21 specifies that the user interface provide the indications necessary for operational checks.

Responders will need to describe the required schedule maintenance, if any, and any system operational checks or basic operator maintenance.

FR-14-01

FR-14-02

OR-15

42.32-2006 section 5.15. Suitable battery life beyond the threshold is based on if the batteries are rechargeable or replaceable.

Rechargeable batteries acceptability must consider allow for a shorter operating period between charges, time to recharge and number of recharge cycles before degradation. Whereas replaceable batteries may increase lifecycle cost due to maintaining an operational supply of spares. So a longer battery life for replaceable batteries operating period is desired. Even if a device uses rechargeable batteries, it should accept common, commercial batteries in case charge is lost and recharge capability is unavailable or untimely.

Responders will need to specify how long the device will operate without needing to replace or recharge the power supply.

FR-15-01

FR-15-02

FR-15-03

FR-15-04

FR15-05

Temperature Shock (7.2), Relative Humidity (7.3), Moisture and Dust Protection (7.4), and Cold Temperature Startup (7.5) except the lower temperature limit is -30oC In addition to threshold meet International Electrotechnical Commission (IEC) IP- 63 dust and moisture protection and lower temperature limit at -40 degrees Celsius.

OR-17a KPP Maritime variant only

The system shall operate without degradation in maritime specific environments.

In accordance with MIL- STD-810G, Table C-I, and Part Two,509 – Salt Fog, and IEC IP-65

Maritime variants shall meet these specific maritime operational environments in addition to the general operational environments specified in OR-17

Electromagnetic Performance Requirements

Responders will need to provide the appropriate certification per the requirements

OR -20

The system shall be capable of being worn by operators as standard equipment.

Not to interfere with the operator’s movement or activities while conducting routine duties.

PRDs are pocket sized and worn on the body as part of and with standard mission equipment. They may be worn on/attached to the front of the uniform OR duty belt OR MOLLE® type webbing on issued body armor depending on operational environment. The operator shall be able to get in and out of vehicles without the device being hung up or inadvertently removed from the operator.

OR-20a

The device shall be small.

The length of the device shall be equal to or less than (≤) 13.1 cm.

The length of the device shall be equal to or less than (≤) 9.8 cm.

Dimensions are based on the device only and does not include the carrying pouch or any form of belt clips or lanyards. Device meeting this length requirement must also have the dimensions of width and depth, when multiplied by the length that do not exceed the volume requirement of OR-20b.

OR-20b

The device shall have a small volume

The volume of the device shall not exceed 200 cm3.

The volume of the device shall not excceed150 cm3.

Volume is based on the device only and does not include the carrying pouch or any form of belt clips or lanyards.

OR-20c

The device shall be lightweight.

Mass of the device not to exceed 200 grams.

Additional holster, case, or removable clip shall not exceed 40 grams.

Mass of the device not to exceed 170 grams. Additional holster case, or removable clip shall not exceed 40 grams.

Weight of device is with or without neutron detection and includes batteries, but does not include attachment devices such as clips, holster, or case. Methods for attaching the device to operator’s equipment is constrained to a maximum of 40 grams.

FR-20-01

The device shall be attachable to operators' standard equipment

The device shall include a means to securely fix the device to the operator, with attention given to the necessary orientation of the detector and display.

Device holster/case type accessories should be able to be secured to both the MOLLE® type webbing on issued body armor as well as the duty belt depending on operational environment.

FR-20-02

The device shall have a reference point.

The device shall have a reference point and indicate its orientation with respect to the operator.

Clearly indicate proper orientation for wearing and when localizing (holding in hand). The presence of a clip may be used as the reference point to indicate proper orientation.

FR-20-03

OR - 21

The system shall provide notifications to operator in a covert and overt manner.

Selectable between visual, tactile and audible.

In addition to threshold, permits use of headphones

FR-21-01

The device shall have a visual display.

In accordance with ANSI 42.32-2006, Section 5.7.

Over the entire temperature range, easily readable under different light conditions from low light (<150 lux) to intense light (>10000 lux)

FR-21-02

The device shall provide an audible detection alarm to indicate an increase in the radiation level that is greater than the alarm set point and for maintenance/battery alerts.

In accordance with ANSI N42.32-2006, Section

5.8. A-weighted sound level at a distance of 30 cm shall be at least 85 dB(A).

FR-21-03

5.9. The vibration shall have sufficient intensity to inform the operator of an alarm condition. The intensity shall be greater than 0.8g.

FR-21-04

OR-22

FR-22-01

FR 22-02

5.1. Controls adequately protected from inadvertent operation/engagement.

FR-22-03

2. Count rate of neutron radiation (where applicable) with associated unit, e.g., cps (counts per second) or cpm (counts per minute).

3. Indication of alarm state 4.

Maintenance/operational status

5. Visible indicator of remaining battery life.

6. Over range indication

FR-22-04